CN102820129A - Filtering type power transformer integrated system and implementation method thereof - Google Patents
Filtering type power transformer integrated system and implementation method thereof Download PDFInfo
- Publication number
- CN102820129A CN102820129A CN2012103440606A CN201210344060A CN102820129A CN 102820129 A CN102820129 A CN 102820129A CN 2012103440606 A CN2012103440606 A CN 2012103440606A CN 201210344060 A CN201210344060 A CN 201210344060A CN 102820129 A CN102820129 A CN 102820129A
- Authority
- CN
- China
- Prior art keywords
- winding
- transformer
- shielding
- pressure
- constructions
- 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.)
- Granted
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004804 winding Methods 0.000 claims abstract description 295
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 claims description 41
- 230000004907 flux Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000002887 superconductor Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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)
- Coils Of Transformers For General Uses (AREA)
Abstract
The invention discloses a filtering type power transformer integrated system and an implementation method thereof. The filtering type power transformer integrated system comprises a transformer and a filtering compensating device, wherein the transformer is provided with a three-winding structure or a four-winding structure; the three-winding structural transformer comprises a high-voltage winding, a medium-voltage winding and a low-voltage shielded winding, wherein the low-voltage winding and the shielded winding share one winding; the low-voltage (shielding) winding is arranged between the high-voltage winding and the medium-voltage winding, and the low-voltage (shielding) winding is connected with the filtering compensating device; the four-winding structural transformer comprises a high-voltage winding, a medium-voltage winding, a low-voltage winding and a shielding winding; and the four windings, namely the low-voltage winding, the medium-voltage winding, the shielding winding and the high-voltage winding are arranged on an iron core of the transformer in sequence, and the shielding winding is connected with the filtering compensating device. The filtering type power transformer integrated system and the implementation method thereof provided by the invention have the advantages of reducing harmonic loss, and improving power factor.
Description
Technical field
The present invention relates to a kind of filtering type power transformer integrated system and its implementation, the industrial cousumer transformer station (or power distribution station) that can be applicable to that the transformer station of harmonic source load is arranged in the electric power system or produce harmonic wave.
Background technology
The extensive application of nonlinear-loads such as smelting, chemical industry, electric iron has caused problems such as harmonic pollution is big, power factor is low.The harmonic current that nonlinear-load produces flows into grid side, can cause serious pollution to electrical network.Because harmonic wave flows in electrical network, not only produce bigger loss, simultaneously first and second equipment such as transformer, relaying protection are brought very big potential safety hazard, have a strong impact on the safety and economy operation of electrical network, influence the reliable power supply of electrical network.For the bigger user of harmonic source load, traditional solution mainly is to install filter flows into electrical network with restriction harmonic wave additional at user side.Because the traditional filtering method effect is undesirable, the harmonic wave that causes injecting electrical network is still bigger, even exceeds the GB requirement.For the less user of harmonic source load; Because filter expense input is bigger; The user is not high to the awareness of harmonic wave in addition, and major part does not all install filter additional, and the harmonic current that injects for the transformer station's common bus stack that inserts a plurality of loads like this is very big; Inject electrical network through transformer, thereby influence grid supply quality.
Therefore, be necessary to design a kind of filtering type power transformer integrated system and its implementation.
Summary of the invention
Technical problem to be solved by this invention provides a kind of filtering type power transformer integrated system and its implementation, and this filtering type power transformer integrated system and its implementation can effectively reduce harmonic loss, improves power factor (PF).
The technical solution of invention is following:
A kind of filtering type power transformer integrated system is characterized in that, bag filtering type power transformer and filtering compensation system; Described transformer has three winding constructions or four winding constructions;
The number of turn of three windings that transformer comprised of three winding constructions is respectively N1, N2 and N3; And N1>N2>N3; Remember that these three windings are respectively high pressure winding, middle pressure winding and low pressure shielding winding, [low pressure winding and shielding winding be totally one winding, promptly is called low pressure shielding winding]; Low pressure shielding winding is arranged between high pressure winding and the middle pressure winding; Low pressure shielding winding and filtering compensation device join;
The number of turn of 4 windings that the transformer of four winding constructions comprises is respectively M1, M2, M3 and M4, and M1>M2>M3, M4 is less than or equal to M3,, remember that these 4 windings are respectively high pressure winding, middle pressure winding, low pressure winding and shielding winding; 4 the arrange positions of winding on the iron core of transformer are: be followed successively by low pressure winding, middle pressure winding, shielding winding, high pressure winding from inside to outside; Shielding winding and filtering compensation device join.
