CN114137930A - Test system and method for regional stability control system - Google Patents
Test system and method for regional stability control system Download PDFInfo
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Abstract
The invention provides a test system and a test method for a regional stability control system, wherein the test system comprises a test host machine, a plurality of test sub-machines and a plurality of communication interface devices, the test sub-machines are connected with stability control sub-machines, one stability control sub-machine corresponds to one test sub-machine, a communication interface device is arranged in a stability control main station and each stability control substation, and the test host machine is connected with the test sub-machines through the communication interface devices. The testing method specifically comprises the steps of establishing communication between a testing host machine and a testing sub machine, selecting testing contents and formulating corresponding testing data, forwarding the testing data to a stability control sub machine through the testing sub machine, adjusting the running state of the stability control sub machine, determining a stability control strategy and a corresponding control command, collecting stability control action information by the testing sub machine, and judging a testing result according to the stability control action information by the testing host machine. The invention solves the problems of inconvenient communication and incapability of synchronous testing in the traditional testing method, and effectively improves the testing accuracy of the region stability control system.
Description
Technical Field
The invention relates to the technical field of stability control system testing, in particular to a testing system and a method for a regional stability control system.
Background
In recent years, various domestic stability control manufacturers develop special test instruments based on the in-situ stability control system, most of the instruments are software tests or weak mode tests, and can basically meet the automatic test requirements of the in-situ stability control system, but most of the stability control systems are not in the range of independent substations but are regional stability control systems formed by a plurality of substations, and the existing test method for the stability control systems is difficult to meet the test requirements of the regional stability control systems and has the problems of inconvenient communication and difficult synchronous test. And the existing stability control devices mostly adopt an HDLC protocol based on an electric power 2M channel for communication, but the existing testing devices do not have the capability of HDLC protocol analysis and communication, and testers need to perform related tests by means of private debugging tools of corresponding manufacturers when testing the stability control devices, so that the problems of incomplete test content, non-standard testing process, low testing efficiency and the like can be caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a test system and a test method for a region stability control system.
The purpose of the invention is realized by the following technical scheme:
a test method for a regional stability control system comprises the following steps:
acquiring information of a stable control master station and all stable control substations in the regional stable control system, and establishing communication connection between a test host in the stable control master station and all test submachine in the regional stable control system through communication interface equipment;
selecting test contents through the test host, setting test data corresponding to each test submachine in the regional stability control system according to the test contents through the test host, and forwarding the corresponding test data to each test submachine in the regional stability control system through the communication interface equipment by the test host;
step three, each testing sub-machine in the regional stability control system receives corresponding testing data and transmits the testing data to the corresponding stability control sub-machine, the stability control sub-machine adjusts the operation condition according to the testing data, the corresponding stability control host machine collects the operation condition information of the adjusted stability control sub-machine and transmits the operation condition information to the stability control host machine in the stability control main station, the stability control host machine in the stability control main station determines a stability control strategy according to all the received operation condition information and transmits a corresponding control command to each stability control sub-machine in the regional stability control system;
and fourthly, each stability control submachine in the regional stability control system operates and adjusts according to the received control command, each testing submachine acquires stability control action information of the corresponding stability control submachine in real time and feeds the stability control action information back to the testing host, and the testing host judges a testing result according to the stability control action information of the stability control submachine and outputs the testing result.
Further, the specific process of the test host computer performing the test result determination according to the stability control action information of the stability control sub-computer in the fourth step is as follows: the test master station calls a stability control strategy corresponding to test contents, the test host machine predicts the stability control action of each stability control submachine according to the stability control strategy, the test host machine compares the received stability control action information of each stability control submachine with the corresponding predicted stability control action, if the stability control action information of one stability control submachine is inconsistent with the predicted stability control action, the operation of the regional stability control system is in a problem, and if the stability control action information of each stability control submachine is consistent with the predicted stability control action, the regional stability control system operates normally.
