CN102004849A - Offline simulation system based power system simulation test method - Google Patents
Offline simulation system based power system simulation test method Download PDFInfo
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Abstract
The invention relates to an offline simulation system power system simulation test method, including that: (1) an offline simulation system is run on a computer, a power system simulation model is built, and simulation data files of the simulation model recording voltage and current data under different operational conditions are acquired; (2) a data format conversion tool is utilized to convert the data format of the simulation data file into a format required by a digital-analog conversion device, and data is screened, so as to meet different test requirements; (3) the digital-analog conversion device is utilized to convert simulation data into a real analog signal; (4) the voltage and current signals are sent to a device to be tested, test is carried out, test result is sent out in switching value form, and the switching value is acquired and recorded by a digital input acquisition device, thus completing test. The invention has the advantages that no real-time simulation calculation is required, simulation accuracy is high, simulation system is convenient to modify and expand, cost is low, operation is easy and applicability is strong.
Description
Technical field
The present invention relates to a kind of electric system simulation method of testing, especially a kind of electric system simulation method of testing based on off-line emulation system.
Background technology
The method that protection that electric system is used or control device are tested mainly contains based on the test of physical simulation system with based on the test of real-timedigital simulation system.Wherein comprise that based on the testing scheme of physical simulation system dynamic simulant test and static simulation test two classes, the difference of the two mainly is whether comprise rotary part models such as generator, motor in institute's system for simulating.Dynamic similation comprises generator model, and the operating mode of analog electrical power system operation is simulated electric system electromagnetism, electromechanical transient process preferably more truly, becomes one of important means of electric system test.Static cell is all adopted in static simulation, and except the simulation that can't carry out generator failure simulation, electromechanical transient process, system has similar performance with dynamic model, also belongs to the category of static simulation test based on the testing scheme of relay-protection tester.The physical simulation testing scheme all exists characteristics such as cost is higher, occupied ground is big, wiring is complicated, the plant maintenance workload is bigger, and in recent years, the digital real-time emulation test had obtained more application gradually.
The digital real-time emulation system is representative with RTDS, by the Digital Simulation calculation mode the various operation conditionss of electric system are carried out real-time analytical calculation, the data that produce offer device to be measured through links such as D/A, power amplifications, the result of the action of device to be measured is fed back to analogue system with the form of switching value again, finishes test real-time, closed loop.Compare with the physical simulation test, real-timedigital simulation have take up an area of little, system extension is revised easily, model accurately, advantages such as perfect in shape and function, but its expensive cost, the personnel of manipulating are required characteristics such as height also limited the popularization and application of such method of testing.
The Power System Off-line analogue system has and advantage such as is widely used, realistic model is easy to revise, simulation calculation result is accurate, bringing into play important effect aspect the Operation of Electric Systems rule researching and analysing, but less in the application of aspects such as power test at present, because they do not possess functions such as real-time computing and support closed loop test.If can resolve the problem of this two aspect, can carry out the real-time closed loop test of electric system based on off-line emulation system fully.
Summary of the invention
For overcoming above-mentioned the deficiencies in the prior art, the invention provides a kind of electric system simulation method of testing based on off-line emulation system, for off-line emulation system being applied to electric system closed loop test field, in off-line emulation system, set in advance the different running statuses and the duration of various states according to test request, obtain recording voltage, the data file of current sampling data, the data that adopt the Data Format Transform instrument that simulation software is generated are converted to number-digital-to-analog conversion apparatus can the recognition data form, control number-digital-to-analog conversion apparatus synchronous working, obtain the required true electric parameters of electric system test, this electric parameters is exported to device to be measured, import the result of the action that harvester writes down device to be measured by digital quantity, finish the method for electric system test.
