CN103246283A - Closed loop testing method of power plant side automatic voltage control system - Google Patents
Closed loop testing method of power plant side automatic voltage control system Download PDFInfo
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- CN103246283A CN103246283A CN2013101818323A CN201310181832A CN103246283A CN 103246283 A CN103246283 A CN 103246283A CN 2013101818323 A CN2013101818323 A CN 2013101818323A CN 201310181832 A CN201310181832 A CN 201310181832A CN 103246283 A CN103246283 A CN 103246283A
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Abstract
The invention relates to a closed loop testing method of a power plant side automatic voltage control (AVC) system. A closed loop testing system established on a power plant side AVC system comprises a real-time digital simulation system, the power plant side AVC system and a remote terminal RTU (remote terminal unit), wherein the real-time digital simulation system models a simulation power plant actual power system and simulates a power generation system to enter a corresponding running state; the real-time digital simulation system outputs a control signal to the remote terminal RTU; the control signal is processed and converted by the remote terminal RTU; the data is sent to the power plant side AVC system; the power plant side AVC system transmits the actual control signal to a corresponding simulation element of a system platform model in the real-time digital simulation system; and after a central control system model simulates the actual control signal, the control signal is output, a closed loop is formed, and closed loop testing is realized. The functions of the power plant side AVC system are tested in real time off line, the method has an important guidance effect on the establishment of unified indexes of the power plant side AVC system, and a very good solution is provided for access test on the power plant side AVC system.
Description
Technical field
The present invention relates to a kind of power test technology, particularly a kind of Power Plant Side automatic voltage control system closed loop test method.
Background technology
Power system reactive power power optimization and compensation are the important component parts of power system security economical operation.By to the reasonable disposition of reactive power source with to the compensation of load or burden without work, not only can keep voltage levvl, improve the stability of Operation of Electric Systems, can also reduce network loss, make the power system security economical operation.Under traditional Control of Voltage management mode, the generator reactive power of generating plant, high voltage bus voltage are mainly by the require manual shift of each power station attendant according to system call.This regulative mode only can guarantee that the voltage of part period, part of nodes is qualified, but greatly differs from each other with the economical operation of electric system, the target of reliable power supply.Power plant's automatic voltage control system (AVC) is to utilize advanced electronics, network communication and automatic control technology, the busbar voltage instruction that online reception province electric power dispatching center issues is exerted oneself to generator reactive automatically or high-voltage side bus voltage carries out the real-time follow-up regulation and control.This system is the Rational flow of control area electric network reactive-load effectively, and stability and the security of the operation of enhancing system guarantee quality of voltage, improve electrical network bulk supply level, reduce the electric network active network loss, give full play to the economic benefit of electrical network, reduce operations staff's labour intensity simultaneously.
Summary of the invention
The present invention be directed to the uneconomical rational problem of Power Plant Side power scheduling, a kind of Power Plant Side automatic voltage control system closed loop test method has been proposed, the real time modelling of RTDS and the characteristic of operation with closed ring, make up the closed loop test test platform of Power Plant Side AVC system, and at this platform the method for testing of Power Plant Side AVC system is proposed, realize Power Plant Side AVC systemic-function is carried out the off-line real-time testing.
Technical scheme of the present invention is: a kind of Power Plant Side automatic voltage control system closed loop test method specifically comprises the steps:
1) set up the closed loop test system of Power Plant Side AVC system: comprise real-timedigital simulation system, Power Plant Side AVC system, remote terminal unit RTU,
The real-timedigital simulation system modelling comprises system platform model and central control system model, the system platform model is made up by the simulation power system component and finishes, this model emulation power plant practical power systems, the central control system model is made up by the The simulative running system element and finishes, by user input data and/or instruction the system platform model is simulated control, the simulation electricity generation system enters corresponding running status;
2) output of the central control system model in real-timedigital simulation system control signal, by being sent to Power Plant Side AVC system after the remote terminal unit RTU treatment conversion data, Power Plant Side AVC system passes back to the working control signal on the corresponding analog element of system platform model in the real-timedigital simulation system again, by central control system modeling operation back output control signal, form operation with closed ring again;
3) carrying out parameter according to the basic function of Power Plant Side AVC system sets test, basic function test, security feature and tests three part tests;
4) check test result.
The system platform model modeling is selected the practical power systems mode of connection in the described step 1), in the real-timedigital simulation system, build the primary system model, comprise generator model, two-winding transformer model, equivalent load model, equivalent power source model, isolating switch model, voltage transformer (VT) model, current transformer model in the primary system model.
Described step 2) monitoring unit among the remote terminal unit RTU is gathered the control analog quantity that the real-timedigital simulation system comes in real time, communication processor among the remote terminal unit RTU carries out treatment conversion to the control analog quantity, converts IEC101 stipulations data to and is sent to Power Plant Side AVC system.