For the transformer of three winding constructions, first side winding is that the high pressure winding adopts star-star connection, and middle pressure winding adopts star-star connection, and the low pressure winding adopts delta connection;
For the transformer of four winding constructions, first side winding is that the high pressure winding adopts star-star connection, and secondary side winding presses winding to adopt star-star connection promptly, and shielding winding and low pressure winding all adopt delta connection.
Described filtering compensation device is that one group of harmonic wave absorbs branch road or absorbs branch road by many groups harmonic wave and is formed in parallel.
For the transformer of three winding constructions, the electric pressure of high pressure winding is 220kV or 110kV, and the electric pressure of middle pressure winding is 110kV or 35kV, and the electric pressure of low pressure shielding winding is 35kV or 10kV;
For the transformer of four winding constructions, the electric pressure of high pressure winding is 220kV or 110kV, and the electric pressure of middle pressure winding is 110kV or 35kV, and the low pressure winding is 35kV or 10kV with the electric pressure of shielding winding.
A kind of implementation method of filtering type power transformer integrated system; The transformer of three winding constructions or the transformer of four winding constructions are linked to each other with filtering compensation device with filtering harmonic and raising power factor (PF); The number of turn of three windings that transformer comprised of three winding constructions is respectively N1, N2 and N3; And N1>N2>N3, remember that these three windings are respectively high pressure winding, middle pressure winding and low pressure shielding winding; Low pressure shielding winding is arranged between high pressure winding and the middle pressure winding; Low pressure winding and filtering compensation device join;
The number of turn of 4 windings that the transformer of four winding constructions comprises is respectively M1, M2, M3 and M4, and M1>M2>M3, M4 is less than or equal to M3,, write down these 4 windings and be respectively high pressure winding, middle pressure winding, low pressure winding and shielding winding; 4 the arrange positions of winding on the iron core of transformer are: be followed successively by low pressure winding, middle pressure winding, shielding winding, high pressure winding from inside to outside; Shielding winding and filtering compensation device join.
For the transformer of three winding constructions, first side winding is that the high pressure winding adopts star-star connection, and secondary side winding presses winding to adopt star-star connection promptly, and the low pressure winding adopts delta connection;
For the transformer of four winding constructions, first side winding is that the high pressure winding adopts star-star connection, and middle pressure winding adopts star-star connection, and shielding winding and low pressure winding all adopt delta connection.
Described filtering compensation device is that one group of harmonic wave absorbs branch road or absorbs branch road by many groups harmonic wave and is formed in parallel.
For the transformer of three winding constructions, the electric pressure of high pressure winding is 220kV or 110kV, and the electric pressure of middle pressure winding is 110kV or 35kV, and the electric pressure of low pressure winding is 35kV or 10kV;
For the transformer of four winding constructions, the electric pressure of high pressure winding is 220kV or 110kV, and the electric pressure of middle pressure winding is 110kV or 35kV, and the low pressure winding is 35kV or 10kV with the electric pressure of shielding winding.
A kind of filtering type power transformer integrated system; Comprise high pressure winding, middle pressure winding and low pressure (shielding) winding and filtering compensation system; What be different from traditional winding is that low pressure (shielding) winding is arranged between high pressure winding and the middle pressure winding; Low pressure (shielding) winding is through special impedance design, and low pressure (shielding) winding and filtering compensation system join, and no-load voltage ratio is consistent with traditional transformer.Through to the complete modulation filter that is connect, realize effective shielding, filtering harmonic and improve power factor to the harmonic flux of injection transformer.
