CN101354956B - Large-capacity double-body phase-shifting transformer - Google Patents
Large-capacity double-body phase-shifting transformer Download PDFInfo
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- CN101354956B CN101354956B CN2008100551600A CN200810055160A CN101354956B CN 101354956 B CN101354956 B CN 101354956B CN 2008100551600 A CN2008100551600 A CN 2008100551600A CN 200810055160 A CN200810055160 A CN 200810055160A CN 101354956 B CN101354956 B CN 101354956B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E40/10—Flexible AC transmission systems [FACTS]
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Abstract
The invention relates to a large-capacity dual-body phase-shift transformer which comprises a series transformer oil tank, an exciting transformer oil tank, a series transformer, an exciting transformer, and a resistance type on-load tap-changer with a polarity selector. Each phase of the series transformer consists of a high voltage coil and a low voltage coil; each phase of the exciting transformer consists of a high voltage coil and a phase-shift coil; and a tapping cap of the phase-shift coil of each phase of the exciting transformer is in contact with a static contact of the resistance type on-load tap-changer of the phase, and two ends of the phase-shift coil of the phase are connected with the positive and negative ends of the polarity selector of the phase. A mobile contact of the polarity selector is connected with one end of the low voltage coil of the corresponding phase of the series transformer. The transformer has the advantages that: the transformer solves the problem of over current caused by transmission lines connected in parallel, thereby bringing about stability and high efficiency for the run of an electric system.
Description
Technical field
The present invention relates to a kind of large-capacity double-body phase-shifting transformator, be applicable to electric power system transmission line in parallel, its capacity is greater than 250MVA, phase shifting angle ± 60 °.Belong to the power transformer technical field.
Background technology
Large-scale electric power system requires to have very high reliability and high efficiency, usually all be to be formed in parallel by a plurality of electric power systems, the reliability of each electric power system and sharing of load are that the factor of main influence has line impedance, power factor by the decision of the different qualities parameter of this system.The application of phase shifting transformer in transmission line in parallel greatly improved the reliability of electric power system.The main application of phase shifting transformer in electric power system can conclude following some:
The transmission line of a, protection electric power system prevents that it from transshipping;
The stability of b, improvement electric power system;
C, the different electric power networks of flow of power control to(for) the overhead transmission line in parallel and the cable line of long distance;
D, can make original transmission system increase-volume.
By retrieval, up to the present, do not find the large-capacity double-body phase-shifting transformator identical as yet with structure of the present invention.
Summary of the invention
Technical problem to be solved by this invention provides and a kind ofly can solve be incorporated into the power networks overcurrent problem in the transmission line of electric power system, guarantees that electric power system is incorporated into the power networks efficiently, the large-capacity double-body phase-shifting transformator of stable operation.
The present invention adopts following technical scheme:
The present invention includes series transformer fuel tank, excitation transformer fuel tank, series transformer, excitation transformer, had polarity selector K
ZF1Resistance-type on load tap changer K;
The series transformer fuel tank is connected with the excitation transformer fuel tank by pipeline;
Series transformer is every by high-tension coil L
CgWith low-voltage coil L
CdForm the low-voltage coil L of series transformer
CdBe delta connection, each phase high-tension coil L of series transformer
CgThe end S1, S2, the S3 that connect power supply are arranged, each phase high-tension coil L of series transformer respectively
CgThe end L1, L2, the L3 that connect load are accordingly arranged respectively;
Excitation transformer is every by high-tension coil L
LgWith phase shift coil L
LtForm the high-tension coil L of excitation transformer
LgBe Y-connection, the every phase high-tension coil of excitation transformer L
LgAn end relative with Y-connection meets the high-tension coil L of the corresponding phase of series transformer respectively
CgCentre cap; The every phase shift phase coil of excitation transformer L
LtThe contact of deciding of tap leading-out end and this resistance-type on load tap changer mutually connect this phase shift phase coil L
LtThis phase polarity selector of two terminations K
ZF1Positive and negative two ends, described polarity selector K
ZF1Moving contact and the corresponding low-voltage coil L mutually of series transformer
CdAn end be connected.
