CN115021548A

Movatterモバイル変換

Info

Publication number: CN115021548A
Application number: CN202210617665.1A
Authority: CN
Inventors: 伍飞宇; 赵珊; 金祖勇; 刘圣义; 余磊; 朱慧玲
Original assignee: Big Pawer Electrical Technology Xiangyang Co ltd
Current assignee: Big Pawer Electrical Technology Xiangyang Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2022-09-06

Abstract

Description

Translated fromChinese

一种变频器软起动切换时间的控制方法、装置及电子设备A control method, device and electronic equipment for switching time of inverter soft start

技术领域technical field

本发明涉及开关柜控制技术领域，尤其涉及一种变频器软起动切换时间的控制方法、装置及电子设备。The invention relates to the technical field of switch cabinet control, in particular to a control method, device and electronic equipment for switching time of a soft start of a frequency converter.

背景技术Background technique

开关柜硬起动不仅会对电网造成严重的冲击，而且会对电网容量要求过高，起动时产生的大电流和震动对挡板和阀门的损害极大，对设备、管路的使用寿命极为不利。因此，需要使用变频器来控制开关柜的起动，变频器的软起动功能使得开关柜的起动电流从零开始变化，最大值也不超过额定电流，减轻了对电网的冲击和对供电容量的要求。The hard start of the switchgear will not only cause serious impact to the power grid, but also require too much power grid capacity. The large current and vibration generated during start-up will cause great damage to the damper and valve, and will be extremely detrimental to the service life of equipment and pipelines. . Therefore, it is necessary to use the inverter to control the starting of the switchgear. The soft-start function of the inverter makes the starting current of the switchgear change from zero, and the maximum value does not exceed the rated current, which reduces the impact on the power grid and the requirements for power supply capacity. .

然而，现有技术中，利用变频器对开关柜进行软起动控制时，由于下达指令时间与开关柜的实际起动时间存在偏差，导致切换瞬时电流过大，超过供电容量，对电网的冲击过大，影响生产。However, in the prior art, when the frequency converter is used to control the soft start of the switchgear, due to the deviation between the command time and the actual start time of the switchgear, the instantaneous switching current is too large, exceeding the power supply capacity, and the impact on the power grid is too large. ,affect production.

因此，需要解决现有技术中，变频器下达指令时间与开关柜的实际起动时间存在偏差，导致的切换瞬时电流过大的问题。Therefore, it is necessary to solve the problem of excessive switching instantaneous current caused by deviation between the time when the frequency converter issues the command and the actual starting time of the switch cabinet in the prior art.

发明内容SUMMARY OF THE INVENTION

有鉴于此，有必要提供一种变频器软起动切换时间的控制方法、装置及电子设备，用以解决现有技术中变频器下达指令时间与开关柜的实际起动时间存在偏差，导致的切换瞬时电流过大的问题。In view of this, it is necessary to provide a control method, device and electronic equipment for the switching time of the soft start of the frequency converter, so as to solve the problem of the deviation between the command time of the frequency converter and the actual start time of the switch cabinet in the prior art, resulting in the instantaneous switching time. problem of excessive current.

为了解决上述问题，本发明提供一种变频器软起动切换时间的控制方法，包括：In order to solve the above problems, the present invention provides a method for controlling the soft start switching time of a frequency converter, including:

获取开关合分闸电流图；Obtain the switch closing and opening current diagram;

根据开关合分闸电流图，得到开关柜的初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值；According to the switch closing and opening current diagram, the initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time of the switchgear are obtained, and the optimal value and closing time of the opening command issuing time of the switchgear are determined. The optimal value of the command issuing time;

根据分闸命令发出时间最优值和合闸命令发出时间最优值，调整开关柜的分闸命令发出时间和合闸命令发出时间。According to the optimal value of the issuing time of the opening command and the optimal value of the issuing time of the closing command, adjust the issuing time of the opening command and the closing command of the switch cabinet.

优选的，根据开关合分闸电流图，得到开关柜的初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值，包括：Preferably, according to the switch closing and opening current diagram, the initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time of the switch cabinet are obtained, and the optimal time for issuing the opening command of the switch cabinet is determined. value and closing command issue time optimal value, including:

根据开关合分闸电流图，得到开关柜的初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，确定分闸开关响应时间和合闸开关响应时间；According to the switch closing and opening current diagram, the initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time of the switch cabinet are obtained, and the response time of the opening switch and the response time of the closing switch are determined;

根据初始分闸时间、初始合闸时间、预设分闸时间和预设合闸时间，确定开关柜的分闸时间偏差和合闸时间偏差；According to the initial opening time, initial closing time, preset opening time and preset closing time, determine the opening time deviation and closing time deviation of the switchgear;

根据分闸开关响应时间、分闸时间偏差、合闸开关响应时间和合闸时间偏差，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值。According to the response time of the opening switch, the deviation of the opening time, the response time of the closing switch and the deviation of the closing time, the optimal value of the opening command issuing time and the closing command issuing time of the switchgear are determined.