In the conventional method, the filtering compensation system is arranged on the transformer high-voltage side, harmonic flux free flow in transformer inner main core, air and wet goods scope.Simultaneously, secondary load winding harmonic wave alternating flux also can be responded to corresponding harmonic current at net side winding when wearing link network side winding.This explains the caused iron loss of harmonic flux in conventional method, and is existed at the caused copper loss of net side winding by harmonic current always, and this also is the problem that adopts traditional filtering method cann't be solved at present.
In patented technology of the present invention; The filtering compensation system is arranged on the secondary side of transformer, owing to increased the shielding winding, and its leakage reactance is very little; Approach zero; This winding inserts the complete modulation filter, has constituted zero impedance loop under certain subfrequency, has possessed the condition of " superconductor " closed-loop path.
When the secondary load winding is flowed through harmonic current, can produce corresponding harmonic flux.This alternation harmonic flux induces corresponding harmonic wave electromotive force in the shielding closed-loop path that winding and tuner constituted, because the existence of closed-loop path just produces corresponding harmonic current in this loop, produce corresponding harmonic wave electromotive force afterwards.
According to " superconduction " loop magnetic linkage conservation principle; How the harmonic wave magnetic linkage no matter outside harmonic field interlinkage should " superconductor " closed-loop path changes; The harmonic wave magnetic linkage that loop induced harmonics electric current is produced always resists this variation; This means under specific subfrequency, reached Harmonic Magnetic kinetic potential poised state between secondary load winding and secondary shield winding.
Because the Harmonic Magnetic kinetic potential is balance between load winding and shielding winding; Therefore, net side winding just can not responded to the harmonic current of specific subfrequency, that is to say; Harmonic current is shielded from the secondary load winding of transformer, has realized and the isolation of net side winding and AC network.The reactive power that is consumed can be provided by filtering compensation device simultaneously.
Show thus; Under specific subfrequency; Be approximately 0 as long as guarantee the specific subharmonic total impedance of the closed-loop path that shielding winding and filtering compensation device are formed; Just guarantee the condition of the superconductor closed-loop path under the specific subfrequency, then the harmonic flux of the load harmonic current of injection transformer generation all can be realized good shielding action, thereby gets filter effect preferably.
Beneficial effect:
Filtering type power transformer integrated system of the present invention and its implementation; The winding of the transformer that is adopted and the difference of traditional winding are that low pressure (shielding) winding is arranged between high pressure winding and the middle pressure winding; Low pressure (shielding) winding and filtering compensation device join, and no-load voltage ratio is consistent with traditional transformer.The complete modulation filter that passes through to be connect is realized the effective shielding to the harmonic flux of injection transformer, filtering harmonic and raising power factor.
This filtering type power transformer integrated system is when operation; The harmonic wave injection transformer; Short-circuit impedance is very little or be approximately 0, the filter complete modulation that is connect for shielding winding (when three winding constructions, low pressure winding and shielding winding be totally one winding); Utilize electromagnetic induction principle to realize effective shielding, thereby play effective filtering and inactive power compensation harmonic wave to harmonic flux.
This filtering type transformer integrated system can shield the harmonic flux that the load harmonic current produces, and isolates the harmonic current that load side is injected electrical network, reduces the harmonic loss of transformer greatly and by the caused noise and vibration of harmonic component, improves power factor.
This filtering type transformer integrated system is the harmonic wave of filtering injection electrical network effectively, can also improve power factor, and the operational efficiency of elevator system reduces electromagnetic noise, energy-conserving and environment-protective.Filtering type transformer integrated system adopts the multiple secondary winding pattern, is divided into high pressure winding, middle pressure winding, low pressure (shielding) winding.The harmonic filtration effect is than adopting the traditional passive filtering method to exceed more than 20%, and power factor compensation can reach more than 0.96.Effectively reduce the harmonic loss of electrical network, improved the safety operation level of electrical network.
Description of drawings
Fig. 1 is the structural representation (transformer with three winding constructions) of filtering type power transformer integrated system;
Fig. 2 is the structural representation (transformer with four winding constructions) of filtering type power transformer integrated system
Fig. 3 be three winding constructions (figure a) with the Transformer Winding layout plan of four winding constructions (figure b).
Fig. 4 is patented technology of the present invention and conventional method contrast filter effect figure.
