CN111641260A - Transformer substation process layer on-site module device and control method thereof - Google Patents
Transformer substation process layer on-site module device and control method thereofDownload PDFInfo
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- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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Abstract
Description
Translated fromChinese技术领域technical field
本发明涉及电力系统自动化技术领域，特别涉及一种变电站过程层就地模块装置及其控制方法。The invention relates to the technical field of power system automation, in particular to a substation process layer local module device and a control method thereof.
背景技术Background technique
智能变电站在常规变电站架构上增加了合并单元、智能终端等过程层设备，用于实现一次设备的交流量采集及开关量处理。增加了过程层网络，用于过程层与间隔层之间的信息汇集与通信。合并单元和智能终端在智能站运行过程中，暴露出了一些问题：过程层增加了大量合并单元、智能终端、交换机等二次设备，给日常运维与故障处理带来了较大压力；合并单元、智能终端、交换机等设备存在硬件故障率高、软件缺陷多等质量问题，极易造成保护不正确动作，增加了用户的负担；合并单元汇集多路采样值，装置故障时影响范围大，尤其是母线合并单元故障会导致大量间隔层设备工作异常；合并单元与智能终端布置于户外智能控制柜中，高温、严寒、雨季等气候条件下柜内运行环境恶劣；户外柜内部空间狭小，布线密集，运维检修不便。The smart substation adds process layer equipment such as merging unit and intelligent terminal to the conventional substation structure, which is used to realize the AC quantity collection and switch quantity processing of the primary equipment. A process layer network is added for information collection and communication between the process layer and the bay layer. During the operation of the merging unit and intelligent terminal, some problems were exposed: a large number of secondary equipment such as merging units, intelligent terminals, and switches were added to the process layer, which brought great pressure on daily operation and maintenance and troubleshooting; Units, intelligent terminals, switches and other equipment have quality problems such as high hardware failure rate and many software defects, which can easily lead to incorrect protection actions and increase the burden on users. In particular, the failure of the bus merging unit will lead to abnormal operation of a large number of equipment on the bay layer; the merging unit and the intelligent terminal are arranged in the outdoor intelligent control cabinet, and the operating environment in the cabinet is harsh under climatic conditions such as high temperature, severe cold, and rainy season; the interior space of the outdoor cabinet is small, and the wiring Intensive, inconvenient operation and maintenance.
发明内容SUMMARY OF THE INVENTION
本发明实施例的目的是提供一种变电站过程层就地模块装置及其控制方法，通过简化智能变电站设备组成和网络结构，采用与一次设备同体设计且紧密耦合的接地模块，替代了现有的智能终端和合并单元，并依据使用环境对装置进行调整，实现了交流、一次设备状态和控制信息就地数字化传输，降低了成本，提高了一次设备及变电站的智能化和集约化。The purpose of the embodiments of the present invention is to provide a substation process layer on-site module device and a control method thereof. By simplifying the composition and network structure of the intelligent substation equipment, a grounding module designed in the same body with the primary equipment and tightly coupled is adopted to replace the existing grounding module. Intelligent terminals and merging units, and adjust the devices according to the use environment, realize the local digital transmission of communication, primary equipment status and control information, reduce costs, and improve the intelligence and intensification of primary equipment and substations.
为解决上述技术问题，本发明实施例的第一方面提供了一种变电站过程层就地模块装置，包括：背板、CPU插件、人机插件、I/O插件、常规互感器插件和电子式互感器插件；In order to solve the above technical problems, the first aspect of the embodiments of the present invention provides a substation process layer local module device, including: a backplane, a CPU plug-in, a man-machine plug-in, an I/O plug-in, a conventional transformer plug-in, and an electronic type transformer plug-in;
所述背板通过CAN分别与CPU插件、人机插件、I/O插件、常规互感器插件和电子式互感器插件连接；The backplane is respectively connected with CPU plug-in, man-machine plug-in, I/O plug-in, conventional transformer plug-in and electronic transformer plug-in through CAN;
所述CPU插件包括千兆网口、百兆网口、SV级联接口、对时接口和/或AD转换回路采集接口；The CPU plug-in includes a Gigabit Ethernet port, a Fast Ethernet port, an SV cascade interface, a time synchronization interface and/or an AD conversion loop acquisition interface;
所述人机插件与所述CPU插件进行数据交互，并控制所述常规互感器插件和所述电子式互感器插件择一接入；The man-machine plug-in and the CPU plug-in carry out data interaction, and control the conventional transformer plug-in and the electronic transformer plug-in to selectively access;
所述常规互感器插件对所述变电站的电压互感器和电流互感器传输的信号进行转换，并传输至所述CPU插件的AD转换回路；The conventional transformer plug-in converts the signals transmitted by the voltage transformer and the current transformer of the substation, and transmits it to the AD conversion circuit of the CPU plug-in;
所述电子式互感器插件接收报文数据，并传输至所述CPU插件进行数据处理；The electronic transformer plug-in receives message data and transmits it to the CPU plug-in for data processing;
所述I/O插件通过所述CAN与所述CPU插件进行数据交互。The I/O plug-in performs data interaction with the CPU plug-in through the CAN.
