CN112180759A - Virtual simulation closed loop test system and method for power grid safety and stability control device - Google Patents
Virtual simulation closed loop test system and method for power grid safety and stability control device Download PDFInfo
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Abstract
The application discloses a virtual simulation closed loop test system and a method of a power grid safety and stability control device.A stability control simulation test master station acquires a data source from a strategy verification simulation server; the data source, comprising: fault simulation results or fault recording files; the stability control simulation test master station is used for downloading a corresponding data source to the safety and stability control device through the stability control remote test terminal in a wired and/or wireless mode; synchronous triggering of fault states is achieved by means of a time synchronization system, and an action outlet result and an action message of the safety and stability control device are fed back to a stability control simulation test master station through a stability control remote test terminal; the stability control simulation test master station realizes automatic closed-loop comparison of action results, automatically generates a test report, finally realizes dynamic whole set simulation closed-loop test of the safety and stability control device of the trans-regional and multi-plant station and realizes accident inversion through waveform playback of a fault recording file.
Description
Technical Field
The application relates to the technical field of power grid safety and stability control, in particular to a virtual simulation closed-loop test system and method of a power grid safety and stability control device.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.
The power grid safety and stability control system is characterized by wide distribution region, a plurality of stations, complex logic function of safety and stability control devices of each station, and the stability control strategies among the stations need to be coordinated and closely related, which brings great difficulty to field device inspection, strategy inspection and transmission test. The existing problems of the regular inspection and joint debugging work of the safety and stability control system are as follows: the overdue undetected rate is high, and the action refusing risk exists; the deviation exists between the fixed inspection and the joint debugging, the coverage of the joint debugging range is limited, the joint debugging efficiency is low, and the analysis and the arrangement of the debugging data take a long time; meanwhile, the testing method mainly adopts single and point-to-point manual dosage testing, and the strategy is difficult to fully verify. With the rapid development of extra-high voltage alternating current and direct current and new energy and the continuous enlargement of the scale of a power grid system, the scale of a safety and stability control system is enlarged, the adaptability of a stability control strategy is difficult to check through a rolling test, and a virtual simulation test method for the safety and stability control system is urgently needed to carry out regular inspection and joint debugging on the power grid safety and stability control system.
The current safety and stability control system test is mainly based on manual dosage test, the test mode is single body and point-to-point test, the test efficiency is low, the strategy is difficult to cooperate and test, and the strategy is difficult to verify in all aspects. The systematic test still takes the RTDS as the main, because of the limitation of the scale of the RTDS test hardware platform, the simulation model needs to be equivalent, the system after the equivalence loses the dynamic characteristic of the original system, and the test result is difficult to reflect the real condition of the system. How to effectively, reliably, completely and efficiently carry out system debugging and testing on a huge and complex safety and stability control system of a power grid, the defects of software and hardware of a stability control device are exposed as early as possible, hidden dangers brought to safe and stable operation of the power grid are avoided, and the method has a vital practical significance.
Disclosure of Invention
In order to overcome the defects of the prior art, the application provides a virtual simulation closed-loop test system and a virtual simulation closed-loop test method for a power grid safety and stability control device;
in a first aspect, the application provides a virtual simulation closed loop test system of a power grid safety and stability control device;
virtual simulation closed loop test system of electric wire netting safety and stability controlling means includes: the system comprises a strategy verification simulation server, a stability control simulation testing master station, a stability control remote testing terminal and a safety and stability control device which are communicated in sequence;
the stability control simulation test master station acquires a data source from the strategy verification simulation server; the data source, comprising: fault simulation results or fault recording files;
the stability control simulation test master station is used for downloading a corresponding data source to the safety and stability control device through the stability control remote test terminal in a wired and/or wireless mode; synchronous triggering of fault states is achieved by means of a time synchronization system, and an action outlet result and an action message of the safety and stability control device are fed back to a stability control simulation test master station through a stability control remote test terminal;
the stability control simulation test master station realizes automatic closed-loop comparison of action results, automatically generates a test report, finally realizes dynamic whole set simulation closed-loop test of the safety and stability control device of the trans-regional and multi-plant station and realizes accident inversion through waveform playback of a fault recording file.
