CN101153884A - Relay-protection steady-state digital moving die test system - Google Patents

Relay-protection steady-state digital moving die test system Download PDF

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Publication number
CN101153884A
CN101153884A CNA2007100703736A CN200710070373A CN101153884A CN 101153884 A CN101153884 A CN 101153884A CN A2007100703736 A CNA2007100703736 A CN A2007100703736A CN 200710070373 A CN200710070373 A CN 200710070373A CN 101153884 A CN101153884 A CN 101153884A
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China
Prior art keywords
module
fault
calculation
failure
parameter
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Pending
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CNA2007100703736A
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Chinese (zh)
Inventor
王友初
朱雪锋
张永浩
方先锋
孙乐愉
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HANGZHOU ZHONGHENG ELECTRIC CO Ltd
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HANGZHOU ZHONGHENG ELECTRIC CO Ltd
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Priority to CNA2007100703736A priority Critical patent/CN101153884A/en
Publication of CN101153884A publication Critical patent/CN101153884A/en
Pending legal-status Critical Current

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Abstract

A relay protection stable-state digital dynamic simulation test system comprises a graphic data memory module, a power network modeling module, a parameter setting module, a failure setting module, a failure data calculation module, a failure analysis module and a relay protection simulation module, wherein, the graphic data memory module is used to store the graphic model of various elements of a power system and various failure calculation models; the power network modeling module, according to the structure of the to-be-detected power network, is used to select elements and corresponding failure calculation model and form the power network topological structure of the failure calculation models; the parameter setting module is used to set the concrete parameters of each element of the established failure calculation models; the failure setting module is used to set the failure types and parameters of the failure calculation models; the failure data calculation module, according to the network topological structure of the power network, is used to calculate the parameter after failure occurs, i.e. the current of each subcircuit, the voltage of each busbar and the branching factors among subcircuits. The invention realizes real simulation of various failures in power system, thereby having strong practicability.

