CN113589064A - Hydropower plant fault recording implementation method and system with chain starting function - Google Patents

Abstract

Translated fromChinese

本发明提供了一种具有连锁启动功能的水电厂故障录波实现方法，包括如下步骤：步骤一、通过故障录波装置实时监测水电厂动态数据，对异常状况实时报警；步骤二、当任一故障录波装置启动录波时，该故障录波装置同时发出报文，报文中包含有连锁启动等级，同一局域网内接收到该报文的故障录波装置根据所述连锁启动等级以及自身预设的连锁启动等级启动录波；步骤三、连锁启动的故障录波装置按绝对时间生成录波文件并上送。本发明可实现实时对全系统设备的运行状态进行有效监测，为后续进行系统运行状态分析提供了有力保障。

The invention provides a method for realizing the fault recording of a hydropower plant with a chain start function, comprising the following steps: step 1, real-time monitoring of dynamic data of the hydropower plant through a fault recording device, and real-time alarm for abnormal conditions; step 2, when any When the fault wave recorder starts recording, the fault wave recorder sends out a message at the same time, and the message contains the chain start level. The fault wave recorder in the same local area network receives the message according to said chain start level and The set chain start level starts the wave recording; Step 3, the chain start fault wave recorder generates the wave record file according to the absolute time and uploads it. The invention can realize real-time effective monitoring of the running state of the whole system equipment, and provides a strong guarantee for the subsequent analysis of the system running state.

Description

Hydropower plant fault recording implementation method and system with chain starting function

Technical Field

The invention relates to the technical field of starting of a fault recording device of a power system, in particular to a method and a system for realizing fault recording of a hydraulic power plant with a chain starting function.

Background

The hydroelectric energy is an economic, low-carbon and clean renewable energy and occupies an important position in non-fossil energy. Under the background that the traditional fossil energy is gradually in shortage and the environmental pollution is increasingly intensified, the development and utilization of water and electricity energy are accelerated, the energy utilization rate is improved, the requirements for constructing a conservation-oriented and environment-friendly society can be met, the comprehensive level of sustainable development is improved, and the strong guarantee is provided for the national energy safety and the good economic development. Therefore, the hydroelectric energy plays a guiding role in the development and utilization of renewable energy in various countries. China has abundant water resource reserves, and the content, the exploitable quantity and the installed capacity of hydroelectric energy are all at the top of the world. In recent years, China continuously increases the development of hydroelectric energy, and obtains a series of remarkable achievements, with the planning and construction of thirteen hydroelectric bases such as Jinsha river, Yamo river, and Dazhuan river, the total installed capacity of the hydroelectric power in China reaches 3.5 hundred million kilowatts and the annual generated energy is about 1.2 trillion kilowatt hours, and the double bistable state is the first in the world. However, it is worth noting that the developed countries have a high overall development degree of hydroelectric energy, and switzerland, france, italy, etc. exceed eight, while China currently has a development degree of hydroelectric energy of only 46%, and still has a large gap compared with the developed countries. Therefore, the method continues to vigorously develop the hydroelectric energy, improves the energy utilization rate, is an internal requirement for realizing the steady transformation of the energy society, and has great promotion effects on realizing the resource optimization configuration, the emission reduction of environmental pollutants and the economic sustainable development.

The complex conversion relation of potential energy, kinetic energy and electric energy of a water body is usually accompanied in the production process of hydroelectric energy, and as a core device in the energy conversion process, the safe, stable and reliable operation state of a hydroelectric generating set is a primary target pursued by operation and maintenance personnel of a power station, and the safe, stable and reliable operation state not only relates to the safety of the power station, but also directly relates to whether the power station can stably and economically provide reliable electric power for a power grid.

With the progress of the technological level and the improvement of the manufacturing capability, modern hydroelectric generating sets gradually show the development trend of giant, high integration and intellectualization, and the increasingly complex hydroelectric generating set structure causes certain difficulties for the effective implementation of the state monitoring and fault diagnosis of the water supply plant. And the fault recorder which is widely used at present has the following defects in function: 1. and starting the recording according to the starting fixed value of the recording, independently working, failing to start other devices and recording data information of all equipment in the system when the equipment fails. 2. Only transient data of wave recording start are stored, and the data of long-term steady state are not analyzed sufficiently and lack of statistical function of the data.

