CN103884982A - Intelligent calibration system of operating panel relay of low-voltage microcomputer protection and monitoring device - Google Patents
Intelligent calibration system of operating panel relay of low-voltage microcomputer protection and monitoring device Download PDFInfo
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- CN103884982A CN103884982A CN201410141177.3A CN201410141177A CN103884982A CN 103884982 A CN103884982 A CN 103884982A CN 201410141177 A CN201410141177 A CN 201410141177A CN 103884982 A CN103884982 A CN 103884982A
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Abstract
本发明涉及一种低压微机保护测控装置操作板继电器智能校验系统，包括上位机、单片机监控装置。上位机中运行有校验软件；单片机监控装置与上位机互连，且单片机监控装置在上位机的控制下产生至少两路直流电流信号和至少一路直流电压信号；单片机监控装置与操作板相互连而实现智能校验系统与待校验的继电器的互连。该智能校验系统采用将继电器接入模拟校验电路的方法对继电器进行自动校验。其可精确地校验典型继电保护产品的操作板上所有的继电器，可广泛应用于继电保护装置的生产和调试中，能够显著提高测试的精确性和安全性。The invention relates to an intelligent verification system for a relay of an operating panel of a low-voltage microcomputer protection measurement and control device, which comprises a host computer and a single-chip microcomputer monitoring device. There is calibration software running in the upper computer; the single-chip monitoring device is interconnected with the upper computer, and the single-chip monitoring device generates at least two DC current signals and at least one DC voltage signal under the control of the upper computer; the single-chip monitoring device and the operation panel are interconnected And realize the interconnection between the intelligent verification system and the relay to be verified. The intelligent calibration system adopts the method of connecting the relay to the analog calibration circuit to automatically check the relay. It can accurately verify all the relays on the operation board of typical relay protection products, and can be widely used in the production and debugging of relay protection devices, which can significantly improve the accuracy and safety of the test.
Description
Technical field
The present invention relates to a kind of for the various relays of the operation panel of low pressure microcomputer protecting controller being carried out to the system of automatic Verification.
Background technology
At present; main flow protection device fabrication producer, operating maintenance department of Utilities Electric Co. and protection plant engineering service link are for the verification of all kinds of relays in the operation circuit of low pressure microcomputer protecting controller; main by external impressed current, voltage method, one by one relay is tested to realize.There is the problems such as test randomness, poor stability, test result out of true in this means of testing.And because the operation panel plug-in unit of different manufacturers has different interfaces, need to convert wiring when all relevant relays are tested verification on operation panel, therefore cannot be efficiently, carry out to robotization the debugging work of protective relaying device.
Summary of the invention
The object of this invention is to provide a kind of can be convenient, accurately to the each relay robotization in low pressure microcomputer protecting controller carry out the system of verification.
For achieving the above object, the technical solution used in the present invention is:
A kind of low pressure microcomputer protecting controller operation panel relay intelligent check system, for the various relays on the operation panel of low pressure microcomputer protecting controller are carried out to automatic Verification, it comprises that operation has the host computer of verification software, microcomputer monitoring device with described host computer interconnection; Described microcomputer monitoring device interconnects mutually with the operation panel with relay to be verified and realizes the interconnection of described intelligent checking system and described relay to be verified;
Described microcomputer monitoring device under the control of described host computer, produces DC current signal and/or d. c. voltage signal is inputted in relay to be verified, gathers working value and/or the rreturn value of described relay under described DC current signal or described d. c. voltage signal simultaneously and sends in described host computer.
Preferably, described microcomputer monitoring device comprise controller, can produce described DC current signal automatic adjusting DC module, can produce automatic adjusting DC voltage module, power amplifier module, A/D change-over circuit, D/A change-over circuit, the input and output circuit of described d. c. voltage signal;
Described controller has three input ends and three output terminals, and first input end of described controller and first output terminal are connected with input end with the output terminal of described host computer respectively; Second input end of second output terminal of described controller and second output terminal are connected with an input end with an output terminal of described operation panel respectively; The input end of the 3rd output terminal of described controller and described automatic adjusting DC module is connected with the input end of described automatic adjusting DC voltage module, the output terminal of the output terminal of described automatic adjusting DC module and described automatic adjusting DC voltage module is successively through described D/A change-over circuit, described power amplifier module and be connected with an input end of described input and output circuit, and an output terminal of described input and output circuit is through described A/D change-over circuit and be connected with the 3rd input end of described controller; Another input end of described input and output circuit and another output terminal are connected with another input end with another output terminal of described operation panel respectively.
