CN103269072A - Circuit wave trapping device - Google Patents
Circuit wave trapping device Download PDFInfo
- Publication number
- CN103269072A CN103269072A CN2013100055688A CN201310005568A CN103269072A CN 103269072 A CN103269072 A CN 103269072A CN 2013100055688 A CN2013100055688 A CN 2013100055688A CN 201310005568 A CN201310005568 A CN 201310005568A CN 103269072 A CN103269072 A CN 103269072A
- Authority
- CN
- China
- Prior art keywords
- phase
- phase reactor
- reactor
- phase electric
- electric reactor
- 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
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
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The invention discloses a circuit wave trapping device, which relates to the technical field of electrical equipment. The circuit wave trapping device comprises a first three-phase electric reactor, a second three-phase electric reactor, a third three-phase electric reactor, a fourth three-phase electric reactor, a fifth three-phase electric reactor, a first three-phase capacitor and a second three-phase capacitor, wherein the first three-phase electric reactor, the second three-phase electric reactor and the third three-phase electric reactor are connected in series; the fourth three-phase electric reactor and the first three-phase capacitor are connected in series to form a star connection or delta connection five-time tuning loop; the fifth three-phase electric reactor and the second three-phase capacitor are connected in series to form a star connection or delta connection seven-time tuning loop; the five-time tuning loop is connected to the connection point of the first three-phase electric reactor and the second three-phase electric reactor; and the seven-time tuning loop is connected to the connection point of the second three-phase electric reactor and the third three-phase electric reactor. The circuit wave trapping device disclosed by the invention is used for preventing harmonic wave bigger than fundamental wave from flowing into a power supply system, influence on the power supply system by the harmonic wave generated by electrical load can be effectively inhibited, and the amount of harmonic wave current flowing into the power supply system is reduced.
Description
Technical field
The present invention relates to electrical equipment technical field, be specifically related to a kind of circuit wave arrestment device that high order harmonic component flows into electric power system that limits.
Background technology
Along with the development of national economy, power electronic technology, the needs of industrial and mining enterprises' energy-saving and emission-reduction, variation has also taken place simultaneously in the power load feature of enterprise, in the time of the extensive application of the extensive use of converter technique, electric power Semiconductor Converting Technology, frequency heating device, smelting device, also brought " pollution " to electrical network, harmonic problem is one of problem of electricity consumption " pollution ".
The harmonic wave control mode is divided into active power filtering (APF) and passive filtering (PF), passive filtering adopts the mode in parallel with power load usually, for specific harmonic wave provides low impedance path to reach the effect of filtering, its filter effect depends on: the split ratio of the short-circuit impedance of filtering channel and system, because the filter reactor of filtering channel, the inherent feature of filtering capacitor, can't make the impedance of filtering channel accomplish very low, the harmonic current that flows into filtering channel is limited, so, the filter effect of passive filtration unit (PF) is not satisfactory, and is especially more obvious in the following electric power system of 1000V; Active power filtering (APF) device is not subjected to the influence of system short-circuit impedance, can reach good filter effect, but because price is more expensive at present, the general medium-sized and small enterprises of its price are reluctant to accept.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of circuit wave arrestment device, can effectively suppress the harmonic wave of power load generation to the influence of electric power system, reduces harmonic current and flows into electric power system.
Technical problem to be solved by this invention realizes by the following technical solutions:
A kind of circuit wave arrestment device, the technical scheme of circuit wave arrestment device of the present invention are divided into three-phase three-wire system balanced load and three-phase four-wire system unbalanced load by two types;
For the balanced loaded three line wave arrestment devices of three-phase three-wire system, comprise the first three-phase reactor L1, the second three-phase reactor L2, the 3rd three-phase reactor L3, the 4th three-phase reactor L4, the 5th three-phase reactor L5 and the first three-phase capacitor C1, the second three-phase capacitor C2, the described first three-phase reactor L1, the second three-phase reactor L2, the 3rd three-phase reactor L3 is cascaded, described the 4th three-phase reactor L4 and the first three-phase capacitor C1 are composed in series 5 resonant tank X1 that Y-connection or triangle are connected, described the 5th three-phase reactor L5 and the second three-phase capacitor C2 are composed in series 7 resonant tank X2 that Y-connection or triangle are connected, described 5 resonant tank X1 are connected the tie point of the first three-phase reactor L1 and the second three-phase reactor L2, and described 7 resonant tank X2 are connected the tie point of the second three-phase reactor L2 and the 3rd three-phase reactor L3.
