CN102377175B - Short circuit current limiting device for harmonic suppression and reactive compensation - Google Patents
Short circuit current limiting device for harmonic suppression and reactive compensation Download PDFInfo
- Publication number
- CN102377175B CN102377175B CN201110378970.1A CN201110378970A CN102377175B CN 102377175 B CN102377175 B CN 102377175B CN 201110378970 A CN201110378970 A CN 201110378970A CN 102377175 B CN102377175 B CN 102377175B
- Authority
- CN
- China
- Prior art keywords
- circuit current
- load
- short circuit
- current limiting
- short
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Inverter Devices (AREA)
Abstract
The invention relates to a short circuit current limiting device for harmonic suppression and reactive compensation, belonging to the technical field of fault current limiting. The short circuit current limiting device comprises a short circuit current limiting reactor, a three-phase current converter, a system power supply, a load and a high-pass filter, wherein the short circuit current limiting reactor is connected between the system power supply and the load in series; and the three-phase current converter is connected with the load in parallel through the high-pass filter. When the system works normally, the three-phase current converter is used for performing the reactive compensation and the harmonic suppression at the load side; meanwhile, the corresponding reactive power is injected through the three-phase current converter to compensate the voltage drop generated on a circuit by the short circuit current limiting reactor; when the system is in short circuit at the load side, the three-phase current converter triggers pulse through locking an IGBT (Insulated Gate Bipolar Translator) to quit the operation quickly, and the short circuit current limiting reactor plays the role of current limiting instantly. The short circuit current limiting device for the harmonic suppression and the reactive compensation has the advantage of improving the power supplying reliability and the system stability because the short circuit current is limited quickly and reliably during fault operation and the harmonic suppression and reactive compensation functions of the nonlinear load can be realized.
Description
Technical field
The invention belongs to fault current limitation technical field, the short-circuit current limiting device of a kind of device for harmonic inhibition and reactive power compensation is provided.
Background technology
Along with the expansion of electric power system capacity, short trouble is also more and more serious to the destruction of electric power system and equipment thereof, has caused inconvenience to people's production, life.Traditional fault current limitation device adopts serial connection technology to carry out current limliting, has function singleness, the problem that efficiency is lower.
The invention provides the short-circuit current limiting device of a kind of device for harmonic inhibition and reactive power compensation; not only when being short-circuited fault, carry out the restriction of fault current; and under system normal operation; for load harmonic wave and idle problem, carry out effective harmonic wave inhibition and reactive power compensation; both can avoid too much investment; reduce costs, improved again the reliability of system power supply, protected the equipment in electric power system.
Summary of the invention
The short-circuit current limiting device that the object of the present invention is to provide a kind of device for harmonic inhibition and reactive power compensation, suppresses and short-circuit current limitation for the harmonic wave of electric power system.
The present invention consists of the three-phase converter in parallel based on IGBT device, can when system is normally moved, realize the harmonic wave of load is suppressed and reactive power compensation; When being short-circuited fault, by series reactor, implement metering function rapidly.
The present invention includes short-circuit current limitation reactor 1, three-phase converter 2, system power supply 3, load 4, high pass filter 5; As shown in Figure 1.Between short circuit current limitation reactor 1 series connection access system power supply 3 and load 4, three-phase converter 2 is in parallel with load 4 by high pass filter 5.
A kind of device for harmonic suppresses and the short-circuit current limiting device of reactive power compensation is connected to system power supply) and load 4 between.When system is normally moved, three-phase converter 2 and load 4 parallel runnings, reactive power compensation and the harmonic wave of implementing load side suppress, three-phase converter 2 injects corresponding reactive power according to control command in load side simultaneously, the voltage-drop that compensation series connection short-circuit current limitation reactor 1 on the line produces; When load side is short-circuited, three-phase converter 2 enters trigger impulse blocking, out of service.Because short-circuit current limitation reactor 1 loses compensation, therefore play rapidly the effect of current limliting.The high order harmonic component producing when high pass filter 5 filtering three-phase converters 2 are worked.