Label declaration: 1-high pressure winding, press winding among the 2-, 3-low pressure winding, the 4-filtering compensation device, 5-shields winding, 6-low pressure shielding winding.
Embodiment
Below will combine accompanying drawing and specific embodiment that the present invention is explained further details:
Embodiment 1:
Referring to Fig. 1 and Fig. 3 (a), transformer adopting three winding constructions of filtering type power transformer integrated system specifically comprise high pressure winding (electric pressure is 220kV), middle pressure winding (electric pressure is 110kV) and low pressure shielding winding (electric pressure is 10kV).Low pressure shielding winding is arranged between high pressure winding and the middle pressure winding (sees Fig. 3 (a)), and low pressure winding and filtering compensation device join.
Filter is pressed complete modulation design, and promptly for certain subharmonic (such as 5 subharmonic), these filter branch 5 subharmonic reactance equate with 5 subharmonic capacitive reactances, i.e. ω
5L=1/ ω
5C, the total impedance of branch road is zero, realizes complete modulation.The filter branch design principle of other harmonic number is consistent.
In Fig. 1, filtering type power transformer adopts the multiple secondary winding pattern, and its first side winding adopts star-star connection; Input termination AC power 1 (being electrical network or generating end); Electric pressure is 220kV, presses the power supply of winding on-load in its secondary side, and electric pressure is 110kV; Its secondary side low pressure (shielding) winding adopts delta connection, and electric pressure is 10kV.
Low pressure shielding winding can be with other load power supply simultaneously.Output termination filter (containing compensate function).Can be made up of the filter with different structure type, can be one or more filter branch, realizes the filtering to the each harmonic of load generation.
Fig. 4 is patented technology of the present invention and conventional method contrast filter effect figure.Fig. 4 a is for adopting voltage, the current waveform figure of conventional method, and waveform seriously distorts, and Fig. 4 b is for adopting voltage, the current waveform figure of patented technology of the present invention, and waveform improves obviously, becomes qualified sine wave.
Adopt patent art; Harmonic flux is because of effectively shielding in the transformer; Harmonic loss reduces more than 70% than traditional transformer; Transformer noise reduces 5-15db, and power factor brings up to 0.96, and the voltage distortion rate of transformer 220kV, 110kV10kV side meets or exceeds the requirement of national standard 2%, 3%, 4%.
Embodiment 2:
Referring to Fig. 2 and Fig. 3 (b); Transformer adopting four winding constructions of filtering type power transformer integrated system specifically comprise high pressure winding (electric pressure is 220kV), middle pressure winding (electric pressure is 110kV) and low pressure winding and shielding winding (electric pressure is 10kV).The shielding winding is arranged between high pressure winding and the middle pressure winding (sees Fig. 3 (b)), and shielding winding and filtering compensation device join.
Filtering compensation device (filter) is reactor L and capacitor C cascaded structure, equates with capacitive reactance for the induction reactance of certain particular harmonic, i.e. ω
nL=1/ ω
nC, wherein ω is the first-harmonic angular frequency, n is a harmonic number.Filter is pressed complete modulation design, for certain subharmonic, is example with 5 subharmonic promptly, and these filter branch 5 subharmonic reactance equate with 5 subharmonic capacitive reactances, i.e. ω
5L=1/ ω
5C, the total impedance of branch road is zero, realizes complete modulation.The filter branch design principle of other harmonic number is consistent.
The filter effect contrast is suitable with the effect of embodiment 1.
Adopt patent art; Harmonic flux is because of effectively shielding in the transformer; Harmonic loss reduces more than 70% than traditional transformer; Transformer noise reduces 5-15db, and power factor brings up to 0.96, and the voltage distortion rate of transformer 220kV, 110kV10kV side meets or exceeds the requirement of national standard 2%, 3%, 4%.
The impedance of shielding short circuit in winding is very little or be approximately 0.Filter is pressed the complete modulation design.Special impedance design through to the shielding winding realizes the effective shielding to the harmonic flux of injection transformer with the filtering compensation device that is connect, filtering harmonic and raising power factor.
