CN201887539U - Intelligent network type simulation circuit breaker device and substation simulation primary system - Google Patents
Intelligent network type simulation circuit breaker device and substation simulation primary system Download PDFInfo
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- CN201887539U CN201887539U CN2010202114930U CN201020211493U CN201887539U CN 201887539 U CN201887539 U CN 201887539U CN 2010202114930 U CN2010202114930 U CN 2010202114930U CN 201020211493 U CN201020211493 U CN 201020211493U CN 201887539 U CN201887539 U CN 201887539U
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Abstract
The utility model discloses an intelligent network type simulation circuit breaker device, comprising an embedded microprocessor and peripheral circuits thereof, a power supply circuit, an input circuit and an output circuit. The intelligent network type simulation circuit breaker device further comprises an output relay, and the output relay at least comprises a tripping contact, a closing contact, an auxiliary contact and a mechanism fault simulation contact; and simulation on various fault types of a circuit breaker in a substation is realized through the switch combination of the relay. The simulation circuit breaker device can simulate the operation characteristics of all switches and knife switches and the input and output contact change process of incoming lines, outgoing lines, transformers and the like of a complete substation, and simultaneously can simulate various mechanical faults of an operation mechanism. Through distributed layout and field control buses, the simulation circuit breaker device can form a substation simulation primary system based on a control network, so as to lay the technical foundation for a distributed simulation control system.
Description
Technical field
The utility model relates to a kind of intelligent network pattern and intends release unit (being called for short the mimic-disconnecting switch device), relates to the substation simulation primary system of realizing based on this mimic-disconnecting switch device simultaneously, belongs to the relay protection of power system simulation technical field.
Background technology
Circuit breaker is power plant, power transformation most important control and protection equipment in the electric power system in one's power, and its effect comprises: (1) according to the needs of power system operation, with part or all of electric equipment, and partly or entirely circuit is thrown people or out of service; (2) when an electric power system part breaks down, it and protective device, automatics match, with the excision rapidly from system of this faulty component; reduce the power failure scope; the accident that prevents enlarges, and all kinds of electric equipments are not damaged in the protection system, guarantees system's fault-free part safe operation.
In the experimental study of power system relay protection device, for fear of dividing repeatedly owing to the total group test that repeats causes circuit breaker/the next inconvenience of crossed belt.People work out the mimic-disconnecting switch device.For example the SFD-9 type primary cut-out analogue means of SiFang Electric Applicance company release is exactly wherein typically a kind of.This analogue means adopts single chip microcomputer as the control core, realize functions such as the setting of simulated high-pressure circuit breaker breaker tripping and closing time, input signal logic control, thereby the breaker tripping and closing of simulated high-pressure circuit breaker action provides one group of direct voltage output of isolating fully simultaneously.The mimic-disconnecting switch device is the auxiliary products of relay protection test system; do not debug well or do not throw under the situation of DC power supply at the primary cut-out of new power plant construction, transformer station especially; using this device to carry out reaying protection test will not influenced by extraneous factor; thereby the shortening debug time improves experiment work efficient.
The electric system simulation technology can be divided into physical analogy and Digital Simulation two big classes.Wherein, the real-timedigital simulation technology obtains application more and more widely in the electric power system experimental study, and the development of computer technology and distributed control technology has further promoted the deep development of electric system simulation technology.For example in application number is 200510018766.3 Chinese invention patent application, the power system real-time simulation technical scheme that a kind of digital-to-analogue is mixed has been proposed.This real-time simulation technical scheme adopts Digital Simulation to external electrical network, local electric power system is adopted physical analogy, to adopt the part of Digital Simulation to replace with equivalent voltage source, the numerical value of equivalent voltage source equals the voltage of Digital Simulation output, the simulation to the part that adopts physical analogy is realized as the portion boundary condition that adopts physical analogy in these threshold voltage sources; To adopt the part of physical analogy to replace with equivalent current source, the numerical value of equivalent current source equals the electric current of physical analogy output, and this equivalence current source is as employing Digital Simulation portion boundary condition, thereby realization is to adopting the simulation of Digital Simulation part.
