CN201611448U - Closed loop test platform of control protection device in electrical power system - Google Patents
Closed loop test platform of control protection device in electrical power system Download PDFInfo
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- CN201611448U CN201611448U CN2009202454287U CN200920245428U CN201611448U CN 201611448 U CN201611448 U CN 201611448U CN 2009202454287 U CN2009202454287 U CN 2009202454287U CN 200920245428 U CN200920245428 U CN 200920245428U CN 201611448 U CN201611448 U CN 201611448U
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Abstract
本实用新型一种电力系统控制保护装置的闭环试验平台，包括：工作终端、计算单元、物理接口装置、功率放大器、实际控制保护装置、辅助试验工具；所述工作终端通过千兆以太网与计算单元双向连接；所述计算单元与物理接口装置双向连接；所述物理接口装置与控制保护装置双向连接，所述物理接口装置与控制保护装置之间如果需要可以接入功率放大器对电压电流进行线性放大；从功率放大器和控制保护装置可以向辅助试验设备单向传送信号。基于该平台能够实现大规模电力系统的实时仿真计算，通过物理装置接口可以将电力系统实际控制保护设备接入数字仿真系统进行闭环试验。解决了电磁暂态计算仿真规模较小，边界需要等值等限制，并实现了与实际控制保护装置的AI、AO、DI、DO等接口，提供了一种新的试验平台模式。
The utility model relates to a closed-loop test platform of a power system control and protection device, comprising: a working terminal, a computing unit, a physical interface device, a power amplifier, an actual control and protection device, and auxiliary test tools; The unit is bidirectionally connected; the calculation unit is bidirectionally connected to the physical interface device; the physical interface device is bidirectionally connected to the control and protection device, and if necessary, a power amplifier can be connected between the physical interface device and the control and protection device to linearize the voltage and current. Amplification; from the power amplifier and the control protection device, the signal can be transmitted to the auxiliary test equipment in one direction. Based on this platform, the real-time simulation calculation of large-scale power system can be realized, and the actual control and protection equipment of the power system can be connected to the digital simulation system through the physical device interface for closed-loop test. It solves the limitations of the small simulation scale of electromagnetic transient calculation and the boundary needs to be equivalent, and realizes the AI, AO, DI, DO and other interfaces with the actual control protection device, providing a new test platform mode.
Description
Technical field
The present invention relates to a kind of closed test platform of electric power system control protective device.
Background technology
Because the expansion of interconnected network scale; all kinds of quick control and protective device are widely applied in electrical network; be used to ensure the safe and stable operation of electric system; as protective relaying device, excitation controlling device, FACTS (Flexible ACTransmission System, FACTS) control device, monitoring safety and stability device etc.
For the control protective device, in work such as each stage such as exploitation, production and operation all need to debug, adjust, the function of demo plant and performance, the calibrating installation parameter, common test method comprises open loop test and closed test.The default voltage/current amounts of equipment output such as general electrification system relay-protection tester are tested in open loop, and the output characteristics of observing the control protective device, and then judgment means operate as normal whether.Open loop test is simple, and static input-output characteristic that can proving installation is extensive use of in electric system; Yet the open loop test can not reflect the dynamic perfromance of controlling protective device, and along with the control strategy of electric power system control protective device is increasingly sophisticated, simple open loop test can't be satisfied the test needs.Closed test is many to carry out in the dynamic simulation experiment chamber, the operation of simulation practical power systems, and will control the protective device connecting system.Closed test can comparatively comprehensively be tested function, the performance of control protective device, and positive role is played in operation to power system stability; But the investment of dynamic simulation experiment chamber is bigger, and modeling and process of the test complexity, needs a large amount of maintenance works.
