CN105471416A - DC circuit breaker - Google Patents
DC circuit breaker Download PDFInfo
- Publication number
- CN105471416A CN105471416A CN201410438537.6A CN201410438537A CN105471416A CN 105471416 A CN105471416 A CN 105471416A CN 201410438537 A CN201410438537 A CN 201410438537A CN 105471416 A CN105471416 A CN 105471416A
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- circuit
- type structure
- diode
- bridge type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
Provided is a DC circuit breaker which is characterized in that the DC circuit breaker is formed by press-fitting fully-controlled elements in series connection and a diode bridge type structure, wherein the diode bridge type structure is formed by four diodes to realize a two-way flow bridge type structure. Each fully-controlled element is provided with an absorption circuit capable of realizing series connection and voltage sharing, wherein the absorption circuit is an RCD circuit and is formed by a resistor, a capacitor and a diode. Compared with the prior art, the DC circuit breaker has the advantage that the diode bridge type structure can realize two-way flow passage; the DC breaker utilizes the controllable switch elements to achieve high turn-off speed, and good consistency and voltage sharing effects of the series-connection electric power electronic parts; and the circuit breaker utilizes the press-fitting fully-controlled elements in series connection to achieve high motion consistence and good dynamic voltage sharing effects.
Description
Technical field
The present invention relates to a kind of DC circuit breaker, be applied to the DC distribution net of the upper and lower electric pressure of 10kV.
Background technology
Along with the development of multiterminal element power transmission and distribution technology, direct-current micro-grid and intelligent power grid technology, DC circuit breaker, as the switchgear carrying, cut-off DC operation branch road normal current and various fault current at the appointed time, is the important means improving direct-flow distribution system stability, reliability and flexibility.The overvoltage problem that the arc extinguishing problem that direct current does not have zero crossing to bring, turn off process produce and energy absorption problem bring great difficulty to development high-voltage large-capacity DC circuit breaker, and DC circuit breaker becomes one of technical bottleneck of restriction direct current network research and apply.
Summary of the invention
The object of this invention is to provide a kind of DC circuit breaker, adopt gate-controlled switch device, turn-off speed is fast, series power electronic device consistency and all press effective.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of DC circuit breaker, is characterized in that, described DC circuit breaker by be connected in series press-fit full control device and diode bridge structure forms, diode bridge structure is made up of four diodes and realizes two-way through-flow bridge architecture.
Described each full control device is equipped with the absorbing circuit that can realize series average-voltage, and described absorbing circuit is RCD circuit, has resistance, electric capacity and diode to form.
Described full control device is IGBT wholly-controled device.
Compared with prior art, advantage of the present invention is:
Diode bridge structure can realize two-way through-flow.Adopt gate-controlled switch device, turn-off speed be fast, series power electronic device consistency and all press effective.It is high that circuit breaker employing press-fits full control devices in series switch element device activity consistency, and dynamic voltage balancing is effective.
Accompanying drawing explanation
Fig. 1 is direct-current breaker topology structure chart.
Fig. 2 is all pressures absorbing circuit figure of DC circuit breaker switching device.
In figure, 1-diode 2-press-fits full control device 3-and all presses absorbing circuit diode 4-all to press absorbing circuit resistance 5-absorbing circuit electric capacity
Embodiment
Below in conjunction with accompanying drawing, technology contents of the present invention is described in further detail.
See Fig. 1, DC circuit breaker, press-fited full control devices switch unit by what connect and for two-way through-flow diode, formed bridge architecture by four diodes and realize two-way through-flow.
See Fig. 2, described each full-controlled switch device is equipped with one and all presses absorbing circuit, and absorbing circuit is RCD circuit, is made up of resistance, electric capacity and diode, selects, effectively can realize series average-voltage according to system operational parameters and equal pressure request.
Diode bridge structure can realize two-way through-flow.Adopt gate-controlled switch device, turn-off speed be fast, series power electronic device consistency and all press effective.It is high that circuit breaker employing press-fits full control devices in series switch element device activity consistency, and dynamic voltage balancing is effective.
Claims (3)
1. a DC circuit breaker, is characterized in that, described DC circuit breaker by be connected in series press-fit full control device and diode bridge structure forms, diode bridge structure is made up of four diodes and realizes two-way through-flow bridge architecture.