At present, the electric system simulation technology is taking place by the transformation of integrated emulation control system to the distributed emulation control system.The distributed emulation control system adopts MCU (high speed reduced instruction set computer microprocessor) as kernel, is emulation platform system intelligent, networked, automation, is the main flow of WeiLai Technology development.But, do not satisfy the technical solution that the distributed emulation control system requires in the mimic-disconnecting switch field.
Summary of the invention
Primary technical problem to be solved in the utility model is to provide a kind of intelligent network pattern to intend release unit.
Another one technical problem to be solved in the utility model is to provide a kind of substation simulation primary system of realizing based on above-mentioned mimic-disconnecting switch device.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of intelligent network pattern is intended release unit, be used for realizing emulation and test to transformer station's circuit breaker failure, this device comprises embedded microprocessor and peripheral circuit thereof, power circuit, input circuit, output circuit, described input circuit, described output circuit and described power circuit are connected described embedded microprocessor respectively, it is characterized in that:
Described intelligent network pattern is intended release unit and is also comprised output relay, and described output relay is connected with described embedded microprocessor;
Described output relay comprises tripping operation contact, combined floodgate contact, auxiliary contact and mechanism-trouble simulation contact at least, realizes the various faults type of circuit breaker in the transformer station by the switch combination simulation of relay.
Wherein, described intelligent network pattern is intended release unit and is also comprised communication interface circuit, and described communication interface circuit is formed, and is connected with described embedded microprocessor by input interface chip, two photoelectric isolated chips, transmitting-receiving loop and communication terminal.
The peripheral circuit of described embedded microprocessor comprises reset circuit, clock circuit and decoding chip for driving, described clock circuit is connected the XTAL1 and the XTAL1 pin of described embedded microprocessor, described reset circuit be connected described embedded microprocessor /the RESET pin.
Described decoding chip for driving is 74ALS574.
Described intelligent network pattern is intended the secondary circuit that release unit connects transformer station on the one hand, connects Digital Simulation System by network on the other hand.
A kind of substation simulation primary system, comprise many above-mentioned intelligent network patterns plan release units, each described intelligent network pattern is intended release unit and is inserted fieldbus by communication interface circuit, and is connected with the network of monitoring server, teller work station and switch composition.
Mimic-disconnecting switch device provided by the utility model can simulate a complete transforming plant lead-in, outlet, transformer etc. all switches, disconnecting link operating characteristics and open into leaving the contact change procedure, but the various mechanism fault of simulated operation mechanism simultaneously.By distributed arrangement and field bus control system, this mimic-disconnecting switch device can be formed the substation simulation primary system based on Control Network, thereby is that realization distributed emulation control system has been established technical foundation.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Fig. 1 intends the overall structure schematic diagram of the substation simulation system of release unit for using this intelligent network pattern;
Fig. 2 is the circuit theory diagrams of embedded microprocessor and peripheral circuit thereof in the mimic-disconnecting switch device;
Fig. 3 is the circuit theory diagrams of power circuit in the mimic-disconnecting switch device;
Fig. 4 is the circuit theory diagrams of communication interface circuit in the mimic-disconnecting switch device;
Fig. 5 is the circuit theory diagrams of output relay in the mimic-disconnecting switch device;
Fig. 6 is the schematic diagram based on the substation simulation primary system of mimic-disconnecting switch device realization.
Embodiment
Mimic-disconnecting switch device provided by the utility model mainly is used in the substation simulation work of electric power system, is used to realize emulation and test to circuit breaker failure.As shown in Figure 1; a complete transformer substation system comprises the true telemechanical main frame that is connected with dispatch automated system (factory's station end equipment); relaying protection that is connected by network with this true telemechanical main frame and automatics, measure and control device, supervisory control system also comprise direct current system and AC system in the substation equipment in addition.Above-mentioned direct current system, AC system, relaying protection and automatics, measure and control device etc. all insert the secondary circuit in the transformer substation system.The signal input output interface device connects secondary circuit on the one hand as the part of interface and simulation part, connects the emulation server in the Digital Simulation System on the other hand.This mimic-disconnecting switch device is as another part of interface and simulation part, be connected with secondary circuit on the one hand, also insert on the other hand among the high-speed communication network, link together, realize the substation simulation system that physical analogy combines with Digital Simulation jointly with Digital Simulation System.
