CN1598988A - Transverter of mixed soft cut-off current-limiting circuit breaker - Google Patents
Transverter of mixed soft cut-off current-limiting circuit breaker Download PDFInfo
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- CN1598988A CN1598988A CN 200410041562 CN200410041562A CN1598988A CN 1598988 A CN1598988 A CN 1598988A CN 200410041562 CN200410041562 CN 200410041562 CN 200410041562 A CN200410041562 A CN 200410041562A CN 1598988 A CN1598988 A CN 1598988A
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Abstract
The inversion device of the composite soft turn-off current limiting circuit breaker relates to the inversion device used in the composite flexible turn-off current limiting circuit breaker and is composed of the diode bridge circuit and insulated gate bipolar transistor T1. The collector terminal of the insulated gate bipolar transistor connects with the general cathode terminal of the diode bridge circuit D1 and D2 and the emitter terminal of the insulated gate bipolar transistor connects with the general positive terminal of the diode bridge circuit D3 and D4. There is a buffer circuit 1 connecting with the general cathode terminal of the diode bridge circuit D1 and D2 and the positive terminal of D3 and D4 and the buffer circuit is made up of the diode D11, resistance R11 and capacitance C11. The diode connects with the resistance parallelly and then they connect with the capacitance in series. The two ends of the capacitance of the buffer circuit connect with the absorber circuit 2 and reset circuit 3 respectively and parallelly.
Description
Technical field
The invention belongs to the power transmission and distribution device, relate in particular to the current converter of a kind of circuit breaker with mixed soft cut-off current-limiting circuit breaker.
Background technology
Along with the expansion of electric power system scale and increasing of power consumption equipment, the user has higher requirement to power quality.And a large amount of mechanical type circuit breakers that adopt in the ac transmission at present, as oil circuit breaker, air circuit etc., advantage that let it be to the greatest extent clearly, conducting is stable, carrying load ability is strong.But its shortcoming is along with the raising that the quality of power supply is required is also more and more outstanding, because of can not provide in real time, service action flexibly, continuously and fast, accident is enlarged, destroy the stability of a system, be difficult to satisfy the requirement of the breaking capacity that sharply increases: when disconnecting consumers, often there is electric arc to produce, the easy scaling loss of contact, switch off time is long, be difficult to satisfy some power consumers to the quick-action requirement that fault current cut-offs, be necessary to study and increase substantially the technology that circuit breaker cut-offs speed; Noise is arranged in running, and the mechanical electric life-span is restricted etc.Therefore, utilization modern power electronics technology design, development and transformation novel breaker become the target of current circuit breaker development.The foreign scholar has proposed a kind of new type hybrid current limiting circuit breaker at present, it is on the basis of electromagnetic switch, utilize power electronic device in parallel with the contact of electromagnetic switch as non-contact switch, bear steady-state process by electromagnetic switch, and non-contact switch solves the dynamic process of switch, and both form mutual supplement with each other's advantages.The operation principle of mixing type current-limiting circuit breaker is: when control system detects Circuits System when breaking down, it will be exported, when electromagnetic switch is opened, non-contact switch is conducting simultaneously also, utilizes the arc voltage that produces between the electromagnetic switch contact, and the fault current that flows to electromagnetic switch is reduced, and make it to flow to the non-contact switch loop, when fault current flow to this loop fully, non-contact switch is turn-offed the fast shut-off fault current.The energy of putting aside in loop inductance shows with the form of voltage, absorbs through the mode of the Resistor-Capacitor Unit in lightning arrester and the loop with heat energy.Compare with the silent oscillation circuit breaker, the mixing type current-limiting circuit breaker combines the advantage of electromagnetic type and state type circuit breaker, and overcome shortcoming separately, break-make and simple in structure fast, because power electronic device is only in moment conducting that switch cut-offs, almost do not have loss at ordinary times, all have save heavy cooling device.But the at present common solid-state change of current loop modes that adopt hard shutoff, this will produce bigger moment overvoltage on device, damage device easily more.
Summary of the invention
The invention provides a kind of current converter of mixed soft cut-off current-limiting circuit breaker of the transient working characteristic that can improve solid-state switch.