优选的，根据开关合分闸电流图，得到开关柜的初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，确定分闸开关响应时间和合闸开关响应时间，包括：Preferably, according to the switch closing and opening current diagram, the initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time of the switch cabinet are obtained, and the response time of the opening switch and the response time of the closing switch are determined. ,include:

根据开关合分闸电流图，获取多组初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间；According to the switch closing and opening current diagram, obtain multiple groups of initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time;

根据多组初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，通过求差，得到多组初始分闸开关响应时间和多组初始合闸开关响应时间；According to the sending time, initial opening time, initial closing command sending time and initial closing time of multiple groups of initial opening commands, by calculating the difference, the response time of multiple groups of initial opening switches and the response time of multiple groups of initial closing switches are obtained;

根据多组初始分闸开关响应时间和多组初始合闸开关响应时间，通过求平均操作，确定分闸开关响应时间和合闸开关响应时间。According to the response time of multiple groups of initial opening switches and the response time of multiple groups of initial closing switches, the response time of opening switches and the response time of closing switches are determined by averaging operation.

优选的，根据分闸开关响应时间、分闸时间偏差、合闸开关响应时间和合闸时间偏差，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值，包括：Preferably, according to the response time of the opening switch, the deviation of the opening time, the response time of the closing switch and the deviation of the closing time, determine the optimal value of the opening command issuing time and the optimal closing command issuing time of the switch cabinet, including:

根据分闸开关响应时间、分闸时间偏差、合闸开关响应时间和合闸时间偏差，得到开关柜的分闸时延和合闸时延；According to the response time of the opening switch, the deviation of the opening time, the response time of the closing switch and the deviation of the closing time, the opening delay and closing delay of the switch cabinet are obtained;

根据开关柜的分闸时间偏差和合闸时间偏差，确定分闸命令发出时间与预设分闸命令发出时间、合闸命令发出时间与预设合闸命令发出时间的关系；According to the opening time deviation and closing time deviation of the switchgear, determine the relationship between the time when the opening command is issued and the preset opening command, and the time between the closing command and the preset closing command;

根据分闸时延、合闸时延、分闸命令发出时间与预设分闸命令发出时间、合闸命令发出时间与预设合闸命令发出时间的关系，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值。According to the relationship between the opening time delay, closing time delay, opening command sending time and preset opening command sending time, closing command sending time and preset closing command sending time, determine the opening command sending time of the switchgear Optimum value and closing command issue time optimal value.

优选的，根据分闸开关响应时间、分闸时间偏差、合闸开关响应时间和合闸时间偏差，得到开关柜的分闸时延和合闸时延，包括：Preferably, according to the response time of the opening switch, the deviation of the opening time, the response time of the closing switch and the deviation of the closing time, the opening delay and closing delay of the switch cabinet are obtained, including:

根据分闸开关响应时间、分闸时间偏差、合闸开关响应时间和合闸时间偏差，通过求和，得到开关柜的分闸时延和合闸时延；According to the response time of the opening switch, the deviation of the opening time, the response time of the closing switch and the deviation of the closing time, the opening delay and closing delay of the switch cabinet are obtained by summing up;

优选的，分闸开关响应时间和合闸开关响应时间为非负值，分闸时间偏差和合闸时间偏差为实数值。Preferably, the response time of the opening switch and the response time of the closing switch are non-negative values, and the opening time deviation and the closing time deviation are real values.

优选的，根据开关柜的分闸时间偏差和合闸时间偏差，确定分闸命令发出时间与预设分闸命令发出时间、合闸命令发出时间与预设合闸命令发出时间的关系，包括：Preferably, according to the deviation of the opening time and the deviation of the closing time of the switch cabinet, determine the relationship between the time of issuing the opening command and the preset opening command, and the time of issuing the closing command and the preset closing command, including:

根据开关柜的分闸时间偏差和合闸时间偏差，确定开关柜的分闸时间与预设分闸时间、合闸时间与预设合闸时间的关系；According to the opening time deviation and closing time deviation of the switchgear, determine the relationship between the opening time of the switchgear and the preset opening time, and the closing time and the preset closing time;

根据分闸时间与预设分闸时间、合闸时间与预设合闸时间的关系，确定分闸命令发出时间与预设分闸命令发出时间、合闸命令发出时间与预设合闸命令发出时间的关系。According to the relationship between the opening time and the preset opening time, and the closing time and the preset closing time, determine the opening command issuing time and the preset opening command issuing time, and the closing command issuing time and the preset closing command issuing time time relationship.

优选的，根据分闸时延、合闸时延、分闸命令发出时间与预设分闸命令发出时间、合闸命令发出时间与预设合闸命令发出时间的关系，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值，包括：Preferably, the opening of the switch cabinet is determined according to the relationship between the opening time delay, the closing time delay, the time for issuing the opening command and the preset time for issuing the opening command, and the time for issuing the closing command and the time for issuing the preset closing command. The optimal value of the command issuing time and the optimal value of the closing command issuing time, including:

若分闸命令发出时间早于预设分闸命令发出时间，则确定开关柜的分闸命令发出时间最优值为在分闸命令发出时间的基础上推迟分闸时延的绝对值；若分闸命令发出时间晚于预设分闸命令发出时间，则确定开关柜的分闸命令发出时间最优值为在分闸命令发出时间的基础上提前分闸时延的绝对值；若分闸命令发出时间等于预设分闸命令发出时间，则确定开关柜的分闸命令发出时间最优值等于分闸命令发出时间；If the time of issuing the opening command is earlier than the preset time of issuing the opening command, the optimal value of the time for issuing the opening command of the switchgear is determined to be the absolute value of the delay time of delaying the opening on the basis of the time of issuing the opening command; If the time of issuing the gate command is later than the preset time of issuing the opening command, the optimal value of the time for issuing the opening command of the switchgear is determined as the absolute value of the advance opening delay on the basis of the issuing time of the opening command; If the sending time is equal to the preset opening command sending time, it is determined that the optimal value of the opening command sending time of the switch cabinet is equal to the opening command sending time;

若合闸命令发出时间早于预设合闸命令发出时间，则确定开关柜的合闸命令发出时间最优值为在合闸命令发出时间的基础上推迟合闸时延的绝对值；若合闸命令发出时间晚于预设合闸命令发出时间，则确定开关柜的合闸命令发出时间最优值为在合闸命令发出时间的基础上提前合闸时延的绝对值；若合闸命令发出时间等于预设合闸命令发出时间，则确定开关柜的合闸命令发出时间最优值等于合闸命令发出时间。If the closing command issuing time is earlier than the preset closing command issuing time, the optimal value of the closing command issuing time of the switchgear is determined to be the absolute value of the closing time delay based on the closing command issuing time; The time when the closing command is issued is later than the preset closing command issuing time, then the optimal value of the closing command issuing time of the switchgear is determined to be the absolute value of the closing delay in advance based on the closing command issuing time; if the closing command is issued If the sending time is equal to the preset closing command sending time, it is determined that the optimal value of the closing command sending time of the switch cabinet is equal to the closing command sending time.

为了解决上述问题，本发明还提供一种变频器软起动切换时间的控制装置，包括：In order to solve the above problems, the present invention also provides a control device for the soft start switching time of the frequency converter, including:

开关合分闸电流图获取模块，用于获取开关合分闸电流图；The switch closing and opening current map acquisition module is used to obtain the switch closing and opening current map;

命令发出时间计算模块，根据开关合分闸电流图，得到开关柜的初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值；The command issuing time calculation module obtains the initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time of the switchgear according to the switch closing and opening current diagram, and determines the opening command of the switchgear. Time optimal value and time optimal value for closing command;

命令发出时间调整模块，根据分闸命令发出时间最优值和合闸命令发出时间最优值，调整开关柜的分闸命令发出时间和合闸命令发出时间。The command sending time adjustment module adjusts the opening command sending time and closing command sending time of the switchgear according to the optimal value of the opening command sending time and the closing command sending time optimal value.

为了解决上述问题，本发明还提供一种电子设备，包括处理器以及存储器，存储器上存储有变频器软起动切换时间的控制程序，变频器软起动切换时间的控制程序被处理器执行时，实现上文所述的变频器软起动切换时间的控制方法。In order to solve the above problem, the present invention also provides an electronic device, including a processor and a memory, the memory stores a control program for the soft-start switching time of the inverter, and when the control program for the soft-start switching time of the inverter is executed by the processor, it realizes The control method of the inverter soft start switching time described above.

为了解决上述问题，本发明还提供一种计算机可读存储介质，该计算机可读存储介质存储有变频器软起动切换时间的控制程序指令，当变频器软起动切换时间的控制程序指令被计算机执行时，使计算机执行上文所述的变频器软起动切换时间的控制方法。In order to solve the above problems, the present invention also provides a computer-readable storage medium, the computer-readable storage medium stores the control program instructions of the soft-start switching time of the inverter, and the control program instructions of the soft-start switching time of the inverter are executed by the computer. , make the computer execute the control method of the inverter soft start switching time described above.

采用上述实施例的有益效果是：本发明提供一种变频器软起动切换时间的控制方法、装置及电子设备，该方法包括：获取开关合分闸电流图；根据开关合分闸电流图，得到开关柜的初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值；根据分闸命令发出时间最优值和合闸命令发出时间最优值，调整开关柜的分闸命令发出时间和合闸命令发出时间。本发明通过分析开关合分闸电流图中的分/合闸命令发出时间与分/合闸时间，确定分/合闸命令发出时间最优值，然后调整分/合闸命令的发出时间，减小甚至消除了开关柜的实际起动时间与预设起动时间的偏差，避免了开关柜在切换瞬时电流过大的问题。The beneficial effects of adopting the above embodiments are: the present invention provides a control method, device and electronic equipment for the soft-start switching time of a frequency converter. The method includes: obtaining a current diagram of the switch closing and opening; according to the current diagram of the switch closing and opening, obtaining The initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time of the switchgear are determined to determine the optimal value of the opening command issuing time and the optimal closing command issuing time of the switchgear; The optimal value of the time for issuing the closing command and the optimal value of the time for issuing the closing command, and the time for issuing the opening and closing commands of the switchgear is adjusted. The invention determines the optimal value of the opening/closing command sending time by analyzing the opening/closing command sending time and opening/closing time in the switch closing and opening current diagram, and then adjusts the sending time of the opening/closing command to reduce It even eliminates the deviation between the actual start-up time of the switchgear and the preset start-up time, and avoids the problem of excessive instantaneous current in the switchgear.