Description

Relay-protection steady-state digital moving die test system
Technical field
The invention belongs to the test macro of relay protection of power system, relate in particular to a kind of steady-state digital moving die test system.
Background technology
The microcomputer type relay protection tester is the proving installation of equipment such as all kinds of relays of test verification electric system, protective device; The microcomputer type relay protection tester is a parameter of being set input current, voltage by man-machine conversation; instruct electronic circuit, D/A conversion, power amplification by the program control signal source; output has polyphase current, the voltage source of certain power and gives protective relaying device; accept the feedback information of protective relaying device simultaneously; make the series response; give record, reaching automatic test result, and with the result with literal, chart printed report.
Existing relay-protection tester computation model is simple; the general general computation model that is called single ended power supply; it is approximately a power supply, a circuit, a load to electric system; can not truly reflect Operation of Electric Systems the whole network situation; therefore can only simulate simple fault; can not simulate the electric system complex fault relevant with electrical network, the result of test can only represent characteristic protective relaying device static state, discrete.
Summary of the invention
For overcome existing relay-protection tester can only simulate simple fault, can not the Simulation of Complex fault, the deficiency of poor practicability, the invention provides and a kind ofly can carry out real emulation, practical relay-protection steady-state digital moving die test system the various faults of electric system.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of relay-protection steady-state digital moving die test system comprises: the graphics data memory module is used for the graphical model and the various calculation of fault model of the various elements of store power system; Electric network model is set up module, is used for the electric structure according to actual electric network to be detected, selects corresponding calculation of fault model, and chooses various elements, and generate the electrical network network topology structure of calculation of fault model; Parameter setting module is used to set the concrete parameter of each element of the calculation of fault model of having set up; Malfunctioning module is set, is used for setting the fault type and the parameter of calculation of fault model; The fault data computing module is used for according to fault type, the parameter after breaking down according to the network topology structure calculating of electrical network: the braning factor between the electric current of each branch road, the voltage of each bus and branch road; Failure analysis module is used for calculating three-phase current source, voltage source and switching value according to the parameter after breaking down; The relay protection emulation module is used for three-phase current source, voltage source and switching value are outputed to protective relaying device, carries out emulation testing.
Further, in described graphics data memory module, described calculation of fault model comprises single ended power supply radial pattern system, bilateral power-supply system, the double loop system that has zero-sequence mutual inductance, bilateral power ground system, three side power-supply systems.
Technical conceive of the present invention is: graphical relay protection setting software for calculation makes the relay protection of power system staff can be by patterned electric network fault analysis and the protection software relay protection constant value of adjusting of adjusting.From the angle of Setting Calculation of Relaying Protection, the factor that needs to consider is a lot, and wherein the mode of connection of electrical network and the method for operation are to having the greatest impact that definite value is calculated.Along with the development of electrical network, the electrical network scale is more and more big, and the mode of connection and the method for operation are increasingly sophisticated.Wherein big ring, little ring are overlapped, and the situation that long line, short-term are cross-linked is commonplace.These have brought difficulty all for the evaluation work of adjusting of protection definite value.For this relation of sensitivity, selectivity, quick-action and the reliability of reasonable coordination protection,, just must carry out repeatedly and careful calculating the various methods of operation and the various faults situation of electrical network so that each protection reaches best mated condition.
Owing to can simulate multiple complex fault under the various system wiring modes, thereby operation characteristic that can emulation electric system whole network.Can not only satisfy the tester's of relay protection class test request to protective relaying device; Can also satisfy the dispatcher and calculate the requirement carry out verification to adjusting---the result calculated of adjusting of actual electric network is directly tested the correctness of adjusting and calculating with verification to protective device with tester.
Graphical foundation and the analysis electric network model; The various faults computation model is provided, comprises: single ended power supply, both-end power supply, double loop, looped network, band transformer or the like.And other tester can only provide some formula and the algorithm that provides according to the single ended power supply computation model; Can simulate the multiple complex fault under the whole network environment.Other tester can only be simulated static discrete simple fault; But the system wiring mode of the various reality of dynamic similation, and the parameter of importing each element is come dynamic similation real system fault; Each component parameters is the actual parameter of primary side, and CT, PT no-load voltage ratio can set on demand, is changed the output secondary side analogue value automatically by tester; Can carry out check test to the result of calculation of adjusting of actual electric network, both emulation the operation characteristic of electric power networks, also verified the performance parameter and the action behavior of protective relaying device.
Beneficial effect of the present invention mainly shows: 1, the multiple complex fault under the various system wiring modes of simulation, practical; 2, satisfied test request to protective relaying device; 3, can satisfy the dispatcher and calculate the requirement of carrying out verification to adjusting.
Description of drawings
Fig. 1 is the process flow diagram of relay-protection steady-state digital moving die test system of the present invention.
Fig. 2 is the functional block diagram of relay-protection steady-state digital moving die test system.