The present invention adopts following technical scheme:
A kind of circuit breaker current converter of mixed soft cut-off current-limiting circuit breaker, form by diode-bridge circuit and igbt T1, the collector terminal of igbt T1 is connected with the common cathode end of D2 with diode-bridge circuit D1, the emitter terminal of igbt T1 is connected with the common anode tap of D4 with diode-bridge circuit D3, cross-over connection buffer circuit 1 between the common anode tap of the common cathode end of diode-bridge circuit D1 and D2 and D3 and D4, buffer circuit 1 is by diode D11, resistance R 11 and capacitor C 11 constitute, diode D11 and resistance R 11 back that is connected in parallel is connected in series with capacitor C 11, and being connected in parallel at the two ends of the capacitor C 11 of buffer circuit 1 absorbs circuit 2 and reset circuit 3.
Compared with prior art, the present invention has following advantage:
The present invention is on the basis of the bridge circuit of IGBT and diode formation, binding buffer loop and absorption circuit are as the change of current loop of mixing type current-limiting circuit breaker, the solid-state switch break-make speed that reason IGBT constitutes is in the microsecond level, so can greatly improve the operating rate of device; Bridge type return can be converted to direct current with interchange, has characteristic of simple structure; The contact that the major loop switch can be protected in the loop of the change of current simultaneously plays the extinguishing arc effect, and this helps prolonging the useful life of equipment.Utilize electric capacity to remedy the difference of reaction speed between IGBT and the absorption circuit as buffer circuit, improved the transient working characteristic of solid-state switch, not only reduced the surge voltage that line inductance produces when turn-offing, and reduced the switching loss of device simultaneously, reduce the influence of electric current and voltage change ratio, improved the reliability of circuit.
Description of drawings
Fig. 1 is a commutation circuit topology structure chart of the present invention.
Fig. 2 is a converter circuit schematic diagram of the present invention.
Fig. 3 has used mixing type current-limiting circuit breaker functional schematic of the present invention.
Fig. 4 is drive circuit control timing and current conversion waveform.
Fig. 5 is the soft cut-off current voltage of an igbt schematic diagram.
Fig. 6 is the curve chart of both end voltage influence when absorbing circuit igbt being turn-offed, and wherein, Fig. 9 (a) does not add the curve chart that absorbs circuit, and Fig. 9 (b) is the curve chart that adds the absorption circuit.
Embodiment
A kind of circuit breaker current converter of mixed soft cut-off current-limiting circuit breaker, form by diode-bridge circuit and igbt T1, the collector terminal of igbt T1 is connected with the common cathode end of D2 with diode-bridge circuit D1, the emitter terminal of igbt T1 is connected with the common anode tap of D4 with diode-bridge circuit D3, cross-over connection buffer circuit 1 between the common anode tap of the common cathode end of diode-bridge circuit D1 and D2 and D3 and D4, buffer circuit 1 is by diode D11, resistance R 11 and capacitor C 11 constitute, after being connected in parallel, diode D11 and resistance R 11 be connected in series with capacitor C 11, be connected in parallel at the two ends of the capacitor C 11 of buffer circuit 1 and absorb circuit 2 and reset circuit 3, absorbing circuit 2 is piezo-resistance, its model can be B32k250, reset circuit 3 is made up of igbt T2 and discharge resistance R31, the emitter terminal of igbt T1 is connected with the end of discharge resistance R31, the collector terminal of igbt T1 is connected with an end of buffer circuit 1 capacitor C 11, the other end of discharge resistance R31 is connected with the other end of buffer circuit 1 capacitor C 11, it is the power device of BSM50GB120DN2 that above-mentioned igbt T1 can adopt model, and it is the power device of BSM50GB120DN2 that igbt T2 can adopt model.
Claims (3)
1, a kind of circuit breaker current converter of mixed soft cut-off current-limiting circuit breaker, form by diode-bridge circuit and igbt (T1), the collector terminal of igbt (T1) is connected with the common cathode end of D2 with diode-bridge circuit D1, the emitter terminal of igbt (T1) is connected with the common anode tap of D4 with diode-bridge circuit D3, it is characterized in that cross-over connection buffer circuit (1) between the common anode tap of the common cathode end of diode-bridge circuit D1 and D2 and D3 and D4, buffer circuit (1) is by diode (D11), resistance (R11) and electric capacity (C11) constitute, diode (D11) and resistance (R11) back that is connected in parallel is connected in series with electric capacity (C11), and being connected in parallel at the two ends of the electric capacity (C11) of buffer circuit (1) absorbs circuit (2) and reset circuit (3).
