CN102323502A - The line closed loop test macro and the method for testing thereof that are used for relay protection - Google Patents
The line closed loop test macro and the method for testing thereof that are used for relay protection Download PDFInfo
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- CN102323502A CN102323502A CN201110221401A CN201110221401A CN102323502A CN 102323502 A CN102323502 A CN 102323502A CN 201110221401 A CN201110221401 A CN 201110221401A CN 201110221401 A CN201110221401 A CN 201110221401A CN 102323502 A CN102323502 A CN 102323502A
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Abstract
A kind of line closed loop test macro that is used for relay protection of technical field of power systems; This system comprises: be arranged at protection HMI testing control module and the simulated failure generator module that is arranged at relay protection module on the primary equipment body and is attached thereto in the pulpit; Protection HMI testing control module is to simulated failure generator module test transmission control signal; The simulated failure generator module produces the simulated failure signal and exports the relay protection module to, and the relay protection module is sent the action command signal and exported the simulated failure generator module to.When the present invention stops transport at a smart machine; Protection module to the intelligent assembly terminal carries out distant place integrality on-line testing; Realize the online functional test of relay protection, simplified test job, improved the global reliability of testing efficiency and system; Guarantee the safe operation of electrical network, improved the reliability of power system power supply.
Description
Technical field
What the present invention relates to is a kind of apparatus and method of technical field of power systems, specifically is a kind of line closed loop test macro and method of testing thereof that is used for relay protection.
Background technology
Along with economic development, social progress, science and technology and the level of IT application improve constantly and the becoming increasingly conspicuous of global resources and environmental problem, power network development faces new problem and new challenge.Rely on present information, communication and control technology, the develop actively intelligent grid adapts to the requirement of following sustainable development, has become the Real Choice of International Power development.Important support as the intelligent grid construction; Have that networking is controlled, the intelligent primary equipment of digitized measurement, on-line testing and status monitoring characteristic; For the safe and stable operation of electric system has been established material base, for operation, the scheduling of optimizing electrical network provides sufficient data and regulating measure.
The intelligence primary equipment is the important electrical equipment in the intelligent grid, and it is used for transformation, cut-out and connection load circuit, and the disengagement failure circuit, and the accident that prevents enlarges, and guarantees safe operation.The intelligent assembly terminal is to realize accomplishing the equipment of control at interval with conventional electrical primary equipment combination back, is an important component part of intelligent primary equipment.Existing Intelligentized method is used the pattern of " intelligent terminal+primary equipment " often, and the intelligent terminal of employing has only the function of carrying out the breaker tripping and closing order, does not have defencive function.Do not reach the requirement of a smart machine, increase the requirement that defencive function can satisfy a smart machine, but bring many difficulties, make the protection reliability can not get guaranteeing to test.Yet, if when increasing defencive function, increase online test function.Just can satisfy above-mentioned all requirements.It is reported and all do not possess aforementioned capabilities by domestic intelligent terminal at present.
Retrieval through to prior art is found: disclose a kind of protection test macro and its implementation in " the relay protection test system design " of the 24th periodical of in Dec, 2009 protecting electrical power system and control; This system adopts PC+PLC framework, has realized the test of relay protection off-line site intelligent.But this existing system also must be at the scene and the artificial wiring of protective device, do not possess the on-line testing function.
Summary of the invention
The present invention is directed to the above-mentioned deficiency that prior art exists; A kind of line closed loop test macro and method of testing thereof that is used for relay protection is provided; Make it when a smart machine is stopped transport; Protection module to the intelligent assembly terminal carries out distant place integrality on-line testing, realizes the online functional test of relay protection.With existing off-line test simplified in comparison test job; Improved the global reliability of testing efficiency and system; For the electrical secondary system on-line testing that realizes a smart machine provides necessary condition, guaranteed the safe operation of electrical network, improved the reliability of power system power supply.
The present invention realizes through following technical scheme:
The present invention relates to a kind of line closed loop test macro that is used for relay protection; Comprise: be arranged at relay protection module and the simulated failure generator module on the primary equipment body that be arranged at that protection HMI testing control module in the pulpit is attached thereto; Wherein: protection HMI testing control module is to simulated failure generator module test transmission control signal; The simulated failure generator module produces the simulated failure signal and exports the relay protection module to, and the relay protection module is sent the action command signal and exported protection HMI testing control module to.