附图说明Description of drawings

图1为本发明提供的变频器软起动切换时间的控制方法一实施例的流程示意图；FIG. 1 is a schematic flowchart of an embodiment of a method for controlling the soft-start switching time of a frequency converter provided by the present invention;

图2为本发明提供的确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值的一实施例的流程示意图；FIG. 2 is a schematic flowchart of an embodiment of determining the optimal value of the opening command issuing time and the optimal closing command issuing time of the switchgear provided by the present invention;

图3为本发明提供的确定开关柜的分闸开关响应时间和合闸开关响应时间的一实施例的流程示意图；3 is a schematic flowchart of an embodiment of determining the response time of the opening switch and the response time of the closing switch of the switch cabinet provided by the present invention;

图4为本发明提供的确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值的另一实施例的流程示意图；FIG. 4 is a schematic flowchart of another embodiment of determining the optimal value of the opening command issuing time and the optimal closing command issuing time of the switchgear provided by the present invention;

图5为本发明提供的变频器软起动切换时间的控制装置的结构示意图；5 is a schematic structural diagram of a control device for a soft-start switching time of a frequency converter provided by the present invention;

图6为本发明提供的电子设备一实施例的结构框图。FIG. 6 is a structural block diagram of an embodiment of an electronic device provided by the present invention.

具体实施方式Detailed ways

下面结合附图来具体描述本发明的优选实施例，其中，附图构成本申请一部分，并与本发明的实施例一起用于阐释本发明的原理，并非用于限定本发明的范围。The preferred embodiments of the present invention are specifically described below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present application, and together with the embodiments of the present invention, are used to explain the principles of the present invention, but are not used to limit the scope of the present invention.

在陈述实施例之前，先对变频器与开关柜进行阐述：Before describing the embodiment, the frequency converter and switchgear will be explained first:

变频器(Variable-frequency Drive，VFD)是应用变频技术与微电子技术，通过改变开关柜工作电源频率方式来控制交流电动机的电力控制设备。Variable-frequency Drive (VFD) is a power control device that uses frequency conversion technology and microelectronics technology to control the AC motor by changing the frequency of the working power supply of the switch cabinet.

开关柜是一种电能转换或传递的一种电磁装置。A switchgear is an electromagnetic device that converts or transmits electrical energy.

开关柜在转换或传递电能的过程中，切换瞬时电流一般比较大，为了保护开关柜绕组，减少切换瞬时电流对电网的冲击，通常利用变频器对开关柜进行软起动控制，使得开关柜能够平滑地转换或传递电能。In the process of converting or transmitting electrical energy in the switchgear, the switching instantaneous current is generally relatively large. In order to protect the switchgear windings and reduce the impact of the switching instantaneous current on the power grid, the inverter is usually used to perform soft start control on the switchgear, so that the switchgear can be smoothly started. Convert or transfer electrical energy.

目前，变频器在控制开关柜进行软起动的过程中，存在变频器下达指令时间与开关柜的实际起动时间存在偏差，从而导致切换瞬时电流依旧过大的技术问题。At present, in the process of soft-starting of the switchgear by the inverter, there is a deviation between the time when the inverter sends the command and the actual start-up time of the switchgear, which leads to the technical problem that the instantaneous switching current is still too large.

为了解决上述问题，本发明提供了一种变频器软起动切换时间的控制方法，以下分别进行详细说明。In order to solve the above problems, the present invention provides a method for controlling the soft-start switching time of an inverter, which will be described in detail below.

如图1所示，图1为本发明提供的变频器软起动切换时间的控制方法一实施例的流程示意图，包括：As shown in FIG. 1, FIG. 1 is a schematic flowchart of an embodiment of a method for controlling the soft-start switching time of a frequency converter provided by the present invention, including:

步骤S11：获取开关合分闸电流图。Step S11: Obtain a current diagram of the switch on and off.

步骤S12：根据开关合分闸电流图，得到开关柜的初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值。Step S12: According to the switch closing and opening current diagram, obtain the initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time of the switch cabinet, and determine the optimal opening command issuing time of the switch cabinet value and the optimal value of the time when the closing command is issued.

步骤S13：根据分闸命令发出时间最优值和合闸命令发出时间最优值，调整开关柜的分闸命令发出时间和合闸命令发出时间。Step S13 : according to the optimal value of the issuing time of the opening command and the optimal value of the issuing time of the closing command, adjust the issuing time of the opening command and the time of issuing the closing command of the switch cabinet.

本实施例中，首先，获取开关合分闸电流图，其中，开关合分闸电流图能够清楚地显示合闸开关、分闸开关在时间轴上的电流突变时刻；其次，根据开关合分闸电流图，得到开关柜的初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值；最后，根据分闸命令发出时间最优值和合闸命令发出时间最优值，调整开关柜的分闸命令发出时间和合闸命令发出时间，控制开关柜在变频器软起动控制下的分/合闸切换时间，从而实现开关柜的分闸时间和合闸时间与预设时间保持一致。In this embodiment, first, obtain a current diagram of the switch closing and opening, wherein the current diagram of the switch closing and opening can clearly display the current sudden change moment of the closing switch and the opening switch on the time axis; secondly, according to the closing and opening of the switch From the current diagram, obtain the initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time of the switchgear, and determine the optimal value of the opening command issuing time and the optimal closing command issuing time of the switchgear Finally, according to the optimal value of the opening command issuing time and the closing command issuing time optimal value, adjust the opening command issuing time and closing command issuing time of the switchgear, and control the opening/closing of the switchgear under the soft start control of the inverter. Closing switching time, so that the opening time and closing time of the switch cabinet are consistent with the preset time.