Beneficial effect of the present invention is: Power Plant Side automatic voltage control system closed loop test method of the present invention makes up the closed loop test test platform of Power Plant Side AVC system, and realizes Power Plant Side AVC systemic-function is carried out the off-line real-time testing at this platform.Engineering philosophy, structural requirement, function and the performance index of setting up unified Power Plant Side AVC system there is important directive function, for the network access testing of Power Plant Side AVC system provides good solution.
Description of drawings
The closed loop test schematic diagram of the Power Plant Side AVC system that Fig. 1 provides for the embodiment of the invention;
The closed loop test hardware connection diagram of the Power Plant Side AVC system that Fig. 2 provides for the embodiment of the invention;
Fig. 3 is embodiment of the invention electric system primary system model structure synoptic diagram.
Embodiment
Closed loop test schematic diagram and the hardware connection diagram of the Power Plant Side AVC system that provides as Fig. 1, Fig. 2 embodiment, the Power Plant Side AVC System Functional Test test platform based on the real-timedigital simulation system comprises hardware structure and software modeling; Described hardware structure comprises real-timedigital simulation system, Power Plant Side AVC system, remote terminal unit RTU.
The software modeling of real-timedigital simulation system comprises system platform model and central control system model, the system platform model is made up by the simulation power system component and finishes, this model emulation power plant practical power systems, the central control system model is made up by the The simulative running system element and finishes, by user input data and/or instruction the system platform model is simulated control, make its electricity generation system enter corresponding dry run state.
Described Power Plant Side AVC system closed loop test test platform, in hardware architecture, real-timedigital simulation system output set end voltage, machine end electric current and busbar voltage analog quantity, measurement and control unit by remote terminal unit RTU is gathered in real time, treatment conversion becomes IEC101 stipulations data to be sent to the host computer of Power Plant Side AVC system in the communication processor of remote terminal unit RTU then, simultaneously, the province of Power Plant Side AVC system transfers the AVC main website to issue goal of regulation and control for the AVC substation, carry out regulation and control by the AVC sub-station device, obtain unit increase and decrease magnetic control signal processed, then control signal is passed back in the real-timedigital simulation system again, form operation with closed ring.
The system platform Model Selection generating plant electric system mode of connection, electric system primary system model structure synoptic diagram as shown in Figure 3, specifically comprise generator, two-winding transformer, equivalent circuit, equivalent power supply, etc. duty value and secondary measuring system.Positive one female Bus1 and positive two female Bus2 have been set up in the simulation system, insert two generators and two transformers respectively, the isolating switch of solid black is closed, hollow isolating switch is the state of opening, the outlet of power plant represents that with two equivalent circuits every outlet comes the simulation system operation with an equivalent power supply.Secondary measuring system comprises measuring point and measured.In the real-timedigital simulation system, set up generator model, transformer model, circuit model, power source model, load model, voltage transformer (VT) model, current transformer model.Generator model mainly arranges generator capacity, various reactance parameter, time constant, electric pressure etc.Transformer model mainly arranges the electric pressure of each side of transformer and capacity, reference frequency, leakage reactance, open circuit loss etc.; Load model is made as a variable permanent power load, according to the dynamic change that requires in the test.
System platform model establishment step:
1, newly-built system model file and preservation;
2, build generator model, steam turbine model, transformer model, isolating switch model, load model and couple together according to electrical relation;
3, finish the parameter setting of various models, the killer switch signal is set;
4, make up each generator excitation control model;
5, make up the increase and decrease magnetic control simulation of unit AVC system;
6, make up the control model of dynamic load;
7, finish building of system platform model.
The central control system model comprises to be controlled the excitation system of generator and unit AVC increase and decrease magnetic control system processed.The control of generator excited system comprises that generator increases acceptance and the steering logic of magnetic and demagnetize signal, can increase and decrease magnetic signal by manual adjustments on the one hand and realize control, and the increase and decrease magnetic that can issue by the AVC that accepts the outside instructs to realize control on the other hand; Control system can also be controlled with idle exerting oneself meritorious the exerting oneself of generator, by the user input instruction realization control of central control system.Finish after said system platform model and corresponding submodel and the parameter configuration, get final product compilation model, system's operation of emulation power plant.Unit AVC increase and decrease magnetic control system processed because the increase and decrease magnetic control signal processed of AVC system is sent into AVR simultaneously, arranges control loop and judges the increase and decrease magnetic signal.
The central control system model is the centralized control center of simulation power plant, is finished by the operating element construction of real-timedigital simulation system.But central control system model real-time display system service data, comprise meritorious/reactive power, each winding of each transformer of showing each busbar voltage, each generator meritorious/the increase and decrease magnetic signal state of reactive power, each generator etc.In addition, the phase angle of all right each generator of manual adjustments is realized exerting oneself and idle control of exerting oneself to each generator is meritorious, thereby changes the running status of electricity generation system, the increase and decrease magnetic signal of all right manual triggers generator, the validity of detection exciter control system model.
