CN204832449U - Electronic type direct current breaker detection device and system - Google Patents
Electronic type direct current breaker detection device and system Download PDFInfo
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- CN204832449U CN204832449U CN201520580536.5U CN201520580536U CN204832449U CN 204832449 U CN204832449 U CN 204832449U CN 201520580536 U CN201520580536 U CN 201520580536U CN 204832449 U CN204832449 U CN 204832449U
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Abstract
The utility model relates to an electronic type direct current breaker detection device and system. Detection device is including the release circuit module and a control switch of the unnecessary electric energy of power supply that is used for for the power supply module of electronic type direct current breaker provide voltage and electric current, is used for releasing, and the circuit module that releases is parallelly connected with the power supply module, and a control switch and electronic type direct current breaker concatenate on the direct current breaker 2 that the power supply module formed, and the circuit module that releases includes the 2nd control switch, and the 2nd control switch and power supply module connect in parallel. Detecting system includes above -mentioned detection device and electronic type direct current breaker. According to electronic type direct current breaker's constitutional features, provide an electronic type direct current breaker detection device, can effectively detect electronic type direct current breaker.
Description
Technical field
The utility model relates to a kind of electronic direct-current detection device for circuit breaker and system, belongs to technical field of HVDC transmission.
Background technology
HVDC Transmission Technology develops comparative maturity, but flexible relative to AC transmission system, various bind mode, the straight-flow system overwhelming majority run in the world at present still adopts two end systems, and its main cause is exactly lack practical high voltage DC breaker.Along with further developing of HVDC Transmission Technology, multi-terminal HVDC transmission and direct current transmission and distribution electrical network must become new developing direction.And as playing the device for switching of control and protection double action in system, the development tool of high voltage DC breaker is of great significance.
High-voltage electronic direct-current circuit breaker topological structure as shown in Figure 1, it is made up of the high speed machine switch QS main electronic switch V2 in parallel again that to connect after an auxiliary electron switch V1, auxiliary electron switch V1 is made up of the semiconductor devices of single or multiple parallel connection, its off state voltage is lower, to ensure low-loss when normally running, main electronic switch V2 is composed in series by multi-level semiconductor device, can bear higher voltage.
During normal operation, high speed machine switch QS closes, and V1 is open-minded for auxiliary electron switch, and main electronic switch V2 turns off, and the branch road that electric current is connected from auxiliary electron switch V1 and high speed machine switch QS flows through, and loss is less.During electronic direct-current breaker closing, first open main electronic switch V2, electric current flows through main electronic switch branch road, then opens auxiliary electron switch V1 and closed high speed machine switch QS, then main electronic switch V2 is turned off, the branch road that current transfer is connected to auxiliary electron switch V1 and high speed machine switch QS.During separating brake, first open main electronic switch V2, turn off auxiliary electron switch V1 again, force current transfer to main electronic switch branch road, after electric current completes transfer, disconnect high speed machine switch QS, after waiting high speed mechanical switch QS to disconnect completely to possess and bearing voltage capability, turn off main electronic switch V2, complete the separating brake process of electronic direct-current isolating switch.
Because the ingredient in electronic direct-current isolating switch is electronic devices and components mostly, just can not detect according to the standard of electromagnetic breaker conventional at present and pick-up unit when carrying out Performance Detection.
And from high-voltage electronic direct-current circuit breaker principle of work, complete its point, close a floodgate and test, hookup needs to provide DC high voltage and big current.
Utility model content
The purpose of this utility model is to provide a kind of electronic direct-current detection device for circuit breaker, and the pick-up unit in order to solve traditional electromagnetic breaker can not be used in the problem on electronic direct-current isolating switch.Meanwhile, the utility model provides a kind of electronic direct-current isolating switch detection system.
For achieving the above object, scheme of the present utility model comprises a kind of electronic direct-current detection device for circuit breaker, comprise for providing the power supply module of voltage and current for electronic direct-current isolating switch, for the leadage circuit module of the unnecessary electric energy of described power supply module of releasing and the first gauge tap, described leadage circuit module and described power supply wired in parallel, described power supply module has two ports, described two ports connect a current supply circuit, and described first gauge tap and electronic direct-current isolating switch are serially connected on described current supply circuit; Described leadage circuit module comprises the second gauge tap, described second gauge tap and described power supply wired in parallel.
Described power supply module comprises charge power supply, charge switch and power supply electric capacity, described power supply electric capacity has two interfaces, described two interfaces connect a charge circuit, described charge power supply and charge switch are serially connected on described charge circuit, and two interfaces of described power supply electric capacity are two ports of described power supply module.