Therefore, there is a need to develop a fault recording system for a hydraulic power plant with functions of linked start and remote online monitoring.

Disclosure of Invention

The invention aims to establish a hydraulic power plant fault recording system with functions of linked start and remote online monitoring, and effectively monitor the running state of the whole system equipment in real time.

The embodiment of the invention is realized by the following technical scheme: a hydraulic power plant fault recording implementation method with a chain starting function comprises the following steps:

monitoring dynamic data of a hydraulic power plant in real time through a fault recording device, and giving an alarm for an abnormal condition in real time;

step two, when any fault recording device starts recording, the fault recording device simultaneously sends out a message, the message comprises a chain starting grade, and the fault recording device which receives the message in the same local area network starts recording according to the chain starting grade and a chain starting grade preset by the fault recording device;

and step three, generating a wave recording file according to absolute time by the fault wave recording device started in a linkage manner and uploading the wave recording file.

According to a preferred embodiment, the first step specifically comprises:

the method comprises the steps of counting voltage and current data, monitoring system information and equipment information, respectively sampling steady-state data after the voltage and current data, the monitoring system information and the equipment information are denoised, and timely giving an alarm when the steady-state data are larger than a preset threshold value, wherein the voltage and current data comprise: the number of current overlimit times, the unbalance degree of three-phase current, harmonic current, the unbalance degree of three-phase voltage, harmonic voltage and voltage fluctuation deviation.

According to a preferred embodiment, the second step specifically includes:

when any fault wave recording device sends a linkage start message, adding the fault time and the linkage start grade into a Dat data field of a communication data frame to obtain a complete communication data frame, completing encapsulation, and finally sending the message to the fault wave recording devices in the same local area network, wherein the linkage start grade in the message is the linkage start grade of the linkage start grade, and the linkage start grade in the message is the linkage start grade numerical value in the Dat data field.

According to a preferred embodiment, said second step further comprises:

when the fault wave recording device receives the message, if the numerical value of the cascading start level in the message is larger than or equal to the preset cascading start level, receiving the cascading start and starting the wave recording; otherwise, the start is not interlocked.

The invention provides a hydropower plant fault recording system with chain start, which is applied to the method and comprises the following steps:

the fault recording devices are used for monitoring dynamic data of the hydraulic power plant in real time and giving an alarm for abnormal conditions in real time;

the network data exchange equipment is used for connecting the fault wave recording device to divide a local area network;

the message generating unit is used for generating a message according to the cascading start level of the fault wave recording device;

the message sending unit is used for sending the message to a fault recording device accessed to the same network data switching equipment;

the judging unit is used for judging whether the message linkage starting grade received by the fault wave recording device is greater than or equal to the self linkage starting grade or not to obtain a first judging result;

the starting unit is used for starting the fault recording device if the first judgment result shows that the message interlocking starting grade is greater than or equal to the self interlocking starting grade;

the wave recording file generating unit is used for generating and uploading a wave recording file according to the absolute time of the system;

and the monitoring file generating unit is used for forming a system state monitoring file according to the uploaded wave recording file.

According to a preferred embodiment, the fault recording device comprises:

the voltage and current data acquisition module is used for acquiring data of current out-of-limit times, three-phase current unbalance, harmonic current, three-phase voltage unbalance, harmonic voltage and voltage fluctuation deviation;

the monitoring system comprises a monitoring system information acquisition module and an equipment information acquisition module;

the denoising module is used for denoising the acquired data to obtain steady-state data;

and the alarm module is used for giving an alarm when the data is greater than the preset threshold value.

According to a preferred embodiment, the message generating unit includes:

the fault time acquisition module is used for acquiring the fault time sent by the alarm module;

the linkage starting grade acquisition module is used for acquiring a linkage starting grade preset by the fault wave recording device;

and the generation module is used for adding the fault time and the chain starting grade into a Dat data field of the communication data frame to obtain a complete communication data frame and finish packaging.

According to a preferred embodiment, the determining unit comprises:

the data frame acquisition module is used for acquiring a data frame, and an MAC address and a Dat data field of the data frame;

the first judgment module is used for judging whether the MAC address is consistent with the MAC addresses of the sending network card and the network card per se to obtain a second judgment result;

and the second judging module is used for judging whether the linkage start level in the Dat data domain is greater than or equal to the self linkage start level when the second judging result shows that the MAC address is consistent with the MAC addresses of the sending network card and the self network card, so as to obtain the first judging result.