本实施例中，通过分析开关合分闸电流图中的分/合闸命令发出时间与分/合闸时间，确定分/合闸命令发出时间最优值，然后调整分/合闸命令的发出时间，减小甚至消除了开关柜的实际起动时间与预设起动时间的偏差，避免了开关柜在切换瞬时电流过大的问题。In this embodiment, by analyzing the opening/closing command sending time and the opening/closing time in the switch closing and opening current diagram, the optimal value of the opening/closing command sending time is determined, and then the sending of the opening/closing command is adjusted. time, reduce or even eliminate the deviation between the actual start-up time of the switchgear and the preset start-up time, and avoid the problem of excessive instantaneous current in the switchgear.

作为优选的实施例，在步骤S12中，为了确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值，如图2所示，图2为本发明提供的确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值的一实施例的流程示意图，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值包括：As a preferred embodiment, in step S12, in order to determine the optimal value of the opening command issuing time and the optimal closing command issuing time value of the switch cabinet, as shown in FIG. 2, FIG. A schematic flowchart of an embodiment of the optimal time for issuing the opening command and the optimal time for issuing the closing command, and determining the optimal time for issuing the opening command and the optimal time for issuing the closing command of the switchgear includes:

步骤S121：根据开关合分闸电流图，得到开关柜的初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，确定分闸开关响应时间和合闸开关响应时间。Step S121: Obtain the initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time of the switch cabinet according to the switch closing and opening current diagram, and determine the response time of the opening switch and the response time of the closing switch .

步骤S122：根据初始分闸时间、初始合闸时间、预设分闸时间和预设合闸时间，确定开关柜的分闸时间偏差和合闸时间偏差。Step S122: Determine the opening time deviation and the closing time deviation of the switch cabinet according to the initial opening time, the initial closing time, the preset opening time and the preset closing time.

步骤S123：根据分闸开关响应时间、分闸时间偏差、合闸开关响应时间和合闸时间偏差，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值。Step S123: According to the response time of the opening switch, the deviation of the opening time, the response time of the closing switch and the deviation of the closing time, determine the optimal value of the opening command issuing time and the optimal closing command issuing time of the switch cabinet.

本实施例中，首先，通过分析开关合分闸电流图，确定分闸开关响应时间和合闸开关响应时间；然后，通过对比初始分/合闸时间，即，实际测量的分/合闸时间与预设分/合闸时间的关系，确定开关柜的分/合闸时间偏差；最后，根据分/合闸开关响应时间、开关柜的分/合闸时间偏差，基于开关柜的初始分/合闸命令发出时间，确定开关柜的分/合闸命令发出时间最优值。In this embodiment, first, the response time of the opening switch and the response time of the closing switch are determined by analyzing the switch closing and opening current diagram; then, by comparing the initial opening/closing time, that is, the actual measured opening/closing time and Preset the relationship of opening/closing time to determine the opening/closing time deviation of the switchgear; finally, according to the opening/closing switch response time and the opening/closing time deviation of the switchgear, based on the initial opening/closing time of the switchgear It determines the optimal value of the opening/closing command issuing time of the switchgear.

进一步地，为了避免测量误差，提高步骤S121中的分闸开关响应时间和合闸开关响应时间的精确度，如图3所示，图3为本发明提供的确定开关柜的分闸开关响应时间和合闸开关响应时间的一实施例的流程示意图，确定开关柜的分闸开关响应时间和合闸开关响应时间包括：Further, in order to avoid measurement errors, improve the accuracy of the response time of the opening switch and the response time of the closing switch in step S121, as shown in FIG. A schematic flowchart of an embodiment of the gate switch response time, determining the opening switch response time and closing switch response time of the switch cabinet includes:

步骤S1211：根据开关合分闸电流图，获取多组初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间。Step S1211 : According to the switch closing and opening current map, obtain multiple groups of initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time.

步骤S1212：根据多组初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，通过求差，得到多组初始分闸开关响应时间和多组初始合闸开关响应时间。Step S1212: According to the issuing time, initial opening time, initial closing command issuing time and initial closing time of multiple groups of initial opening commands, by calculating the difference, the response time of multiple groups of initial opening switches and the multiple groups of initial closing switches are obtained. Response time.

步骤S1213：根据多组初始分闸开关响应时间和多组初始合闸开关响应时间，通过求平均操作，确定分闸开关响应时间和合闸开关响应时间。Step S1213: Determine the response time of the opening switch and the response time of the closing switch by averaging operation according to the response times of the initial opening switches and the response times of the initial closing switches.