The objective of the invention is to adopt following technical proposals to realize:
A kind of electric system simulation method of testing based on off-line emulation system may further comprise the steps:
The first step: move off-line emulation system on computers, in off-line emulation system, build the electric system simulation model, according to test request, the running status of realistic model is controlled, obtain voltage, the current simulations data of realistic model under different running statuses;
Second step: by the Data Format Transform instrument, the data layout in the emulated data file is put in order, to satisfy of the requirement of number-digital-to-analog conversion apparatus to the data form; And according to testing requirement emulated data is screened, choose the emulated data that needs;
The 3rd step: reduced data is delivered to number-digital-to-analog conversion apparatus, emulated data is converted to the real simulated amount, pass through power amplification unit again, form and consistent voltage, the current signal of practical power systems mutual inductor secondary side output, use for test; Use many number-digital-to-analog conversion apparatus if desired, must guarantee all conversion equipment synchronous workings;
The 4th goes on foot: the voltage, the current signal that form are delivered in the device to be tested carried out test, the test result of device to be tested is sent with the form of switching value, is gathered and record by digital quantity input harvester, finishes test.
In the described first step according to test request, running status to realistic model in off-line emulation system is controlled, promptly pre-set the duration of simulation process and each process, make it the action delay intrinsic with device to be measured, the action delay of adjust time-delay and isolating switch matches, just can be on the basis of off-line emulation system, realize in advance and the consistent process of real-time simulation test, provide possibility for realizing the closed loop test function;
During emulation, uptime t1 is set earlier, estimate average actuation time of the t2 of device to be measured, intrinsic trip time and the arc extinction time t3 of isolating switch, with this duration as system failure state, in off-line emulation system by time element control fault point switch and isolating switch model minute, close state, finish the generation of malfunction and the simulation of isolation;
The working time of system can be according to the time-delay t4 and consider that the intrinsic combined floodgate time-delay t5 of isolating switch is provided with of adjusting of reclosing after the fault isolation, become "on" position by the isolating switch model in the time element control analogue system by gate-dividing state again, running status after the action of simulation reclosing, be t6 working time;
If simulation transient fault state then makes the trouble spot disappear, the control analogue system enters normal operating condition, if simulation permanent fault state then makes the trouble spot exist, the control analogue system reenters malfunction;
Like this, the data that off-line emulation system obtains comprise the electrical quantity sampling value of state four-stage behind normal operating condition, fault persistent state, fault isolation state and the reclosing, can satisfy the requirement of electric system closed loop test.
Data Format Transform instrument in described second step can be automatically converted to the data that off-line emulation system produces the data layout that number-digital-to-analog conversion apparatus requires, and according to the needs of dissimilar tests emulated data is screened.
Number-digital-to-analog conversion apparatus in described the 3rd step is the sampled value that data file write down to be converted to device corresponding, the real simulated signal, and this device is number-mould conversion integrated circuit board or relay-protection tester.Adopt number-digital-to-analog conversion apparatus to should be noted that three problems: the first, the amplitude of the simulating signal of output and power.Generally speaking, the analog quantity amplitude and the power of the output of number-mould conversion integrated circuit board are all lower, can't satisfy the needs of electric system test, need to increase power amplification unit this moment, improve the amplitude and the power of output analog quantity.The second, the frequency band range of output signal.When carrying out the electric system test; except using power frequency component; also can use high-frequency signal, conventional number-mould conversion integrated circuit board or relay-protection tester do not possess the ability of output high-frequency signal, need to use the number-digital-to-analog conversion apparatus with output high-frequency signal ability.The 3rd; for fairly large electric system is tested; may need to adopt polylith number-mould conversion integrated circuit board or many relay-protection testers, polylith number-mould is changed integrated circuit board or many necessary synchronous workings of relay-protection tester at this moment, just can guarantee to export the synchronism of simulating signal.
Digital quantity input harvester in described the 4th step is a digital quantity input analog input card; also can be to write down the miscellaneous equipment of digital quantity state variation such as the switching input module of relay-protection tester, its objective is the moment that accurately to write down external digital amount state variation.