In recent years; control protective device closed test platform based on all-digital real-time simulation system is applied gradually; this platform adopts digital simulation method simulation practical power systems; to control protective device by numeral-physical simulation interface and insert analogue system, thereby the control protective device will be carried out closed test.With compare based on the closed test of dynamic simulation experiment chamber; this platform investment is less; modeling and test simple and flexible; obtained very fast development; protective relaying device closed test platform, field regulator closed test platform, DC control protective device closed test platform etc. have been set up as more domestic and international units based on RTDS (Real Time Digital Simulator, real-timedigital simulation device).But this type of test platform is limited to a certain specific control protective device more, can't carry out closed test to dissimilar control protective devices neatly; And this type of test platform limits by RTDS self, and the grid simulation scale is less, can't carry out accurate emulation to extensive interconnected network.
The Northwest Grid development in recent years is rapid; unique 330kV/750kV electric pressure grid structure forms gradually; new forms of energy such as wind-powered electricity generation, sun power are built in a large number; HVDC (High Voltage DC; D.C. high voltage transmission), FACTS equipment also constantly is applied in the Northwest Grid, these construction to control protective device closed test platform have proposed very high requirement.Control protective device closed test platform as the He Jianshe Northwest Grid; characteristics such as vast in conjunction with the Northwest Grid region, that grid structure is special; realize the control protective device closed test under the big electrical network background; satisfying the demand of dissimilar control protective devices being carried out closed test, is that problem to be solved is arranged.
Summary of the invention
The purpose of this utility model is to provide a kind of closed test platform of electric power system control protective device; can realize that electric system working control protection equipment is inserted Digital Simulation System carries out closed test by accurate transformation based on this platform to digital quantity and analog quantity.Have particular requirement different with domestic and international existing Digital Simulation platform to object, the subjects of this platform is flexible, can carry out closed test to various typical electric power system control protective devices.
For this reason, the utility model is achieved by the following technical solutions:
A kind of closed test platform of electric power system control protective device comprises: operational terminal, computing unit, physical interface device, power amplifier, working control protective device, ancillary test instrument; Described operational terminal is connected by gigabit Ethernet and computing unit are two-way; Described computing unit is connected with physical interface device is two-way; Protective device is two-way is connected with control for described physical interface device 30, and described physical interface device is provided with power amplifier with controlling between the protective device; Described power amplifier by the ancillary test instrument with control that protective device is two-way to be connected.
The access power amplifier carries out linear amplification to electric current and voltage between described physical interface device and the control protective device; Can be from power amplifier and control protective device to ancillary test equipment one-way transmission signal.
Described computing unit adopts server group of planes set of systems to become.Described power amplifier is used for the analog quantity of physical interface device conversion is carried out linear amplification, outputs to the working control protective device.Described working control protective device comprises protective relaying device, automatic safety device, excitation controlling device, FACTS control device and HVDC control device.Described ancillary test instrument is made up of record ripple, analysis, record, is used for writing down data and the waveform that process of the test produces, and conveniently analyzes.
Described operational terminal, electric system simulation software for calculation by the inside installation, carry out that the electric system circuit diagram is built and the parameter input, and set the digital quantity that the actual physics device experiment needs input and output, selected related channel program, and above information is submitted to computing unit, and receive the relevant feedback result from computing unit.
Described computing unit, adopt the high-performance server Network of Workstation, be used to receive and dispatch the simulation calculation task that software for calculation is submitted to, simulate the operation conditions of setting electric system with the mode of numerical evaluation, will need the digital quantity of input and output to transmit according to being provided with of evaluation work simultaneously by physical unit interface and actual physics device.
Described physical interface device, can high precision, the synchronously AI of converting digital analogue system (analog quantity input), AO (analog quantity output), DI (switching value input), DO signals such as (switching value outputs), can catch incidents such as level saltus step, trigger action and stamp accurate markers for incident.
Described power amplifier can carry out linear amplification with the analog quantity of physical interface device conversion, outputs to the working control protective device.Described working control protective device is the tested device of closed test platform, is used for closed test research, includes but not limited to protective relaying device, automatic safety device, excitation controlling device, FACTS control device, HVDC control device etc.