According to a preferred embodiment, the network data switching device is a switch.

The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects: 1) the invention can realize effective monitoring of the running state of the whole system and reflect all running states of the system in real time; 2) by linkage starting, faults can be accurately identified and related wave recording devices can be started, so that the condition that the single fault wave recording device cannot identify fault information and cannot be started is avoided; 3) the system has a remote online monitoring function, greatly reduces the analysis workload of operation maintenance personnel, increases the analysis efficiency and accuracy, and ensures the safe and reliable operation of equipment; 4) in the chain starting protocol, a chain starting grade is added according to the specific conditions of the wave recording device, selective starting is realized, invalid chain starting data are reduced, data redundancy caused by the invalid chain starting data is greatly reduced, and the effectiveness of the data is improved; 5) the monitoring file of the running state of the whole system of the water plant at the same time can be formed, and powerful guarantee is provided for the follow-up analysis of the running state of the system.

Drawings

Fig. 1 is a logic flow diagram of a method for implementing fault recording of a hydroelectric power plant according toembodiment 1 of the present invention;

fig. 2 is a schematic flow chart of a hydraulic power plant fault recording system according toembodiment 1 of the present invention;

fig. 3 is a schematic view of a partition of a fault recording apparatus according toembodiment 1 of the present invention;

fig. 4 is a block diagram of a fault recording system of a hydroelectric power plant according toembodiment 1 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Example 1

Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for implementing fault recording of a hydraulic power plant according to an embodiment of the present invention.

The research of the applicant finds that with the progress of the technological level and the improvement of the manufacturing capacity, the modern hydroelectric generating set gradually shows the development trend of giant, high integration and intellectualization, and the increasingly complex structure of the hydroelectric generating set causes certain difficulties for the effective implementation of the state monitoring and the fault diagnosis of the water supply plant. And the fault recorder which is widely used at present has the following defects in function: 1. and starting the recording according to the starting fixed value of the recording, independently working, failing to start other devices and recording data information of all equipment in the system when the equipment fails. 2. Only transient data of wave recording start are stored, and the data of long-term steady state are not analyzed sufficiently and lack of statistical function of the data. Therefore, the invention provides a hydraulic power plant fault recording implementation method with a chain starting function, which specifically comprises the following steps:

specifically, the method comprises the following steps:

monitoring dynamic data of a hydraulic power plant in real time through a fault recording device, and giving an alarm for an abnormal condition in real time; in an implementation manner of the embodiment of the present invention, the first step specifically includes:

the method comprises the steps of counting voltage and current data, monitoring system information and equipment information, respectively sampling steady-state data after the voltage and current data, the monitoring system information and the equipment information are denoised, and timely giving an alarm when the steady-state data are larger than a preset threshold value, wherein the voltage and current data comprise: the number of current overlimit times, the unbalance degree of three-phase current, harmonic current, the unbalance degree of three-phase voltage, harmonic voltage and voltage fluctuation deviation.

In an implementation manner of the embodiment of the present invention, the following methods are correspondingly adopted to perform steady-state data sampling, and the following methods are specifically described below:

1) current out-of-limit point detection based on wavelet transform modulus maximum value method

The method specifically comprises the following steps: let the signal be f (t), and use Lipschitz index α to characterize the singularity of the signal at a certain point, we can obtain:

|f(t₀+h)-f(t₀)≤Ah^α|

in the above formula, if alpha is 0. ltoreq. alpha. ltoreq.1, A and h₀Is a constant greater than 0, and 0<h<h₀F (t) at t₀Has an index of alpha, t₀Refers to a certain time;

the convolution form of the wavelet transform of (f) (t) is expressed as:

in the above equation,. phi. () refers to a convolution function, and t represents a certain time at a scale s₀If the pair belongs to x₀Any point x in a certain neighborhood of (a) has:

|w_f(s₀,x)|≤|w_f(s₀,x₀)|

then call(s)₀，x₀) Is scale s₀The connection lines of all the points formed by the modulus maxima in the scale space (s, x) become the modulus maximum lines, and on the modulus maximum lines, the relationship between the wavelet transform coefficient and the Lipschitz index alpha is expressed as:

|w_f(s,x)|≤ks^α

if t₀If the point is a mutation point, the wavelet transform at the point obtains a modulus maximum value; by pairsAnd counting the number of the out-of-limit points to calculate the number of the out-of-limit current. Further, in the above formula, ks^aAnd marking a threshold of the modulus maximum, further performing threshold processing on the modulus maximum on the maximum scale after the modulus maximum is obtained by wavelet transformation, giving an alarm if the above formula is satisfied, and otherwise, removing the maximum point.