Preferably, described microcomputer monitoring device comprises automatic adjusting DC module described in two-way at least and the automatic adjusting DC voltage module described at least one road.
Preferably, described microcomputer monitoring device also comprises the DC voltage module for subsequent use for described d. c. voltage signal for subsequent use for generation of a road.
Preferably, described microcomputer monitoring device also comprises overcurrent and overvoltage crowbar.
Preferably, it also comprises and realizes the interface switching device interconnecting between described microcomputer monitoring device and described operation panel; Described interface switching device comprises the first interface being connected with described microcomputer monitoring device, multiple second interface that can be connected with various described operation panels, and each the second described interface is all connected with described first interface.
Preferably, described host computer is connected by USB interface or network interface with described microcomputer monitoring device.
Because technique scheme is used; the present invention compared with prior art has following advantages: the present invention can system all relays on the operation panel of verification typical case relay protection products accurately; can be widely used in, in the production and debugging of protective relaying device, can significantly improving accuracy and the security of test.
Brief description of the drawings
Accompanying drawing 1 is the composition frame chart of low pressure microcomputer protecting controller operation panel relay intelligent check system of the present invention.
Accompanying drawing 2 is the system chart of low pressure microcomputer protecting controller operation panel relay intelligent check system of the present invention.
Accompanying drawing 3 is the schematic diagram for the simulation checking circuit of trip guard relay or combined floodgate guard relay in low pressure microcomputer protecting controller operation panel relay intelligent method of calibration of the present invention.
Accompanying drawing 4 is the schematic diagram for the simulation checking circuit of tripping position relay or closing operation position relay or hand trip(ping) relay in low pressure microcomputer protecting controller operation panel relay intelligent method of calibration of the present invention.
Accompanying drawing 5 is the schematic diagram for the simulation checking circuit of anti-trip relay in low pressure microcomputer protecting controller operation panel relay intelligent method of calibration of the present invention.
Accompanying drawing 6 is a kind of schematic diagram of low pressure microcomputer protecting controller operation panel.
Embodiment
Below in conjunction with embodiment shown in the drawings, the invention will be further described.
Embodiment mono-: shown in accompanying drawing 6, taking the concrete automatic checkout system method of checking the relay of state's electricity south on PSL-691 route protection operation panel to illustrate as example.Relay on this operation panel comprises tripping operation guard relay TBJ, combined floodgate guard relay HBJ, tripping position relay TWJ, closing operation position relay HWJ, hand trip(ping) relay STJ, anti-trip relay TBJV.
As shown in Figure 1, a kind of for the various relays on the operation panel of low pressure microcomputer protecting controller being carried out to the low pressure microcomputer protecting controller operation panel relay intelligent check system of automatic Verification, it comprises host computer and microcomputer monitoring device.Microcomputer monitoring device interconnects mutually with the operation panel with relay to be verified and realizes the interconnection of this intelligent checking system and relay to be verified.
As shown in Figure 2, in host computer, operation has verification software.And microcomputer monitoring device and host computer are by the interconnection that is connected of USB interface or network interface, this microcomputer monitoring device can produce at least two-way DC current signal and at least one road d. c. voltage signal under the control of host computer, and can gather working value or the rreturn value of relay to be verified.The two-way that concrete, microcomputer monitoring device comprises controller, can produce DC current signal regulates DC module automatically, can produce d. c. voltage signal Yi road regulates DC voltage module, power amplifier module, A/D change-over circuit, D/A change-over circuit, input and output circuit automatically.Controller has three input ends and three output terminals, and first input end of controller is connected with input end with the output terminal of host computer respectively with first output terminal, second input end of second output terminal of controller is connected with an input end with an output terminal of operation panel respectively with second output terminal, the 3rd output terminal of controller is connected with the input end and the automatic input end that regulates DC voltage module that automatically regulate DC module, can will automatically regulate the input end of DC module and automatically regulate DC voltage module to be together integrated in controller, automatically regulate the output terminal of DC module and automatically regulate the output terminal of DC voltage module successively through D/A change-over circuit, power amplifier module and being connected with an input end of input and output circuit, power amplifier module can be integrated in input and output circuit, an output terminal of input and output circuit is connected with the 3rd input end of controller through A/D change-over circuit, another input end of input and output circuit is connected with another input end with another output terminal of operation panel respectively with another output terminal.Microcomputer monitoring device also comprises the DC voltage module for subsequent use for d. c. voltage signal for subsequent use for generation of a road, and the connected mode of this DC voltage module for subsequent use is similar to the connected mode of aforementioned automatic adjusting DC voltage module.Microcomputer monitoring device can also arrange overcurrent and overvoltage crowbar.