Three-phase and four-line wave arrestment device for the three-phase four-wire system unbalanced load, comprise the first three-phase reactor L1, the second three-phase reactor L2, the 3rd three-phase reactor L3, the 4th three-phase reactor L4, the 5th three-phase reactor L5, single-phase reactor L6 and the first three-phase capacitor C1, the second three-phase capacitor C2, single-phase electricity container C3, the first three-phase reactor L1, the second three-phase reactor L2, the 3rd three-phase reactor L3 series connection, the 4th three-phase reactor L4 and the first three-phase capacitor C1 are composed in series 5 resonant tank X1 that Y-connection or triangle are connected, the 5th three-phase reactor L5 and the second three-phase capacitor C2 are composed in series 7 resonant tank X4 that Y-connection or triangle are connected, single-phase reactor L6 and single-phase electricity container C3 are composed in series zero sequence choke circuit X3,5 resonant tank X1 are connected the tie point of the first three-phase reactor L1 and the second three-phase reactor L2,7 resonant tank X2 are connected the tie point of the second three-phase reactor L2 and the 3rd three-phase reactor L3, be parallel with circuit breaker J1 on the zero sequence choke circuit X3, zero sequence choke circuit X3 is connected to the zero line of power load and the zero line side of electric power system.
For the difference of three-phase and four-line formula wave arrestment device and phase three-wire three formula wave arrestment device with: the basis at phase three-wire three wave arrestment device increases by single-phase reactor (L6) the zero sequence wave arrestment device in parallel with single-phase electricity container (C3), the tuned frequency of zero sequence wave arrestment device is set in power frequency, is used for stoping Zero-pharse harmonic to flow into electrical network.
The reactance Rate of the first three-phase reactor L1 and the 4th three-phase reactor L4 is that the reactance Rate of 3%, the second three-phase reactor L2 and the 5th three-phase reactor L5 is that the reactance Rate of 2%, the three three-phase reactor L3 and unidirectional reactor L6 is 1%.
The invention has the beneficial effects as follows: the present invention is used for stoping greater than first-harmonic (50Hz) harmonic wave inflow electric power system in addition, can effectively suppress the harmonic wave of power load generation to the influence of electric power system, reduce harmonic current and flow into electric power system, be suitable for solving the harmonic problem of electric power variable flow device, as frequency converter, intermediate frequency furnace, milling train, banbury etc.
Description of drawings
Fig. 1 is phase three-wire three Y-connection winding diagram of the present invention;
Fig. 2 connects winding diagram for phase three-wire three triangle of the present invention;
Fig. 3 is three-phase and four-line Y-connection winding diagram of the present invention;
Fig. 4 connects winding diagram for three-phase and four-line triangle of the present invention;
Fig. 5 uses winding diagram for the present invention is used for phase three-wire three load Y-connection;
Fig. 6 connects the application winding diagram for the present invention is used for phase three-wire three load triangle;
Fig. 7 uses winding diagram for the present invention is used for three-phase and four-line load Y-connection;
Fig. 8 connects the application winding diagram for the present invention is used for three-phase and four-line load triangle.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As Fig. 1, Fig. 2, Fig. 5, shown in Figure 6, be connected between electric power system and the power load by electric access point, wherein for the balanced loaded three line wave arrestment devices of three-phase three-wire system, comprise the first three-phase reactor L1, the second three-phase reactor L2, the 3rd three-phase reactor L3, the 4th three-phase reactor L4, the 5th three-phase reactor L5 and the first three-phase capacitor C1, the second three-phase capacitor C2, the described first three-phase reactor L1, the second three-phase reactor L2, the 3rd three-phase reactor L3 is cascaded, described the 4th three-phase reactor L4 and the first three-phase capacitor C1 are composed in series 5 resonant tank X1 that Y-connection or triangle are connected, described the 5th three-phase reactor L5 and the second three-phase capacitor C2 are composed in series 7 resonant tank X2 that Y-connection or triangle are connected, described 5 resonant tank X1 are connected the tie point of the first three-phase reactor L1 and the second three-phase reactor L2, and described 7 resonant tank X2 are connected the tie point of the second three-phase reactor L2 and the 3rd three-phase reactor L3.