Described current supply circuit is also serially connected with inductance.
Described first gauge tap is thyristor.
Described second gauge tap is IGBT, and described IGBT and described power supply wired in parallel, described IGBT is in parallel with a diode reverse.
A kind of electronic direct-current isolating switch detection system, described detection system comprises electronic direct-current detection device for circuit breaker and electronic direct-current isolating switch, described pick-up unit comprises the power supply module for providing voltage and current for electronic direct-current isolating switch, for leadage circuit module and first gauge tap of the unnecessary electric energy of described power supply module of releasing, described leadage circuit module and described power supply wired in parallel, described power supply module has two ports, described two ports connect a current supply circuit, described first gauge tap and electronic direct-current isolating switch are serially connected on described current supply circuit, described leadage circuit module comprises the second gauge tap, described second gauge tap and described power supply wired in parallel.
Described power supply module comprises charge power supply, charge switch and power supply electric capacity, described power supply electric capacity has two interfaces, described two interfaces connect a charge circuit, described charge power supply and charge switch are serially connected on described charge circuit, and two interfaces of described power supply electric capacity are two ports of described power supply module.
Described current supply circuit is also serially connected with inductance.
Described first gauge tap is thyristor.
Described second gauge tap is IGBT, and described IGBT and described power supply wired in parallel, described IGBT is in parallel with a diode reverse.
First, according to the architectural feature of electronic direct-current isolating switch, the utility model is specifically for a kind of electronic direct-current detection device for circuit breaker that this architectural feature provides, and can effectively detect electronic direct-current isolating switch.
And, this device comprises the power supply module for providing voltage and current for electronic direct-current isolating switch, and use electric capacity as power supply, utilize electric capacity can provide the characteristic of high voltage and big current, detect required high voltage and big current for electronic direct-current isolating switch provides, Parameter Conditions the most basic during detection is met.
Be capacitor charging by special charge power supply, electric capacity can drop into detection at any time, and, by controlling the gauge tap on current supply circuit, detecting required high voltage and big current for electronic direct-current isolating switch provides at any time, meeting the property at any time of detection.
In addition, the two ends of electric capacity are parallel with leadage circuit module, upon completion of the assays, by dropping into this leadage circuit module, are released by the unnecessary electric energy on electric capacity.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of high-voltage electronic direct-current circuit breaker;
Fig. 2 is the one-piece construction schematic diagram of electronic direct-current isolating switch detection system;
Fig. 3 is the circuit diagram of electronic direct-current isolating switch detection system.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Electronic direct-current isolating switch detection system embodiment
As shown in Figure 2, be the one-piece construction schematic diagram of electronic direct-current isolating switch detection system.Electronic direct-current isolating switch detection system comprises pick-up unit and electronic direct-current isolating switch, electronic direct-current detection device for circuit breaker comprises for providing the power supply module of voltage and current for electronic direct-current isolating switch, for the leadage circuit module of the unnecessary electric energy of power supply module of releasing and the first gauge tap, leadage circuit module and power supply wired in parallel, power supply module has two ports, these two ports connect a current supply circuit, and the first gauge tap and electronic direct-current isolating switch are serially connected on this current supply circuit.
As shown in Figure 3, power supply module is made up of charge power supply U1, current-limiting resistance R1, disconnector QS1 and Capacitor banks C, charge power supply U1 is in parallel with Capacitor banks C with the series circuit of current-limiting resistance R1, disconnector QS1, and the two ends of Capacitor banks C are the output terminal of power supply module.The capacity of Capacitor banks C is adjustable, to be suitable for the demand of different tests voltage, electric current; Capacitor banks C charging process is controlled, can charge to the voltage tested and specify by control capacitor group C.
Unnecessary electric energy can be released by leadage circuit module by Capacitor banks C.Leadage circuit module is made up of discharge resistance R2, IGBTV4, diode D1 and diode D2, and wherein, discharge resistance R2, IGBTV4 and diode D2 connect, and this series circuit is connected in parallel on the two ends of Capacitor banks C.Diode D1 is connected in reverse parallel in the two ends of IGBTV4, the diode D1 of reverse parallel connection can prevent the two ends reverse breakdown of IGBT, two ends due to IGBT are inductive load, when IGBT ends, because the electric current flowing through inductive load can not suddenly change, an instantaneous pressure will be produced at the two ends of inductive load, under this High Pressure, diode D1 conducting, can the circuit of conducting in time, avoids IGBT to be punctured by instantaneous pressure.