2) Unbalance of three-phase current

The square mean root value of the current fundamental wave negative sequence component or the fundamental wave zero sequence component and the fundamental wave positive sequence component is expressed as follows:

in the above formula, ∈_I2And ε_I0Negative sequence current unbalance and zero sequence current unbalance are respectively obtained; i is₂The root mean square value of the negative sequence fundamental component of the three-phase current is obtained; i is₁The positive sequence fundamental component root mean square value of the three-phase current is obtained; i is₀The root mean square value of the zero sequence fundamental component of the three-phase current is obtained.

3) Harmonic current

Total harmonic distortion of current THD₁The calculation formula is as follows:

in the above formula, I_hThe root mean square value of the h-th harmonic current; i is₁Is the root mean square value of the fundamental current.

4) Unbalance of three-phase voltage

The voltage fundamental wave negative sequence component or the square mean root value of the fundamental wave zero sequence component and the fundamental wave positive sequence component is expressed as follows:

in the above formula, ∈_U2And ε_U0Respectively negative sequence voltage unbalance and zero sequence current unbalance; u shape₂Of three-phase voltageNegative sequence fundamental component root mean square value; u shape₁The positive sequence fundamental component root mean square value of the three-phase voltage is obtained; u shape₀The root mean square value of the zero sequence fundamental component of the three-phase voltage is obtained.

5) Harmonic voltage

Total Harmonic Distortion (THD) of voltage_UThe calculation formula is as follows:

in the above formula, U_hThe root mean square value of the h-th harmonic voltage; u shape₁Is the root mean square value of the fundamental voltage.

6) Deviation of voltage fluctuation

The voltage fluctuation deviation calculation formula is as follows:

in the above formula, δ_UIs a voltage deviation; u shape_reIs the actual voltage, U_NIs the rated voltage of the system.

Further, when the fault recording device acquires the fault information and starts the fault recording device in the above mode, the second step can be continuously executed; specifically, in an implementation manner of the embodiment of the present invention, the step two specifically includes: when any fault recording device starts recording, the fault recording device sends out a message at the same time, the message contains a chain starting grade, and the fault recording device which receives the message in the same local area network starts recording according to the chain starting grade and a chain starting grade preset by the fault recording device. In an implementation manner of the embodiment of the present invention, the second step specifically includes:

when any fault wave recording device sends a linkage start message, adding the fault time and the linkage start grade into a Dat data field of a communication data frame to obtain a complete communication data frame, completing encapsulation, and finally sending the message to the fault wave recording devices in the same local area network, wherein the linkage start grade in the message is the linkage start grade of the linkage start grade, and the linkage start grade in the message is the linkage start grade numerical value in the Dat data field. Specifically, in this embodiment, the frame format of the tandem start protocol is shown in table 1:

TABLE 1 frame format for chained starts

It should be noted that, when the length of dat field is less than 32 bytes, the length of dat in the payload data field is not less than 44 bytes through the supplementation of ex field; the LEN field indicates the length of the valid data in the payload data field dat, excluding the length of the supplementary ex field, whose endianness is LITTLE-ENDIAN (LITTLE-ENDIAN); the SYNC field, the STX field and the CRC field do not need software processing and are processed by an Ethernet chip; the DST ADDR field is used for filling in MAC addresses or broadcast addresses of 0xFF, 0xFF, 0xFF, 0xFF, 0xFF of the target network card; the SRC ADDR field needs to fill in the MAC address of the sending network card; the ENDIAN of the TYPE field is BIG-ENDIAN (BIG-ENDIAN), and the protocol must be 0x 7642. Further, in an implementation manner of the embodiment of the present invention, a format of the dat data field is shown in table 2:

offset of	Data type	(symbol)	Description or value
				0～1	U16	LEN	16
2～3	U16	1en	16
				4～7	U16	code	0x8000
8～11	U32	gnum						1
				12～13	U32	gidx	0
14～15	U16	Time	Time of failure (unit 0.1ms, value 0 ~ 9999)
				16～17	U16	level	A device with a high ranking (value 0-8) may activate a device with a low ranking; the larger the value, the higher the rank