As Fig. 3, Fig. 4, Fig. 7, shown in Figure 8, three-phase and four-line wave arrestment device for the three-phase four-wire system unbalanced load, comprise the first three-phase reactor L1, the second three-phase reactor L2, the 3rd three-phase reactor L3, the 4th three-phase reactor L4, the 5th three-phase reactor L5, single-phase reactor L6 and the first three-phase capacitor C1, the second three-phase capacitor C2, single-phase electricity container C3, the first three-phase reactor L1, the second three-phase reactor L2, the 3rd three-phase reactor L3 series connection, the 4th three-phase reactor L4 and the first three-phase capacitor C1 are composed in series 5 resonant tank X1 that Y-connection or triangle are connected, the 5th three-phase reactor L5 and the second three-phase capacitor C2 are composed in series 7 resonant tank X4 that Y-connection or triangle are connected, single-phase reactor L6 and single-phase electricity container C3 are composed in series zero sequence choke circuit X3,5 resonant tank X1 are connected the tie point of the first three-phase reactor L1 and the second three-phase reactor L2,7 resonant tank X2 are connected the tie point of the second three-phase reactor L2 and the 3rd three-phase reactor L3, be parallel with circuit breaker J1 on the zero sequence choke circuit X3, zero sequence choke circuit X3 is connected to the zero line of power load and the zero line side of electric power system.
For the difference of three-phase and four-line formula wave arrestment device and phase three-wire three formula wave arrestment device with: the basis at phase three-wire three wave arrestment device increases by single-phase reactor (L6) the zero sequence wave arrestment device in parallel with single-phase electricity container (C3), the tuned frequency of zero sequence wave arrestment device is set in power frequency, is used for stoping Zero-pharse harmonic to flow into electrical network.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. circuit wave arrestment device, it is characterized in that: comprise first three-phase reactor (L1), second three-phase reactor (L2), the 3rd three-phase reactor (L3), the 4th three-phase reactor (L4), the 5th three-phase reactor (L5) and first three-phase capacitor (C1), second three-phase capacitor (C2), described first three-phase reactor (L1), second three-phase reactor (L2), the 3rd three-phase reactor (L3) is cascaded, described the 4th three-phase reactor (L4) and first three-phase capacitor (C1) are composed in series 5 resonant tanks (X1) that Y-connection or triangle are connected, described the 5th three-phase reactor (L5) and second three-phase capacitor (C2) are composed in series 7 resonant tanks (X2) that Y-connection or triangle are connected, described 5 resonant tanks (X1) are connected the tie point of first three-phase reactor (L1) and second three-phase reactor (L2), and described 7 resonant tanks (X2) are connected the tie point of second three-phase reactor (L2) and the 3rd three-phase reactor (L3).
2. circuit wave arrestment device according to claim 1, it is characterized in that: also comprise zero sequence choke circuit (X3), described zero sequence choke circuit (X3) comprises single-phase reactor (L6) and the single-phase electricity container (C3) that is cascaded, described zero sequence choke circuit (X3) is parallel with circuit breaker (J1), and described zero sequence choke circuit (X3) is connected on the zero line of power load and the zero line side of electric power system.
3. circuit wave arrestment device according to claim 1, it is characterized in that: the reactance Rate of described first three-phase reactor (L1) and the 4th three-phase reactor (L4) is 3%.
4. circuit wave arrestment device according to claim 1, it is characterized in that: the reactance Rate of described second three-phase reactor (L2) and the 5th three-phase reactor (L5) is 2%.
5. circuit wave arrestment device according to claim 1, it is characterized in that: the reactance Rate of described the 3rd three-phase reactor (L3) is 1%.