Microcomputer monitoring device interconnects by interface switching device mutually with operation panel, thereby realizes the interconnection of intelligent checking system and relay to be verified.Interface switching device comprises the first interface being connected with microcomputer monitoring device, multiple second interface that can be connected with various operation panels, and the second interface is all connected with first interface.
The principle of work of above-mentioned intelligent checking system is summarized as: microcomputer monitoring device produces at least two-way DC current signal and at least one road d. c. voltage signal and inputs in relay to be verified under the control of host computer, gather working value and/or the rreturn value of relay under DC current signal or d. c. voltage signal simultaneously and send in host computer, realizing the robotization verification to relay with this.For example, by interface switching device, certain the voltage driven type relay to be verified on operation panel is accessed in this automatic checkout system, under the control of host computer, by microcomputer monitoring device to the d. c. voltage signal of inputting a particular value in this relay, then be directly connected to the working value of the loop collection relay of controller by relay, or be connected to the rreturn value of collection relay place, the loop circuit of controller via input and output circuit and A/D change-over circuit by relay, judge with this whether relay its checking procedure occurs to have moved under the d. c. voltage signal of this particular value.This automatic Verification method and existing method of calibration are similar, can carry out to relay the verification of qualitativeization.And in order better relay to be realized the verification of quantification, can adopt following method of calibration.
The method is summarized as follows:
(1) in host computer, write based on LabView exploitation for carrying out the control supervisor of automatic Verification.
(2) operation panel is connected with microcomputer monitoring device, the relay on operation panel is connected in the simulation checking circuit generating in host computer by microcomputer monitoring device;
(3) under the control of host computer to input direct-current electric current signal or d. c. voltage signal in relay, detect working value and/or the rreturn value of relay by microcomputer monitoring device;
(4) DC current signal or d. c. voltage signal are increased progressively according to setting step-length, and repeating step (3), until detect that by working value or rreturn value relay moves.
As follows for different relay concrete grammars:
1, tripping operation guard relay TBJ or combined floodgate guard relay HBJ are carried out to automatic Verification
As shown in Figure 3, comprise two parallel branches that are connected between the output terminal of microcomputer monitoring device and one end of the coil of tripping operation guard relay TBJ or the coil of combined floodgate guard relay HBJ for the simulation checking circuit of trip guard relay TBJ or combined floodgate guard relay HBJ, the output terminal of microcomputer monitoring device is to the coil of tripping operation guard relay TBJ or the coil output DC current signal of combined floodgate guard relay HBJ, Article 1, on branch road, be provided with under the control of microcomputer monitoring device can folding single-chip microcomputer output flow control one contact K1, on Article 2 branch road, be serially connected with under the control of microcomputer monitoring device can folding single-chip microcomputer output flow control two point K2 and the action connection point TBJ1 of tripping operation guard relay TBJ or the action connection point HBJ1 of combined floodgate guard relay HBJ, ground connection after the field effect transistor that the other end of the coil of tripping operation guard relay TBJ or the coil of combined floodgate guard relay HBJ is controlled through microcomputer monitoring device and inspection resistance R 1, by whether having electric current in microcomputer monitoring device collection inspection resistance R 1.
Carrying out before automatic Verification, first closed single-chip microcomputer is outputed flow control one contact K1, microcomputer monitoring device produces Yi road and inputs in the coil of tripping operation guard relay TBJ or combined floodgate guard relay HBJ through D/A change-over circuit, power amplifier module and input and output circuit successively compared with little DC current signal, and this DC current signal is outputed flow control two point K2 and the action connection point TBJ1 of tripping operation guard relay TBJ or the action connection point HBJ1 of combined floodgate guard relay HBJ through single-chip microcomputer and flowed in its coil simultaneously.When verification, disconnect single-chip microcomputer and output flow control one contact K1, by whether having electric current to flow through and reach in host computer in A/D change-over circuit back production inspection resistance R 1, judge that with this single-chip microcomputer outputs the branch road at flow control two point K2 place and whether have electric current.If there is electric current, can judge that tripping operation guard relay TBJ or combined floodgate guard relay HBJ have moved and formed self-holding circuit.If there is no electric current, can judge that tripping operation guard relay TBJ or combined floodgate guard relay HBJ do not move, now, increase progressively DC current signal according to the step-length of setting, and repeat above-mentioned decision process, until measure the current value of send as an envoy to tripping operation guard relay TBJ or combined floodgate guard relay HBJ action.The action situation of this current value and relay is rreturn value and the working value of measured relay, the rreturn value recording and working value can be reached in host computer and be analyzed by microcomputer monitoring device, the automatic Verification of realizing the quantification to tripping operation guard relay TBJ or combined floodgate guard relay HBJ with this, draws the action current of relay.