Described relay protection module comprises: Embedded PLC control module, Microcomputer Protection unit and first busy relay that is attached thereto; Wherein: the Embedded PLC control module links to each other with protection HMI testing control module through GOOSE; Described Microcomputer Protection unit links to each other through first test contacts with the simulated failure generator module; First busy relay is controlled first test contacts; When needs carry out on-line testing, control first busy relay, add the simulated failure amount for the Microcomputer Protection unit and carry out the on-line testing operation through PLC.
Described protection HMI testing control module comprises: with interconnective first communications interface unit of simulated failure generator module, with the interconnective second communication interface unit of relay protection module, ALU, control module and man-machine conversation unit; Wherein: first communications interface unit links to each other with the simulated failure generator module and issues the test parameter that the project of being tested as required by the tester and Microcomputer Protection type to be tested are set, and the second communication interface unit links to each other with the Embedded PLC module of relay protection module and sends and turn over line traffic control order automatically.The test parameter that project of being tested as required by the tester and Microcomputer Protection type to be tested are set is imported through the man-machine conversation unit.
Described simulated failure generator module comprises: first communications interface unit, simulating signal generating unit and the analog output interface circuit that link to each other with protection HMI testing control module; Wherein: first communications interface unit receives the test parameter and the test command of self-shield HMI testing control module, and the simulating signal generating unit obtains converting to behind the digital quantity analog quantity according to test parameter and exports the relay protection module to and test.
Described first communications interface unit, second communication interface unit are optical fiber communication.
The digital input interface end of described simulated failure generator module is provided with second test contacts by the control of second busy relay; This second busy relay links to each other with Protection Module; When test; Action cycle of Microcomputer Protection unit finishes or when cooperating several action cycle, then controls second busy relay, make second test contacts according to test period needs break off or connect and control the output that the simulating signal generating unit stops or continuing the simulated failure signal;
The present invention relates to the method for testing of said system, may further comprise the steps:
The first step, ALU calculate test parameter and export the simulated failure generator module to by first communications interface unit;
Second step; First communications interface unit of simulated failure generator module transfers to the simulating signal generating unit with test parameter; The simulating signal generating unit calculates digital quantity according to test parameter by CPU; Become analog quantity to pass through the first busy relay contact through digital-to-analog conversion then, carry analog quantity to export Microcomputer Protection unit simulation amount input port to.
The 3rd step; Logic control element is exported test command according to test-types; And export the Embedded PLC control module of relay protection module to through the GOOSE message by the second communication interface unit; The Embedded PLC control module is accomplished first test contacts that empty terminal test environment digitizing connects and start first busy relay according to the test command that receives, and first test contacts of low level simulated failure amount through first busy relay imported tested Microcomputer Protection unit;
The 4th step; Tested Microcomputer Protection unit is according to the simulated failure amount of input; Carry out the calculating of defencive function property; Finish action cycle or when cooperating several action cycle, then control second busy relay when obtaining the result, make second test contacts according to test period needs break off or connect and control the output that the simulating signal generating unit stops or continuing the simulated failure signal;
The Embedded PLC control module sends the action command signal to logic control element through the second communication interface unit, and logic control element starts and record test process and test result;
Described test parameter comprises: electric current, voltage and/or impedance.
Described test control signal comprises test template sequence number, enabling signal or stop signal.
Described simulated failure signal comprises low level signal.
Described action command signal comprises: alerting signal or trip signal.
Apparatus of the present invention provide the method for testing of online completion protective device and electrical secondary system under the situation that does not change the on-the-spot custom of relay protection capital construction management pattern and relay protection personnel; Under the important prerequisite that does not change original protective device reliability; Increased the on-line testing function; The protection and the test in loop when having simplified capital construction have greatly improved the global reliability of system, for " on-line testing " that realizes protective relay device and loop provides necessary condition; Guarantee the safe operation of protective device and electrical secondary system, improved the reliability of power system power supply.
Description of drawings
Fig. 1 is a system architecture synoptic diagram of the present invention.
Fig. 2 protects HMI testing control module structural representation for the present invention.