In a second aspect, the application provides a virtual simulation closed loop test method for a power grid safety and stability control device;
the virtual simulation closed-loop test method of the power grid safety and stability control device comprises the following steps:
the stability control simulation test master station acquires a data source from the strategy verification simulation server; the data source, comprising: fault simulation results or fault recording files;
the stability control simulation test master station is used for downloading a corresponding data source to the safety and stability control device through the stability control remote test terminal in a wired and/or wireless mode; synchronous triggering of fault states is achieved by means of a time synchronization system, and an action outlet result and an action message of the safety and stability control device are fed back to a stability control simulation test master station through a stability control remote test terminal;
the stability control simulation test master station realizes automatic closed-loop comparison of action results, automatically generates a test report, finally realizes dynamic whole set simulation closed-loop test of the safety and stability control device of the trans-regional and multi-plant station and realizes accident inversion through waveform playback of a fault recording file.
Compared with the prior art, the beneficial effects of this application are:
the application discloses a virtual simulation closed loop test system and a virtual simulation closed loop test method for a safety and stability control device, the system is suitable for dynamic whole group closed loop test of a safety and stability control system of a trans-regional multi-station, and can realize waveform playback of a fault recording file and realize the function of accident inversion.
According to the method, BPA, PSASP, ADPSS fault simulation results and fault recording files (. COMTRADE) are used as data sources, a stable control remote test terminal is used for downloading corresponding fault waveform files to a safety and stability control device in a wired and wireless network communication mode, synchronous triggering of fault states of a time system is achieved by means of Beidou or GPS satellites, feedback of action outlet results and action messages of the safety and stability control device is achieved through the stable control remote test terminal, automatic closed-loop comparison of action results is achieved through setting of a stable control test master station action result comparison template, test reports are automatically generated, and finally the functions of dynamic whole-group simulation closed-loop test and accident inversion of a trans-regional and multi-plant stable control system are achieved.
The test method and the system have the key points of verifying whether the field stable control system is accurately designed and developed according to the control strategy provided by the power dispatching department and whether the installation and the deployment of the field stable control system are correct. The system aims to serve the inspection of a field stability control device and the joint debugging test of the system, realize the reliable and complete systematic test of the regional power grid stability control system and simplify the work of field testers.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic diagram of a test system according to a first embodiment of the present application;
FIG. 2 is a schematic diagram illustrating a testing process according to the present application in accordance with a first embodiment of the present application;
fig. 3 is a diagram illustrating a wired networking method according to a first embodiment of the present application;
fig. 4 illustrates a wireless networking method according to a first embodiment of the present application;
FIG. 5 is a diagram of a stability control system in a certain area according to a first embodiment of the present application;
FIG. 6 is a timing diagram illustrating operation of the test result according to the first embodiment of the present application.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be understood that the terms "comprises" and "comprising", and any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Aiming at the problems that the existing regional power grid safety and stability control device mainly depends on static tests before leaving factories or simulation tests such as RTDS (real time digital system), manual dosage tests are mainly used for field joint debugging, the test mode is single and point-to-point tests, the test efficiency is low, the strategy is difficult to test in a matched mode, and comprehensive verification of the strategy is difficult to achieve. The systematic test still takes the RTDS as the main, due to the limitation of the scale of a hardware platform of the RTDS test, the simulation model needs to be equivalent, the system after the equivalence loses the dynamic characteristic of the original system, and the test result is difficult to reflect the real condition of the system; the present application proposes embodiment one and embodiment two.
Example one
The embodiment provides a virtual simulation closed loop test system of a power grid safety and stability control device;
virtual simulation closed loop test system of electric wire netting safety and stability controlling means includes: the system comprises a strategy verification simulation server, a stability control simulation testing master station, a stability control remote testing terminal and a safety and stability control device which are communicated in sequence;
the stability control simulation test master station acquires a data source from the strategy verification simulation server; the data source, comprising: fault simulation results or fault recording files;
the stability control simulation test master station is used for downloading a corresponding data source to the safety and stability control device through the stability control remote test terminal in a wired and/or wireless mode; synchronous triggering of fault states is achieved by means of a time synchronization system, and an action outlet result and an action message of the safety and stability control device are fed back to a stability control simulation test master station through a stability control remote test terminal;
the stability control simulation test master station realizes automatic closed-loop comparison of action results, automatically generates a test report, finally realizes dynamic whole set simulation closed-loop test of the safety and stability control device of the trans-regional and multi-plant station and realizes accident inversion through waveform playback of a fault recording file.