The present invention adopts off-line emulation system to produce the required various data of electric system test, use number-digital-to-analog conversion apparatus to obtain the real simulated signal, use digital quantity input harvester writes down the result of the action of tested device, compares with existing similar technology to have following advantage:
1. compare with test macro based on physical simulation, have that model parameter is accurate, simulation result accurately, that emulate system architecture is revised is convenient, analogue system is easy to expansion, floor area is little, maintenance workload is little, wiring is simplified, manipulate advantages such as easy;
2. compare with test macro based on real-timedigital simulation, have need not to carry out real-time simulation calculating, cost lower, manipulate advantages such as easy, that maintenance workload is little;
3. compare with existing signal generation apparatus, have output signal true, easy to use, be easy to realize advantages such as closed loop test;
4. this system suitability is good, allows to use dissimilar off-line simulation computing systems, has reduced the restriction of test macro to employed simulation calculation system type.
Description of drawings
Fig. 1 is an electric system simulation model structure synoptic diagram;
Fig. 2 is that simulation time is provided with synoptic diagram in the off-line emulation system;
Fig. 3 adopts number-mould conversion integrated circuit board and power amplification unit to form the electric system testing scheme synoptic diagram of analog quantity;
Fig. 4 adopts the protection tester to form the electric system testing scheme synoptic diagram of analog quantity.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
1. carrying out electric system simulation based on off-line emulation system calculates
Adopt Power System Off-line analogue system such as ATP/EMTP, PASCAD/EMTDC, Matlab etc.; build corresponding electric power system model according to testing requirement; as shown in Figure 1, this model is to test the model of the both-end Power supply belt list back transmission line of building for carrying out power system fault analysis and protective relaying device.The running status of this model and the duration of different running statuses are carried out control setting, the duration of each state as shown in Figure 2, be provided with four kinds of different running statuses of state behind normal operating condition, fault persistent state, fault isolation state and the reclosing altogether, every kind of running status all is provided with the different duration, carrying out off-line simulation after setting completed calculates, obtain writing down the data file of whole process voltage, current sampling data, this data file is generally the default form of simulation calculation software.
2. the conversion of emulated data form
In order to be converted to corresponding simulating amount signal accurately by the data that analogue system obtains, must be according to of the requirement of number-digital-to-analog conversion apparatus to the data form, the data layout that off-line emulation system produces is changed, so that number-digital-to-analog conversion apparatus can correctly be discerned and accurately conversion.In addition, when carrying out dissimilar tests, often only a part of data in the data file need be converted to analog quantity, therefore need carry out the data necessary screening, needs number-mould data converted is extracted from data file accurately.
3. utilize number-digital-to-analog conversion apparatus to form the real simulated amount
The data file that just writes down the analog quantity sampled value by above-mentioned steps obtains will obtain real voltage, current signal, must employing the sampled value in the data file can be reduced to the number-digital-to-analog conversion apparatus of real simulation amount.What the present invention adopted is number-mould conversion integrated circuit board or signal generation apparatus such as the relay-protection tester with high-speed synchronous output function.Output function can be guaranteed the synchronism of multi-analog signal output synchronously, and high-speed functions can be guaranteed the frequency band broad of output signal, can not produce distorted signals.If adopt number-mould conversion integrated circuit board, the amplitude of its output signal is less, generally in ± 10V scope, output power is also less, be generally tens watts, can't directly be loaded in the device to be measured and test, must with the power amplification unit cooperating, by adjusting the gain of power amplification unit, obtain to have the analog signals of true amplitude and enough power.If the employing relay-protection tester and since tester integrated power amplifier module, therefore need not external power amplification unit.If many relay-protection testers are worked simultaneously, can regularly trigger by GPS, mode such as switching value synchronous triggering, control many relay-protection tester synchronous workings, guarantee the synchronism of output signal.