In addition; When adopting three winding constructions; High-pressure side (can be 220kV or 110kV) is a mains side, the load power supply of medium voltage side (corresponding to 110kV or 35kV) tape splicing, low pressure (shielding) winding (corresponding to 35kV or 10kV) but connect the complete modulation filter simultaneously and other load of tape splicing is supplied power.
When adopting four winding constructions, it is characterized in that, increase a shielding winding, the shielding winding be arranged on the high pressure winding and in, between the low pressure winding, next-door neighbour's high pressure winding.High-pressure side (can be 220kV or 110kV) is a mains side; The power supply of medium voltage side (corresponding to 110kV or 35kV) tape splicing load; The power supply of low-pressure side (corresponding to 35kV or 10kV) tape splicing low-voltage load, the shielding winding connects the complete modulation filter separately and realizes filtering and compensation.
Filter is pressed the complete modulation design, has no-power compensation function simultaneously.
Claims (8)
1. a filtering type power transformer integrated system is characterized in that, bag filtering type power transformer and filtering compensation system; Described transformer has three winding constructions or four winding constructions;
The number of turn of three windings that transformer comprised of three winding constructions is respectively N1, N2 and N3, and N1>N2>N3, remember that these three windings are respectively high pressure winding, middle pressure winding and low pressure shielding winding; Low pressure shielding winding is arranged between high pressure winding and the middle pressure winding; Low pressure shielding winding and filtering compensation device join;
The number of turn of 4 windings that the transformer of four winding constructions comprises is respectively M1, M2, M3 and M4, and M1>M2>M3, M4 is less than or equal to M3,, remember that these 4 windings are respectively high pressure winding, middle pressure winding, low pressure winding and shielding winding; 4 the arrange positions of winding on the iron core of transformer are: be followed successively by low pressure winding, middle pressure winding, shielding winding, high pressure winding from inside to outside; Shielding winding and filtering compensation device join.
2. filtering type power transformer integrated system according to claim 1 is characterized in that, for the transformer of three winding constructions, first side winding is that the high pressure winding adopts star-star connection, and middle pressure winding adopts star-star connection, and the low pressure winding adopts delta connection;
For the transformer of four winding constructions, first side winding is that the high pressure winding adopts star-star connection, and secondary side winding presses winding to adopt star-star connection promptly, and shielding winding and low pressure winding all adopt delta connection.
3. filtering type power transformer integrated system according to claim 1 is characterized in that, described filtering compensation device is that one group of harmonic wave absorbs branch road or absorbs branch road by many groups harmonic wave and is formed in parallel.
4. according to each described filtering type power transformer integrated system of claim 1-3; It is characterized in that; Transformer for three winding constructions; The electric pressure of high pressure winding is 220kV or 110kV, and the electric pressure of middle pressure winding is 110kV or 35kV, and the electric pressure of low pressure shielding winding is 35kV or 10kV;
For the transformer of four winding constructions, the electric pressure of high pressure winding is 220kV or 110kV, and the electric pressure of middle pressure winding is 110kV or 35kV, and the low pressure winding is 35kV or 10kV with the electric pressure of shielding winding.
5. the implementation method of a filtering type power transformer integrated system; It is characterized in that; The transformer of three winding constructions or the transformer of four winding constructions are linked to each other with filtering compensation device with filtering harmonic and raising power factor (PF); The number of turn of three windings that transformer comprised of three winding constructions is respectively N1, N2 and N3, and N1>N2>N3, remember that these three windings are respectively high pressure winding, middle pressure winding and low pressure shielding winding; Low pressure shielding winding is arranged between high pressure winding and the middle pressure winding; Low pressure winding and filtering compensation device join;
The number of turn of 4 windings that the transformer of four winding constructions comprises is respectively M1, M2, M3 and M4, and M1>M2>M3, M4 is less than or equal to M3,, write down these 4 windings and be respectively high pressure winding, middle pressure winding, low pressure winding and shielding winding; 4 the arrange positions of winding on the iron core of transformer are: be followed successively by low pressure winding, middle pressure winding, shielding winding, high pressure winding from inside to outside; Shielding winding and filtering compensation device join.