TABLE 2 data Format of dat data field

It should be noted that the introduction of the offset 16-17 levels is mainly used for partition chain starting, and the specific rule is as follows: the chain starting of each fault wave recording device can be configured, and the default is 0; when each fault recording device sends a chain starting message, the chain starting grade in the message is the chain starting grade of the device; when each fault wave recording device receives the chain starting message, if the chain starting grade in the message is greater than or equal to the chain starting grade of the fault wave recording device, receiving chain starting and starting wave recording; otherwise, the start is not interlocked.

Further, when the fault recording device is started in a chain manner in the above manner, the third step can be continuously executed; in an implementation manner of the embodiment of the present invention, the step three specifically includes: and the fault recording device started in a linkage manner generates a recording file according to the absolute time of the fault recording system and sends the recording file upwards to form a monitoring file of the whole system running state of the hydraulic power plant. It should be noted that, by forming the monitoring file of the whole system operation state of the water plant at the same time, powerful guarantee can be provided for the subsequent analysis of the system operation state.

Referring to fig. 2, fig. 3 and fig. 4, wherein fig. 2 is a schematic flow chart of a fault recording system of a hydraulic power plant; FIG. 3 is a schematic view of a fault recorder in section; fig. 4 is a block diagram of a fault recording system of a hydraulic power plant.

The embodiment of the invention also provides a hydropower plant fault recording system with linkage start, which is applied to the method and comprises the following steps: the fault recording devices are used for monitoring dynamic data of the hydraulic power plant in real time and giving an alarm for abnormal conditions in real time; the switch is used for connecting the fault wave recording device to divide a local area network; the message generating unit is used for generating a message according to the cascading start level of the fault wave recording device; the message sending unit is used for sending the message to a fault recording device accessed to the same switch; the judging unit is used for judging whether the message linkage starting grade received by the fault wave recording device is greater than or equal to the self linkage starting grade or not to obtain a first judging result; the starting unit is used for starting the fault recording device if the first judgment result shows that the message interlocking starting grade is greater than or equal to the self interlocking starting grade; the wave recording file generating unit is used for generating and uploading a wave recording file according to the absolute time of the system; and the monitoring file generating unit is used for forming a system state monitoring file according to the uploaded wave recording file.

Specifically, the fault recording device includes: the voltage and current data acquisition module is used for acquiring data of current out-of-limit times, three-phase current unbalance, harmonic current, three-phase voltage unbalance, harmonic voltage and voltage fluctuation deviation; the monitoring system comprises a monitoring system information acquisition module and an equipment information acquisition module; the denoising module is used for denoising the acquired data to obtain steady-state data; and the alarm module is used for giving an alarm when the data is greater than the preset threshold value.

Further, the packet generating unit includes: the fault time acquisition module is used for acquiring the fault time sent by the alarm module; the linkage starting grade acquisition module is used for acquiring a linkage starting grade preset by the fault wave recording device; and the generation module is used for adding the fault time and the chain starting grade into a Dat data field of the communication data frame to obtain a complete communication data frame and finish packaging.

Further, the judging unit includes: the data frame acquisition module is used for acquiring a data frame, and an MAC address and a Dat data field of the data frame; the first judgment module is used for judging whether the MAC address is consistent with the MAC addresses of the sending network card and the network card per se to obtain a second judgment result; and the second judging module is used for judging whether the linkage start level in the Dat data domain is greater than or equal to the self linkage start level when the second judging result shows that the MAC address is consistent with the MAC addresses of the sending network card and the self network card, so as to obtain the first judging result.

In summary, the technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects: 1) the invention can realize effective monitoring of the running state of the whole system and reflect all running states of the system in real time; 2) by linkage starting, faults can be accurately identified and related wave recording devices can be started, so that the condition that the single fault wave recording device cannot identify fault information and cannot be started is avoided; 3) the system has a remote online monitoring function, greatly reduces the analysis workload of operation maintenance personnel, increases the analysis efficiency and accuracy, and ensures the safe and reliable operation of equipment; 4) in the chain starting protocol, a chain starting grade is added according to the specific conditions of the wave recording device, selective starting is realized, invalid chain starting data are reduced, data redundancy caused by the invalid chain starting data is greatly reduced, and the effectiveness of the data is improved; 5) the monitoring file of the running state of the whole system of the water plant at the same time can be formed, and powerful guarantee is provided for the follow-up analysis of the running state of the system.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