Fig. 3 is the hardware block diagram of relay-protection steady-state digital moving die test system.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 1~Fig. 3, a kind of relay-protection steady-state digital moving die test system comprises: graphics data memory module 1 is used for the graphical model and the various calculation of fault model of the various elements of store power system; Electric network model is set up module 2, is used for the electric structure according to actual electric network to be detected, selects corresponding calculation of fault model, and chooses various elements, and generate the electrical network network topology structure of calculation of fault model; Parameter setting module 3 is used to set the concrete parameter of each element of the calculation of fault model of having set up; Malfunctioning module 4 is set, is used for setting the fault type and the parameter of calculation of fault model; Fault data computing module 5 is used for according to fault type, the parameter after breaking down according to the network topology structure calculating of electrical network: the braning factor between the electric current of each branch road, the voltage of each bus and branch road; Failure analysis module 6 is used for calculating three-phase current source, voltage source and switching value according to the parameter after breaking down; Relay protection emulation module 7 is used for three-phase current source, voltage source and switching value are outputed to protective relaying device, carries out emulation testing.
In described graphics data memory module 1, described calculation of fault model comprises single ended power supply radial pattern system, bilateral power-supply system, the double loop system that has zero-sequence mutual inductance, bilateral power ground system, three side power-supply systems.
Present embodiment is set up electric network model by graphics mode, and software extracts each equipment component parameter that the user sets up automatically, analyzes annexation between them automatically, carries out the calculation of fault of respective type then.Handle through DSP, control three-phase current source, three-phase voltage source and switching value are carried out emulation testing to protective relaying device.
With reference to Fig. 3, fault analysis adopts DSP to handle, and the DSP part is as follows at the main testing process of digital moving die:
Receive passage that host computer tester program RelayAdvance issues by USB 2.0 high-speed communication interfaces and describe packet with control command;
Decoding and analysis channel are described and control command, open corresponding test module and handle;
Carry out order and the parsing of passage description and the generation of Wave data that the needs in the packet are handled;
Channel data is handled through DSP, gives DA chip, produces the small-signal waveform immediately, and through power amplification, generation meets the three-phase current source and the three-phase voltage source of simulation requirements, and delivers to tested protective relaying device;
Decipher 4 road amounts of leaving and 8 tunnel and open, send into CPLD and handle, and is connected, with the action of control protective relaying device, detection protective relaying device state with tested protective relaying device into amount;
AD delivers to the AD sampling A from the current waveform of the instant sampling of 4 road voltages, 3 road electric currents, AD send sampled data to " from DSP ", the data that " from DSP " returns to sampling are carried out instant analysis and are handled, and whether the monitoring output waveform is normal, and feed back to " main DSP " and carry out flow process control ";
Main DSP " detect the state (a series of tester internal environments such as excess temperature, overload, waveform distortion, current open) of tester internal hardware circuit environment in test process; report to host computer tester program RelayAdvance, and on the interface, show current state.
Make the relay protection of power system staff can pass through patterned electrical network, fault analysis and the protection software relay protection constant value of adjusting of adjusting, simultaneously by electric power system fault emulation flexibly to the whole network relay protection constant value emulation verification; Can satisfy tester of relay protection class and dispatcher to the adjusting and test request of protective relaying device, give full play to the usefulness of relay-protection tester, be making contributions of safe operation of power system.
Set up in the module 2 at electric network model, component equipment wherein comprises generator, outside equivalent system, isolating switch, two volume transformers, three-circuit transformer, autotransformer, transmission line of electricity or cable, bus; When clicking certain element (removing transmission line of electricity or cable) button in the tool box, this button is down state; Then mouse is moved on to and wish to put the appropriate location of this component equipment and click left button, this component equipment will be drawn in the corresponding position.
If will draw transmission line of electricity, when clicking the transmission line of electricity button in the tool box at interface, this button is down state; Then mouse is moved on to the starting point place that to place transmission line of electricity and click left mouse button (unclamping left mouse button), rolling mouse needs corner to click left button again to circuit then, click right mouse button up to the position that circuit finishes, even if this moment, this circuit was finished.
Virtual line is that it is the equal of the circuit of zero impedance for the convenient employed a kind of virtual component of drawing, and purpose is that two equipment that should connect together are coupled together.Virtual line also can be drawn as broken line, the same transmission line of electricity of its technique of painting.Virtual line is had any different in appearance with circuit on figure: line is a dotted line, and circuit is a solid line.
When the input element parameter, the title of input element at first.When component parameters window At time of eject, system can provide the electric pressure of acquiescence, as hope electric pressure is set, and selects electric pressure in the element window of Xian Shiing below.When the input element parameter, please note the parameter that input is legal, such as must not input alphabet or literal in the place that requires input digit, must not please note as the place of rated capacity and so on and to import negative, rated voltage and electric pressure system default do not differ and should surpass 10% of electric pressure, otherwise system can point out and re-enters.When ejecting the element window, system can provide the electric pressure of acquiescence automatically, and the reference current under this electric pressure at every turn.After the component parameters input finishes, confirm errorless back click " affirmation " button.If want original institute transmission of data is made amendment, then in graphical window, double-click and want the element revised, the left button of perhaps clicking the mouse is chosen element, click right is selected attribute, repeat original action then, can edit, a kind of method in back has been avoided moving the unnecessary trouble that causes because of mouse.