Further, the policy verification emulation server is configured to: simulation software BPA, PSASP, ADPSS and the like are adopted to output simulation data, related faults are simulated according to a control strategy of a safety and stability control device to be tested, and related voltage and current magnitude are output to a settlement result file.
The system is connected with the BPA, PSASP, ADPSS and other whole-network electromechanical electromagnetic simulation systems to realize whole-network electromechanical electromagnetic simulation; and generating test information of each plant station safety and stability control device by the simulation result, wherein the test information is analog quantity data and vector data, and transmitting the simulation result to the stability control simulation test master station.
Further, the stability control simulation test master station is configured to:
compatibility of simulation data of simulation software (such as BPA, PSASP, ADPSS and the like) is achieved, and meanwhile, a fault recording file (. COMTRADE) can be analyzed;
issuing a test command and test data to each substation stability control remote test terminal to a substation safety and stability control device to be tested;
receiving model files of safety and stability control devices of all stations uploaded by a stability control remote test terminal, analyzing the model files, forming characteristic information data by events corresponding to a pressing plate, a position signal, an action outlet contact and an information model, extracting fixed value information of the stability control device to check verification conditions of a strategy, and further setting a strategy verification action result comparison template of a safety and stability control system;
receiving action exits and message information of each plant station safety and stability control device uploaded by the stability control remote test terminal, comparing the action exits and the message information with an action result comparison template, judging whether the test process is correct or not according to the action results, and recording test data and test results;
and according to a given test report template, the test result is automatically filled in the report.
Further, the stability-controlled remote test terminal is configured to:
the wireless access and wired access networking modes are provided, the problem of secondary safety protection of the network is considered, and the two modes cannot be used simultaneously;
the system is deployed in each substation participating in testing, is connected with a stability control simulation testing master station through a network, receives a testing command and testing data sent by the stability control simulation testing master station, generates testing voltage, current, output and other data information according to the testing command and the testing data, and applies the testing voltage, current, output and other data information to each station end safety and stability control device participating in testing through a cable;
the model file and the action message of the safety and stability control device are uploaded and transmitted back to the stability control simulation test master station in a wired or wireless mode, and the action exit node of the safety and stability control device is accessed and transmitted back to the stability control simulation test master station through a cable hard contact.
The communication networking mode related to the application needs to meet the following requirements:
according to the joint debugging application requirement in the actual field engineering, two communication networking modes of the method and the system provided by the application are considered: a wired system and a wireless system.
(1) Wired networking mode: based on the electric power information intranet and the data network, the specific channel comprises an information intranet, an I-area data network, a II-area data network and a III-area data network. For the purposes of network safety and convenience of a test system, a data network of a region II is adopted, and the communication networking mode of the whole test system is built in the data network of the region II, and is shown in an attached figure 3;
(2) wireless networking mode: the 3G/4G/5G wireless network of the safety access platform forms a wireless virtual private network which is communicated with the test interface device, is used for places with the 3G/4G/5G wireless network, is not limited by the region span, can be implemented in the region with the communication network, and has a networking mode shown in figure 4.
The simulation test system adopts a closed-loop automatic control mode and consists of a stable control simulation test master station, a stable control remote test terminal and a strategy verification simulation master station.
Example two
The embodiment provides a virtual simulation closed-loop test method of a power grid safety and stability control device;
as shown in fig. 2, the virtual simulation closed-loop test method of the power grid safety and stability control device includes:
s101: the stability control simulation test master station acquires a data source from the strategy verification simulation server; the data source, comprising: fault simulation results or fault recording files;
s102: the stability control simulation test master station is used for downloading a corresponding data source to the safety and stability control device through the stability control remote test terminal in a wired and/or wireless mode; synchronous triggering of fault states is achieved by means of a time synchronization system, and an action outlet result and an action message of the safety and stability control device are fed back to a stability control simulation test master station through a stability control remote test terminal;
s103: the stability control simulation test master station realizes automatic closed-loop comparison of action results, automatically generates a test report, finally realizes dynamic whole set simulation closed-loop test of the safety and stability control device of the trans-regional and multi-plant station and realizes accident inversion through waveform playback of a fault recording file.