Translated fromChinese

1.一种具有连锁启动功能的水电厂故障录波实现方法，其特征在于，包括如下步骤：1. a hydropower plant fault recording realization method with chain start function, is characterized in that, comprises the steps:步骤一、通过故障录波装置实时监测水电厂动态数据，对异常状况实时报警；Step 1. Monitor the dynamic data of the hydropower plant in real time through the fault recording device, and alarm the abnormal situation in real time;步骤二、当任一故障录波装置启动录波时，该故障录波装置同时发出报文，报文中包含有连锁启动等级，同一局域网内接收到该报文的故障录波装置根据所述连锁启动等级以及自身预设的连锁启动等级启动录波；Step 2. When any fault recording device starts recording, the fault recording device sends out a message at the same time, and the message contains the chain start level. The fault recording device in the same local area network receives the message according to the The chain start level and its own preset chain start level start the recording;步骤三、连锁启动的故障录波装置按绝对时间生成录波文件并上送。Step 3. The fault wave recording device that is activated in a chain generates a wave recording file according to the absolute time and uploads it.2.如权利要求1所述的具有连锁启动功能的水电厂故障录波实现方法，其特征在于，步骤一具体包括：2. The method for realizing the fault recording of hydropower plants with chain start function as claimed in claim 1, wherein step 1 specifically comprises:统计电压和电流数据，监测系统信息以及设备信息，分别采样电压和电流数据、监测系统信息以及设备信息去噪后的稳态数据，当大于预设阈值时，及时告警，其中，所述电压和电流数据包括：电流越限次数、三相电流不平衡度、谐波电流、三相电压不平衡度、谐波电压、电压波动偏差。Count voltage and current data, monitor system information and device information, sample voltage and current data, monitor system information, and steady-state data after de-noising of device information, when greater than a preset threshold, give an alarm in time, where the voltage and Current data includes: current overrun times, three-phase current unbalance, harmonic current, three-phase voltage unbalance, harmonic voltage, voltage fluctuation deviation.3.如权利要求2所述的具有连锁启动功能的水电厂故障录波实现方法，其特征在于，所述步骤二具体包括：3. The method for realizing the fault recording of hydropower plants with chain start function as claimed in claim 2, wherein the step 2 specifically comprises:当任一故障录波装置发送连锁启动报文时，将故障时间和连锁启动等级加入通信数据帧的Dat数据域，得到完整通信数据帧，完成封装，最终将报文发送至同一局域网内的故障录波装置，其中，报文中的连锁启动等级为其自身的连锁启动等级，报文中的连锁启动等级为Dat数据域中连锁启动等级数值。When any fault wave recorder sends a chain start message, add the failure time and chain start level to the Dat data field of the communication data frame to obtain a complete communication data frame, complete the encapsulation, and finally send the message to the fault in the same local area network. The wave recording device, wherein the chain start level in the message is its own chain start level, and the chain start level in the message is the value of the chain start level in the Dat data field.4.如权利要求3所述的具有连锁启动功能的水电厂故障录波实现方法，其特征在于，所述步骤二进一步包括：4. The method for realizing the fault recording of hydropower plants with chain start function as claimed in claim 3, wherein the step 2 further comprises:故障录波装置接收到报文时，若报文中的连锁启动等级数值大于或等于自身的预设连锁启动等级，则接收连锁启动，启动录波；否则，不连锁启动。When the fault wave recording device receives the message, if the value of the chain start level in the message is greater than or equal to its own preset chain start level, it will receive the chain start and start the wave recording; otherwise, the chain start will not be started.5.一种具有连锁启动的水电厂故障录波系统，应用到如权利要求1-4任一项所述的方法，其特征在于，包括：5. A hydropower plant fault recording system with chain start, applied to the method according to any one of claims 1-4, characterized in that, comprising:若干个故障录波装置，用以实时监测水电厂动态数据，对异常状况实时报警；Several fault recording devices are used to monitor the dynamic data of hydropower plants in real time and give real-time alarms to abnormal conditions;网络数据交换设备，用以连接所述故障录波装置划分局域网；Network data exchange equipment, used to connect the fault recording device to divide the local area network;报文生成单元，用以根据所述故障录波装置的连锁启动等级生成报文；a message generating unit, configured to generate a message