2, the current converter of mixed soft cut-off current-limiting circuit breaker according to claim 1 is characterized in that absorbing circuit (2) and is piezo-resistance.
3, according to the current converter of claim 2 or 3 described mixed soft cut-off current-limiting circuit breakers, it is characterized in that reset circuit (3) is made up of igbt (T2) and discharge resistance (R31), the emitter terminal of igbt (T1) is connected with an end of discharge resistance (R31), the collector terminal of igbt (T1) is connected with an end of buffer circuit (1) electric capacity (C11), and the other end of discharge resistance (R31) is connected with the other end of buffer circuit (1) electric capacity (C11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100415627A CN100382217C (en) | 2004-07-30 | 2004-07-30 | Transverter of mixed soft cut-off current-limiting circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100415627A CN100382217C (en) | 2004-07-30 | 2004-07-30 | Transverter of mixed soft cut-off current-limiting circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598988A true CN1598988A (en) | 2005-03-23 |
| CN100382217C CN100382217C (en) | 2008-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100415627A Expired - Fee Related CN100382217C (en) | 2004-07-30 | 2004-07-30 | Transverter of mixed soft cut-off current-limiting circuit breaker |
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| CN (1) | CN100382217C (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684230A (en) * | 2012-06-14 | 2012-09-19 | 浙江大学 | Compound complete control solid state switch applied to high-voltage high-capacity alternating/direct current power transmission and distribution system |
| CN103346528A (en) * | 2013-06-27 | 2013-10-09 | 浙江大学 | Current limiting type hybrid direct-current circuit breaker based on power electronic combination switch |
| CN103390901A (en) * | 2013-08-15 | 2013-11-13 | 东南大学 | Comprehensive series compensation voltage ride-through device of wind turbine generator and control method |
| CN103441504A (en) * | 2013-08-15 | 2013-12-11 | 东南大学 | Series compensation low-voltage ride-through device with self-charging function and control method thereof |
| CN105098782A (en) * | 2014-12-24 | 2015-11-25 | 上海电气集团股份有限公司 | Intelligent micro-grid switching and protection device and system |
| CN105356411A (en) * | 2015-11-10 | 2016-02-24 | 南京南瑞继保电气有限公司 | Bridge circuit, high voltage DC circuit breaker and control method thereof |
| CN106558865A (en) * | 2015-09-25 | 2017-04-05 | 全球能源互联网研究院 | A kind of modified cascade full-bridge high voltage DC breaker and its quick coincidence method |
| WO2017063413A1 (en) * | 2015-10-14 | 2017-04-20 | 南京南瑞继保电气有限公司 | High-voltage direct-current breaker and control method therefor |
| CN106771904A (en) * | 2016-11-30 | 2017-05-31 | 中国电力科学研究院 | A kind of system and method for carrying out impact test to controllable arrester in extra-high voltage environment based on sequential |
| CN107769370A (en) * | 2017-10-25 | 2018-03-06 | 清华大学 | A kind of solid state switch based on diode series-parallel connection bridge |
| CN107819460A (en) * | 2017-10-25 | 2018-03-20 | 清华大学 | A kind of composite switch based on coupling negative pressure circuit |
| CN107846211A (en) * | 2017-10-25 | 2018-03-27 | 清华大学 | The composite switch of primary path inline solid state switch |
| CN107896102A (en) * | 2017-10-25 | 2018-04-10 | 清华大学 | A kind of composite switch of primary path inline solid state switch |
| CN107896101A (en) * | 2017-10-25 | 2018-04-10 | 清华大学 | A kind of composite switch based on coupling negative pressure circuit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87204010U (en) * | 1987-03-17 | 1988-04-06 | 卢尊甫 | Multifunctional speedy fault circuit breaker |
