CN201667539U - Intelligent mixed type reactive compensation filtering screen - Google Patents
Intelligent mixed type reactive compensation filtering screen Download PDFInfo
- Publication number
- CN201667539U CN201667539U CN2009203189433U CN200920318943U CN201667539U CN 201667539 U CN201667539 U CN 201667539U CN 2009203189433 U CN2009203189433 U CN 2009203189433U CN 200920318943 U CN200920318943 U CN 200920318943U CN 201667539 U CN201667539 U CN 201667539U
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- type reactive
- filtering screen
- compensation filtering
- filter
- reactive power
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- 238000001914 filtration Methods 0.000 title claims abstract description 16
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000013500 data storage Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000191 radiation effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- 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
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- 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
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model relates to an intelligent mixed type reactive compensation filtering screen, characterized in that, the intelligent mixed type reactive compensation filtering screen is composed of a passive filter, an active filter and a non-linear load, the passive filter is connected with a converting circuit modulus signal, a microprocessor and a coupled circuit control output in turn, the microprocessor is connected with a program memory and a data memory, the active filter is composed of an IGBT three-phase full bridge module. The utility model has advantages that the various capacities can be combined and assembled according to requirements, an interface is simple, the structure is compact, the wire laying is trim, the heat radiation effect is good, the expanding is free, the maintenance is convenient, and the upgrading and the reconstructing are fast and safe.
Description
Technical field
The utility model relates to a kind of mixed type reactive power compensation filtering screen, relates in particular to a kind of Intelligent Hybrid type reactive power compensation filtering screen.
Background technology
Along with the rapid raising of the high speed development and the industrialized level of China's economic, the continuous growth of electric load, a large amount of new equipment and new appliances enter all trades and professions, the load of electric power system is become increasingly complex, and the overwhelming majority have inductance characteristic.As induction motor, power transformer, computer, frequency converter, electric locomotive, air-conditioning etc., these equipment not only will absorb active power from electric power system, but also want absorbing reactive power, to produce the necessary alternating magnetic field of these equipment works, reactive current a large amount of flowing in system increases line loss, the quality of power supply reduces generating, power supply, user three parts produces harmful effect, electric energy is an integral body from producing consumption simultaneously, send out and be in the dynamic equilibrium all the time for electricity consumption, each electricity consumption link all can exert an influence to electric energy, and the electric energy pollution (comprises electric harmonic, voltage fluctuation and flickering imbalance of three-phase voltage), mainly by various nonlinear-loads, impact load and asymmetric load cause, therefore must carry out reactive power compensation and harmonic wave control to system.
The lot of data data is investigated, be the analysis showed that, China's low-voltage distribution network rack weakness, load current is big, and natural power factor is low, and complex structure, the quality of power supply is wayward, reactive power can not get following the tracks of by the long-range conveying of higher level's electrical network, has reduced the economic benefit of operation of power networks, therefore, we have researched and developed passive part is administered is capacitor, the modularized design of reactor series arm, is combined with the novel reactive power compensation filter of source filter in one.
Summary of the invention
The purpose of this utility model provides a kind of Intelligent Hybrid type reactive power compensation filtering screen.
The technical solution adopted in the utility model is:
Intelligent Hybrid type reactive power compensation filtering screen, described Intelligent Hybrid type reactive power compensation filtering screen is made up of passive filter, active filter and nonlinear load, described passive filter is connected successively by change-over circuit modulus signal, microprocessor and coupling circuit control output, microprocessor links to each other with data storage with program storage, and described active filter is made up of IGBT three phase full bridge module.
Described IGBT three phase full bridge module is connected with frequency dividing circuit successively by low pass filter, shaping circuit, PLL circuit.