Claims (2)

1. relay-protection steady-state digital moving die test system, it is characterized in that: described test macro comprises:
The graphics data memory module is used for the graphical model and the various calculation of fault model of the various elements of store power system;
Electric network model is set up module, is used for the electric structure according to actual electric network to be detected, selects corresponding calculation of fault model, and chooses various elements, and generate the electrical network network topology structure of calculation of fault model;
Parameter setting module is used to set the concrete parameter of each element of the calculation of fault model of having set up;
Malfunctioning module is set, is used for setting the fault type and the parameter of calculation of fault model;
The fault data computing module is used for according to fault type, the parameter after breaking down according to the network topology structure calculating of electrical network: the braning factor between the electric current of each branch road, the voltage of each bus and branch road;
Failure analysis module is used for calculating three-phase current source, voltage source and switching value according to the parameter after breaking down;
The relay protection emulation module is used for three-phase current source, voltage source and switching value are outputed to protective relaying device, carries out emulation testing.
2. relay-protection steady-state digital moving die test system as claimed in claim 1; it is characterized in that: in described graphics data memory module, described calculation of fault model comprises single ended power supply radial pattern system, bilateral power-supply system, the double loop system that has zero-sequence mutual inductance, bilateral power ground system, three side power-supply systems.
CNA2007100703736A 2007-07-27 2007-07-27 Relay-protection steady-state digital moving die test system Pending CN101153884A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101799504A (en) * 2010-04-20 2010-08-11 天津市电力公司 Method for testing influence of distortion data on relay protection device
CN101858959A (en) * 2010-05-14 2010-10-13 中国电力科学研究院 Simulation test method for influence of sampling data delay deviation on relay protective device
CN101915881A (en) * 2010-08-04 2010-12-15 国网电力科学研究院 Real-time simulation test method of relay protection device
CN102004202A (en) * 2010-12-28 2011-04-06 扬州博电电气科技有限公司 Microcomputer relay protection tester
CN102033993A (en) * 2010-12-07 2011-04-27 中国电力科学研究院 Method for constructing dynamic simulation relay protection model of large-scaled power system
CN102072996A (en) * 2010-11-15 2011-05-25 河北省电力研究院 System for realizing automatic digital protection and closed loop moving die test
CN102707169A (en) * 2012-05-21 2012-10-03 上海毅昊自动化有限公司 Relay protection accident image detecting system and relay protection accident image detecting method
CN102866310A (en) * 2012-07-18 2013-01-09 广东电网公司电力科学研究院 Flexible simulation test platform for circuit protection device of power system
CN103809052A (en) * 2012-11-14 2014-05-21 中国广东核电集团有限公司 Dynamic simulation experiment system for supergrid power transmission line protection and charged function test method
CN104820152A (en) * 2015-05-21 2015-08-05 国家电网公司 Portable DC switch differential simulation test system and realization method thereof
CN105629963A (en) * 2016-03-28 2016-06-01 成都天进仪器有限公司 Intelligent relay protection testing instrument with lightning protection function
CN105807118A (en) * 2014-12-30 2016-07-27 国家电网公司 Virtual current testing device and testing method thereof for high-voltage DC circuit breaker
CN106501705A (en) * 2016-10-26 2017-03-15 成都交大许继电气有限责任公司 Traction integrated system protection CPU board automatic checkout system and its detection method
CN107169213A (en) * 2017-05-23 2017-09-15 南方电网科学研究院有限责任公司 Test method, the apparatus and system of zero-sequence current self-adaptive protector functional parameter
CN107219772A (en) * 2017-05-23 2017-09-29 南方电网科学研究院有限责任公司 Test method, the apparatus and system of many line downs suppression and isolating device functional parameter
CN107247423A (en) * 2017-05-24 2017-10-13 湖北三江航天万峰科技发展有限公司 A kind of equivalent detection means of equipment
CN107453334A (en) * 2017-09-09 2017-12-08 广西电网有限责任公司电力科学研究院 A kind of transformer station's AC system breaker Graded coordination method of calibration based on Visio
CN107462801A (en) * 2017-08-14 2017-12-12 国网天津市电力公司 A kind of portable Small Electric Current Earthing And Routing Device dynamic simulation test device
CN107993540A (en) * 2018-01-15 2018-05-04 国网北京市电力公司 A kind of microcomputer protective relay teaching experiment system
CN109270379A (en) * 2018-10-11 2019-01-25 国网浙江省电力公司湖州供电公司 The embedded testing method of site relay protection of changeable defencive function