Embodiment
Elaborate in the face of embodiments of the invention down, present embodiment provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
Embodiment
As shown in Figure 1; This instance comprises: be arranged at relay protection module and the simulated failure generator module on the primary equipment body that be arranged at that protection HMI testing control module in the pulpit is attached thereto; Wherein: protection HMI testing control module is to simulated failure generator module test transmission control signal; The simulated failure generator module produces the simulated failure signal and exports the relay protection module to, and the relay protection module is sent the action command signal and exported protection HMI testing control module to.
Described relay protection module comprises: Embedded PLC control module, Microcomputer Protection unit and the first busy relay CSJ1 that is attached thereto; Wherein: the Embedded PLC control module links to each other with protection HMI testing control module through GOOSE; Described tested Microcomputer Protection unit links to each other through the first test contacts CSKZ1 with the simulated failure generator module; The first busy relay CSJ1 controls the first test contacts CSKZ1; When needs carry out on-line testing, control first busy relay, carry out the on-line testing operation through PLC.
Described protection HMI testing control module comprises: with interconnective first communications interface unit of simulated failure generator module, with the interconnective second communication interface unit of relay protection module, ALU and control module; Wherein: first communications interface unit links to each other with the simulated failure generator module and issues the test parameter that the project of being tested as required by the tester and Microcomputer Protection type to be tested are set, and the second communication interface unit links to each other with the Embedded PLC module of relay protection module and sends and turn over line traffic control order automatically.The test parameter that project of being tested as required by the tester and Microcomputer Protection type to be tested are set is imported through the man-machine conversation unit.
Described simulated failure generator module comprises: first communications interface unit, simulating signal generating unit and the analog output interface circuit that link to each other with protection HMI testing control module; Wherein: first communications interface unit receives the test parameter and the test command of self-shield HMI testing control module, and the simulating signal generating unit obtains converting to behind the digital quantity analog quantity according to test parameter and exports the relay protection module to and test.
Described first communications interface unit, second communication interface unit are optical fiber communication.
The concrete course of work of the present invention is following:
The precondition of the line closed loop test system and test of the first step, relay protection is differentiated:
1.1 the precondition of line closed loop test system and test is differentiated: when only primary equipment is out of service in test specification, the subsequent step of ability execute protection test.Criterion is following:
■ judges that according to test template the side circuit breaker position of relevant device is for dividing the position;
The electric current of ■ relevant device is lower than does not have the stream threshold;
Protection HMI testing control module satisfies above-mentioned two conditions at the same time, and the test condition of then differentiating for Online Transaction Processing satisfies, and the contact CSKZ1 that drives the corresponding first busy relay CSJ1 switches.Forwarded for second step to) continue to carry out;
Otherwise, differentiate the on-line testing condition and do not satisfy, stop to test direct alarm.
The test environment of second step, protective device and electrical secondary system is set.
2.1 protection HMI testing control module is called test template according to the model of device being tested, the inner PLC of control protective device is transformed into test pattern automatically, connects test automatically and virtually connects line.
2.2 protection HMI testing control module is according to the model of device being tested.Call the protection module actual motion definite value of relevant apparatus, calculate test parameter according to definite value protection HMI testing control module.
The closed loop test of the 3rd step, protective device and electrical secondary system.
3.1 protection HMI testing control module will calculate test parameter through optical fiber and send to the simulated failure generator module; The simulated failure generator module is transported to protection module according to test parameter generation simulated failure low level and begins test.
3.2 protection module is according to the simulated failure information action that adds, the contact CSKZ2 through the second busy relay CSJ2 goes the control fault generator module to stop output on the one hand.On protection HMI testing control module, send action report on the other hand.
3.3 protection HMI testing control module is carried out closed-Loop Analysis through the report of receiving, if the correct test parameter of revising of test returns the test that the first step is proceeded next project.If incorrect alarm prompt protection personnel.
So far, accomplish all on-line testing procedure of a protection system.
Like this, do not need artificial wiring, in the middle of capital construction and scrap build engineering according to the sequencing pattern through on-line testing, improved the checkability of protection system, reduced technical requirement to the field test personnel.The status monitoring mode that cooperates other secondary circuit.Improved the global reliability of system,, guaranteed the safe operation of protective device, improved the reliability of power system power supply for " repair based on condition of component " of realizing the protective relay loop provides necessary condition.