The utility model has the advantages that: irrelevant with the cabinet type, can be supporting with domestic and international various cabinet types; Composite assembly uses module as playing with building blocks, and can be combined into various capacity as required; Interface is simple, and a module has relatively independent system of one's own, and two interfaces-electrical network interface and control interface externally is provided; Reactive power compensator to the band filter reactance has been save complicated calculating and design especially; Compact conformation, the more traditional fixed installation of single cabinet capacity increases at least one times; Wiring is neat, good heat dissipation effect, and expansion along with the development that enterprise produces, can increase module at any time during the reactive compensation capacity deficiency and carry out dilatation freely; Maintenance is convenient, maintaining, the convenient safety of upgrading.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a theory diagram of the present utility model
Fig. 2 is a PWM controller principle block diagram
Fig. 3 is a three-phase PWM current transformer theory diagram
Fig. 4 is passive link theory diagram
Fig. 5 is a line voltage genlock schematic block circuit diagram
Embodiment
By the higher harmonic components in real-time detection and the analysis load current, provide and the harmonic current components equal and opposite in direction, the offset current that direction is opposite injects electric power system, realize that the filtering high order harmonic component improves power factor, suppress functions such as resonance, the harmonic wave that automatic tracking and compensating changes, have high controllability and fast-response, compensation performance is not subjected to the mains frequency influence of fluctuations, filtering characteristic is not subjected to the influence of system impedance, can eliminate danger with system impedance generation resonance, reach effect idle and that harmonic wave is administered synchronously, reduced the pollution of harmonic wave, made the quality of power supply obtain tangible improvement electrical network.
Shown in Fig. 1-5, Intelligent Hybrid type reactive power compensation filtering screen of the present utility model, Intelligent Hybrid type reactive power compensation filtering screen is made up of passive filter, active filter and nonlinear load, passive filter is connected successively by change-over circuit modulus signal, microprocessor and coupling circuit control output, microprocessor links to each other with data storage with program storage, active filter is made up of IGBT three phase full bridge module, and IGBT three phase full bridge module is connected with frequency dividing circuit successively by low pass filter, shaping circuit, PLL circuit.
Claims (2)
1. Intelligent Hybrid type reactive power compensation filtering is shielded, it is characterized in that described Intelligent Hybrid type reactive power compensation filtering screen is made up of passive filter, active filter and nonlinear load, described passive filter is connected successively by change-over circuit modulus signal, microprocessor and coupling circuit control output, microprocessor links to each other with data storage with program storage, and described active filter is made up of IGBT three phase full bridge module.
2. Intelligent Hybrid type reactive power compensation filtering screen according to claim 1 is characterized in that described IGBT three phase full bridge module is connected with frequency dividing circuit successively by low pass filter, shaping circuit, PLL circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203189433U CN201667539U (en) | 2009-12-30 | 2009-12-30 | Intelligent mixed type reactive compensation filtering screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203189433U CN201667539U (en) | 2009-12-30 | 2009-12-30 | Intelligent mixed type reactive compensation filtering screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201667539U true CN201667539U (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203189433U Expired - Lifetime CN201667539U (en) | 2009-12-30 | 2009-12-30 | Intelligent mixed type reactive compensation filtering screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201667539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712614A (en) * | 2017-03-17 | 2017-05-24 | 保定天威保变电气股份有限公司 | Waveform factor correcting device and waveform factor correcting method |
| CN109167360A (en) * | 2018-08-31 | 2019-01-08 | 山东农业大学 | A kind of electric automobile charging station filter and its Parameters design |
-
2009
- 2009-12-30 CN CN2009203189433U patent/CN201667539U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712614A (en) * | 2017-03-17 | 2017-05-24 | 保定天威保变电气股份有限公司 | Waveform factor correcting device and waveform factor correcting method |
| CN109167360A (en) * | 2018-08-31 | 2019-01-08 | 山东农业大学 | A kind of electric automobile charging station filter and its Parameters design |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER COMPANY STATE GRID CORPORAT Effective date: 20121213 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121213 Address after: 226007 No. 111 middle Youth Road, Jiangsu, Nantong Patentee after: Nantong Power Supply Company, Jiangsu Electric Power Co., Ltd. Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 226007 Jiangsu Province, Nantong City Chongchuan District Youth Road No. 111 Patentee before: Nantong Power Supply Company, Jiangsu Electric Power Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101208 |
|
| CX01 | Expiry of patent term |