Above-mentioned first gauge tap is thyristor V3, and the supply line of electronic direct-current isolating switch is also serially connected with reactor L.When detecting electronic direct-current isolating switch, coordinate electronic direct-current circuit-breaker switching on-off sequential, control thyristor V3, Capacitor banks C is discharged by reactor L, for test product isolating switch provides DC high voltage and big current; After detection terminates, open IGBT switch valve V4, Capacitor banks C is discharged by bleed-off circuit.
Before detecting, the main electronic switch V2 in electronic direct-current isolating switch is at off state, and auxiliary electron switch V1 is at off state, and high speed machine switch QS is in a point position; And in this pick-up unit, thyristor V3 is in off-state, IGBT switching tube V4 is in off-state, and closed disconnector QS1, charge power supply is that Capacitor banks C charges to given voltage value, then disconnects QS1.
Then the switching carrying out isolating switch detects, and concrete testing process is as follows:
First, carry out combined floodgate to detect:
To thyristor V3 trigger pip, this current supply circuit of conducting, after thyristor V3 receives trigger pip during a period of time, open the main electronic switch V2 in isolating switch, after main electronic switch V2 opens, main electronic switch V2 in Capacitor banks C, thyristor V3, reactor L and isolating switch forms discharge loop, detects electric current and flows through main electronic switch V2 branch road.After main electronic switch V2 opens, close high speed machine switch QS, open auxiliary electron switch V1, after high speed machine switch QS closes, turn off main electronic switch V2, detect electric current to be transferred in the series arm of auxiliary electron switch V1 and high speed machine switch QS by main electronic switch V2 branch road, electronic direct-current breaker closing completes.
After running a period of time, start separating brake and detect:
When having carried out closing a floodgate detection, main electronic switch V2 is at off state, and auxiliary electron switch V1 is at opening state, and high speed machine switch QS, in co-bit, detects electric current and flows through auxiliary electron switch V1 and high speed machine switch QS series arm.
Separating brake detects and starts, first open main electronic switch V2, after main electronic switch V2 opens, turn off auxiliary electron switch V1, detect current transfer to main electronic switch V2 branch road, then disconnect high speed machine switch QS, after high speed machine switch QS disconnects, turn off main electronic switch V2, main electronic switch V2 closes and has no progeny, and electronic direct-current breaker open operation completes.
When main electronic switch V2 turns off, the energy that reactor L stores is discharged by the lightning arrester F1 be connected in parallel on electronic direct-current isolating switch.
After whole detection terminates, to IGBT switching tube V4 trigger pip to open IGBT switching tube V4, Capacitor banks C, discharge resistance R2, IGBT switching tube V4 and diode D2 form a bleed-off circuit, and its electric energy unnecessary is with it released by this bleed-off circuit by Capacitor banks C.
In above-described embodiment, power supply module is made up of charge power supply U1, current-limiting resistance R1, disconnector QS1 and Capacitor banks C, and as other embodiment, power supply module can also be directly a DC power supplier or ACDC modular converter.
In above-described embodiment, the first gauge tap is thyristor V3, and as other embodiment, the first gauge tap can also be metal-oxide-semiconductor, triode or other controlled tr tubes.
In above-described embodiment, the second gauge tap is IGBT switching tube, and as other embodiment, the second gauge tap also can also be metal-oxide-semiconductor, triode or other controlled tr tubes.
In above-described embodiment, current supply circuit Shanghai is serially connected with inductance, as other embodiment, this current supply circuit can not also arrange inductance.
Electronic direct-current detection device for circuit breaker embodiment
This electronic direct-current detection device for circuit breaker embodiment is described in detail in said system embodiment, does not repeat here.
Be presented above concrete embodiment, but the utility model is not limited to described embodiment.Basic ideas of the present utility model are above-mentioned basic scheme, and for those of ordinary skill in the art, according to instruction of the present utility model, designing the model of various distortion, formula, parameter does not need to spend creative work.The change carried out embodiment when not departing from principle of the present utility model and spirit, amendment, replacement and modification still fall in protection domain of the present utility model.
Claims (10)
1. an electronic direct-current detection device for circuit breaker, it is characterized in that, comprise for providing the power supply module of voltage and current for electronic direct-current isolating switch, for the leadage circuit module of the unnecessary electric energy of described power supply module of releasing and the first gauge tap, described leadage circuit module and described power supply wired in parallel, described power supply module has two ports, described two ports connect a current supply circuit, and described first gauge tap and electronic direct-current isolating switch are serially connected on described current supply circuit; Described leadage circuit module comprises the second gauge tap, described second gauge tap and described power supply wired in parallel.