Central control system model establishment step:
1), newly-built central control system file and preservation;
2), build power plant's primary system grid structure;
3), with the busbar voltage of system platform model, generator meritorious/idlely exert oneself, circuit breaker switch state, load switching state and show in the mode of instrument or pilot lamp;
4), each killer switch is carried out modeling;
5), the dynamic load switch is carried out modeling;
6), finish building of central control system model;
7), carry out system debug, finish the whole modeling of the software section of closed loop test system.
The closed loop test step of described Power Plant Side AVC system is as follows:
1) finishes the construction of system's closed loop test platform, comprise hardware structure and software modeling two parts;
2) carrying out parameter according to the basic function of Power Plant Side AVC system sets test, basic function test, security feature and tests three part tests;
3) check test result.
By following examples as can be known, the closed loop test method of a kind of Power Plant Side AVC system can carry out every functional test to Power Plant Side AVC system to be measured, specifically comprises parameter and sets test, basic function test, security feature and test three part tests.
Embodiment one, unit reactive-load adjusting device pulse width regulation experiment: this test is set one of test for parameter.This test is set important parameters such as unit signal output gap, signal breadth extreme, signal minimum widith and slope in " idle output setting " by regulating AVC substation output pulse width, for site test and parameter tuning are accumulated experience.
No distribution of work adjusting function test between embodiment two, unit: this test is one of basic function test." busbar voltage regulation and control " mode of AVC system is set, test AVC substation each unit in adjustment process does not have the rationality of the distribution of work, namely test four kinds of distribution methods, as: constant power factor do not have the distribution of work, etc. nargin do not have the distribution of work, etc. capacity do not have the distribution of work, idle mean allocation, check the distribution effects of various idle distribution methods.
Embodiment three, unit is idle, and anti-debugging is tested: this test one of is tested for basic function.Idle out-of-limit anti-accent and the idle ability of reasonable distribution in the test AVC system adjustment process.At first set " busbar voltage regulation and control " mode, the demagnetize that sends instructions under the main website is to the idle more lower limit of unit, the idle anti-accent process of checking the AVC sub-station device.Perhaps, send instructions under the main website and increase magnetic to the idle more upper limit of unit, the idle anti-accent process of checking the AVC sub-station device.
Embodiment four, the anti-debugging of unit voltage are tested: this test is one of basic function test.The out-of-limit anti-accent of set end voltage and the idle ability of reasonable distribution in the test AVC sub-station device adjustment process.At first set " busbar voltage regulation and control " mode, demagnetize to the unit set end voltage that sends instructions under the main website is got over lower limit, checks the anti-process of transferring of voltage of AVC sub-station device.Perhaps, demagnetize to the unit set end voltage that sends instructions under the main website is got over the upper limit, checks the anti-process of transferring of voltage of AVC sub-station device.
Embodiment five, AVC main website and the test of AVC substation communication disruption: this test is one of security feature test.When test AVC main website and substation communication disruption, the action situation of AVC sub-station device.Method is the wiring that disconnects between AVC main website and the sub-station device, checks the action of AVC sub-station device then.
Embodiment six, AVC substation and the test of RTU communication disruption: this test is one of security feature test.Test AVC sub-station device is communicated by letter when interrupting fully with RTU, checks the action situation of AVC sub-station device.Method is to disconnect the host computer of AVC substation and the wiring between the RTU communication processor, checks the action of AVC sub-station device then.
Embodiment seven, locking test: this test is one of security feature test.The action situation of test AVC sub-station device when detecting telemetry and exceed the locking restriction.Mainly comprise the busbar voltage unit meritorious/telemetry lockings such as idle, set end voltage, machine end electric current, station service.
Claims (3)
1. a Power Plant Side automatic voltage control system closed loop test method is characterized in that, specifically comprises the steps:
1) set up the closed loop test system of Power Plant Side AVC system: comprise real-timedigital simulation system, Power Plant Side AVC system, remote terminal unit RTU,
The real-timedigital simulation system modelling comprises system platform model and central control system model, the system platform model is made up by the simulation power system component and finishes, this model emulation power plant practical power systems, the central control system model is made up by the The simulative running system element and finishes, by user input data and/or instruction the system platform model is simulated control, the simulation electricity generation system enters corresponding running status;
2) output of the central control system model in real-timedigital simulation system control signal, by being sent to Power Plant Side AVC system after the remote terminal unit RTU treatment conversion data, Power Plant Side AVC system passes back to the working control signal on the corresponding analog element of system platform model in the real-timedigital simulation system again, by central control system modeling operation back output control signal, form operation with closed ring again;
3) carrying out parameter according to the basic function of Power Plant Side AVC system sets test, basic function test, security feature and tests three part tests;
4) check test result.