2. DC circuit breaker according to claim 1, is characterized in that, described each full control device is equipped with the absorbing circuit that can realize series average-voltage, and described absorbing circuit is RCD circuit, has resistance, electric capacity and diode to form.
3. DC circuit breaker according to claim 1, is characterized in that, described full control device is IGBT wholly-controled device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438537.6A CN105471416A (en) | 2014-08-29 | 2014-08-29 | DC circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438537.6A CN105471416A (en) | 2014-08-29 | 2014-08-29 | DC circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105471416A true CN105471416A (en) | 2016-04-06 |
Family
ID=55608793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410438537.6A Pending CN105471416A (en) | 2014-08-29 | 2014-08-29 | DC circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105471416A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124167A (en) * | 2017-03-31 | 2017-09-01 | 许继电气股份有限公司 | A kind of electronic DC switch and its switch power module |
| CN107732887A (en) * | 2017-10-10 | 2018-02-23 | 许继电气股份有限公司 | A kind of damping module based on switching device series connection |
| CN108233330A (en) * | 2018-01-12 | 2018-06-29 | 许继电气股份有限公司 | A kind of dc circuit breaker switch module and dc circuit breaker |
| CN111600497A (en) * | 2020-04-03 | 2020-08-28 | 清华大学 | Series bidirectional diode bridge converter for inhibiting high-voltage direct-current commutation failure |
-
2014
- 2014-08-29 CN CN201410438537.6A patent/CN105471416A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124167A (en) * | 2017-03-31 | 2017-09-01 | 许继电气股份有限公司 | A kind of electronic DC switch and its switch power module |
| CN107732887A (en) * | 2017-10-10 | 2018-02-23 | 许继电气股份有限公司 | A kind of damping module based on switching device series connection |
| CN108233330A (en) * | 2018-01-12 | 2018-06-29 | 许继电气股份有限公司 | A kind of dc circuit breaker switch module and dc circuit breaker |
| CN108233330B (en) * | 2018-01-12 | 2019-06-21 | 许继电气股份有限公司 | A kind of dc circuit breaker switch block and dc circuit breaker |
| CN111600497A (en) * | 2020-04-03 | 2020-08-28 | 清华大学 | Series bidirectional diode bridge converter for inhibiting high-voltage direct-current commutation failure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204068908U (en) | A kind of DC circuit breaker | |
| CN105471416A (en) | DC circuit breaker | |
| CN105870877A (en) | Thyristor-based passive hybrid direct current circuit breaker and application method therefor | |
| CN104753044A (en) | Topological structure of hybrid all-solid state high-voltage DC breaker | |
| CN103441489B (en) | A kind of MTDC transmission system DC circuit breaker and control method thereof | |
| CN203761046U (en) | Controllable series compensation system | |
| CN103457256A (en) | Direct-current breaker used for multi-terminal direct-current system and control method thereof | |
| CN102044974B (en) | Main circuit topological structure of energy feedback device | |
| CN203645531U (en) | Photovoltaic interface circuit | |
| CN102403726A (en) | Thyristor switched reactive compensation and filter device | |
| CN102013307B (en) | On-load capacity-regulation distributing transformer | |
| CN103457258A (en) | Direct-current breaker used for multi-terminal direct-current system and control method thereof | |
| CN202854295U (en) | High-voltage circuit-breaker transient recovery voltage regulation device | |
| CN205178490U (en) | Novel solid -state fault current limiter of bridge type | |
| CN201742161U (en) | On-load capacitance regulation distribution transformer | |
| CN206422530U (en) | A kind of anti-interference capacitor composite switching device | |
| CN202957609U (en) | 400V grid line dynamic reactive power compensation device | |
| CN207268771U (en) | A kind of single-phase circuit breaker separating brake repeated breakdown analogue experiment installation | |
| CN204407896U (en) | A kind of active power filtering and reactive-compensation comprehensive device | |
| CN203387190U (en) | High-voltage reactive compensator | |
| CN203562785U (en) | Reactive power regulation system of distributed parallel connection structure | |
| CN202906560U (en) | 10kV ring network power supply system | |
| CN204992583U (en) | Parallelly connected active power filter circuit based on three level circuit topology structure | |
| CN202307607U (en) | Switch cabinet | |
| CN203445622U (en) | Static voltage adjusting reactive compensation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160406 |
|
| WD01 | Invention patent application deemed withdrawn after publication |