If DC current signal is increased to large but tripping operation guard relay TBJ or still akinesia of combined floodgate guard relay HBJ can be judged verification failure (reason may be that the hardware-in-the-loop of tripping operation guard relay TBJ or combined floodgate guard relay HBJ exists fault).
2, tripping position relay TWJ or closing operation position relay HWJ or hand trip(ping) relay STJ are carried out to automatic Verification
As shown in Figure 4, simulation checking circuit for tripping position relay TWJ or closing operation position relay HWJ or hand trip(ping) relay STJ comprises the loop that is connected in the coil of the output terminal of microcomputer monitoring device and the coil of tripping position relay TWJ or closing operation position relay HWJ or the coil of hand trip(ping) relay STJ, and the output terminal of microcomputer monitoring device is to the coil output dc voltage signal of the coil of tripping position relay TWJ or the coil of closing operation position relay HWJ or hand trip(ping) relay STJ; Whether gather the action connection point TWJ1 of tripping position relay TWJ or the action connection point HWJ1 of closing operation position relay HWJ or the action connection point STJ1 of hand trip(ping) relay STJ by microcomputer monitoring device moves.
Tripping position relay TWJ, closing operation position relay HWJ, hand trip(ping) relay STJ all belong to voltage driven type relay, therefore need the d. c. voltage signal that microcomputer monitoring device is produced to be added on the loop at the coil place of tripping position relay TWJ or closing operation position relay HWJ or hand trip(ping) relay STJ.Then gather the action connection point of each relay by microcomputer monitoring device, can judge with this whether relay moves.If not action increases progressively the d. c. voltage signal that microcomputer monitoring device exports and repeats above-mentioned decision process by setting step-length, until detect the operation voltage of relay or judge verification failure.
3, anti-trip relay TBJV is carried out to automatic Verification
As shown in Figure 5, simulation checking circuit for anti-trip relay TBJV comprises the first loop being connected between the output terminal of microcomputer monitoring device and coil one end of anti-trip relay TBJV, be connected in the second servo loop between the output terminal of microcomputer monitoring device and coil one end of tripping operation guard relay TBJ, be connected in the tertiary circuit between the output terminal of microcomputer monitoring device and coil one end of combined floodgate guard relay HBJ, the output terminal of microcomputer monitoring device is to the coil output dc voltage signal of anti-trip relay TBJV, the output terminal of microcomputer monitoring device is respectively to the coil of tripping operation guard relay TBJ and the coil output DC current signal of combined floodgate guard relay HBJ, on the first loop, be provided with under the control of microcomputer monitoring device can folding single-chip microcomputer output flow control three contact K3, single-chip microcomputer is outputed between flow control three contact K3 and the coil of anti-trip relay TBJV and is provided with two parallel branches, and what in two parallel branches, be respectively arranged with the action connection point TBJ1 of tripping operation guard relay TBJ and anti-trip relay TBJV often opens action connection point TBJV1, on tertiary circuit, be serially connected with under the control of microcomputer monitoring device can folding single-chip microcomputer output the normally closed action connection point TBJV2 of flow control four contact K4, anti-trip relay TBJV, ground connection after the field effect transistor that the other end of the coil of combined floodgate guard relay HBJ is controlled through microcomputer monitoring device and inspection resistance R 1, by whether having electric current in microcomputer monitoring device collection inspection resistance R 1.
When verification, first make microcomputer monitoring device produce a road DC current signal, this DC current signal needs the guard relay TBJ action that makes surely to trip.Meanwhile, produce a d. c. voltage signal by microcomputer monitoring device, and output flow control three contact K3 and be connected to first loop at anti-trip relay TBJV place by single-chip microcomputer.Then another road DC current signal of microcomputer monitoring device being produced (this DC current signal one make surely to close a floodgate guard relay HBJ action) is outputed flow control four contact K4 through single-chip microcomputer and is connected in the tertiary circuit at combined floodgate guard relay HBJ place.In microcomputer monitoring device back production inspection resistance R 1, whether there is electric current, if there is electric current, show that anti-trip relay TBJV does not move, now, increase progressively by the step-length of setting the d. c. voltage signal that exports anti-trip relay TBJV to, and repeat the step of above-mentioned inspection electric current, until detect the current value of anti-trip relay TBJV action.