6. circuit wave arrestment device according to claim 2, it is characterized in that: the reactance Rate of described unidirectional reactor (L6) is 1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100055688A CN103269072A (en) | 2013-01-08 | 2013-01-08 | Circuit wave trapping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100055688A CN103269072A (en) | 2013-01-08 | 2013-01-08 | Circuit wave trapping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103269072A true CN103269072A (en) | 2013-08-28 |
Family
ID=49012686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100055688A Pending CN103269072A (en) | 2013-01-08 | 2013-01-08 | Circuit wave trapping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103269072A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103586A (en) * | 1986-05-27 | 1987-12-09 | 冶金工业部马鞍山钢铁设计研究院 | Dual tunning low energy consumption filtering device and method |
| JP2003102127A (en) * | 2001-09-26 | 2003-04-04 | Shindengen Electric Mfg Co Ltd | Method for controlling active filter apparatus |
| CN200944530Y (en) * | 2006-09-07 | 2007-09-05 | 佛山市顺德区恒导电气科技有限公司 | Power filter |
| CN101593980A (en) * | 2009-07-01 | 2009-12-02 | 江苏省电力公司连云港供电公司 | A kind of novel neutral line triple harmonic current suppressor |
| CN201584892U (en) * | 2009-11-26 | 2010-09-15 | 广州市高澜水技术有限公司 | Series connection filter |
| CN102427233A (en) * | 2011-12-14 | 2012-04-25 | 上海信元瑞电气有限公司 | Power saving device with harmonic suppression and voltage stabilization functions |
| CN203014381U (en) * | 2013-01-08 | 2013-06-19 | 安徽华正电气有限公司 | Line trap |
-
2013
- 2013-01-08 CN CN2013100055688A patent/CN103269072A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103586A (en) * | 1986-05-27 | 1987-12-09 | 冶金工业部马鞍山钢铁设计研究院 | Dual tunning low energy consumption filtering device and method |
| JP2003102127A (en) * | 2001-09-26 | 2003-04-04 | Shindengen Electric Mfg Co Ltd | Method for controlling active filter apparatus |
| CN200944530Y (en) * | 2006-09-07 | 2007-09-05 | 佛山市顺德区恒导电气科技有限公司 | Power filter |
| CN101593980A (en) * | 2009-07-01 | 2009-12-02 | 江苏省电力公司连云港供电公司 | A kind of novel neutral line triple harmonic current suppressor |
| CN201584892U (en) * | 2009-11-26 | 2010-09-15 | 广州市高澜水技术有限公司 | Series connection filter |
| CN102427233A (en) * | 2011-12-14 | 2012-04-25 | 上海信元瑞电气有限公司 | Power saving device with harmonic suppression and voltage stabilization functions |
| CN203014381U (en) * | 2013-01-08 | 2013-06-19 | 安徽华正电气有限公司 | Line trap |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103227581B (en) | Inverter parallel harmonic wave ring current restraining method for controlling harmonic wave droop | |
| Liu et al. | Power quality improvement using controllable inductive power filtering method for industrial DC supply system | |
| CN201219235Y (en) | Device for reducing harmonic wave discharged by UPS to electric network | |
| CN102624001B (en) | Hybrid electric filtering device based on triple harmonic active filter | |
| CN105470963A (en) | Active power filter and control method therefor | |
| CN105490275A (en) | Parallel hybrid active filter and quality detection method thereof | |
| CN104617583B (en) | Mixed type railway electric energy quality control system based on Multi-Function Balancing Transformer | |
| CN104600702B (en) | Induction control filtering system for integrated electric reactor and control method of induction control filtering system | |
| CN108390572A (en) | Active third-harmonic zero-sequence voltage matrix converter input current waveform optimizes topological structure | |
| CN102638047A (en) | Three-phase unified power quality control device with bypass switches | |
| CN203645329U (en) | Improved LCL filter and inverter system | |
| CN205565742U (en) | Mixed electric power equalizer that passive zero sequence filtering technique and active filtering technique combine | |
| CN203014381U (en) | Line trap | |
| CN103683289A (en) | Cophase power supply mode power quality integrated control system of LC coupling electric railway | |
| CN104701847A (en) | Parameter calculating method for induction filtering branch circuit of wind power plant access system | |
| CN205377291U (en) | Parallel -connected hybrid active power filter | |
| CN103269072A (en) | Circuit wave trapping device | |
| CN205992734U (en) | A kind of distribution network active filtering device | |
| CN202872365U (en) | Hybrid electric filter device based on third harmonic active power filter | |
| CN203813687U (en) | Device for increasing output voltage of Z source three-level neutral point clamping type inverter | |
| CN104953597B (en) | It is a kind of that there is the intelligent electric meter system for improving power quality function | |
| CN106169007A (en) | Method calculated by a kind of sensing filtering converter power transformer harmonic current transferometer | |
| CN208797583U (en) | A kind of modular multilevel Active Power Filter-APF based on harmonics compensation | |
| CN203416174U (en) | High-performance static power transformation intermediate frequency power supply | |
| CN208401550U (en) | A kind of double resonance type three phase active electric power filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130828 |