进一步地，所述常规互感器插件还包括第一电源单元；Further, the conventional transformer plug-in also includes a first power supply unit;
所述第一电源单元用于向所述就地模块装置供电。The first power supply unit is used to supply power to the on-site modular device.
进一步地，所述电子式互感器插件还包括第二电源单元；Further, the electronic transformer plug-in also includes a second power supply unit;
所述第二电源单元用于向所述就地模块装置供电。The second power supply unit is used to supply power to the on-site modular device.
进一步地，与所述常规互感器插件连接的所述AD转换回路大于或等于16路。Further, the AD conversion circuit connected to the conventional transformer plug-in is greater than or equal to 16 circuits.
进一步地，所述对时的方式包括：1588对时、B码对时或PPS对时；Further, the time synchronization method includes: 1588 time synchronization, B code time synchronization or PPS time synchronization;
所述1588对时通过所述千兆网口对时；The 1588 time synchronization is performed through the Gigabit Ethernet port;
所述B码对时通过B码对时接口对时；The B code time synchronization is performed through the B code time synchronization interface;
所述PPS对时通过PPS接口对时；The PPS time synchronization is performed through the PPS interface;
所述人机插件可切换所述对时类型。The man-machine plug-in can switch the time synchronization type.
进一步地，所述SV级联包括：2路SV级联、1路SV级联和无级联模式；Further, the SV cascade includes: 2-way SV cascade, 1-way SV cascade and no cascade mode;
所述人机插件可以实现2路SV级联、1路SV级联和无级联模式的切换。The man-machine plug-in can realize the switching of 2-way SV cascade, 1-way SV cascade and no cascade mode.
进一步地，所述I/O插件包括开入接口、开出接口、串口和/或直流接口；Further, the I/O plug-in includes an input interface, an output interface, a serial port and/or a DC interface;
所述开入接口、开出接口、串口和/或直流接口通过所述CAN与所述CPU插件进行数据交换。The open-in interface, open-out interface, serial port and/or DC interface perform data exchange with the CPU plug-in through the CAN.
进一步地，所述千兆网口可以用于环网或组网的GOOSE接收和发送，还可用于SV的发送和1588对时接入。Further, the Gigabit Ethernet port can be used for GOOSE reception and transmission of ring network or networking, and can also be used for SV transmission and 1588 time synchronization access.
本发明实施例的第二方面提供了一种变电站过程层就地模块装置控制方法，包括如下步骤：A second aspect of the embodiments of the present invention provides a method for controlling an on-site module device at a substation process layer, including the following steps:
获取就地模块装置的硬件信息；Obtain the hardware information of the local module device;
依据所述硬件信息，确定所述就地模块装置的功能配置；According to the hardware information, determine the functional configuration of the on-site modular device;
依据所述功能配置，控制所述就地模块装置启动运行。According to the functional configuration, the on-site modular device is controlled to start running.
进一步地，所述硬件信息包括：网络类型、互感器类型、对时类型、级联类型和/或CAN网络配置选择；Further, the hardware information includes: network type, transformer type, time synchronization type, cascade type and/or CAN network configuration selection;
所述网络类型为千兆组网或千兆环网；The network type is a gigabit network or a gigabit ring network;
所述判断互感器类型为常规互感器或电子式互感器；The type of the judgment transformer is a conventional transformer or an electronic transformer;
所述判断对时类型为B码对时、PPS对时或1588对时；The judged time synchronization type is B code time synchronization, PPS time synchronization or 1588 time synchronization;
所述判断级联类型为2路SV级联、1路SV级联或无级联模式；The judgment cascade type is 2-way SV cascade, 1-way SV cascade or no cascade mode;
所述CAN网络配置选择为开入、开出或直流。The CAN network configuration is selected as switch-in, switch-out or direct current.