This intelligent checking system can arrange arbitrarily verification project; use novel unique detection method; the verification of complete operation plate relay, having solved traditional test means can not the systematicness problem to various function relay checkings in protective device operation circuit accurately.This intelligent checking system is taked automatic Verification mode, the verification content of complete operation plate overall process, without changing test connection, overall process is by computer control, avoid because of the different error of test data that produce of testing crew, by the verification loop of simulation, in the test of operation panel current relay, there is currentless situation with judgement, replace routine relay node to move to judge actuating of relay situation, make measuring accuracy higher more correct with data, more correct true in the current relay test figure of mA rank for action current.The debugging work that it can better be applied to low pressure microcomputer protecting controller operation panel, meets Utilities Electric Co.'s standardized work guiding book for the requirement of new throwing equipment test, effectively increases work efficiency and test figure accuracy.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. a low pressure microcomputer protecting controller operation panel relay intelligent check system, for the various relays on the operation panel of low pressure microcomputer protecting controller are carried out to automatic Verification, it is characterized in that: it comprises that operation has the host computer of verification software, microcomputer monitoring device with described host computer interconnection; Described microcomputer monitoring device interconnects mutually with the operation panel with relay to be verified and realizes the interconnection of described intelligent checking system and described relay to be verified;
Described microcomputer monitoring device under the control of described host computer, produces DC current signal and/or d. c. voltage signal is inputted in relay to be verified, gathers working value and/or the rreturn value of described relay under described DC current signal or described d. c. voltage signal simultaneously and sends in described host computer.
2. low pressure microcomputer protecting controller operation panel relay intelligent check system according to claim 1, is characterized in that: described microcomputer monitoring device comprises controller, can produce described DC current signal automatic adjusting DC module, can produce automatic adjusting DC voltage module, power amplifier module, A/D change-over circuit, D/A change-over circuit, the input and output circuit of described d. c. voltage signal;
Described controller has three input ends and three output terminals, and first input end of described controller and first output terminal are connected with input end with the output terminal of described host computer respectively; Second input end of second output terminal of described controller and second output terminal are connected with an input end with an output terminal of described operation panel respectively; The input end of the 3rd output terminal of described controller and described automatic adjusting DC module is connected with the input end of described automatic adjusting DC voltage module, the output terminal of the output terminal of described automatic adjusting DC module and described automatic adjusting DC voltage module is successively through described D/A change-over circuit, described power amplifier module and be connected with an input end of described input and output circuit, and an output terminal of described input and output circuit is through described A/D change-over circuit and be connected with the 3rd input end of described controller; Another input end of described input and output circuit and another output terminal are connected with another input end with another output terminal of described operation panel respectively.
3. low pressure microcomputer protecting controller operation panel relay intelligent check system according to claim 2, is characterized in that: described microcomputer monitoring device comprises automatic adjusting DC module described in two-way at least and the automatic adjusting DC voltage module described at least one road.
4. according to the low pressure microcomputer protecting controller operation panel relay intelligent check system described in claim 2 or 3, it is characterized in that: described microcomputer monitoring device also comprises the DC voltage module for subsequent use for described d. c. voltage signal for subsequent use for generation of a road.
5. according to the low pressure microcomputer protecting controller operation panel relay intelligent check system described in claim 2 or 3 or 4, it is characterized in that: described microcomputer monitoring device also comprises overcurrent and overvoltage crowbar.
6. low pressure microcomputer protecting controller operation panel relay intelligent check system according to claim 1, is characterized in that: it also comprises realizes the interface switching device interconnecting between described microcomputer monitoring device and described operation panel; Described interface switching device comprises the first interface being connected with described microcomputer monitoring device, multiple second interface that can be connected with various described operation panels, and each the second described interface is all connected with described first interface.
7. low pressure microcomputer protecting controller operation panel relay intelligent check system according to claim 1, is characterized in that: described host computer is connected by USB interface or network interface with described microcomputer monitoring device.
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| CN104635112A (en) * | 2015-01-30 | 2015-05-20 | 山东钢铁股份有限公司 | Method and device for finding fault point of circuit breaker closing control loop |
| CN107478921A (en) * | 2017-06-26 | 2017-12-15 | 上海聚仁电力科技有限公司 | A kind of Microcomputer Protection test system |
| CN111220865A (en) * | 2019-11-29 | 2020-06-02 | 山东送变电工程有限公司 | Remote control type three-phase alternating current miniature protection tester |
| CN112986815A (en) * | 2021-04-30 | 2021-06-18 | 帝森克罗德集团有限公司 | Circuit and method for testing anti-tripping loop of circuit breaker |
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| Publication number | Publication date |
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| CN103884982B (en) | 2016-09-28 |
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