Furthermore, after the communication connection between the testing host machine in the stable control master station and all the testing sub-machines in the regional stable control system is established through the communication interface equipment in the step one, the communication content and the interface mode are regulated through a uniform stable control communication protocol, and the protocol conversion of the communication content is carried out through the communication interface equipment.
Further, the stability control communication protocol is an HDLC protocol.
Further, data transmission between the stable control host machines and data communication between the stable control host machines and the stable control sub machines are both in a frame transmission mode, and the stable control host machines distinguish operation public information data frames and control command message frames according to message heads of each frame of data.
The utility model provides a test system for regional steady control system, includes test host computer, a plurality of test submachine and a plurality of communication interface equipment, the test host computer sets up in steady accuse master station, the test submachine is connected with steady accuse submachine, and steady accuse submachine corresponds a test submachine, all is provided with a communication interface equipment in steady accuse master station and every steady accuse sub-station, the test host computer passes through communication interface equipment with the test submachine and is connected, the test host computer is used for selecting test content and formulating test data, communication interface equipment is used for retransmitting test data to the test submachine, the test submachine is used for exporting the control submachine and keeps watch on in order to obtain steady accuse action information.
Further, the regional stability control system comprises a stability control main station and a plurality of stability control substations, the stability control main station and each stability control substation are internally provided with a stability control main machine and a plurality of stability control submachine, the stability control main machine in each stability control substation is connected with the stability control main machine in the stability control main station, each stability control submachine in the stability control main station and each stability control substation is connected with the corresponding stability control main machine, the stability control main machine in the stability control main station is used for performing regional power grid operation analysis to set a stability control strategy, the stability control main machine in the stability control substation is used for collecting the operation conditions of the stability control submachine and summarizing the operation conditions to the stability control main machine in the stability control main station, and the stability control main station and the stability control submachine in each stability control substation are used for executing control commands corresponding to the stability control strategy.
Furthermore, the testing host machine and the testing sub-machine in each stable control substation are in wireless communication through a power dispatching data network or a comprehensive data network, and the testing host machine and the testing sub-machine in the stable control main station are in wireless communication through an optical fiber Ethernet.
The invention has the beneficial effects that:
the test data are issued by the test host, the unified stability control strategy formulation for the regional stability control system can be realized by the stability control host in the stability control master station, and the synchronous test in the test process can be realized by respectively formulating the corresponding stability control strategy by the stability control host in each stability control substation. And each stable control submachine is provided with a test submachine, so that corresponding stable control action information can be acquired in real time, detailed detection of the regional stable control system is realized, the corresponding part of the stable control strategy can be timely positioned when a problem occurs, the fault solving efficiency of the regional stable control system is improved, and the safety of the regional stable control system is improved. The problem that communication protocols of the stability control device are different is solved through the communication interface equipment, protocol conversion is carried out through the communication interface equipment, a unified HDLC protocol is adopted for communication, protocol analysis and communication can be achieved without the help of a private debugging tool of a manufacturer corresponding to the stability control device, and the testing efficiency and the standardization of a testing process are further improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic flow diagram of the present invention;
wherein: 1. the system comprises a test host, 2 a test sub-machine, 3 a communication interface device, 4 a stable control host, 5 a stable control sub-machine, 6 a stable control main station, 7 and a stable control sub-station.
Detailed Description
The invention is further described below with reference to the figures and examples.
Example (b):
a test system for an area stability control system is shown in figure 1 and comprises a test host machine 1, a plurality of test sub-machines 2 and a plurality of communication interface devices 3, wherein the test host machine 1 is arranged in a stability control main station 6, the test sub-machines 2 are connected with the stability control sub-machines 5, one stability control sub-machine 5 corresponds to one test sub-machine 2, one communication interface device 3 is arranged in each stability control main station 6 and each stability control sub-station 7, the test host machine 1 is connected with the test sub-machines 2 through the communication interface devices 3, the area stability control system comprises a stability control main station 6 and a plurality of stability control sub-stations 7, the stability control main station 6 and each stability control sub-station 7 respectively comprise a stability control host machine 4 and a plurality of stability control sub-machines 5, the stability control host machine 4 in each stability control sub-station 7 is connected with the stability control host machine 4 in the stability control main station 6, the stability control main station 6 and each stability control sub-station 7, each stability control sub-machine 5 is connected with the corresponding stability control main machine 4.