Claims (6)
1. line closed loop test macro that is used for relay protection; It is characterized in that; Comprise: be arranged at protection HMI testing control module, the relay protection module in the pulpit and be attached thereto and be arranged at the simulated failure generator module on the primary equipment body respectively; Wherein: protection HMI testing control module is to simulated failure generator module test transmission control signal; The simulated failure generator module produces the simulated failure signal and exports the relay protection module to, and the relay protection module is sent the action command signal and exported protection HMI testing control module to;
Described relay protection module comprises: Embedded PLC control module, Microcomputer Protection unit and first busy relay that is attached thereto; Wherein: the Embedded PLC control module links to each other with protection HMI testing control module through GOOSE; Described tested Microcomputer Protection unit links to each other through first test contacts with the simulated failure generator module; First busy relay is controlled first test contacts; When needs carry out on-line testing, control first busy relay, add the simulated failure amount for the Microcomputer Protection unit and carry out the on-line testing operation through PLC.
2. system according to claim 1; It is characterized in that; Described protection HMI testing control module comprises: with interconnective first communications interface unit of simulated failure generator module, with the interconnective second communication interface unit of relay protection module, ALU and control module; Wherein: first communications interface unit links to each other with the simulated failure generator module and issues the test parameter that the project of being tested as required by the tester and Microcomputer Protection type to be tested are set, and the second communication interface unit links to each other with the Embedded PLC module of relay protection module and sends and turn over line traffic control order automatically.
3. system according to claim 1; It is characterized in that; Described simulated failure generator module comprises: first communications interface unit, simulating signal generating unit and the analog output interface circuit that link to each other with protection HMI testing control module; Wherein: first communications interface unit receives the test parameter and the test command of self-shield HMI testing control module, and the simulating signal generating unit obtains converting to behind the digital quantity analog quantity according to test parameter and exports the relay protection module to and test.
4. system according to claim 1 is characterized in that, described first communications interface unit, second communication interface unit are optical fiber communication.
5. system according to claim 1; It is characterized in that; The digital input interface end of described simulated failure generator module is provided with second test contacts by the control of second busy relay; This second busy relay links to each other with Protection Module, and when when test, an action cycle of Microcomputer Protection finishes or when cooperating several action cycle; Then control second busy relay, make second test contacts control the output that the simulating signal generating unit stops or continuing the simulated failure signal according to test period needs disconnection or connection.
6. the method for testing according to the said system of above-mentioned arbitrary claim is characterized in that, may further comprise the steps:
The first step, ALU calculate test parameter and export the simulated failure generator module to by first communications interface unit;
Second step; First communications interface unit of simulated failure generator module transfers to the simulating signal generating unit with test parameter; The simulating signal generating unit calculates digital quantity according to test parameter by CPU; Become analog quantity to pass through the first busy relay contact through digital-to-analog conversion then, carry analog quantity to export Microcomputer Protection unit simulation amount input port to;
The 3rd step; Logic control element is according to artificial selection test template output test command; And export the Embedded PLC control module of relay protection module to through the GOOSE message by the second communication interface unit; The Embedded PLC control module is accomplished first test contacts that empty terminal test environment digitizing connects and start first busy relay according to the test command that receives, and low level simulated failure amount is imported relay module;
The 4th step; Tested Microcomputer Protection is according to the simulated failure amount of input; Carry out the calculating of defencive function property; Finish action cycle or when cooperating several action cycle, then control second busy relay when obtaining the result, make second test contacts according to test period needs break off or connect and control the output that the simulating signal generating unit stops or continuing the simulated failure signal;
The Embedded PLC control module sends the action command signal to logic control element through the second communication interface unit, and logic control element starts and record test process and test result;
Described test parameter comprises: electric current, voltage and/or impedance;
Described test control signal comprises: test template sequence number, enabling signal or stop signal;
Described simulated failure signal comprises: low level signal;
Described action command signal comprises: alerting signal or trip signal.