As one or more embodiments, in S103, a dynamic whole set of simulation closed-loop tests of the cross-regional and multi-plant safety and stability control device are implemented; the method comprises the following specific steps:
s103a 1: accessing related input, output, device model files and action messages of the safety and stability control device to a stability control remote test terminal; then, the safety and stability control device and the stability control remote test terminal realize unified time synchronization through a Beidou or GPS time synchronization system, and the stability control simulation test master station and the stability control remote test terminal are networked in a wired and wireless network mode;
s103a 2: the strategy verification simulation server adopts simulation software BPA, PSASP, ADPSS and the like to output simulation data, simulates related faults according to the control strategy of the safety and stability control device to be tested, and outputs related voltage and current quantity to a settlement result file;
providing two strategy simulation modes according to different test requirements:
mode 1: simulating the strategy through a strategy verification simulation server to generate simulation waveforms, performing simulation one by one according to a strategy table, setting i to 1, and turning to S103a 3;
mode 2: simulating the strategy by the strategy verification simulation master station to generate simulation waveforms, simulating all the strategies according to the strategy table, and turning to S103a 4;
s103a 3: simulating the ith strategy according to the strategy table, analyzing, reconfiguring and issuing the simulation data result, setting an action result comparison template through the stability control simulation test master station, and turning to S103a 5;
s103a 4: analyzing, reconfiguring and issuing all the strategy simulation data, setting action result comparison templates of all the strategies, storing the action result comparison templates into historical items according to the sequence of a strategy table, setting i to 1, executing the ith item according to the sequence, and turning to S103a 5;
s103a 5: synchronously replaying fault information;
s103a 6: returning action information;
s103a 7: and comparing and analyzing the test results.
Further, the S103a 5: synchronously replaying fault information; the method comprises the following specific steps:
the stable control simulation test master station sets action time, the stable control remote test terminal receives fault waveforms issued by the stable control simulation test master station in a wired or wireless network mode, unified time synchronization is realized through a Beidou or GPS time synchronization system, after preset time is reached, the stable control remote test terminal synchronously plays back, and voltage and current are added into the to-be-tested safety and stability control device at the same time.
Further, the S103a 6: returning action information; the method comprises the following specific steps:
and the action exit node and the action message of the safety and stability control device are fed back to the stability control simulation test master station by the stability control remote test terminal in a wired or wireless network mode.
Further, the S103a 7: comparing and analyzing the test results; the method comprises the following specific steps:
the stability control simulation testing master station receives a model file of the safety and stability control device uploaded by the stability control remote testing terminal in a wired or wireless network mode, analyzes the model file, sets a strategy verification action result comparison template of the safety and stability control device, automatically compares the result with expected action information according to a stability control device action exit contact and an action message collected by the stability control remote testing terminal, verifies the strategy execution condition and automatically generates a testing report.
As one or more embodiments, in S103, a dynamic whole set of simulation closed-loop tests of the cross-regional and multi-plant safety and stability control device are implemented; the method comprises the following specific steps:
s103a 8: judging whether the strategy is the last strategy by contrasting the strategy table, wherein i is n, and if the strategy is the last strategy, finishing the test; if the policy is not the last policy, performing corresponding operation according to a policy simulation mode, and if the policy is subjected to simulation one by one according to a policy table, turning to S103a3 if i is i + 1; if all the policies are simulated according to the policy table, i is i +1, and the process goes to S103a 4.
As one or more embodiments, in S103, a dynamic whole set of simulation closed-loop tests of the cross-regional and multi-plant safety and stability control device are implemented; the method comprises the following specific steps:
and (4) combing the joint adjustment strategy table, determining the number n of the stability control strategies, determining the stability control device of the plant station to be tested, and making safety measures of the stability control device in advance.