Described ancillary test instrument mainly is made up of instrument such as record ripple, analysis, records, is used for writing down data and the waveform that process of the test produces, and conveniently analyzes.
Further improvement of the utility model is,
(1) described computing unit is realized accurate simulation to large-scale power system by the numerical evaluation mode, and inserts various working control protective devices by physical interface device, carries out the control protective device closed test under the big electrical network background.
(2) each parameter that described physical interface device can input and output conventional electric power system element has no particular limits, and can be used for the closed test research of dissimilar control protective devices flexibly.
Because simulate accurately to the operation conditions of large-scale electrical power system electric power system control protective device closed test platforms through calculation of the present utility model unit; and AI, AO, interfaces such as DI, DO with the working control protective device have been realized; carry out closed test thereby insert the working control protective device, a kind of new test platform pattern is provided.Therefore, the utility model can carry out the working control protective device closed test under the large-scale electrical power system background that digital model builds, is applicable to the development and the process of the test of the various working control protective devices of electric system.
Description of drawings
Fig. 1 is the synoptic diagram of electric power system control protective device closed test platform of the present utility model;
Fig. 2 is to be the electric power system control protective device closed test platform principle of work synoptic diagram of the present utility model of example with TCSC controller test.
Embodiment
Fig. 1 is according to the synoptic diagram of electric power system control protective device closed test platform of the present utility model, has represented the annexation between the various piece in the test platform.
As shown in Figure 1, electric power system control protective device closed test platform of the present utility model mainly comprises: operational terminal 10, computing unit 20, physical interface device 30, power amplifier 40, working control protective device 50, ancillary test instrument 60
Operational terminal 10, the requestor who in this test platform, takes on calculation task, the user realizes the building of electric system, parameter input by operational terminal and to the setting of test parameters, and related data and setting are submitted to computing unit 20, and from computing unit 20 acceptance test feedback result.The user can be by operational terminal 10 at the electrical network anywhere of emulation, many places be provided with and insert actual physics device (as relay protection and automatic safety device, direct current transportation controller etc.) interface arbitrarily in the actual tests, realize the working control protective device is connected to actual effect in the Digital Simulation System.After artificial tasks finished, operational terminal 10 received result of calculations, and can carry out statistical treatment to simulation result, as search for some electric parameters extreme value, form multi-form contrast chart etc. change influence so that analyze various parameters to simulation result.Analogue system allows a plurality of operational terminals 10 to submit different calculation tasks and reception result simultaneously to.
Computing unit 20; mainly be responsible for accepting the calculation task that operational terminal 10 is uploaded; simulate the operational process of whole electric system, and be provided with according to physical interface device and give power amplifier 40 or working control protective device 50 by the AI and the DI channel transfer of physical interface device 30 corresponding electric parameters or switching value.Computing unit 20 is become with computing node group by Control Node, wherein the computing node group be one group separate, by the interconnected cluster server node of express network, and managed by dispatch server, it can make full use of the resource of each computing node in the group of planes, realizes the simulation of complicated electric power system situation.
Physical interface device 30; the exchange hinge that digital quantity that generates as analogue system and working control protective device need physical quantity; interface module by physical unit; A/D (D/A) integrated circuit board, I/O integrated circuit board etc.; in process of the test, for the control protective device provides and send the variate-value that its required input quantity and reception and processing controls protective device are exported.As, the control protective device is a field regulator, need send the set end voltage of field regulator place generator to it; And need reception and handle the field voltage that this field regulator is exported.
Power amplifier 40; comprise one group of linear voltage current power amplifier unit; be used for voltage linear amplification with 30 outputs of physical unit interface; obtain and control the electric current and voltage amount that protective device 50 input need be complementary, wherein the enlargement factor of electric current and voltage can be selected in power amplifier.