本发明实施例的上述技术方案具有如下有益的技术效果：The above-mentioned technical solutions of the embodiments of the present invention have the following beneficial technical effects:
通过简化智能变电站设备组成和网络结构，采用与一次设备同体设计且紧密耦合的接地模块，替代了现有的智能终端和合并单元，并依据使用环境对装置进行调整，实现了交流模拟量、一次设备状态和控制信息就地数字化传输，降低了成本，提高了一次设备及变电站的智能化和集约化。By simplifying the equipment composition and network structure of the intelligent substation, adopting the grounding module which is designed in the same body with the primary equipment and tightly coupled to replace the existing intelligent terminal and merging unit, and adjusts the equipment according to the use environment, realizing the AC analog quantity, primary The local digital transmission of equipment status and control information reduces costs and improves the intelligence and intensification of primary equipment and substations.
附图说明Description of drawings
图1是本发明实施例提供的变电站过程层就地模块装置架构图；1 is an architecture diagram of a substation process layer on-site module device provided by an embodiment of the present invention;
图2是本发明实施例提供的变电站过程层就地模块装置控制方法流程图。FIG. 2 is a flowchart of a method for controlling an on-site module device at a substation process layer provided by an embodiment of the present invention.
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚明了，下面结合具体实施方式并参照附图，对本发明进一步详细说明。应该理解，这些描述只是示例性的，而并非要限制本发明的范围。此外，在以下说明中，省略了对公知结构和技术的描述，以避免不必要地混淆本发明的概念。In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the specific embodiments and the accompanying drawings. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present invention.
图1是本发明实施例提供的变电站过程层就地模块装置架构图。FIG. 1 is an architecture diagram of a substation process layer on-site module device provided by an embodiment of the present invention.
请参照图1，本发明实施例的第一方面提供了一种变电站过程层就地模块装置，包括：背板、CPU插件、人机插件、I/O插件、常规互感器插件和电子式互感器插件；背板通过CAN分别与CPU插件、人机插件、I/O插件、常规互感器插件和电子式互感器插件连接；CPU插件包括千兆网口、百兆网口、SV级联接口、对时接口和/或AD转换回路采集接口；人机插件与CPU插件进行数据交互，并控制常规互感器插件和电子式互感器插件择一接入；常规互感器插件对变电站的电压互感器和电流互感器传输的信号进行转换，并传输至CPU插件的AD转换回路；电子式互感器插件接收FT3报文数据，并传输至CPU插件进行数据处理；I/O插件通过CAN与CPU插件进行数据交互。Referring to FIG. 1 , a first aspect of the embodiments of the present invention provides a substation process layer local module device, including: a backplane, a CPU plug-in, a man-machine plug-in, an I/O plug-in, a conventional transformer plug-in, and an electronic mutual inductance The backplane is connected to the CPU plug-in, man-machine plug-in, I/O plug-in, conventional transformer plug-in and electronic transformer plug-in respectively through CAN; CPU plug-in includes Gigabit Ethernet port, Fast Ethernet port, SV cascade interface , time synchronization interface and/or AD conversion loop acquisition interface; man-machine plug-in and CPU plug-in exchange data, and control the connection of conventional transformer plug-in and electronic transformer plug-in; Convert the signal transmitted by the current transformer and transmit it to the AD conversion circuit of the CPU plug-in; the electronic transformer plug-in receives the FT3 message data and transmits it to the CPU plug-in for data processing; I/O plug-in through CAN and CPU plug-in for data processing Data interaction.