As one or more embodiments, in S103, performing fault inversion by waveform playback of a fault recording file; the method comprises the following specific steps:
s103b 1: accessing related input, output, device model files and action messages of the safety and stability control device to a stability control remote test terminal; then, the test system realizes unified time synchronization through a Beidou or GPS time synchronization system;
s103b 2: setting a stability control simulation test main station: analyzing, reconfiguring and issuing fault recording files of all strategies needing to be played back, setting an action result comparison template according to an actual action result of the safety and stability control device during fault, storing the action result comparison template into a historical item, and setting i to be 1;
s103b 3: executing the ith item in the history items;
s103b 4: synchronously replaying fault information;
s103b 5: returning action information;
s103b 6: and comparing and analyzing the test results.
As one or more embodiments, in S103, performing fault inversion by waveform playback of a fault recording file; the method comprises the following specific steps:
according to the action result of the stability control strategy, collecting fault recording files related to the plant station, determining a stability control device of the plant station to be tested, making safety measures, and assuming that the strategies to be played back are m.
Further, the S103b 4: synchronously replaying fault information; the method comprises the following specific steps:
the stable control simulation test master station sets action time, the stable control remote test terminal receives fault waveforms issued by the stable control simulation test master station in a wired or wireless network mode, unified time synchronization is realized through a Beidou or GPS time synchronization system, after preset time is reached, the stable control remote test terminal synchronously plays back, and voltage and current are added into the to-be-tested safety and stability control device at the same time.
Further, the S103b 5: returning action information; the method comprises the following specific steps:
and the action exit node and the action message of the safety and stability control device are fed back to the stability control simulation test master station by the stability control remote test terminal in a wired or wireless network mode.
Further, the S103b 6: comparing and analyzing the test results; the method comprises the following specific steps:
the stability control simulation test master station receives the stability control device action exit contact and the action message acquired by the stability control remote test terminal in a wired or wireless network mode, automatically compares the result with the expected action information, verifies the strategy execution condition and automatically generates a test report.
As one or more embodiments, in S103, performing fault inversion by waveform playback of a fault recording file; the method comprises the following specific steps:
s103b 7: judging whether the strategy is the last strategy, i is m, if so, ending the test; if the policy is not the last policy, the corresponding operation is performed in a policy simulation manner, and then the process goes to S103b3, where i is i + 1.
According to the joint debugging application requirement in the actual field engineering, two communication networking modes are considered: wired and wireless systems:
(1) wired networking mode: based on the electric power information intranet and the data network, the specific channel comprises an information intranet, an I-area data network, a II-area data network and a III-area data network. For the purposes of network safety and convenience of a test system, a wired networking mode of the application adopts a data network of a region II, and the whole test system is built in the data network of the region II;
(2) wireless networking mode: the 3G/4G/5G wireless network of the safety access platform forms a wireless virtual private network, communicates with the test interface device, is used for a place with the 3G/4G/5G wireless network, is not limited by the region span, and can be implemented in an area with a communication network.
Aiming at the problems that the existing regional power grid safety and stability control system mainly depends on static tests before delivery or simulation tests such as RTDS (real time digital system) and the like, the means of field joint debugging and stability control strategy dynamic verification are not perfect, and potential hazards possibly existing in the processes of equipment installation, debugging and inspection and parameter matching are difficult to completely eliminate. Therefore, the test method designed by the application is mainly used for verifying whether the field stable control system is accurately designed and developed according to the control strategy provided by the power dispatching department and whether the installation and deployment of the field stable control system are correct. The system aims to serve the inspection of a field stability control device and the joint debugging test of the system, realize the reliable and complete system-level credibility test of the regional power grid stability control system and simplify the work of field testing personnel.
In order to meet the requirement of the whole-system synchronous detection of the safety and stability control system test, the virtual simulation test of the safety and stability control system can be developed by means of the electromechanical and electromagnetic simulation results of the whole network of BPA, PSASP and ADPSS. The special test system is adopted, the simulation result is synchronously input into different safety and stability control devices for playback test, the test is closer to the real situation of the power grid, the single test can realize the synchronous test of the whole system, and the test efficiency and accuracy can be effectively improved. The general technical scheme is shown in the attached figure 1.