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101799504A (en) * 2010-04-20 2010-08-11 天津市电力公司 Method for testing influence of distortion data on relay protection device
CN101858959A (en) * 2010-05-14 2010-10-13 中国电力科学研究院 Simulation test method for influence of sampling data delay deviation on relay protective device
CN101858959B (en) * 2010-05-14 2013-05-08 中国电力科学研究院 Simulation test method for influence of sampling data delay deviation on relay protective device
CN101915881A (en) * 2010-08-04 2010-12-15 国网电力科学研究院 Real-time simulation test method of relay protection device
CN101915881B (en) * 2010-08-04 2013-03-06 国网电力科学研究院 Real-time simulation test method of relay protection device
CN102072996B (en) * 2010-11-15 2015-01-07 河北省电力公司电力科学研究院 System for realizing automatic digital protection and closed loop moving die test
CN102072996A (en) * 2010-11-15 2011-05-25 河北省电力研究院 System for realizing automatic digital protection and closed loop moving die test
CN102033993B (en) * 2010-12-07 2013-04-10 中国电力科学研究院 Method for constructing dynamic simulation relay protection model of large-scaled power system
CN102033993A (en) * 2010-12-07 2011-04-27 中国电力科学研究院 Method for constructing dynamic simulation relay protection model of large-scaled power system
CN102004202A (en) * 2010-12-28 2011-04-06 扬州博电电气科技有限公司 Microcomputer relay protection tester
CN102707169B (en) * 2012-05-21 2014-07-16 上海毅昊自动化有限公司 Relay protection accident image detecting system and relay protection accident image detecting method
CN102707169A (en) * 2012-05-21 2012-10-03 上海毅昊自动化有限公司 Relay protection accident image detecting system and relay protection accident image detecting method
CN102866310A (en) * 2012-07-18 2013-01-09 广东电网公司电力科学研究院 Flexible simulation test platform for circuit protection device of power system
CN102866310B (en) * 2012-07-18 2015-03-04 广东电网公司电力科学研究院 Flexible simulation test platform for circuit protection device of power system
CN103809052B (en) * 2012-11-14 2019-01-29 中国广核集团有限公司 Supergrid line protection moving die experiment system, electrification function test method
CN103809052A (en) * 2012-11-14 2014-05-21 中国广东核电集团有限公司 Dynamic simulation experiment system for supergrid power transmission line protection and charged function test method
CN105807118A (en) * 2014-12-30 2016-07-27 国家电网公司 Virtual current testing device and testing method thereof for high-voltage DC circuit breaker
CN104820152A (en) * 2015-05-21 2015-08-05 国家电网公司 Portable DC switch differential simulation test system and realization method thereof
CN104820152B (en) * 2015-05-21 2018-06-15 国家电网公司 Portable DC switchs differential emulation test system and its implementation
CN105629963A (en) * 2016-03-28 2016-06-01 成都天进仪器有限公司 Intelligent relay protection testing instrument with lightning protection function
CN106501705A (en) * 2016-10-26 2017-03-15 成都交大许继电气有限责任公司 Traction integrated system protection CPU board automatic checkout system and its detection method
CN107219772A (en) * 2017-05-23 2017-09-29 南方电网科学研究院有限责任公司 Test method, the apparatus and system of many line downs suppression and isolating device functional parameter
CN107169213B (en) * 2017-05-23 2020-07-28 南方电网科学研究院有限责任公司 Method, device and system for testing function indexes of zero-sequence current adaptive protection device
CN107169213A (en) * 2017-05-23 2017-09-15 南方电网科学研究院有限责任公司 Test method, the apparatus and system of zero-sequence current self-adaptive protector functional parameter
CN107247423B (en) * 2017-05-24 2019-11-19 湖北三江航天万峰科技发展有限公司 A kind of equivalent detection device of equipment
CN107247423A (en) * 2017-05-24 2017-10-13 湖北三江航天万峰科技发展有限公司 A kind of equivalent detection means of equipment
CN107462801A (en) * 2017-08-14 2017-12-12 国网天津市电力公司 A kind of portable Small Electric Current Earthing And Routing Device dynamic simulation test device
CN107453334A (en) * 2017-09-09 2017-12-08 广西电网有限责任公司电力科学研究院 A kind of transformer station's AC system breaker Graded coordination method of calibration based on Visio
CN107453334B (en) * 2017-09-09 2020-03-31 广西电网有限责任公司电力科学研究院 Visio-based transformer substation alternating current system breaker level difference matching verification method
CN107993540A (en) * 2018-01-15 2018-05-04 国网北京市电力公司 A kind of microcomputer protective relay teaching experiment system
CN109270379A (en) * 2018-10-11 2019-01-25 国网浙江省电力公司湖州供电公司 The embedded testing method of site relay protection of changeable defencive function
CN109270379B (en) * 2018-10-11 2021-01-12 国网浙江省电力公司湖州供电公司 In-situ relay protection embedded test method capable of switching protection function

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