上述技术方案通过简化智能变电站设备组成和网络结构，采用与一次设备同体设计且紧密耦合的接地模块，替代了现有的智能终端和合并单元，并依据使用环境对装置进行调整，实现了交流模拟量、一次设备状态和控制信息就地数字化传输，降低了成本，提高了一次设备及变电站的智能化和集约化。变电站过程层就地模块装置可以适用于各种电压等级的电磁式(电容式)电压互感器或电流互感器的线路、母联、分段、桥、主变各侧(不含间隙零序)等间隔，安装于间隔汇控柜或就地设备舱，与一次设备通体安装，分布于机构箱内，结构紧凑，耦合紧密。具体的，就地模块装置可以适用小型化机箱，采用后接线方式。背板是就地模块装置中各个插件通信的桥梁。The above technical solution simplifies the equipment composition and network structure of the intelligent substation, adopts a grounding module that is designed in the same body as the primary equipment and is tightly coupled to replace the existing intelligent terminal and merging unit, and adjusts the device according to the use environment to realize AC simulation. On-site digital transmission of quantity, primary equipment status and control information reduces costs and improves the intelligence and intensification of primary equipment and substations. The local module device at the process layer of the substation can be applied to the lines, bus ties, subsections, bridges, and main transformers of various voltage levels of electromagnetic (capacitive) voltage transformers or current transformers (excluding gap zero sequence) Equally spaced, installed in the interval control cabinet or on-site equipment compartment, installed with the primary equipment, distributed in the mechanism box, compact in structure and tightly coupled. Specifically, the on-site module device can be applied to a miniaturized chassis and adopts a rear wiring method. The backplane is the bridge for communication between the various plug-ins in the local module installation.
人机插件可以具备液晶显示器和按键的面板插件，具备CAN网通信功能，可以通过按键和液晶显示器与CPU插件进行指令及其数据的交互，具备友好的人机交互功能。The man-machine plug-in can be equipped with a panel plug-in of LCD display and buttons, and has the function of CAN network communication.
CPU插件具有ZYNQ芯片，ZYNQ芯片是就地模块装置的算法处理的核心芯片，具备算法处理功能，并具备FPGA高精度时标高速接口的特点。The CPU plug-in has a ZYNQ chip. The ZYNQ chip is the core chip of the algorithm processing of the local module device. It has the function of algorithm processing and has the characteristics of FPGA high-precision time-scale high-speed interface.
CPU插件具备千兆组网、千兆环网、SV级联、SV点对点和对时接口等组合选型，并可根据具体应用场景的功能需求具备各种硬件选型的定制。The CPU plug-in has a combination of gigabit networking, gigabit ring network, SV cascade, SV point-to-point and time synchronization interfaces, and can be customized according to the functional requirements of specific application scenarios.
常规互感器插件还包括第一电源单元；第一电源单元用于向就地模块装置供电。常规互感器插件具备电压互感器(Potential Transformer，PT)和电流互感器(Currenttransformer，CT)信号转换及电源供电的功能，将PT和/或CT信号转换后通过背板发送至CPU插件的AD转换回路进行信号处理；其中，PT和/或CT的数量可以依据具体应用场景的功能需求进行选配应用。电子式互感器插件还包括第二电源单元；第二电源单元用于向就地模块装置供电。此外，与常规互感器插件连接的AD转换回路大于或等于16路。The conventional transformer plug-in also includes a first power supply unit; the first power supply unit is used to supply power to the local modular device. The conventional transformer plug-in has the functions of voltage transformer (PT) and current transformer (CT) signal conversion and power supply, and the PT and/or CT signal is converted and sent to the AD conversion of the CPU plug-in through the backplane The loop performs signal processing; wherein, the number of PTs and/or CTs can be selected and applied according to the functional requirements of specific application scenarios. The electronic transformer plug-in also includes a second power supply unit; the second power supply unit is used to supply power to the local module device. In addition, the AD conversion circuit connected with the conventional transformer plug-in is greater than or equal to 16 circuits.
电子式互感器插件最大具备9路电子式互感器遵循《DLT 282-2012合并单元技术条件》规定的FT3报文接入，具备光口选配功能，通过背板连线直接发送至CPU插件进行采样值数据处理。The electronic transformer plug-in has a maximum of 9 channels of electronic transformers. The electronic transformers comply with the FT3 message access stipulated in "DLT 282-2012 Merging Unit Technical Conditions", and have the optional optical port function. Sampled value data processing.
常规互感器插件和电子式互感器插件在人机插件的控制下，择一接入CPU插件。Under the control of the man-machine plug-in, one of the conventional transformer plug-in and the electronic transformer plug-in can be connected to the CPU plug-in.