可以理解的是，本实施例中，开关柜多次切换对应的开关合分闸电流图中包括多个初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间的时刻点，通过对应求差计算，便能够得到对应的多组初始分闸开关响应时间和多组初始合闸开关响应时间。由于是同一变频器控制的同一开关柜在不同时刻对分/合闸命令的响应时间，也就是说，每个初始分闸开关响应时间和初始合闸开关响应时间都代表了开关柜的分闸命令延时和合闸命令延时；为了提高分/合闸命令延时的可靠性，对多组初始分/合闸开关响应时间进行求平均操作，得到分/合闸开关响应时间。It can be understood that, in this embodiment, the switch closing and opening current diagram corresponding to the multiple switching of the switch cabinet includes multiple initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time. At the time point, through the corresponding difference calculation, the corresponding multi-group initial opening switch response time and multi-group initial closing switch response time can be obtained. Since it is the response time of the same switchgear controlled by the same inverter to the opening/closing command at different times, that is to say, each initial opening switch response time and initial closing switch response time represent the opening of the switchgear Command delay and closing command delay; in order to improve the reliability of the opening/closing command delay, the response time of the opening/closing switch is obtained by averaging the response times of multiple groups of initial opening/closing switches.

通过上述方式，对多组初始分/合闸开关响应时间进行求平均操作，避免了通过一次测试就确定分/合闸开关响应时间的偶然性，并且通过求平均操作，能够提高最终获取到的分/合闸开关响应时间的可靠度，从而能够有效保证最终结果的可靠性。Through the above method, the average operation is performed on the response time of multiple groups of initial opening/closing switches, which avoids the chance of determining the response time of the opening/closing switch through one test, and through the averaging operation, the final obtained score can be improved. / The reliability of the closing switch response time, so as to effectively ensure the reliability of the final result.

进一步地，为了确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值，以实现精准控制开关柜的分闸时间与合闸时间，避免出现在切换瞬时电流依旧过大的问题。如图4所示，图4为本发明提供的确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值的另一实施例的流程示意图，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值包括：Further, in order to determine the optimal value of the opening command issuing time and the optimal closing command issuing time of the switchgear, so as to achieve precise control of the opening time and closing time of the switchgear, and avoid the occurrence of excessive instantaneous current during switching. question. As shown in FIG. 4, FIG. 4 is a schematic flowchart of another embodiment of determining the optimal value of the opening command issuing time of the switchgear and the optimal value of the closing command issuing time provided by the present invention, and determining the opening command of the switchgear is issued. The optimal value of time and the optimal value of time to issue a closing command include:

步骤S1231：根据分闸开关响应时间、分闸时间偏差、合闸开关响应时间和合闸时间偏差，得到开关柜的分闸时延和合闸时延。Step S1231: Obtain the opening delay and closing delay of the switch cabinet according to the response time of the opening switch, the deviation of the opening time, the response time of the closing switch and the deviation of the closing time.

步骤S1232：根据开关柜的分闸时间偏差和合闸时间偏差，确定分闸命令发出时间与预设分闸命令发出时间、合闸命令发出时间与预设合闸命令发出时间的关系。Step S1232: According to the deviation of the opening time and the deviation of the closing time of the switch cabinet, determine the relationship between the issuing time of the opening command and the preset opening command issuing time, and the closing command issuing time and the preset closing command issuing time.

步骤S1233：根据分闸时延、合闸时延、分闸命令发出时间与预设分闸命令发出时间、合闸命令发出时间与预设合闸命令发出时间的关系，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值。Step S1233: Determine the opening of the switchgear according to the relationship between the opening delay, the closing delay, the opening command issuing time and the preset opening command issuing time, and the closing command issuing time and the preset closing command issuing time The time optimal value for command issuance and the time optimal value for closing command issuance.

本实施例中，根据开关柜的分/合闸开关响应时间、分/合闸时间偏差，得到分/合闸时延；其中，分/合闸时延代表了变频器发出分/合闸指令到开关柜完成分/合闸之间的时间差；然后，根据开关柜的分闸时间偏差和合闸时间偏差，确定开关柜的分/合闸时间与预设的分/合闸时间的关系，再反推分/合闸命令发出时间与预设分/合闸命令发出时间的关系；最后，根据开关柜的分/合闸时延、分/合闸命令发出时间与预设分/合闸命令发出时间的关系，确定开关柜的分/合闸命令发出时间最优值。In this embodiment, the opening/closing time delay is obtained according to the opening/closing switch response time and the opening/closing time deviation of the switch cabinet; wherein, the opening/closing time delay represents the opening/closing command issued by the inverter The time difference until the switchgear completes opening/closing; then, according to the opening time deviation and closing time deviation of the switchgear, determine the relationship between the opening/closing time of the switchgear and the preset opening/closing time, and then Reverse the relationship between the issuing time of the opening/closing command and the preset opening/closing command; finally, according to the opening/closing time delay of the switchgear, the opening/closing command issuing time and the preset opening/closing command The relationship between the issuing time determines the optimal value of the issuing time of the opening/closing command of the switchgear.

通过上述方式，获取到开关柜的分/合闸时延后，反推出开关柜的分/合闸命令发出时间其与预设的分/合闸命令发出时间的关系，最后确定开关柜的分/合闸命令发出时间最优值。根据开关柜的分/合闸情况，反推分/合闸命令发出情况，减少了数据运算，结果直观，能够保证获取到的分/合闸命令发出时间最优值的可靠度，有利于精确控制开关柜的分/合闸时间。Through the above method, after the opening/closing time delay of the switchgear is obtained, the relationship between the opening/closing command sending time of the switchgear and the preset opening/closing command sending time is deduced, and finally the opening/closing command of the switchgear is determined. /Closing command issued time optimal value. According to the opening/closing situation of the switchgear, the situation of issuing the opening/closing command is reversed, which reduces the data operation, and the result is intuitive, which can ensure the reliability of the obtained optimal value of the opening/closing command issuing time, which is conducive to accurate Control the opening/closing time of the switchgear.