The invention has the advantages that: fast and reliable limiting short-circuit current when the short-circuit current limiting device of a kind of device for harmonic inhibition and reactive power compensation not only has failure operation, the effect of the voltage-drop that the current limiting reactor that reduces during normal operation to connect causes, the harmonic wave that can also realize nonlinear load suppresses and no-power compensation function, has improved power supply reliability and the stability of a system.
Accompanying drawing explanation
Fig. 1 is circuit structure diagram of the present invention.Wherein, short-circuit current limitation reactor 1, three-phase converter 2, system power supply 3, load 4, high pass filter 5.
Embodiment
Fig. 1 is a kind of embodiment of the present invention.
The present invention includes short-circuit current limitation reactor 1, three-phase converter 2, system power supply 3, load 4, high pass filter 5; As shown in Figure 1.
Short circuit current current limiting reactor 1 one end is connected with system power supply 3, and the other end is connected with load 4, is connected between system power supply 3 and load 4; Three-phase converter 2 is connected in parallel by high pass filter 5 and load 4; Three-phase converter 2 consists of six IGBT devices and anti-paralleled diode thereof, DC capacitor.Six IGBT and three brachium pontis of anti-paralleled diode composition thereof.Each brachium pontis is in series by upper and lower two IGBT and anti-paralleled diode thereof, and the tie point of two IGBT is brachium pontis output.Three upper and lower end points of brachium pontis are connected respectively to together, form the DC bus of three-phase converter 2, and upper end bus is positive electrode bus, and lower end bus is negative pole bus.DC capacitor is connected between positive electrode bus and negative pole bus according to electric capacity polarity.The output of each brachium pontis is connected to the high pass filter 5 consisting of three filter inductances and filter capacitor, the output that is each brachium pontis is connected to three corresponding filter inductance one end, the other end of three filter inductances is connected respectively to three inputs of load, on three inputs of load, is parallel with three filter capacitors.
Claims (1)
1. a short-circuit current limiting device for device for harmonic inhibition and reactive power compensation, is characterized in that: comprise short-circuit current limitation reactor (1), three-phase converter (2), system power supply (3), load (4), high pass filter (5); Between short circuit current limitation reactor (1) series connection access system power supply (3) and load (4), three-phase converter (2) is in parallel with load (4) by high pass filter (5);
When system is normally moved, load side reactive power compensation implemented by three-phase converter (2) and harmonic wave suppresses; Meanwhile, by three-phase converter, inject corresponding reactive power, the voltage-drop that compensation short-circuit current limitation reactor (1) produces on the line; When system is when load side is short-circuited, three-phase converter (2) is by locking IGBT trigger impulse, out of service rapidly, and short-circuit current limitation reactor is brought into play metering function immediately;
Three-phase converter (2) consists of six IGBT devices and anti-paralleled diode thereof, DC capacitor; Six IGBT and three brachium pontis of anti-paralleled diode composition thereof; Each brachium pontis is in series by upper and lower two IGBT and anti-paralleled diode thereof, and the tie point of two IGBT is brachium pontis output; Three upper and lower end points of brachium pontis are connected respectively to together, form the DC bus of three-phase converter (2), and upper end bus is positive electrode bus, and lower end bus is negative pole bus, and DC capacitor is connected between positive electrode bus and negative pole bus according to electric capacity polarity; The output of each brachium pontis is connected to the high pass filter (5) consisting of three filter inductances and filter capacitor, the output that is each brachium pontis is connected to three corresponding filter inductance one end, the other end of three filter inductances is connected respectively to three inputs of load, on three inputs of load, is parallel with three filter capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110378970.1A CN102377175B (en) | 2011-11-24 | 2011-11-24 | Short circuit current limiting device for harmonic suppression and reactive compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110378970.1A CN102377175B (en) | 2011-11-24 | 2011-11-24 | Short circuit current limiting device for harmonic suppression and reactive compensation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102377175A CN102377175A (en) | 2012-03-14 |