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| CN 201110221401 CN102323502B (en) | 2011-08-03 | 2011-08-03 | Online closed loop test system for relay protection and test method thereof |
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| CN 201110221401 CN102323502B (en) | 2011-08-03 | 2011-08-03 | Online closed loop test system for relay protection and test method thereof |
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| CN102323502B CN102323502B (en) | 2013-07-31 |
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Cited By (11)
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| CN102768314A (en) * | 2012-07-05 | 2012-11-07 | 四川电力科学研究院 | Double-closed-loop testing device for intelligent substation and control method thereof |
| CN103364663A (en) * | 2013-07-16 | 2013-10-23 | 上海毅昊自动化有限公司 | Intelligent device for simulating transformer substation primary equipment behavior |
| CN104101791A (en) * | 2013-04-11 | 2014-10-15 | 云南电网公司曲靖供电局 | Relay protection device fixed vale automatic test method and system |
| CN104391498A (en) * | 2014-10-22 | 2015-03-04 | 国家电网公司 | Non-intrusive testing system for relay protection device and testing method thereof |
| CN105548742A (en) * | 2015-12-04 | 2016-05-04 | 国家电网公司华东分部 | Remote relay protection test system |
| CN105654821A (en) * | 2014-11-24 | 2016-06-08 | 北京北研兴电力仪表有限责任公司 | Fault simulation apparatus for electrical control system of transformer equipment |
| CN105738739A (en) * | 2016-03-03 | 2016-07-06 | 南京南瑞继保电气有限公司 | Electric power system protective device whole machine intelligent test method and a system |
| CN105896482A (en) * | 2015-01-26 | 2016-08-24 | 国家电网公司 | System for generating transmission line protection module and generation method thereof |
| CN107703397A (en) * | 2017-11-08 | 2018-02-16 | 广东电网有限责任公司中山供电局 | Suitable for normal station and the test device for relay protection of digitizing station |
| CN110471354A (en) * | 2019-08-27 | 2019-11-19 | 小波科技有限公司 | A kind of controlling terminal structure |
| CN112799377A (en) * | 2020-12-30 | 2021-05-14 | 中广核核电运营有限公司 | Ring crane overspeed protection checking system and method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768314B (en) * | 2012-07-05 | 2014-09-24 | 四川电力科学研究院 | Double-closed-loop testing device for intelligent substation and control method thereof |
| CN102768314A (en) * | 2012-07-05 | 2012-11-07 | 四川电力科学研究院 | Double-closed-loop testing device for intelligent substation and control method thereof |
| CN104101791A (en) * | 2013-04-11 | 2014-10-15 | 云南电网公司曲靖供电局 | Relay protection device fixed vale automatic test method and system |
| CN103364663A (en) * | 2013-07-16 | 2013-10-23 | 上海毅昊自动化有限公司 | Intelligent device for simulating transformer substation primary equipment behavior |
| CN103364663B (en) * | 2013-07-16 | 2015-06-17 | 上海毅昊自动化有限公司 | Intelligent device for simulating transformer substation primary equipment behavior |
| CN104391498A (en) * | 2014-10-22 | 2015-03-04 | 国家电网公司 | Non-intrusive testing system for relay protection device and testing method thereof |
| CN105654821A (en) * | 2014-11-24 | 2016-06-08 | 北京北研兴电力仪表有限责任公司 | Fault simulation apparatus for electrical control system of transformer equipment |
| CN105896482A (en) * | 2015-01-26 | 2016-08-24 | 国家电网公司 | System for generating transmission line protection module and generation method thereof |
| CN105896482B (en) * | 2015-01-26 | 2019-03-08 | 国家电网公司 | A kind of system and its generation method generating line protection module |
| CN105548742A (en) * | 2015-12-04 | 2016-05-04 | 国家电网公司华东分部 | Remote relay protection test system |
| CN105548742B (en) * | 2015-12-04 | 2018-11-09 | 国家电网公司华东分部 | System is tested in a distant place for relay protection |
| CN105738739A (en) * | 2016-03-03 | 2016-07-06 | 南京南瑞继保电气有限公司 | Electric power system protective device whole machine intelligent test method and a system |
| CN107703397A (en) * | 2017-11-08 | 2018-02-16 | 广东电网有限责任公司中山供电局 | Suitable for normal station and the test device for relay protection of digitizing station |
| CN110471354A (en) * | 2019-08-27 | 2019-11-19 | 小波科技有限公司 | A kind of controlling terminal structure |
| CN112799377A (en) * | 2020-12-30 | 2021-05-14 | 中广核核电运营有限公司 | Ring crane overspeed protection checking system and method |
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