The virtual simulation closed loop test method of the power grid safety and stability control device comprises the following specific implementation steps:
taking a stable control measure to cut off a dynamic whole group test of a part of units in a certain area when a certain line section of 750kV in the certain area has an N-1 fault to cause the section to be disconnected, wherein the structure diagram of a station related to the test is shown in the attached figure 5:
1) a power system analysis integrated program (PSASP) is adopted in a strategy simulation master station, the condition of 750kV line N-1 faults (three-phase earth faults, a switch on the side A of the transformer substation is tripped after 90ms, and a switch on the side B of the transformer substation is tripped after 100 ms) is simulated in an off-line manner, and information such as related interval voltage, current magnitude and the like is output to form a simulation data file;
2) the stability control simulation test master station downloads dynamic fault data to a stability control remote test terminal, sets the running time of a normal state, the starting time of a fault state, the fault time which can really enable the safety and stability control device to act, sets an action contact used as an action test reference, and sets and selects an action contact of a next fault;
3) the testing terminals keep clocks consistent when time is measured through the GPS, after the unified action time is set, all the testing terminals simultaneously output data (voltage, current analog quantity and the like) issued by a remote testing master station, and the data are used as sampling input of a stability control device to synchronously test the stability control system, and the action result of the stability control system is as follows:
a) t is 0ms, and a three-phase permanent fault occurs on a section of a certain 750kV line;
b) when t is 90ms, the fault side switch is disconnected; when t is 100ms, the opposite side switch is tripped;
c) when t is 111ms, the 220kV stability control device in the transformer substation A receives the information of the disconnection of the line section, which is sent by the 750kV stability control device in the transformer substation B, executes the line section interruption strategy, and when t is 143ms, the 220kV stability control device in the transformer substation B sends a command for cutting out the No. 1 generator set in the thermal power plant F, the photovoltaic power plant G, the photovoltaic power plant F and the photovoltaic command in the photovoltaic power plant I;
d) the stable control devices in the thermal power plant F, the photovoltaic power station G, the photovoltaic power station F and the photovoltaic power station I successively receive the cutting command within 168-172 ms, and act to output;
the whole set of test time sequence results are shown in figure 6, so that the test of the whole stability control system can be completed by changing the test data (the output result of the strategy simulation master station) through the remote test master station by means of the wireless virtual private network, and the test result is closer to the real action condition.
4) And finally, recovering the action message of the test site stability control device through the stability control information management main station, sharing the action message to the remote test main station for testing, and then comparing the device action results, thereby verifying the reliability of software and hardware of the site stability control device, the correctness of information and channel data transmission among all the main stations and the sub stations and the correctness of strategy execution.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. Virtual simulation closed loop test system of electric wire netting safety and stability controlling means, characterized by includes: the system comprises a strategy verification simulation server, a stability control simulation testing master station, a stability control remote testing terminal and a safety and stability control device which are communicated in sequence;
the stability control simulation test master station acquires a data source from the strategy verification simulation server; the data source, comprising: fault simulation results or fault recording files;
the stability control simulation test master station is used for downloading a corresponding data source to the safety and stability control device through the stability control remote test terminal in a wired and/or wireless mode; synchronous triggering of fault states is achieved by means of a time synchronization system, and an action outlet result and an action message of the safety and stability control device are fed back to a stability control simulation test master station through a stability control remote test terminal;
the stability control simulation test master station realizes automatic closed-loop comparison of action results, automatically generates a test report, finally realizes dynamic whole set simulation closed-loop test of the safety and stability control device of the trans-regional and multi-plant station and realizes accident inversion through waveform playback of a fault recording file.
2. The system of claim 1, wherein the policy validation emulation server is configured to: simulation data are output by adopting simulation software, related faults are simulated according to a control strategy of a safety and stability control device to be tested, and related voltage and current magnitude are output to a settlement result file;
realizing the electromechanical and electromagnetic simulation of the whole network; and generating test information of each plant station safety and stability control device by the simulation result, wherein the test information is analog quantity data and vector data, and transmitting the simulation result to the stability control simulation test master station.