The testing host machine 1 is used for selecting testing contents and formulating testing data, the communication interface equipment 3 is used for forwarding the testing data to the testing sub machine 2, and the testing sub machine 2 is used for conducting export monitoring on the stability control sub machine 5 to obtain stability control action information. The stability control host machine 4 in the stability control master station 6 is used for conducting regional power grid operation analysis to formulate a stability control strategy, the stability control host machine 4 in the stability control substation 7 is used for collecting the operation conditions of the stability control submachine 5 and summarizing the operation conditions to the stability control host machine 4 in the stability control master station 6, and the stability control master station 6 and the stability control submachine 5 in each stability control substation 7 are used for executing control commands corresponding to the stability control strategy.
Through the communication between the test host machine 1 and the test sub-machine 2, the synchronous test of the area stability control system in the test process can be realized. And each stability control sub machine 5 is provided with one testing sub machine 2, so that the real-time monitoring of each stability control sub machine 5 can be effectively realized, and the comprehensive and accurate testing result can be ensured during testing.
The test host 1 and the test sub-machine 2 in each stable control substation 7 are in wireless communication through a power dispatching data network or a comprehensive data network, and the test host 1 and the test sub-machine 2 in the stable control main station 6 are in wireless communication through an optical fiber Ethernet.
The power dispatching data network has the advantage of convenience in networking, the regional stability control system is composed of a plurality of substations, the substations are widely distributed, the power dispatching data network can well adapt to the condition that the substations are widely distributed, and the power dispatching data network is used as a power private network, has a safety isolation function and can guarantee the safety of data transmission. If a power dispatching data network is adopted, in order to better realize data transmission in the test process, a standby 2M channel is added, and the communication between the test host machine 1 and the test sub-machine 2 can be ensured to be normally carried out.
The integrated data network also has the advantage of convenient networking, is suitable for communication among transformer substations in the regional stability control system, and needs to be added with a safety isolation device if the integrated data network is adopted so as to ensure the safety of data transmission.
Divide equally in steady accuse main website 6 and the steady accuse sub station 7 and be control room and protection cell, be provided with steady accuse main website 6 in the control room, be provided with steady accuse sub station 7 in the protection cell, traditional wireless module can not get into the protection cell, it is difficult to avoid causing not in place of data transmission, and fiber optic ethernet not only possesses the good a bit of optical signal quality, and the circuit supports control room and protection cell in getting into steady accuse main website 6, communication in the realization station that can be fine. When optical fiber Ethernet is used for in-station communication, optical fiber access is supported by additionally arranging hardware equipment, or optical fiber is accessed by using photoelectric conversion equipment.
A testing method for a regional stability control system, as shown in fig. 2, includes the following steps:
acquiring information of a stable control master station 6 and all stable control substations 7 in the regional stable control system, and establishing communication connection between a test host machine 1 in the stable control master station 6 and all test sub-machines 2 in the regional stable control system through a communication interface device 3;
selecting test contents through the test host 1, setting test data corresponding to each test submachine 2 in the regional stability control system according to the test contents through the test host 1, and forwarding the corresponding test data to each test submachine 2 in the regional stability control system through the communication interface equipment 3 through the test host 1;
step three, each testing sub-machine 2 in the regional stability control system receives corresponding testing data and transmits the testing data to a corresponding stability control sub-machine 5, the stability control sub-machines 5 carry out operation condition adjustment according to the testing data, the corresponding stability control host machines 4 collect the operation condition information of the adjusted stability control sub-machines 5 and transmit the operation condition information to the stability control host machines 4 in the stability control master station 6, the stability control host machines 4 in the stability control master station 6 determine a stability control strategy according to all the received operation condition information and send corresponding control commands to each stability control sub-machine 5 in the regional stability control system;
and fourthly, each stability control submachine 5 in the regional stability control system performs operation adjustment according to the received control command, each testing submachine 2 acquires stability control action information of the corresponding stability control submachine 5 in real time and feeds the stability control action information back to the testing mainframe 1, and the testing mainframe 1 performs testing result judgment according to the stability control action information of the stability control submachine 5 and outputs a testing result.