4. the record of device being tested action message
The electric parameters of number-digital-to-analog conversion apparatus output offers device being tested, and device being tested can judge according to the variation of applying electric parameters, and reflects with forms such as switching value, pilot lamp, messages.Wherein the output of the switching value of tested device is direct reaction test result's information, must carry out record accurately.Generally speaking, configuration corresponding digital amount input integrated circuit board can write down the situation of change that device being tested is exported switching value accurately in computing machine.If adopted such as signal generation apparatus such as relay-protection testers, itself just possess the function that monitors that external switch amount location status changes, and needn't import integrated circuit board by the additional configuration digital quantity, still can adopt digital quantity input integrated circuit board certainly.By the concrete the time whether switching value of analyzing device being tested output displacement and displacement take place, just can grasp the action situation of device being tested, for performance and the characteristic of analyzing device more to be measured provides foundation.
Claims (5)
1. the electric system simulation method of testing based on off-line emulation system is characterized in that, may further comprise the steps:
The first step: move off-line emulation system on computers, in off-line emulation system, build the electric system simulation model, according to test request, the running status of realistic model is controlled, obtain voltage, the current simulations data of realistic model under different running statuses;
Second step: by the Data Format Transform instrument, the data layout in the emulated data file is put in order, to satisfy of the requirement of number-digital-to-analog conversion apparatus to the data form; And according to testing requirement emulated data is screened, choose the emulated data that needs;
The 3rd step: reduced data is delivered to number-digital-to-analog conversion apparatus, emulated data is converted to the real simulated amount, pass through power amplification unit again, form and consistent voltage, the current signal of practical power systems mutual inductor secondary side output, use for test; Use many number-digital-to-analog conversion apparatus if desired, must guarantee all conversion equipment synchronous workings;
The 4th goes on foot: the voltage, the current signal that form are delivered in the device to be tested carried out test, the test result of device under test is sent with the form of switching value, is gathered and record by digital quantity input harvester, finishes test.
2. the electric system simulation method of testing based on off-line emulation system according to claim 1, it is characterized in that: in the described first step according to test request, running status to realistic model in off-line emulation system is controlled, promptly pre-set the duration of simulation process and each process, make it the action delay intrinsic with device to be measured, the time-delay and the action delay of isolating switch of adjusting matches, just can be on the basis of off-line emulation system, realize in advance and the consistent process of real-time simulation test, provide possibility for realizing the closed loop test function;
During emulation, uptime t1 is set earlier, estimate average actuation time of the t2 of device to be measured, intrinsic trip time and the arc extinction time t3 of isolating switch, with this duration as system failure state, in off-line emulation system by time element control fault point switch and isolating switch model minute, close state, finish the generation of malfunction and the simulation of isolation;
The working time of system can be according to the time-delay t4 and consider that the intrinsic combined floodgate time-delay t5 of isolating switch is provided with of adjusting of reclosing after the fault isolation, become "on" position by the isolating switch model in the time element control off-line emulation system by gate-dividing state again, running status after the action of simulation reclosing, be t6 working time;
If simulation transient fault state then makes the trouble spot disappear, the control off-line emulation system enters normal operating condition, if simulation permanent fault state then makes the trouble spot exist, the control off-line emulation system reenters malfunction;
Like this, the data that off-line emulation system obtains comprise the electrical quantity sampling value of state four-stage behind normal operating condition, fault persistent state, fault isolation state and the reclosing, can satisfy the requirement of electric system closed loop test.
3. the electric system simulation method of testing based on off-line emulation system according to claim 1, it is characterized in that: the Data Format Transform instrument in described second step can be automatically converted to the data that off-line emulation system produces the data layout that number-digital-to-analog conversion apparatus requires, and according to the needs of dissimilar tests emulated data is screened.
4. the electric system simulation method of testing based on off-line emulation system according to claim 1; it is characterized in that: the number-digital-to-analog conversion apparatus in described the 3rd step is the sampled value that data file write down to be converted to device corresponding, the real simulated signal, and this device is number-mould conversion integrated circuit board or relay-protection tester.