Working control protective device 50 is measurands of this closed test platform; comprise multiple secondary equipment in power system; include but not limited to relay protection, automatic safety device, direct current transportation controller etc.; if the input of working control protective device 50 is from the output of power amplifier 40; if the numerical value of the input voltage that working control protective device 50 needs is less, can directly insert working control protective device 50 by the output of physical interface device 30.By these working control protection equipment being inserted the closed test platform of electric power system control protective device, can check its actual effect in system.
Test support equipment 60 is used for the artificial electric parameters that monitors and write down the output of physical unit interface module, keeping records test figure etc.The electric parameters of monitoring in the test not only can be monitored from operational terminal 10 and manage, can also form actual electric current and voltage amount and note analysis when making things convenient for and research by test-meter.
The concrete connected mode of electric power system control protective device closed test platform of the present utility model is: operational terminal 10 is connected by gigabit Ethernet respectively with computing unit 20, computing unit 20 and physical interface device 30; connect by the private mask signal wire respectively between physical interface device 30 and power amplifier 40, physical interface device 30 and the working control protective device 50; power amplifier 40 and working control protective device 50 connect by dedicated signal lines between working control protective device 50 and the ancillary test equipment 60.
Fig. 2 is to be the electric power system control protective device closed test platform principle of work synoptic diagram of the present utility model of example with TCSC controller test.
As shown in Figure 2, the hardware composition of TCSC control device closed-loop simulation test comprises: operational terminal, computing unit, physical interface device, power amplifier, TCSC control device, oscillograph etc.
The simulator of being made up of operational terminal and computing unit and the interface signal of TCSC control device are divided into two classes, and the one, the system's operation parameter (analog quantity is as alternating voltage, electric current etc.) of output and the switching value of output; The 2nd, the switching value of input is as the thyristor trigger pulse etc.Here, input and output are all at simulator.
For ease of describing, we suppose that the user needs six voltage quantities u1, u2, u3, u4, u5, u6 and six electric current variable i1, i2, i3, i4, i5, i6 are outputed to the TCSC controller from simulator in l-G simulation test, six switch controlling signals that the TCSC controller need be sent feed back to simulator.For realizing above-mentioned functions, the user need configure in the program of operational terminal six voltage quantities u1, u2, u3, u4, u5, u6 and six electric current variable i1, i2, i3, i4, i5, i6 are outputed to the TCSC controller from the AO integrated circuit board passage of physical interface device, and the DI integrated circuit board passage by physical interface device is gathered the pulse control signal that the TCSC controller sends and returned to analogue system.And the corresponding passage of physical interface device functional cards is received in the TCSC controller by shielded signal wire according to the parameter setting in the simulation software, in order to reach the input of TCSC controller requirement electric current and voltage, analog quantity voltage u that is converted to through A/D in the AO integrated circuit board and current i need to amplify through power amplifier linearity earlier to obtain being input in the TCSC controller behind u ' and the i '.
In simulation process, computing unit carries out simulation calculation, and each the time data u1, u2, u3, u4, u5, u6, i1, i2, i3, i4, i5, the i6 that the step will need to export send to the master control borad of physical interface device by gigabit Ethernet, master control borad with the AO passage output of data through feature board, passes to the TCSC controller again after amplifying; Feature board is gathered the data of DI passage and is issued master control borad simultaneously, and master control borad is uploaded to computing unit with data by gigabit Ethernet.Like this, the electric system by the digital form simulation in the computing unit has just formed closed loop with actual TCSC controller, thereby can carry out closed test to the TCSC controller of reality.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.
Claims (6)
1. the closed test platform of an electric power system control protective device, it is characterized in that, comprising: operational terminal (10), computing unit (20), physical interface device (30), power amplifier (40), working control protective device (50), ancillary test instrument (60); Described operational terminal (10) is by gigabit Ethernet and two-way connection of computing unit (20); Described computing unit (20) and two-way connection of physical interface device (30); Protective device is two-way is connected with control for described physical interface device (30).
2. a kind of according to claim 1 closed test platform of electric power system control protective device is characterized in that: the access power amplifier carries out linear amplification to electric current and voltage between described physical interface device (30) and the control protective device; Can be from power amplifier and control protective device to ancillary test equipment one-way transmission signal.