The test host 1 can select test contents according to test scenes, and formulated test data can be adjusted according to the test scenes, so that different test requirements of the regional stability control system can be met. The test data comprises analog quantity and output quantity, and the stability control sub-machine 5 can adjust the running state through the test data, so that the stability control strategy is verified.
The verified stability control strategy is determined by the stability control host machine 4 of the stability control master station 6, the determination of the stability control strategy depends on the overall power grid condition of the regional stability control system, the stability control strategy comprises a control command corresponding to each test submachine 2, and the stability control host machine 4 of the stability control master station 6 issues the control command of each stability control submachine 5 to the corresponding stability control submachine 5, so that the synchronous test is ensured.
In the fourth step, the specific process of the test host 1 for determining the test result according to the stability control action information of the stability control sub-machine 5 is as follows: the test master station calls a stability control strategy corresponding to test contents, the test host 1 predicts the stability control action of each stability control submachine 5 according to the stability control strategy, the test host 1 compares the received stability control action information of each stability control submachine 5 with the corresponding predicted stability control action, if the stability control action information of one stability control submachine 5 is inconsistent with the predicted stability control action, the operation of the regional stability control system is in a problem, and if the stability control action information of each stability control submachine 5 is consistent with the predicted stability control action, the regional stability control system operates normally.
By comparing the stability control action information with the predicted stability control action, the correctness of the stability control strategy can be accurately acquired, and therefore whether the regional stability control system normally operates is tested and verified. And each stability control sub-machine 5 can be monitored so as to trace the source in time when problems occur, thereby improving the fault solving efficiency of the regional stability control system.
In the first step, after the communication connection between the testing host 1 in the stable control master station 6 and all the testing submachine 2 in the regional stable control system is established through the communication interface equipment 3, the communication content and the interface mode are regulated through a uniform stable control communication protocol, and the protocol conversion of the communication content is carried out through the communication interface equipment 3.
When the test host 1 outputs test data, the output data frequency interval is unstable, and the data needs to be converted into data in a format of 2M HDB3(High Density Bipolar of Order 3 code) with a fixed sampling frequency interval for output, so that stable output is realized, and when a regional joint test is performed, the test process can be synchronized, so that the test result is more accurate.
The stable control communication protocol is an HDLC protocol.
When the HDLC protocol is used for data communication, 16 bits of CRC-CCITT (cyclic Redundancy Check) are also used for checking communication contents. Data transmission between the stable control host machine 4 and data communication between the stable control host machine 4 and the stable control submachine 5 are both in a frame transmission mode, and the stable control host machine 4 distinguishes operation public information data frames and control command message frames according to a message head of each frame of data.
The test system for the area stability control system is used for performing on-site stability control system test and stability control single machine test besides the area stability control system test.
When the local stability control system is tested, only the test host machine 1 in the test system and each test sub machine 2 in the corresponding station are used for testing.
The test host 1 simulates other stability control main stations 6 or stability control sub stations 7 to communicate with the stability control main stations or the stability control sub stations 7 for joint debugging, and the stability control strategy of the stability control system is verified through the stability control action information of the stability control sub stations 7 in the corresponding stability control system.
When single machine test is carried out, the stable control host machine 4 or the stable control submachine 5 is independently accessed, device test is carried out on the stable control host machine 4 or the stable control submachine 5, and when the single machine test is carried out, the communication interface of the stable control host machine 4 or the stable control submachine 5 is standardized.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.