This mimic-disconnecting switch device is core with the embedded computer, has realized complete control and management to input signal, output signal and system by hardware circuit and software engineering.It has all loops, the contact of real equipment, the access device terminal, and with the common group screen of circuit breaker terminal box.This mimic-disconnecting switch device not only can mimic-disconnecting switch normal running and action, and can the analog switch tripping, non-full phase, divide slowly, various unusual, failure conditions such as auxiliary contact is not corresponding, and disconnecting link tripping, non-full phase, auxiliary contact army should wait various unusual, failure conditions.Simultaneously, can provide the rhabdion point for relaying protection, automatics, measure and control device etc.
Introduce the concrete composition and the operation principle of this mimic-disconnecting switch device below.
This mimic-disconnecting switch device comprises embedded microprocessor (MCU) and peripheral circuit, power circuit, input circuit, output circuit and output relay, can comprise communication interface circuit etc. in addition.Wherein, input circuit is connected embedded microprocessor with communication interface circuit, and this embedded microprocessor connects output circuit and output relay simultaneously.Power circuit is connected with embedded microprocessor, input circuit, output circuit and output relay respectively, for they provide the power supply supply.The peripheral circuit of above-mentioned embedded microprocessor comprises reset circuit, clock circuit, decoding chip for driving etc.; Input circuit comprises input interface chip, photoelectric isolated chip, input circuit and input terminal, and wherein input terminal is connected on the relaying protection associated terminal; Output circuit comprises output interface chip, photoelectric isolated chip, output loop, output relay and lead-out terminal; Output relay comprises many groups such as tripping operation contact, combined floodgate contact, auxiliary contact and mechanism-trouble simulation contact, is used to realize various faulty circuit combinations.Be described in detail respectively below.
Fig. 2 is the circuit theory diagrams of embedded microprocessor and peripheral circuit thereof.Among this embodiment, embedded microprocessor can adopt ATMEGA128.Crystal oscillator and capacitor C 20, C21 form clock circuit, are connected the XTAL1 and the XTAL1 pin of microprocessor.Diode D25, capacitor C 30 and operational amplifier H1A, H1B form reset circuit, are connected/the RESET pin.The corresponding respectively relevant pins that connects in the microprocessor of three decoding chip for driving UA1～UA3 (being 74ALS574).
Fig. 3 is the circuit theory diagrams of power circuit.Wherein J6 externally exports the 24V direct current, and J7A is used for 24V is converted to the 5V direct current, and J7B externally exports the 5V direct current.
Fig. 4 is the circuit theory diagrams of communication interface circuit.This communication interface circuit connects embedded microprocessor, comprises input interface chip J9, photoelectric isolated chip U16 and U17 (being 6N137), transmitting-receiving loop and communication terminal (being external physical interfaces).Communication interface circuit supports that fieldbus connects into network, realizes background monitoring by software specification and daemon software.The circuit structure of input circuit and output circuit and above-mentioned communication interface circuit are similar, have not just given unnecessary details in detail at this.
Figure 5 shows that the Core Feature element-output relay of this mimic-disconnecting switch device.This output relay comprises many groups such as tripping operation contact, combined floodgate contact, auxiliary contact and mechanism-trouble simulation contact, is used to the fault that realizes that various circuit breakers are possible.These faults comprise: switch tripping, switch malfunction, switch divide slowly, non-full phase, switch operating mechanism fault, SF6 switch slight, seriously leak, oil switch is slight, serious leakage, switch pneumatics, low oil pressure, auxiliary contact are unusual etc.