5. the electric system simulation method of testing based on off-line emulation system according to claim 1 is characterized in that: the digital quantity input harvester in described the 4th step is the switching input module of digital quantity input analog input card or relay-protection tester.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051065A (en) * | 2012-12-29 | 2013-04-17 | 安徽科大智能电网技术有限公司 | Distribution-automation distributed type FA (feeder automation) linkage test method and system |
| CN103105550A (en) * | 2013-01-14 | 2013-05-15 | 湖北省电力公司电力科学研究院 | Detection method and detection system of intelligent relay protection device |
| CN103226655A (en) * | 2013-04-08 | 2013-07-31 | 清华大学 | Improved EMPT algorithm applicable to average model of PWM current transformer |
| CN103761181A (en) * | 2013-11-18 | 2014-04-30 | 芜湖大学科技园发展有限公司 | Construction method of power test environment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1385708A (en) * | 2002-04-19 | 2002-12-18 | 深圳市殷图科技发展有限公司 | Microcomputer based electric power digital dynamic realtime emulation method |
| CN1529176A (en) * | 2003-09-30 | 2004-09-15 | 昆明理工大学 | Method for detecting travelling-wave protection device |
| KR20090032570A (en) * | 2007-09-28 | 2009-04-01 | 한국전력공사 | Monitoring system using real-time simulator |
-
2010
- 2010-11-16 CN CN 201010545670 patent/CN102004849A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1385708A (en) * | 2002-04-19 | 2002-12-18 | 深圳市殷图科技发展有限公司 | Microcomputer based electric power digital dynamic realtime emulation method |
| CN1529176A (en) * | 2003-09-30 | 2004-09-15 | 昆明理工大学 | Method for detecting travelling-wave protection device |
| KR20090032570A (en) * | 2007-09-28 | 2009-04-01 | 한국전력공사 | Monitoring system using real-time simulator |
Non-Patent Citations (1)
| Title |
|---|
| 《中国博士学位论文全文数据库》 20041215 李轶群 电力系统稳定控制装置的工程化研究 第77-80页 1-5 , 2 * |
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| CN103105550B (en) * | 2013-01-14 | 2015-08-05 | 国家电网公司 | A kind of intelligent relay protection device detection method and system |
| CN103105550A (en) * | 2013-01-14 | 2013-05-15 | 湖北省电力公司电力科学研究院 | Detection method and detection system of intelligent relay protection device |
| CN103226655A (en) * | 2013-04-08 | 2013-07-31 | 清华大学 | Improved EMPT algorithm applicable to average model of PWM current transformer |
| CN103226655B (en) * | 2013-04-08 | 2016-03-09 | 清华大学 | Be suitable for the improvement EMTP algorithm of PWM converter averaging model |
| CN103761181A (en) * | 2013-11-18 | 2014-04-30 | 芜湖大学科技园发展有限公司 | Construction method of power test environment |
| CN103840559A (en) * | 2014-03-28 | 2014-06-04 | 国网上海市电力公司 | Looped network outdoor station fault simulator and fault simulation method thereof |
| CN105988048A (en) * | 2015-02-27 | 2016-10-05 | 中兴通讯股份有限公司 | Power grid abnormal waveform adaptive test method, device and system |
| CN106647697A (en) * | 2016-12-07 | 2017-05-10 | 广东电网有限责任公司电力调度控制中心 | Verification method for switching quantity input signals |
| CN110866306A (en) * | 2019-10-23 | 2020-03-06 | 中国国家铁路集团有限公司 | Train whole vehicle simulation verification method and system |
| CN111913145A (en) * | 2020-06-24 | 2020-11-10 | 南方电网科学研究院有限责任公司 | Method and device for testing measurement deviation of electronic transformer measurement system |
| CN111913145B (en) * | 2020-06-24 | 2022-09-16 | 南方电网科学研究院有限责任公司 | Method and device for testing measurement deviation of electronic transformer measurement system |
| CN112285459A (en) * | 2020-09-30 | 2021-01-29 | 清华大学 | Flexible direct current line traveling wave protection test method and computer readable storage medium |
| CN117590836A (en) * | 2024-01-18 | 2024-02-23 | 中国铁路设计集团有限公司 | Method for performing function test by using function test device of wide area protection measurement and control system |
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Application publication date: 20110406 |