| US5652688A (en) * | 1995-09-12 | 1997-07-29 | Schweitzer Engineering Laboratories, Inc. | Hybrid circuit using miller effect for protection of electrical contacts from arcing |
| US5703743A (en) * | 1996-04-29 | 1997-12-30 | Schweitzer Engineering Laboratories, Inc. | Two terminal active arc suppressor |
-
2004
- 2004-07-30 CN CNB2004100415627A patent/CN100382217C/en not_active Expired - Fee Related
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684230A (en) * | 2012-06-14 | 2012-09-19 | 浙江大学 | Compound complete control solid state switch applied to high-voltage high-capacity alternating/direct current power transmission and distribution system |
| CN103346528A (en) * | 2013-06-27 | 2013-10-09 | 浙江大学 | Current limiting type hybrid direct-current circuit breaker based on power electronic combination switch |
| CN103390901A (en) * | 2013-08-15 | 2013-11-13 | 东南大学 | Comprehensive series compensation voltage ride-through device of wind turbine generator and control method |
| CN103441504A (en) * | 2013-08-15 | 2013-12-11 | 东南大学 | Series compensation low-voltage ride-through device with self-charging function and control method thereof |
| CN103441504B (en) * | 2013-08-15 | 2015-11-18 | 东南大学 | There is series compensation low voltage ride through device and the control method of self-charging function |
| CN103390901B (en) * | 2013-08-15 | 2016-06-22 | 东南大学 | The comprehensive series compensating voltage traversing device of Wind turbines and control method |
| CN105098782A (en) * | 2014-12-24 | 2015-11-25 | 上海电气集团股份有限公司 | Intelligent micro-grid switching and protection device and system |
| CN106558865B (en) * | 2015-09-25 | 2019-03-15 | 全球能源互联网研究院 | A kind of modified cascade full-bridge high voltage DC breaker and its quick coincidence method |
| CN106558865A (en) * | 2015-09-25 | 2017-04-05 | 全球能源互联网研究院 | A kind of modified cascade full-bridge high voltage DC breaker and its quick coincidence method |
| EP3355431A4 (en) * | 2015-09-25 | 2018-10-24 | Global Energy Interconnection Research Institute Co., Ltd. | Cascaded full-bridge high-voltage dc circuit breaker, quick reclosing method, and storage medium |
| WO2017063413A1 (en) * | 2015-10-14 | 2017-04-20 | 南京南瑞继保电气有限公司 | High-voltage direct-current breaker and control method therefor |
| CN105356411A (en) * | 2015-11-10 | 2016-02-24 | 南京南瑞继保电气有限公司 | Bridge circuit, high voltage DC circuit breaker and control method thereof |
| CN105356411B (en) * | 2015-11-10 | 2018-03-13 | 南京南瑞继保电气有限公司 | A kind of bridge circuit, high voltage DC breaker and its control method |
| CN106771904A (en) * | 2016-11-30 | 2017-05-31 | 中国电力科学研究院 | A kind of system and method for carrying out impact test to controllable arrester in extra-high voltage environment based on sequential |
| CN107846211A (en) * | 2017-10-25 | 2018-03-27 | 清华大学 | The composite switch of primary path inline solid state switch |
| CN107896102A (en) * | 2017-10-25 | 2018-04-10 | 清华大学 | A kind of composite switch of primary path inline solid state switch |
| CN107896101A (en) * | 2017-10-25 | 2018-04-10 | 清华大学 | A kind of composite switch based on coupling negative pressure circuit |
| CN107819460A (en) * | 2017-10-25 | 2018-03-20 | 清华大学 | A kind of composite switch based on coupling negative pressure circuit |
| CN107769370A (en) * | 2017-10-25 | 2018-03-06 | 清华大学 | A kind of solid state switch based on diode series-parallel connection bridge |
| CN107819460B (en) * | 2017-10-25 | 2019-10-29 | 清华大学 | A kind of composite switch based on coupling negative pressure circuit |
| CN107896101B (en) * | 2017-10-25 | 2019-10-29 | 清华大学 | A kind of composite switch based on coupling negative pressure circuit |
| CN107846211B (en) * | 2017-10-25 | 2020-09-08 | 清华大学 | Hybrid switch with main path connected in series with solid-state switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100382217C (en) | 2008-04-16 |
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