2. according to the described Power Plant Side automatic voltage control system of claim 1 closed loop test method, it is characterized in that, the system platform model modeling is selected the practical power systems mode of connection in the described step 1), in the real-timedigital simulation system, build the primary system model, comprise generator model, two-winding transformer model, equivalent load model, equivalent power source model, isolating switch model, voltage transformer (VT) model, current transformer model in the primary system model.
3. according to the described Power Plant Side automatic voltage control system of claim 1 closed loop test method, it is characterized in that, described step 2) monitoring unit among the remote terminal unit RTU is gathered the control analog quantity that the real-timedigital simulation system comes in real time, communication processor among the remote terminal unit RTU carries out treatment conversion to the control analog quantity, converts IEC101 stipulations data to and is sent to Power Plant Side AVC system.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283215A (en) * | 2014-10-29 | 2015-01-14 | 上海电力学院 | Detection and test method and device of intelligent distributed power distribution terminal |
| CN105974819A (en) * | 2016-04-29 | 2016-09-28 | 广东电网有限责任公司电力调度控制中心 | Fault point control method and system for power real-time digital simulation system |
| CN110262455A (en) * | 2019-06-26 | 2019-09-20 | 南方电网科学研究院有限责任公司 | Test method, device and the equipment of power station automatic electricity generation control system control characteristic |
| CN110632410A (en) * | 2019-08-19 | 2019-12-31 | 国网湖南省电力有限公司 | Intelligent debugging system for automatic equipment of intelligent substation and application method thereof |
| CN110765616A (en) * | 2019-10-24 | 2020-02-07 | 南方电网科学研究院有限责任公司 | Simulation closed loop test system and method for power plant computer monitoring system |
| CN112015162A (en) * | 2020-08-03 | 2020-12-01 | 国网山东省电力公司电力科学研究院 | Hardware-in-loop test system and method for reactive voltage control system of new energy station |
| CN114123321A (en) * | 2021-11-19 | 2022-03-01 | 广东电网有限责任公司 | New energy grid-connected test system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202798014U (en) * | 2012-08-21 | 2013-03-13 | 广东明阳风电产业集团有限公司 | Topological structure for wind power station grid connection control |
| CN102981500A (en) * | 2012-11-27 | 2013-03-20 | 四川电力科学研究院 | Testing platform for regional power grid automatic voltage control (AVC) system function tests based on real time digital simulator (RTDS) and construction method of testing platform |
-
2013
- 2013-05-16 CN CN2013101818323A patent/CN103246283A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202798014U (en) * | 2012-08-21 | 2013-03-13 | 广东明阳风电产业集团有限公司 | Topological structure for wind power station grid connection control |
| CN102981500A (en) * | 2012-11-27 | 2013-03-20 | 四川电力科学研究院 | Testing platform for regional power grid automatic voltage control (AVC) system function tests based on real time digital simulator (RTDS) and construction method of testing platform |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104283215A (en) * | 2014-10-29 | 2015-01-14 | 上海电力学院 | Detection and test method and device of intelligent distributed power distribution terminal |
| CN105974819A (en) * | 2016-04-29 | 2016-09-28 | 广东电网有限责任公司电力调度控制中心 | Fault point control method and system for power real-time digital simulation system |
| CN105974819B (en) * | 2016-04-29 | 2018-11-09 | 广东电网有限责任公司电力调度控制中心 | The fault point control method and system of electric power real time data display |
| CN110262455A (en) * | 2019-06-26 | 2019-09-20 | 南方电网科学研究院有限责任公司 | Test method, device and the equipment of power station automatic electricity generation control system control characteristic |
| CN110632410A (en) * | 2019-08-19 | 2019-12-31 | 国网湖南省电力有限公司 | Intelligent debugging system for automatic equipment of intelligent substation and application method thereof |
| CN110632410B (en) * | 2019-08-19 | 2021-10-01 | 国网湖南省电力有限公司 | Intelligent debugging system for automatic equipment of intelligent substation and application method thereof |
| CN110765616A (en) * | 2019-10-24 | 2020-02-07 | 南方电网科学研究院有限责任公司 | Simulation closed loop test system and method for power plant computer monitoring system |
| CN112015162A (en) * | 2020-08-03 | 2020-12-01 | 国网山东省电力公司电力科学研究院 | Hardware-in-loop test system and method for reactive voltage control system of new energy station |
| CN112015162B (en) * | 2020-08-03 | 2021-11-09 | 国网山东省电力公司电力科学研究院 | Hardware-in-loop test system and method for reactive voltage control system of new energy station |
| CN114123321A (en) * | 2021-11-19 | 2022-03-01 | 广东电网有限责任公司 | New energy grid-connected test system |
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Application publication date: 20130814 |