according to the chain start level of the fault recording device;报文发送单元，用以向接入同一网络数据交换设备的故障录波装置发送所述报文；a message sending unit, configured to send the message to the fault recording device connected to the same network data exchange device;判断单元，用以判断所述故障录波装置接收的所述报文连锁启动等级是否大于等于自身连锁启动等级，得到第一判断结果；a judging unit for judging whether the chain start level of the message received by the fault recording device is greater than or equal to its own chain start level, to obtain a first judgment result;启动单元，用以若所述第一判断结果表示为所述报文连锁启动等级大于等于自身联锁启动等级，启动该故障录波装置；a start-up unit, used to start the fault recording device if the first judgment result indicates that the message interlock start level is greater than or equal to the self-interlock start level;录波文件生成单元，用以根据系统的绝对时间生成录波文件并上传；The wave recording file generation unit is used to generate and upload the wave recording file according to the absolute time of the system;监测文件生成单元，用以根据上传的录波文件形成系统状态监测文件。The monitoring file generating unit is used to form a system state monitoring file according to the uploaded wave recording file.6.如权利要求5所述的具有连锁启动的水电厂故障录波系统，其特征在于，所述故障录波装置包括：6. The hydropower plant fault recording system with chain start as claimed in claim 5, wherein the fault recording device comprises:电压和电流数据采集模块，用以采集电流越限次数、三相电流不平衡度、谐波电流、三相电压不平衡度、谐波电压及电压波动偏差数据；The voltage and current data acquisition module is used to collect the current over-limit times, three-phase current unbalance, harmonic current, three-phase voltage unbalance, harmonic voltage and voltage fluctuation deviation data;监测系统信息采集模块和设备信息采集模块；Monitoring system information acquisition module and equipment information acquisition module;去噪模块，用以对采集的数据进行去噪处理，获得稳态数据；The denoising module is used to denoise the collected data to obtain steady state data;告警模块，用以当数据大于预设阈值时发出告警。The alarm module is used to issue an alarm when the data is greater than the preset threshold.7.如权利要求5所述的具有连锁启动的水电厂故障录波系统，其特征在于，所述报文生成单元包括：7. The hydroelectric power plant fault recording system with chain start as claimed in claim 5, wherein the message generating unit comprises:故障时间获取模块，用以获取告警模块发送的故障时间；The failure time acquisition module is used to obtain the failure time sent by the alarm module;连锁启动等级获取模块，用以获取所述故障录波装置预设的连锁启动等级；a chain start level acquisition module, used to obtain the preset chain start level of the fault recording device;生成模块，用以将故障时间和连锁启动等级加入通信数据帧的Dat数据域，得到完整通信数据帧，完成封装。The generating module is used to add the failure time and the chain start level to the Dat data field of the communication data frame to obtain a complete communication data frame and complete the encapsulation.8.如权利要求5所述的具有连锁启动等级的水电厂故障录波系统，其特征在于，所述判断单元包括：8. The fault recording system of a hydropower plant with a chain start level according to claim 5, wherein the judging unit comprises:数据帧获取模块，用以获取数据帧及所述数据帧的MAC地址、Dat数据域；a data frame acquisition module, used to acquire a data frame and the MAC address and Dat data field of the data frame;第一判断模块，用以判断所述MAC地址是否与发送网卡和自身网卡的MAC地址一致，得到第二判断结果；a first judging module for judging whether the MAC address is consistent with the MAC addresses of the sending network card and its own network card, and obtaining a second judgment result;第二判断模块，用以当所述第二判断结果表示为所述MAC地址与发送网卡和自身网卡的MAC地址一致时，判断所述Dat数据域中的连锁启动等级是否大于等于自身连锁启动等级，得到所述第一判断结果。The second judgment module is used to judge whether the chain activation level in the Dat data field is greater than or equal to its own chain activation level when the second judgment result indicates that the MAC address is consistent with the MAC address of the sending network card and the own network card to obtain the first judgment result.9.如权利要求5所述的具有连锁启动的水电厂故障录波系统，其特征在于，所述网络数据交换设备为交换机。9 . The fault recording system for hydropower plants with chain start according to claim 5 , wherein the network data exchange device is a switch. 10 .

Images