| CN102377175B true CN102377175B (en) | 2014-05-07 |
Family
ID=45795354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110378970.1A Expired - Fee Related CN102377175B (en) | 2011-11-24 | 2011-11-24 | Short circuit current limiting device for harmonic suppression and reactive compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102377175B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882199A (en) * | 2012-09-11 | 2013-01-16 | 吴加林 | Short-trouble current limiter for high-speed self-turn-off device |
| CN102820654B (en) * | 2012-09-12 | 2014-10-29 | 湖南大学 | Cooperative control method of power electronic system |
| CN104065068A (en) * | 2014-05-23 | 2014-09-24 | 国家电网公司 | Short circuit control current limiter device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208803A (en) * | 2011-06-03 | 2011-10-05 | 上海理工大学 | Parallel-connection type current limiter of multi-objective short-circuit current faults |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183791B (en) * | 2007-12-19 | 2012-01-11 | 湖南大学 | Static reactive compensator and active power filter combined operation system and control method thereof |
| CN201417949Y (en) * | 2009-05-22 | 2010-03-03 | 山东鲁电电气集团有限公司 | Hybrid active filter |
| CN102082436B (en) * | 2011-01-26 | 2014-10-15 | 上海交通大学 | Hybrid power filter |
-
2011
- 2011-11-24 CN CN201110378970.1A patent/CN102377175B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208803A (en) * | 2011-06-03 | 2011-10-05 | 上海理工大学 | Parallel-connection type current limiter of multi-objective short-circuit current faults |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102377175A (en) | 2012-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102522882B (en) | Protection circuit of converter power component | |
| CN111416536B (en) | Single-phase double-boost bridgeless five-level rectifier based on bidirectional pipe insertion | |
| WO2021135459A1 (en) | Series-parallel modular multi-level converter with cut-off capability and control method thereof | |
| CN107370119B (en) | Solid-state direct-current breaker and its control method based on capacitive energy storage | |
| CN104009497B (en) | A kind of LVRT Capability of Wind Turbine Generator and active power filter compensating device and changing method | |
| CN203166540U (en) | Combined type high-voltage direct current transmission system | |
| CN102496919B (en) | Load unbalance compensation current limiter | |
| CN101789710A (en) | Solar three-phase grid-connected inverter | |
| CN102694458A (en) | Rapid discharge protection circuit of AC-DC-AC converter | |
| CN102377175B (en) | Short circuit current limiting device for harmonic suppression and reactive compensation | |
| CN102097963B (en) | Three-phase full-controlled rectifying device and rectifying and current-limiting method thereof | |
| CN104104143A (en) | Parallel-connected quiescent voltage restorer for isolating transient voltage fault of power system | |
| CN110943640B (en) | Topological structure of power converter with FC bridge arm redundancy structure of T-type inverter | |
| CN104934995A (en) | UPQC with uninterrupted power source function | |
| CN204633344U (en) | A kind of Research on Unified Power Quality Conditioner with uninterrupted power supply function | |
| CN103560523A (en) | Photovoltaic generator set low-voltage ride-through supporting system based on DVR | |
| CN103545839B (en) | Wind power generating set low-voltage regulation device | |
| CN103023002B (en) | A kind of digital IGBT series average-voltage circuit based on look-up table | |
| CN102496932A (en) | Parallel voltage sag compensation device | |
| CN202872382U (en) | A high-voltage chained STATCOM and a mixed bypass system employed by the high-voltage chained STATCOM | |
| CN204012903U (en) | For isolating the parallel connection type quiescent voltage restorer of electrical power system transient voltage failure | |
| CN202712844U (en) | Device for suppressing transformer neutral point DC current by resistance method, with bypass protection function | |
| CN201682316U (en) | High-frequency soft switching UPS of locomotive air conditioner | |
| CN204706895U (en) | Fossil power plant auxiliary engine frequency converter high-low voltage traversing device | |
| CN103580040A (en) | Self-adaptive compensation device for distribution transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20141124 |
|
| EXPY | Termination of patent right or utility model |