A distinguishing feature of this mimic-disconnecting switch device is to realize by the switch combination simulation of relay the various faults type of circuit breaker.Particularly, comprise 16 pairs of normal opened contacts in the output relay of this mimic-disconnecting switch device, and can be by the combinational logic circuit of a plurality of contact opens of embedded microprocessor control generation, thereby mimic-disconnecting switch fault, need supervisory control system control to produce the charged contact that closes as low oil pressure, divide circuit breaker contact and the auxiliary contact that needs supervisory control system control to produce Time Delay Opening as switch slowly.Like this, after disposable access, need not to change under the situation of any circuit, can dynamically produce the various faults type and change, and, return to normal by changing the revocable fault of state of relay.Based on above-mentioned design principle, the attainable function of this mimic-disconnecting switch device comprises: three-phase trip(ping) circuit, three-phase closing circuit, every phase trip(ping) circuit can be tripped separately, every phase closing circuit can close a floodgate separately, every phase trip(ping) circuit can be set the trip time separately, every phase closing circuit can be set closing time separately, support three to jump (three-phase trips simultaneously), support three to close that (three-phase closes a floodgate simultaneously) is every supports double jump lock loop, every phase trip(ping) circuit to comprise that 8 pairs of auxiliary idle contacts, every phase closing circuit comprise 4 pairs of auxiliary idle contacts mutually.Support switching mechanism fault simulation, mechanism-trouble simulation comprise 16 pairs of auxiliary idle contacts, 8 pairs often open, 8 pairs normally closed.
As shown in Figure 6, the network that utilizes a monitoring server, teller work station and one/many switches (or hub) to form, and many field bus systems that intelligent network patterns plan release unit is formed, can realize a kind of novel substation simulation primary system.Wherein each intelligent network pattern is intended release unit and is inserted fieldbus by communication interface circuit, and is connected with the network of monitoring server, teller work station and switch (or hub) composition.This emulation primary system is realized background monitoring by communication interface and software specification; and can be by the switch control of software on the backstage to relay; simulation realizes the various failure processes of circuit breaker in the transformer station, has established technical foundation for realizing distributed digital-to-analogue hybrid simulation control system.
Above this mimic-disconnecting switch device is had been described in detail.For one of ordinary skill in the art, any conspicuous change of under the prerequisite that does not deviate from the utility model connotation it being done all will constitute to the utility model infringement of patent right, with corresponding legal responsibilities.
Claims (6)
1. an intelligent network pattern is intended release unit, comprise embedded microprocessor and peripheral circuit thereof, power circuit, input circuit, output circuit, described input circuit, described output circuit and described power circuit are connected described embedded microprocessor respectively, it is characterized in that:
Described intelligent network pattern is intended release unit and is also comprised output relay, and described output relay is connected with described embedded microprocessor;
Described output relay comprises tripping operation contact, combined floodgate contact, auxiliary contact and mechanism-trouble simulation contact at least.
2. intelligent network pattern as claimed in claim 1 is intended release unit, it is characterized in that:
Described intelligent network pattern is intended release unit and is also comprised communication interface circuit, and described communication interface circuit is formed, and is connected with described embedded microprocessor by input interface chip, two photoelectric isolated chips, transmitting-receiving loop and communication terminal.
3. intelligent network pattern as claimed in claim 1 is intended release unit, it is characterized in that:
The peripheral circuit of described embedded microprocessor comprises reset circuit, clock circuit and decoding chip for driving, described clock circuit is connected the XTAL1 and the XTAL1 pin of described embedded microprocessor, described reset circuit be connected described embedded microprocessor /the RESET pin.
4. intelligent network pattern as claimed in claim 3 is intended release unit, it is characterized in that:
Described decoding chip for driving is 74ALS574.
5. intelligent network pattern as claimed in claim 1 is intended release unit, it is characterized in that:
Described intelligent network pattern is intended the secondary circuit that release unit connects transformer station on the one hand, connects Digital Simulation System by network on the other hand.