3. a kind of according to claim 1 closed test platform of electric power system control protective device is characterized in that: described computing unit (20) employing server group of planes set of systems one-tenth.
4. a kind of according to claim 1 closed test platform of electric power system control protective device; it is characterized in that: described power amplifier (40); be used for the analog quantity of physical interface device (30) conversion is carried out linear amplification, output to working control protective device (50).
5. a kind of according to claim 1 closed test platform of electric power system control protective device, it is characterized in that: described working control protective device (50) comprises protective relaying device, automatic safety device, excitation controlling device, FACTS control device and HVDC control device.
6. a kind of according to claim 1 closed test platform of electric power system control protective device; it is characterized in that: described ancillary test instrument (60) is made up of record ripple, analysis, record; be used for writing down data and the waveform that process of the test produces, conveniently analyze.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645627A (en) * | 2012-03-09 | 2012-08-22 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Analog board IO channel signal closed-loop test system in real-time digital simulation system |
| CN103235223A (en) * | 2013-04-24 | 2013-08-07 | 国电联合动力技术有限公司 | Micro grid experimental testing platform on basis of RTDS (Real Time Digital System) |
| CN103605292A (en) * | 2013-11-08 | 2014-02-26 | 广东电网公司电力调度控制中心 | RTDS-based microcomputer protection integrated test method |
| CN107544475A (en) * | 2017-10-19 | 2018-01-05 | 贵州电网有限责任公司电力科学研究院 | A kind of power plant control system closed loop detecting system and detection method |
| CN108181537A (en) * | 2018-03-13 | 2018-06-19 | 云南电网有限责任公司电力科学研究院 | A kind of protective device automatic testing method and system |
| CN108535634A (en) * | 2018-05-16 | 2018-09-14 | 中国电力科学研究院有限公司 | A kind of test method and system suitable for half-wave power transmission line protective devices |
| CN114485778A (en) * | 2021-12-27 | 2022-05-13 | 广州高澜节能技术股份有限公司 | Automatic detection device and method for FACTS cooling equipment |
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2009
- 2009-11-24 CN CN2009202454287U patent/CN201611448U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645627A (en) * | 2012-03-09 | 2012-08-22 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Analog board IO channel signal closed-loop test system in real-time digital simulation system |
| CN102645627B (en) * | 2012-03-09 | 2014-06-25 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Closed-loop test system for IO (input/output) channel signals of analog board in RTDS (real time digital simulator) |
| CN103235223A (en) * | 2013-04-24 | 2013-08-07 | 国电联合动力技术有限公司 | Micro grid experimental testing platform on basis of RTDS (Real Time Digital System) |
| CN103235223B (en) * | 2013-04-24 | 2016-04-13 | 国电联合动力技术有限公司 | A kind of micro-capacitance sensor experimental test platform based on RTDS |
| CN103605292A (en) * | 2013-11-08 | 2014-02-26 | 广东电网公司电力调度控制中心 | RTDS-based microcomputer protection integrated test method |
| CN107544475A (en) * | 2017-10-19 | 2018-01-05 | 贵州电网有限责任公司电力科学研究院 | A kind of power plant control system closed loop detecting system and detection method |
| CN108181537A (en) * | 2018-03-13 | 2018-06-19 | 云南电网有限责任公司电力科学研究院 | A kind of protective device automatic testing method and system |
| CN108535634A (en) * | 2018-05-16 | 2018-09-14 | 中国电力科学研究院有限公司 | A kind of test method and system suitable for half-wave power transmission line protective devices |
| CN108535634B (en) * | 2018-05-16 | 2023-11-03 | 中国电力科学研究院有限公司 | Test method and system suitable for half-wavelength transmission line protection device |
| CN114485778A (en) * | 2021-12-27 | 2022-05-13 | 广州高澜节能技术股份有限公司 | Automatic detection device and method for FACTS cooling equipment |
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