I/O插件具备开入接口、开出接口、串口和/或直流接口，开入接口、开出接口、串口和/或直流接口可以通过CAN与CPU插件进行数据交互，并根据插件的插槽位置与背板的CANID对应。The I/O plug-in has an input interface, an output interface, a serial port and/or a DC interface. The input interface, the output interface, the serial port and/or the DC interface can exchange data with the CPU plug-in through CAN, and according to the slot of the plug-in The position corresponds to the CANID of the backplane.
对时的方式包括：1588对时、B码对时或PPS对时。1588对时通过千兆网口对时；B码对时通过B码对时接口对时；PPS对时通过PPS接口对时。人机插件可切换对时方式，上述对时方式仅选用一种。The time synchronization methods include: 1588 time synchronization, B code time synchronization or PPS time synchronization. 1588 time synchronization is performed through the Gigabit Ethernet port; B code time synchronization is performed through the B code time synchronization interface; PPS time synchronization is performed through the PPS interface. The man-machine plug-in can switch the time synchronization method, and only one of the above time synchronization methods is selected.
此外，PPS接口属于专用测试接口，可用于对时精度测试和守时精度测试。In addition, the PPS interface is a dedicated test interface, which can be used for time-synchronization accuracy test and time-keeping accuracy test.
SV级联包括：2路SV级联、1路SV级联和无级联模式。其中，2路SV级联支持互为备用的2路母线电压的SV接入；1路SV级联支持1路母线电压的SV接入；无级联模拟不需要级联母线电压。人机插件可以实现2路SV级联、1路SV级联和无级联模式的切换。SV cascade includes: 2-way SV cascade, 1-way SV cascade and no cascade mode. Among them, 2-way SV cascade supports SV access of 2-way bus voltage as backup for each other; 1-way SV cascade supports 1-way bus voltage SV access; no cascade simulation does not require cascaded bus voltage. The man-machine plug-in can realize the switching of 2-way SV cascade, 1-way SV cascade and no cascade mode.
I/O插件包括开入接口、开出接口、串口和/或直流接口；开入接口、开出接口、串口或直流接口均通过CAN与CPU插件进行数据交换。The I/O plug-in includes an input interface, an output interface, a serial port and/or a DC interface; the input interface, the output interface, the serial port or the DC interface all exchange data with the CPU plug-in through CAN.
此外，千兆网口可以用于环网或组网的GOOSE接收和发送，并支持千兆环网HSR协议，还可用于SV的发送和1588对时接入。人机插件可以实现对千兆组网功能或千兆环网功能的选择。In addition, the Gigabit Ethernet port can be used for GOOSE reception and transmission of the ring network or networking, and supports the Gigabit ring network HSR protocol, and can also be used for SV transmission and 1588 time synchronization access. The man-machine plug-in can realize the choice of gigabit networking function or gigabit ring network function.
百兆网口可以实现多端口百兆SV点对点输出，应用母线就地模块装置将SV采样值点对点发送。The 100M Ethernet port can realize multi-port 100M SV point-to-point output, and the SV sampling value can be sent point-to-point using the bus local module device.
图2是本发明实施例提供的变电站过程层就地模块装置控制方法流程图。FIG. 2 is a flowchart of a method for controlling an on-site module device at a substation process layer provided by an embodiment of the present invention.
请参照图2，本发明实施例的第二方面提供了一种变电站过程层就地模块装置控制方法，包括如下步骤：Referring to FIG. 2 , a second aspect of the embodiment of the present invention provides a method for controlling an on-site module device at a process layer of a substation, including the following steps:
S100，获取就地模块装置的硬件信息。S100: Acquire hardware information of the local module device.
S200，依据硬件信息，确定就地模块装置的功能配置。S200, according to the hardware information, determine the functional configuration of the on-site modular device.
S300，依据功能配置，控制就地模块装置启动运行。S300 , according to the functional configuration, the on-site modular device is controlled to start running.
就地模块装置上电后，先检测硬件信息，确定对应的硬件通信服务功能。就地模块装置默认其硬件信息不选定。在硬件信息未选定的情况下，就地模块装置上电后不工作，并提示装置出现故障。在硬件信息选定后，重新启动就地模块装置，检测配置及其定值均正确后，提示装置的故障消除，并正常运行。After the local module device is powered on, the hardware information is detected first, and the corresponding hardware communication service function is determined. The local module device has its hardware information unselected by default. In the case that the hardware information is not selected, the local module device will not work after power-on, and the device will be prompted to fail. After the hardware information is selected, restart the local module device, and after the detection configuration and its setting are correct, it will prompt the device to eliminate the fault and run normally.