6. substation simulation primary system is characterized in that:
Comprise many intelligent network patterns plan release units as claimed in claim 1 in the described substation simulation primary system, each described intelligent network pattern is intended release unit and is inserted fieldbus by communication interface circuit, and is connected with the network of monitoring server, teller work station and switch composition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202114930U CN201887539U (en) | 2010-05-24 | 2010-05-24 | Intelligent network type simulation circuit breaker device and substation simulation primary system |
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| CN2010202114930U CN201887539U (en) | 2010-05-24 | 2010-05-24 | Intelligent network type simulation circuit breaker device and substation simulation primary system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982711A (en) * | 2012-11-22 | 2013-03-20 | 郑州万特电气有限公司 | Training device of split-phase breaker spring operation mechanisms |
| CN103019106A (en) * | 2012-12-31 | 2013-04-03 | 湖北省电力公司电力科学研究院 | Digital simulation system and circuit breaker operation cabinet on-off interface implementation method |
| CN103077644A (en) * | 2012-11-22 | 2013-05-01 | 郑州万特电气有限公司 | Split-phase breaker hydraulic operation mechanism training device |
| CN103312035A (en) * | 2013-05-21 | 2013-09-18 | 国家电网公司 | Integrated simulation adjusting-testing system and simulation adjusting-testing method for intelligent substation |
| 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 |
| CN105374262A (en) * | 2015-12-16 | 2016-03-02 | 贵州电网有限责任公司培训与评价中心 | Mixing simulation transformer station information intervention system |
| CN106297506A (en) * | 2016-07-27 | 2017-01-04 | 国网浙江省电力公司金华供电公司 | Distribution true type simulated platform |
| CN108062449A (en) * | 2017-12-28 | 2018-05-22 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Network equivalence method based on PSD-BPA auxiliary switches |
| CN109557841A (en) * | 2018-09-10 | 2019-04-02 | 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 | Self-check system based on wireless device |
| CN113189519A (en) * | 2021-03-29 | 2021-07-30 | 深圳市科陆电子科技股份有限公司 | Power failure detection method and system for platform area outgoing line and storage medium |
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2010
- 2010-05-24 CN CN2010202114930U patent/CN201887539U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077644A (en) * | 2012-11-22 | 2013-05-01 | 郑州万特电气有限公司 | Split-phase breaker hydraulic operation mechanism training device |
| CN103077644B (en) * | 2012-11-22 | 2015-05-13 | 郑州万特电气有限公司 | Split-phase breaker hydraulic operation mechanism training device |
| CN102982711A (en) * | 2012-11-22 | 2013-03-20 | 郑州万特电气有限公司 | Training device of split-phase breaker spring operation mechanisms |
| CN103019106B (en) * | 2012-12-31 | 2015-01-07 | 湖北省电力公司电力科学研究院 | Digital simulation system and circuit breaker operation cabinet on-off interface implementation method |
| CN103019106A (en) * | 2012-12-31 | 2013-04-03 | 湖北省电力公司电力科学研究院 | Digital simulation system and circuit breaker operation cabinet on-off interface implementation method |
| CN103312035B (en) * | 2013-05-21 | 2015-04-22 | 国家电网公司 | Integrated simulation adjusting-testing system and simulation adjusting-testing method for intelligent substation |
| CN103312035A (en) * | 2013-05-21 | 2013-09-18 | 国家电网公司 | Integrated simulation adjusting-testing system and simulation adjusting-testing method for intelligent substation |
| 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 |
| CN105374262A (en) * | 2015-12-16 | 2016-03-02 | 贵州电网有限责任公司培训与评价中心 | Mixing simulation transformer station information intervention system |
| CN106297506A (en) * | 2016-07-27 | 2017-01-04 | 国网浙江省电力公司金华供电公司 | Distribution true type simulated platform |
| CN108062449A (en) * | 2017-12-28 | 2018-05-22 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Network equivalence method based on PSD-BPA auxiliary switches |
| CN109557841A (en) * | 2018-09-10 | 2019-04-02 | 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 | Self-check system based on wireless device |
| CN113189519A (en) * | 2021-03-29 | 2021-07-30 | 深圳市科陆电子科技股份有限公司 | Power failure detection method and system for platform area outgoing line and storage medium |
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Granted publication date: 20110629 Termination date: 20120524 |