3. The system of claim 1, wherein the regulated simulation test master station is configured to:
the compatibility of simulation data of simulation software is realized, and meanwhile, a fault recording file can be analyzed;
issuing a test command and test data to each substation stability control remote test terminal to a substation safety and stability control device to be tested;
receiving model files of safety and stability control devices of all stations uploaded by a stability control remote test terminal, analyzing the model files, forming characteristic information data by events corresponding to a pressing plate, a position signal, an action outlet contact and an information model, extracting fixed value information of the stability control device to check verification conditions of a strategy, and further setting a strategy verification action result comparison template of a safety and stability control system;
receiving action exits and message information of each plant station safety and stability control device uploaded by the stability control remote test terminal, comparing the action exits and the message information with an action result comparison template, judging whether the test process is correct or not according to the action results, and recording test data and test results;
and according to a given test report template, the test result is automatically filled in the report.
4. The system of claim 1, wherein the regulated remote test terminal is configured to:
the wireless access and wired access networking modes are provided, the problem of secondary safety protection of the network is considered, and the two modes cannot be used simultaneously;
the system is deployed in each substation participating in testing, is connected with a stability control simulation testing master station through a network, receives a testing command and testing data sent by the stability control simulation testing master station, generates testing voltage, current, output and other data information according to the testing command and the testing data, and applies the testing voltage, current, output and other data information to each station end safety and stability control device participating in testing through a cable;
the model file and the action message of the safety and stability control device are uploaded and transmitted back to the stability control simulation test master station in a wired or wireless mode, and the action exit node of the safety and stability control device is accessed and transmitted back to the stability control simulation test master station through a cable hard contact.
5. The virtual simulation closed-loop test method of the power grid safety and stability control device is characterized by comprising the following steps:
the stability control simulation test master station acquires a data source from the strategy verification simulation server; the data source, comprising: fault simulation results or fault recording files;
the stability control simulation test master station is used for downloading a corresponding data source to the safety and stability control device through the stability control remote test terminal in a wired and/or wireless mode; synchronous triggering of fault states is achieved by means of a time synchronization system, and an action outlet result and an action message of the safety and stability control device are fed back to a stability control simulation test master station through a stability control remote test terminal;
the stability control simulation test master station realizes automatic closed-loop comparison of action results, automatically generates a test report, finally realizes dynamic whole set simulation closed-loop test of the safety and stability control device of the trans-regional and multi-plant station and realizes accident inversion through waveform playback of a fault recording file.
6. The method of claim 5, wherein a dynamic full set of simulated closed loop tests of a cross-regional, multi-plant safety and stability control device is implemented; the method comprises the following specific steps:
a 1: accessing related input, output, device model files and action messages of the safety and stability control device to a stability control remote test terminal; then, the safety and stability control device and the stability control remote test terminal realize unified time synchronization through a Beidou or GPS time synchronization system, and the stability control simulation test master station and the stability control remote test terminal are networked in a wired and wireless network mode;
a 2: the strategy verification simulation server adopts simulation software BPA, PSASP, ADPSS and the like to output simulation data, simulates related faults according to the control strategy of the safety and stability control device to be tested, and outputs related voltage and current quantity to a settlement result file;
providing two strategy simulation modes according to different test requirements:
mode 1: simulating the strategy through a strategy verification simulation server to generate simulation waveforms, performing simulation one by one according to a strategy table, setting i to be 1, and turning to a 3;
mode 2: simulating the strategy by the strategy verification simulation master station to generate a simulation waveform, simulating all the strategies according to the strategy table, and turning to a 4;
a 3: simulating the ith strategy according to the strategy table, analyzing, reconfiguring and issuing the simulation data result, setting an action result comparison template through a stability control simulation test master station, and turning to a 5;
a 4: analyzing, reconfiguring and issuing all strategy simulation data, setting action result comparison templates of all strategies, storing the action result comparison templates into historical items according to the sequence of a strategy table, setting i to 1, executing the ith item according to the sequence, and turning to a 5;
a 5: synchronously replaying fault information;
a 6: returning action information;
a 7: and comparing and analyzing the test results.