Claims (8)
1. A test method for a regional stability control system is characterized by comprising the following steps:
acquiring information of a stable control master station and all stable control substations in the regional stable control system, and establishing communication connection between a test host in the stable control master station and all test submachine in the regional stable control system through communication interface equipment;
selecting test contents through the test host, setting test data corresponding to each test submachine in the regional stability control system according to the test contents through the test host, and forwarding the corresponding test data to each test submachine in the regional stability control system through the communication interface equipment by the test host;
step three, each testing sub-machine in the regional stability control system receives corresponding testing data and transmits the testing data to the corresponding stability control sub-machine, the stability control sub-machine adjusts the operation condition according to the testing data, the corresponding stability control host machine collects the operation condition information of the adjusted stability control sub-machine and transmits the operation condition information to the stability control host machine in the stability control main station, the stability control host machine in the stability control main station determines a stability control strategy according to all the received operation condition information and transmits a corresponding control command to each stability control sub-machine in the regional stability control system;
and fourthly, each stability control submachine in the regional stability control system operates and adjusts according to the received control command, each testing submachine acquires stability control action information of the corresponding stability control submachine in real time and feeds the stability control action information back to the testing host, and the testing host judges a testing result according to the stability control action information of the stability control submachine and outputs the testing result.
2. The method according to claim 1, wherein the specific process of the test host machine performing the test result determination according to the stability control action information of the stability control machine in the step four is as follows: the test master station calls a stability control strategy corresponding to test contents, the test host machine predicts the stability control action of each stability control submachine according to the stability control strategy, the test host machine compares the received stability control action information of each stability control submachine with the corresponding predicted stability control action, if the stability control action information of one stability control submachine is inconsistent with the predicted stability control action, the operation of the regional stability control system is in a problem, and if the stability control action information of each stability control submachine is consistent with the predicted stability control action, the regional stability control system operates normally.
3. The test method for the regional stability control system according to claim 1, wherein in the first step, after the communication connection between the test host in the stability control master station and all the test slaves in the regional stability control system is established through the communication interface device, the communication content and the interface mode are specified through a uniform stability control communication protocol, and protocol conversion of the communication content is performed through the communication interface device.
4. The method as claimed in claim 3, wherein the stability control communication protocol is HDLC protocol.
5. The method as claimed in claim 1, wherein the data transmission between the stability control host and the data communication between the stability control host and the stability control slave are both frame transmission, and the stability control host distinguishes the operation public information data frame and the control command message frame according to the message header of each frame of data.
6. The utility model provides a test system for regional steady control system, its characterized in that includes test host computer, a plurality of test submachine and a plurality of communication interface equipment, the test host computer sets up in steady accuse master station, the test submachine is connected with steady accuse submachine, and a steady accuse submachine corresponds a test submachine, all is provided with a communication interface equipment in steady accuse master station and every steady accuse sub-station, the test host computer passes through communication interface equipment with the test submachine and is connected, the test host computer is used for selecting test content and formulating test data, communication interface equipment is used for retransmitting test data to the test submachine, the test submachine is used for exporting to control the submachine and keeps watch on in order to obtain steady accuse action information.
7. The testing system for the regional stability control system according to claim 6, wherein the regional stability control system comprises a stability control main station and a plurality of stability control substations, each of the stability control main station and each of the stability control substations comprises a stability control main machine and a plurality of stability control submachine, the stability control main machine in each of the stability control substations is connected with the stability control main machine in the stability control main station, each of the stability control submachine in each of the stability control main station and each of the stability control substations is connected with the corresponding stability control main machine, the stability control main machine in the stability control main station is used for performing regional power grid operation analysis to formulate a stability control strategy, the stability control main machine in the stability control substation is used for collecting operation conditions of the stability control submachine and summarizing the operation conditions to the stability control main machine in the stability control main station, and the stability control submachine in each of the stability control substations are used for executing control commands corresponding to the stability control strategy.
8. The system of claim 6, wherein the testing host computer and the testing sub-machines in each stability control substation are in wireless communication through a power dispatching data network or a comprehensive data network, and the testing host computer and the testing sub-machines in the stability control main station are in wireless communication through an optical fiber Ethernet.
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