在另一实施例中，开关柜的预设分闸时间和预设合闸时间不相同，二者之间存在封脉冲。在确定合闸命令发出时间后，根据获取到的开关柜的分/合闸时延，反推出开关柜的分闸命令发出时间，从而实现开关柜的分闸时间与其合闸时间之间存在封脉冲。特别地，在特定的情况下，封脉冲能够有效地避免开关柜状态突变引起的问题。In another embodiment, the preset opening time and the preset closing time of the switch cabinet are different, and there is a blocking pulse between the two. After determining the closing command issuing time, according to the obtained opening/closing time delay of the switch cabinet, the opening command issuing time of the switch cabinet is reversed, so as to realize that there is a seal between the opening time and the closing time of the switch cabinet. pulse. In particular, under certain circumstances, the blocking pulse can effectively avoid the problems caused by the sudden change of the switchgear state.

在一具体实施例中，若分闸时延小于零，则判断分闸时间早于预设分闸时间；若分闸时延大于零，则判断分闸时间晚于预设分闸时间；若分闸时延等于零，则判断分闸时间等于预设分闸时间；In a specific embodiment, if the opening delay is less than zero, it is determined that the opening time is earlier than the preset opening time; if the opening delay is greater than zero, it is determined that the opening time is later than the preset opening time; if When the opening delay is equal to zero, it is judged that the opening time is equal to the preset opening time;

若合闸时延小于零，则判断合闸时间早于预设合闸时间；若合闸时延大于零，则判断合闸时间晚于预设合闸时间；若合闸时延等于零，则判断合闸时间等于预设合闸时间。If the closing delay is less than zero, it is judged that the closing time is earlier than the preset closing time; if the closing delay is greater than zero, it is judged that the closing time is later than the preset closing time; if the closing delay is equal to zero, then It is judged that the closing time is equal to the preset closing time.

也就是说，根据分/合闸时延的正负，判断开关柜分/合闸的时机是早于预设值还是晚于预设值。That is to say, according to the positive and negative of the opening/closing time delay, it is judged whether the opening/closing time of the switchgear is earlier than the preset value or later than the preset value.

在一具体实施例中，若初始分闸时间早于预设分闸时间，则推迟变频器软起动的预设分闸命令发出时间；若初始分闸时间晚于预设分闸时间，则提前变频器软起动的预设分闸命令发出时间；若初始分闸时间等于预设分闸时间，则保持变频器软起动的预设分闸命令发出时间；In a specific embodiment, if the initial opening time is earlier than the preset opening time, the preset opening command issuing time of the inverter soft start is delayed; if the initial opening time is later than the preset opening time, the preset opening time is delayed. The preset opening command sending time of the inverter soft start; if the initial opening time is equal to the preset opening time, the preset opening command sending time of the inverter soft start is maintained;

若初始合闸时间早于预设合闸时间，则推迟变频器软起动的预设合闸命令发出时间；若初始合闸时间晚于预设合闸时间，则提前变频器软起动的预设合闸命令发出时间；若初始合闸时间等于预设合闸时间，则保持变频器软起动的预设合闸命令发出时间。If the initial closing time is earlier than the preset closing time, the preset closing command issuing time of the inverter soft start will be delayed; if the initial closing time is later than the preset closing time, the preset closing time of the inverter soft start will be advanced. The closing command sending time; if the initial closing time is equal to the preset closing time, the preset closing command sending time of the inverter soft start will be maintained.

也就是说，根据开关柜分/合闸的时机是早于预设还是晚于预设值，对应地推迟或提前变频器的分/合闸命令发出时间，从而实现开关柜分/合闸的时间等于预设值。That is to say, according to whether the opening/closing time of the switchgear is earlier than or later than the preset value, the opening/closing command of the inverter is correspondingly delayed or advanced, so as to realize the opening/closing of the switchgear. The time is equal to the preset value.

为了解决上述问题，本发明还提供了一种变频器软起动切换时间的控制装置，如图5所示，图5为本发明提供的变频器软起动切换时间的控制装置的结构示意图，变频器软起动切换时间的控制装置500包括：In order to solve the above problems, the present invention also provides a control device for the switching time of the soft start of the inverter, as shown in FIG. Thecontrol device 500 for soft-start switching time includes:

开关合分闸电流图获取模块501，用于获取开关合分闸电流图；The switch closing and opening currentmap acquisition module 501 is used to obtain the switch closing and opening current map;

命令发出时间计算模块502，用于根据开关合分闸电流图，得到开关柜的初始分闸命令发出时间、初始分闸时间、初始合闸命令发出时间和初始合闸时间，确定开关柜的分闸命令发出时间最优值和合闸命令发出时间最优值；The command issuingtime calculation module 502 is used to obtain the initial opening command issuing time, initial opening time, initial closing command issuing time and initial closing time of the switch cabinet according to the switch closing and opening current diagram, and determine the opening and closing time of the switch cabinet. The optimal value of the time when the switch command is issued and the optimal value of the time when the closing command is issued;

命令发出时间调整模块503，用于根据分闸命令发出时间最优值和合闸命令发出时间最优值，调整开关柜的分闸命令发出时间和合闸命令发出时间。The command sendingtime adjustment module 503 is used to adjust the opening command sending time and the closing command sending time of the switchgear according to the optimal value of the opening command sending time and the closing command sending time optimal value.