6. the implementation method of filtering type power transformer integrated system according to claim 5; It is characterized in that; Transformer for three winding constructions; First side winding is that the high pressure winding adopts star-star connection, and secondary side winding presses winding to adopt star-star connection promptly, and the low pressure winding adopts delta connection;
For the transformer of four winding constructions, first side winding is that the high pressure winding adopts star-star connection, and middle pressure winding adopts star-star connection, and shielding winding and low pressure winding all adopt delta connection.
7. the implementation method of filtering type power transformer integrated system according to claim 5 is characterized in that, described filtering compensation device is that one group of harmonic wave absorbs branch road or absorbs branch road by many groups harmonic wave and is formed in parallel.
8. according to the implementation method of each described filtering type power transformer integrated system of claim 5-7; It is characterized in that; Transformer for three winding constructions; The electric pressure of high pressure winding is 220kV or 110kV, and the electric pressure of middle pressure winding is 110kV or 35kV, and the electric pressure of low pressure winding is 35kV or 10kV;
For the transformer of four winding constructions, the electric pressure of high pressure winding is 220kV or 110kV, and the electric pressure of middle pressure winding is 110kV or 35kV, and the low pressure winding is 35kV or 10kV with the electric pressure of shielding winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210344060.6A CN102820129B (en) | 2012-09-17 | 2012-09-17 | Filtering type power transformer integrated system and implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210344060.6A CN102820129B (en) | 2012-09-17 | 2012-09-17 | Filtering type power transformer integrated system and implementation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102820129A true CN102820129A (en) | 2012-12-12 |
| CN102820129B CN102820129B (en) | 2015-06-03 |
Family
ID=47304192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210344060.6A Active CN102820129B (en) | 2012-09-17 | 2012-09-17 | Filtering type power transformer integrated system and implementation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102820129B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310958A (en) * | 2013-06-29 | 2013-09-18 | 广东海鸿变压器有限公司 | Stereoscopic rolled iron core type photovoltaic transformer with stabilizing windings |
| CN103515960A (en) * | 2013-09-30 | 2014-01-15 | 国网湖南省电力公司 | Magnetic integrated type hybrid power filter and reactive compensation system |
| CN108614949A (en) * | 2018-05-17 | 2018-10-02 | 湖南大学 | A kind of transformer integrated regulation and control filtering system harmonic current distribution calculation method |
| CN108878120A (en) * | 2017-05-08 | 2018-11-23 | 特变电工衡阳变压器有限公司 | A kind of energy-saving filter type power transformer |
| CN110556837A (en) * | 2019-10-08 | 2019-12-10 | 国网湖南省电力有限公司 | Power grid harmonic wave shielding method based on four-winding induction filtering power transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101557116A (en) * | 2009-02-26 | 2009-10-14 | 湖南大学 | Environment-friendly and energy-saving DC power station |
| CN201780850U (en) * | 2010-07-02 | 2011-03-30 | 湖南华大电工高科技有限公司 | Energy-saving filter low-noise transformer |
| CN202816588U (en) * | 2012-09-17 | 2013-03-20 | 湖南华大电工高科技有限公司 | Filtering type power-transformer integration system |
-
2012
- 2012-09-17 CN CN201210344060.6A patent/CN102820129B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101557116A (en) * | 2009-02-26 | 2009-10-14 | 湖南大学 | Environment-friendly and energy-saving DC power station |
| CN201780850U (en) * | 2010-07-02 | 2011-03-30 | 湖南华大电工高科技有限公司 | Energy-saving filter low-noise transformer |
| CN202816588U (en) * | 2012-09-17 | 2013-03-20 | 湖南华大电工高科技有限公司 | Filtering type power-transformer integration system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103310958A (en) * | 2013-06-29 | 2013-09-18 | 广东海鸿变压器有限公司 | Stereoscopic rolled iron core type photovoltaic transformer with stabilizing windings |
| CN103515960A (en) * | 2013-09-30 | 2014-01-15 | 国网湖南省电力公司 | Magnetic integrated type hybrid power filter and reactive compensation system |
| CN103515960B (en) * | 2013-09-30 | 2016-01-20 | 国网湖南省电力公司 | The hybrid power filtering of magnetic integrated form and reactive compensation system |