具体的，硬件信息包括：网络类型、互感器类型、对时类型、级联类型和/或CAN网络配置选择。网络类型为千兆组网或千兆环网；判断互感器类型为常规互感器或电子式互感器；判断对时类型为B码对时、PPS对时或1588对时；判断级联类型为2路SV级联、1路SV级联或无级联模式；CAN网络配置选择为开入、开出或直流。Specifically, the hardware information includes: network type, transformer type, time synchronization type, cascade type and/or CAN network configuration selection. The network type is gigabit networking or gigabit ring network; the type of transformer is judged to be conventional transformer or electronic transformer; the type of time synchronization is B code, PPS or 1588; the type of cascade is judged as 2-channel SV cascade, 1-channel SV cascade or no cascade mode; CAN network configuration selection is switch-in, switch-out or DC.
本发明实施例旨在保护一种变电站过程层就地模块装置及其控制方法，其中装置包括：背板、CPU插件、人机插件、I/O插件、常规互感器插件和/或电子式互感器插件；背板通过CAN分别与CPU插件、人机插件、I/O插件、常规互感器插件和/或电子式互感器插件连接；CPU插件包括千兆网口、百兆网口、SV级联接口、对时接口和/或AD转换回路采集接口；人机插件与CPU插件进行数据交互，并控制常规互感器插件和电子式互感器插件择一接入；常规互感器插件对变电站的电压互感器和电流互感器传输的信号进行转换，并传输至CPU插件的AD转换回路；电子式互感器插件接收FT3报文，并传输至CPU插件进行数据处理；I/O插件通过CAN与CPU插件进行数据交互。上述技术方案具备如下效果：The embodiments of the present invention aim to protect a substation process layer on-site module device and a control method thereof, wherein the device includes: a backplane, a CPU plug-in, a man-machine plug-in, an I/O plug-in, a conventional transformer plug-in and/or an electronic mutual inductance The backplane is connected to the CPU plug-in, man-machine plug-in, I/O plug-in, conventional transformer plug-in and/or electronic transformer plug-in respectively through CAN; CPU plug-in includes Gigabit Ethernet port, Fast Ethernet port, SV level connection interface, time synchronization interface and/or AD conversion loop acquisition interface; human-machine plug-in and CPU plug-in exchange data, and control the connection of conventional transformer plug-in and electronic transformer plug-in; conventional transformer plug-in The signal transmitted by the transformer and the current transformer is converted and transmitted to the AD conversion circuit of the CPU plug-in; the electronic transformer plug-in receives the FT3 message and transmits it to the CPU plug-in for data processing; I/O plug-in through CAN and CPU plug-in data interaction. The above technical solution has the following effects:
通过简化智能变电站设备组成和网络结构，采用与一次设备同体设计且紧密耦合的接地模块，替代了现有的智能终端和合并单元，并依据使用环境对装置进行调整，实现了交流模拟量、一次设备状态和控制信息就地数字化传输，降低了成本，提高了一次设备及变电站的智能化和集约化。By simplifying the equipment composition and network structure of the intelligent substation, adopting the grounding module which is designed in the same body with the primary equipment and tightly coupled to replace the existing intelligent terminal and merging unit, and adjusts the equipment according to the use environment, realizing the AC analog quantity, primary The local digital transmission of equipment status and control information reduces costs and improves the intelligence and intensification of primary equipment and substations.
应当理解的是，本发明的上述具体实施方式仅仅用于示例性说明或解释本发明的原理，而不构成对本发明的限制。因此，在不偏离本发明的精神和范围的情况下所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。此外，本发明所附权利要求旨在涵盖落入所附权利要求范围和边界、或者这种范围和边界的等同形式内的全部变化和修改例。It should be understood that the above-mentioned specific embodiments of the present invention are only used to illustrate or explain the principle of the present invention, but not to limit the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention should be included within the protection scope of the present invention. Furthermore, the appended claims of this invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalents of such scope and boundaries.
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