Good effect of the present invention is that the phase angle by this phase shifting transformer is regulated the electric current that can control each parallel branch of electric power system in parallel, thereby solves because the overcurrent problem that transmission line in parallel causes, makes the stable and efficient of electric power system.
Description of drawings
Fig. 1 is structural representation of the present invention (winding diagram).
Fig. 2 is a single-phase winding diagram of the present invention.
Fig. 3 is a vectogram.
Embodiment
By the embodiment shown in Fig. 1-3 as can be known, it includes series transformer fuel tank, excitation transformer fuel tank, series transformer, excitation transformer, has polarity selector K
ZF1Resistance-type on load tap changer K;
The series transformer fuel tank is connected with the excitation transformer fuel tank by pipeline;
Series transformer is every by high-tension coil L
CgWith low-voltage coil L
CdForm the low-voltage coil L of series transformer
CdBe delta connection, each phase high-tension coil L of series transformer
CgThe end S1, S2, the S3 that connect power supply are arranged, each phase high-tension coil L of series transformer respectively
CgThe end L1, L2, the L3 that connect load are accordingly arranged respectively;
Excitation transformer is every by high-tension coil L
LgWith phase shift coil L
LtForm the high-tension coil L of excitation transformer
LgBe Y-connection, the every phase high-tension coil of excitation transformer L
LgAn end relative with Y-connection meets the high-tension coil L of the corresponding phase of series transformer respectively
CgCentre cap; The every phase shift phase coil of excitation transformer L
LtThe contact of deciding of tap leading-out end and this resistance-type on load tap changer mutually connect this phase shift phase coil L
LtThis phase polarity selector of two terminations K
ZF1Positive and negative two ends, described polarity selector K
ZF1Moving contact and the corresponding low-voltage coil L mutually of series transformer
CdAn end be connected.
In Fig. 1, SOLO, N are respectively different earth terminals.
The operation principle of present embodiment is as follows:
Resistance-type on load tap changer K is used for adjusting the output voltage (add deduct, the supporting operating mechanism of utilization and resistance-type on load tap changer K is regulated automatically) of excitation transformer.This voltage provides excitation for the iron core of series transformer, the every phase high-tension coil of series transformer L
CgFirst head be connected on the incoming line, its end head is connected on the outlet line, and load current flows through this coil, the wiring of series transformer and excitation transformer as shown in Figure 1.Under the situation of this wiring, the low-voltage coil L that connects with triangle on the series transformer
CdOn voltage variety leading or lag behind the corresponding high-tension coil L of excitation transformer
LgOn 90 ° of voltages.This voltage is sent to corresponding high-tension coil L on the series transformer
CgOn, and produce voltage
With
(see figure 3), these two voltages make the mains side voltage of this phase shifting transformer
And load side voltage
Between produce a phase angle variation, and the output voltage size is identical with the input voltage size, the basic function (variation of phase angle) of Here it is this phase shifting transformer.The voltage of large-capacity double-body phase-shifting transformator mains side of the present invention and load-side equates, but the phase angle difference of these both sides is continuously adjustable in certain limit, phase angle by phase shifting transformer is regulated the electric current that can control each parallel branch of electric power system in parallel, thereby solve because the overcurrent problem that transmission circuit in parallel causes, make the stable and efficient of electric power system.