| CN108878120A (en) * | 2017-05-08 | 2018-11-23 | 特变电工衡阳变压器有限公司 | A kind of energy-saving filter type power transformer |
| CN108614949A (en) * | 2018-05-17 | 2018-10-02 | 湖南大学 | A kind of transformer integrated regulation and control filtering system harmonic current distribution calculation method |
| CN108614949B (en) * | 2018-05-17 | 2021-09-10 | 湖南大学 | Harmonic current distribution calculation method for transformer integrated regulation and control filtering system |
| CN110556837A (en) * | 2019-10-08 | 2019-12-10 | 国网湖南省电力有限公司 | Power grid harmonic wave shielding method based on four-winding induction filtering power transformer |
| CN110556837B (en) * | 2019-10-08 | 2023-01-13 | 国网湖南省电力有限公司 | Power grid harmonic wave shielding method based on four-winding induction filtering power transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102820129B (en) | 2015-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201369679Y (en) | Electronic transformer for electric power line | |
| CN102820129B (en) | Filtering type power transformer integrated system and implementation method thereof | |
| CN105470963B (en) | A kind of Active Power Filter-APF and its control method | |
| CN201138785Y (en) | Wave filter circuit for switch power supply | |
| CN102231318A (en) | Method and transformer for reducing common-mode interference in sandwich winding transformer | |
| CN107947219A (en) | Harmonic analysis method caused by a kind of extra-high voltage DC transmission system DC magnetic bias | |
| CN103094911A (en) | Method for optimizing direct current weak receiving terminal power grid static var compensator (SVC) dynamic reactive power compensation configuration measures | |
| CN201332271Y (en) | Electrified railway power compensator | |
| CN102945736A (en) | Traction transformer for traction power supply numerical control converter device | |
| CN202816588U (en) | Filtering type power-transformer integration system | |
| CN104600702B (en) | Induction control filtering system for integrated electric reactor and control method of induction control filtering system | |
| CN104617583A (en) | Mixed railway power quality control system based on multifunctional balanced transformer | |
| CN101291065B (en) | Linear harmonic suppressing apparatus in low voltage distributing network | |
| CN202231621U (en) | Shunt-wound structure of current transformer | |
| CN106856373A (en) | A kind of harmonic wave generation device | |
| CN201229838Y (en) | Dry type rectifier transformer | |
| CN201001042Y (en) | Electric energy quality comprehensive controller for low-voltage distribution system | |
| CN201282339Y (en) | Series hybrid active electric filter device | |
| CN203491694U (en) | Wind field booster system main transformer | |
| CN109600051A (en) | The through cophase supply device of non-full capacity and its control method | |
| CN104393601A (en) | Inductance integrated hybrid railway power flow controller | |
| CN203660534U (en) | Passive power filter | |
| CN201523236U (en) | Power quality comprehensive controller for power distribution system | |
| CN203747818U (en) | Medium-voltage power line carrier communication connection structure based on mixed lines | |
| Peng et al. | Design requirement and DC bias analysis on HVDC converter 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 | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Fusheng Inventor after: Ma Fang Inventor after: Zhou Yongyi Inventor before: Huang Wentao Inventor before: Liu Fusheng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HUANG WENTAO LIU FUSHENG TO: LIU FUSHENG MA FANG ZHOU YONGYI |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170828 Address after: 410013 Hunan province Changsha high-tech development zone Lusong Lu Valley Road No. 456 Patentee after: HUNAN HUADA UNISPLENDOUR TECHNIC CORPORATION LIMITED Address before: 410007 Hunan province Changsha City Lugu high tech Zone of Hunan University Science Park Patentee before: Hunan Huada Electrician Hi-Tech Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210924 Address after: 410000 908, building 8, sunshine West Group, California, No. 38, Guyuan Road, Changsha high tech Development Zone, Changsha City, Hunan Province Patentee after: HUNAN HUADA ELECTRICIAN HI-TECH Co.,Ltd. Address before: 410013 No. 456, lushong Road, Lugu, Changsha high tech Development Zone, Hunan Province Patentee before: HUNAN HUADA UNISPLENDOUR TECHNIC Corp.,Ltd. |
|
| TR01 | Transfer of patent right |