2. electronic direct-current detection device for circuit breaker according to claim 1, it is characterized in that, described power supply module comprises charge power supply, charge switch and power supply electric capacity, described power supply electric capacity has two interfaces, described two interfaces connect a charge circuit, described charge power supply and charge switch are serially connected on described charge circuit, and two interfaces of described power supply electric capacity are two ports of described power supply module.
3. electronic direct-current detection device for circuit breaker according to claim 1, is characterized in that, described current supply circuit is also serially connected with inductance.
4. electronic direct-current detection device for circuit breaker according to claim 1, is characterized in that, described first gauge tap is thyristor.
5. electronic direct-current detection device for circuit breaker according to claim 1, is characterized in that, described second gauge tap is IGBT, and described IGBT and described power supply wired in parallel, described IGBT is in parallel with a diode reverse.
6. an electronic direct-current isolating switch detection system, it is characterized in that, described detection system comprises electronic direct-current detection device for circuit breaker and electronic direct-current isolating switch, described pick-up unit comprises the power supply module for providing voltage and current for electronic direct-current isolating switch, for leadage circuit module and first gauge tap of the unnecessary electric energy of described power supply module of releasing, described leadage circuit module and described power supply wired in parallel, described power supply module has two ports, described two ports connect a current supply circuit, described first gauge tap and electronic direct-current isolating switch are serially connected on described current supply circuit, described leadage circuit module comprises the second gauge tap, described second gauge tap and described power supply wired in parallel.
7. electronic direct-current isolating switch detection system according to claim 6, it is characterized in that, described power supply module comprises charge power supply, charge switch and power supply electric capacity, described power supply electric capacity has two interfaces, described two interfaces connect a charge circuit, described charge power supply and charge switch are serially connected on described charge circuit, and two interfaces of described power supply electric capacity are two ports of described power supply module.
8. electronic direct-current isolating switch detection system according to claim 6, is characterized in that, described current supply circuit is also serially connected with inductance.
9. electronic direct-current isolating switch detection system according to claim 6, is characterized in that, described first gauge tap is thyristor.
10. electronic direct-current isolating switch detection system according to claim 6, is characterized in that, described second gauge tap is IGBT, and described IGBT and described power supply wired in parallel, described IGBT is in parallel with a diode reverse.
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| CN201520580536.5U CN204832449U (en) | 2015-08-04 | 2015-08-04 | Electronic type direct current breaker detection device and system |
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| CN201520580536.5U CN204832449U (en) | 2015-08-04 | 2015-08-04 | Electronic type direct current breaker detection device and system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664745A (en) * | 2017-08-18 | 2018-02-06 | 全球能源互联网研究院有限公司 | A kind of dc circuit breaker testing equipment |
| CN108957303A (en) * | 2017-05-26 | 2018-12-07 | 许继电气股份有限公司 | A kind of high voltage DC breaker electric current resistance test circuit and method |
| CN110118929A (en) * | 2018-08-13 | 2019-08-13 | 清华大学 | One kind cut-offfing equipment testing device and test method |
| CN112824917A (en) * | 2019-11-20 | 2021-05-21 | 西安高压电器研究院有限责任公司 | Performance detection system of high-voltage direct-current circuit breaker |
-
2015
- 2015-08-04 CN CN201520580536.5U patent/CN204832449U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957303A (en) * | 2017-05-26 | 2018-12-07 | 许继电气股份有限公司 | A kind of high voltage DC breaker electric current resistance test circuit and method |
| CN108957303B (en) * | 2017-05-26 | 2020-08-25 | 许继电气股份有限公司 | High-voltage direct-current breaker current tolerance test loop and method |
| CN107664745A (en) * | 2017-08-18 | 2018-02-06 | 全球能源互联网研究院有限公司 | A kind of dc circuit breaker testing equipment |
| CN110118929A (en) * | 2018-08-13 | 2019-08-13 | 清华大学 | One kind cut-offfing equipment testing device and test method |
| CN110118929B (en) * | 2018-08-13 | 2021-01-22 | 清华大学 | Testing device and testing method for cut-off equipment |
| CN112824917A (en) * | 2019-11-20 | 2021-05-21 | 西安高压电器研究院有限责任公司 | Performance detection system of high-voltage direct-current circuit breaker |
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