在一具体实施例中，开关合分闸电流图获取模块501包括示波器，通过示波器获取开关合分闸电流图。In a specific embodiment, the switch closing and opening currentdiagram acquisition module 501 includes an oscilloscope, and the switch closing and opening current diagram is acquired through the oscilloscope.

本发明还相应提供了一种电子设备，如图6所示，图6为本发明提供的电子设备一实施例的结构框图。电子设备600可以是移动终端、桌上型计算机、笔记本、掌上电脑及服务器等计算设备。电子设备600包括处理器601以及存储器602，其中，存储器602上存储有变频器软起动切换时间的控制程序603。The present invention also provides an electronic device correspondingly. As shown in FIG. 6 , FIG. 6 is a structural block diagram of an embodiment of the electronic device provided by the present invention. Theelectronic device 600 may be a computing device such as a mobile terminal, a desktop computer, a notebook, a palmtop computer, and a server. Theelectronic device 600 includes aprocessor 601 and amemory 602, wherein thememory 602 stores acontrol program 603 for the soft-start switching time of the inverter.

存储器602在一些实施例中可以是计算机设备的内部存储单元，例如计算机设备的硬盘或内存。存储器602在另一些实施例中也可以是计算机设备的外部存储设备，例如计算机设备上配备的插接式硬盘，智能存储卡(Smart Media Card，SMC)，安全数字(SecureDigital，SD)卡，闪存卡(Flash Card)等。进一步地，存储器602还可以既包括计算机设备的内部存储单元也包括外部存储设备。存储器602用于存储安装于计算机设备的应用软件及各类数据，例如安装计算机设备的程序代码等。存储器602还可以用于暂时地存储已经输出或者将要输出的数据。在一实施例中，变频器软起动切换时间的控制程序603可被处理器601所执行，从而实现本发明各实施例的变频器软起动切换时间的控制方法。Thememory 602 may in some embodiments be an internal storage unit of a computer device, such as a hard disk or memory of the computer device. In other embodiments, thememory 602 may also be an external storage device of the computer device, such as a plug-in hard disk equipped on the computer device, a Smart Media Card (SMC), a Secure Digital (SD) card, and a flash memory. Card (Flash Card) and so on. Further, thememory 602 may also include both an internal storage unit of the computer device and an external storage device. Thememory 602 is used to store application software and various types of data installed in the computer device, such as program codes installed in the computer device. Thememory 602 may also be used to temporarily store data that has been or will be output. In an embodiment, thecontrol program 603 of the inverter soft-start switching time can be executed by theprocessor 601, so as to realize the control method of the inverter soft-start switching time according to the embodiments of the present invention.

处理器601在一些实施例中可以是一中央处理器(Central Processing Unit，CPU)，微处理器或其他数据处理芯片，用于运行存储器602中存储的程序代码或处理数据，例如执行变频器软起动切换时间的控制程序等。In some embodiments, theprocessor 601 may be a central processing unit (Central Processing Unit, CPU), a microprocessor or other data processing chips, and is used for running the program codes or processing data stored in thememory 602, for example, executing the inverter software. Start the control program of the switching time, etc.

本实施例还提供了一种计算机可读存储介质，其上存储有变频器软起动切换时间的控制程序，计算机该程序被处理器执行时，实现如上述任一技术方案所述的变频器软起动切换时间的控制方法。This embodiment also provides a computer-readable storage medium, which stores a control program for the soft-start switching time of the inverter. When the program is executed by the processor, the computer realizes the inverter soft-start according to any of the above technical solutions. The control method of the start switching time.

本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于一非易失性计算机可读取存储介质中，该计算机程序在执行时，可包括如上述各方法的实施例的流程。本申请所提供的各实施例中所使用的对存储器、存储、数据库或其它介质的任何引用，均可包括非易失性和/或易失性存储器。非易失性存储器可包括只读存储器(ROM)、可编程ROM(PROM)、电可编程ROM(EPROM)、电可擦除可编程ROM(EEPROM)或闪存。易失性存储器可包括随机存取存储器(RAM)或者外部高速缓冲存储器。作为说明而非局限，RAM以多种形式可得，诸如静态RAM(SRAM)、动态RAM(DRAM)、同步DRAM(SDRAM)、双数据率SDRAM(DDRSDRAM)、增强型SDRAM(ESDRAM)、同步链路(Synchlink)DRAM(SLDRAM)、存储器总线(Rambus)直接RAM(RDRAM)、直接存储器总线动态RAM(DRDRAM)、以及存储器总线动态RAM(RDRAM)等。Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage In the medium, when the computer program is executed, it may include the processes of the above-mentioned method embodiments. Any reference to a memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. Nonvolatile memory may include read only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain Road (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Substitutions should be covered within the protection scope of the present invention.