7. The method as claimed in claim 6, wherein said a 5: synchronously replaying fault information; the method comprises the following specific steps:
the method comprises the steps that an action time is set by a stability control simulation test master station, a stability control remote test terminal receives a fault waveform issued by the stability control simulation test master station in a wired or wireless network mode, unified time synchronization is realized through a Beidou or GPS time synchronization system, after a preset time is reached, the stability control remote test terminal synchronously plays back, and the voltage and current are added into a to-be-tested safety and stability control device at the same time;
alternatively, the first and second electrodes may be,
the a 6: returning action information; the method comprises the following specific steps:
the action exit node and the action message of the safety and stability control device are fed back to the stability control simulation test master station by the stability control remote test terminal in a wired or wireless network mode;
alternatively, the first and second electrodes may be,
the a 7: comparing and analyzing the test results; the method comprises the following specific steps:
the stability control simulation testing master station receives a model file of the safety and stability control device uploaded by the stability control remote testing terminal in a wired or wireless network mode, analyzes the model file, sets a strategy verification action result comparison template of the safety and stability control device, automatically compares the result with expected action information according to a stability control device action exit contact and an action message collected by the stability control remote testing terminal, verifies the strategy execution condition and automatically generates a testing report;
alternatively, the first and second electrodes may be,
the dynamic whole set of simulation closed loop test of the trans-regional and multi-station safety and stability control device is realized; the method comprises the following specific steps:
a 8: judging whether the strategy is the last strategy by contrasting the strategy table, wherein i is n, and if the strategy is the last strategy, finishing the test; if the strategy is not the last strategy, corresponding operation is carried out according to a strategy simulation mode, if the strategy is simulated one by one according to a strategy table, i is i +1, and the operation is switched to a 3; if all policies are simulated according to the policy table, i is i +1, and the process goes to a 4.
8. The method according to claim 6, wherein in S103, fault inversion is realized by waveform playback of a fault recording file; the method comprises the following specific steps:
b 1: accessing related input, output, device model files and action messages of the safety and stability control device to a stability control remote test terminal; then, the test system realizes unified time synchronization through a Beidou or GPS time synchronization system;
b 2: setting a stability control simulation test main station: analyzing, reconfiguring and issuing fault recording files of all strategies needing to be played back, setting an action result comparison template according to an actual action result of the safety and stability control device during fault, storing the action result comparison template into a historical item, and setting i to be 1;
b 3: executing the ith item in the history items;
b 4: synchronously replaying fault information;
b 5: returning action information;
b 6: and comparing and analyzing the test results.
9. The method of claim 8, wherein fault inversion is achieved by waveform playback of a fault recording file; the method comprises the following specific steps:
according to the action result of the stability control strategy, collecting fault recording files related to the plant station, determining a stability control device of the plant station to be tested, making safety measures, and assuming that the strategies to be played back are m;
alternatively, the first and second electrodes may be,
the b 4: synchronously replaying fault information; the method comprises the following specific steps:
the method comprises the steps that an action time is set by a stability control simulation test master station, a stability control remote test terminal receives a fault waveform issued by the stability control simulation test master station in a wired or wireless network mode, unified time synchronization is realized through a Beidou or GPS time synchronization system, after a preset time is reached, the stability control remote test terminal synchronously plays back, and the voltage and current are added into a to-be-tested safety and stability control device at the same time;
alternatively, the first and second electrodes may be,
the b 5: returning action information; the method comprises the following specific steps:
the action exit node and the action message of the safety and stability control device are fed back to the stability control simulation test master station by the stability control remote test terminal in a wired or wireless network mode;
alternatively, the first and second electrodes may be,
the b 6: comparing and analyzing the test results; the method comprises the following specific steps:
the stability control simulation test master station receives the stability control device action exit contact and the action message acquired by the stability control remote test terminal in a wired or wireless network mode, automatically compares the result with the expected action information, verifies the strategy execution condition and automatically generates a test report.
10. The method of claim 8, wherein fault inversion is achieved by waveform playback of a fault recording file; the method comprises the following specific steps:
b 7: judging whether the strategy is the last strategy, i is m, if so, ending the test; if the policy is not the last policy, corresponding operations are performed in a policy simulation mode, and then the process goes to b3, where i is i + 1.
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