Claims (1)
1. large-capacity double-body phase-shifting transformator is characterized in that it includes series transformer fuel tank, excitation transformer fuel tank, series transformer, excitation transformer, has polarity selector (K
ZF1) resistance-type on load tap changer (K);
The series transformer fuel tank is connected with the excitation transformer fuel tank by pipeline;
Series transformer is every by high-tension coil (L
Cg) and low-voltage coil (L
Cd) form the low-voltage coil (L of series transformer
Cd) be delta connection, each phase high-tension coil (L of series transformer
Cg) end (S1, S2, S3) that connects power supply, each phase high-tension coil (L of series transformer arranged respectively
Cg) end (L1, L2, L3) that connects load accordingly arranged respectively;
Excitation transformer is every by high-tension coil (L
Lg) and phase shift coil (L
Lt) form the high-tension coil (L of excitation transformer
Lg) be Y-connection, the every phase high-tension coil of excitation transformer (L
Lg) end relative with Y-connection meet the high-tension coil (L of the corresponding phase of series transformer respectively
Cg) centre cap; The every phase shift phase coil of excitation transformer (L
Lt) the contact of deciding of tap leading-out end and this resistance-type on load tap changer mutually connect this phase shift phase coil (L
Lt) this phase polarity selector of two terminations (K
ZF1) positive and negative two ends, described polarity selector K
ZF1Moving contact and the corresponding low-voltage coil (L mutually of series transformer
Cd) an end be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100551600A CN101354956B (en) | 2008-05-28 | 2008-05-28 | Large-capacity double-body phase-shifting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100551600A CN101354956B (en) | 2008-05-28 | 2008-05-28 | Large-capacity double-body phase-shifting transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101354956A CN101354956A (en) | 2009-01-28 |
| CN101354956B true CN101354956B (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100551600A Active CN101354956B (en) | 2008-05-28 | 2008-05-28 | Large-capacity double-body phase-shifting transformer |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819854B (en) * | 2010-04-22 | 2012-05-23 | 江西变压器科技股份有限公司 | Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer |
| CN102682979B (en) * | 2012-05-13 | 2014-12-03 | 广西柳州特种变压器有限责任公司 | Novel phase shifting rectifier transformer |
| CN103187727B (en) * | 2013-02-25 | 2016-04-20 | 中国电力科学研究院 | A kind of controllable phase shifter for ultra-high/extra-high voltage circuit and method of operation thereof |
| CN103178527B (en) * | 2013-03-27 | 2015-07-01 | 刘志勇 | Voltage deviation adjustor |
| CN103680863A (en) * | 2013-12-25 | 2014-03-26 | 保定天威保变电气股份有限公司 | Quadrature booster wiring method |
| CN104465053B (en) * | 2014-12-09 | 2016-08-03 | 山东电力设备有限公司 | A kind of high-capacity three-phase combination type phase-shifting transformer |
| CN113077978A (en) * | 2021-04-13 | 2021-07-06 | 保定天威保变电气股份有限公司 | Novel voltage-regulating phase-shifting transformer with high-capacity double-device height impedance and additional reactor |
| CN113257549A (en) * | 2021-04-13 | 2021-08-13 | 保定天威保变电气股份有限公司 | High-capacity double-device height impedance phase-shifting transformer with additional reactor |
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- 2008-05-28 CN CN2008100551600A patent/CN101354956B/en active Active
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| CN101354956A (en) | 2009-01-28 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Baoding Tianwei Group Co., Ltd. Assignor: Baoding Tianwei Group Co., Ltd. Contract record no.: 2011130000099 Denomination of invention: Large-capacity double-body phase-shifting transformator Granted publication date: 20101117 License type: Exclusive License Open date: 20090128 Record date: 20110715 |
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| ASS | Succession or assignment of patent right |
Owner name: BAODING TIANWEI BAOBIAN ELECTRIC CO., LTD. Free format text: FORMER OWNER: BAODING TIANWEI GROUP CO., LTD. Effective date: 20131211 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131211 Address after: 071056 West Road, Hebei, Baoding, No. 2222, No. Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: 071056 Jin Di garden complex building, 128 chemical fiber road north, Baoding, Hebei Patentee before: Baoding Tianwei Group Co., Ltd. |