CN101354957B - Large-capacity double-body pressure-regulating phase-shifting transformer - Google Patents
Large-capacity double-body pressure-regulating phase-shifting transformer Download PDFInfo
- Publication number
- CN101354957B CN101354957B CN2008100551649A CN200810055164A CN101354957B CN 101354957 B CN101354957 B CN 101354957B CN 2008100551649 A CN2008100551649 A CN 2008100551649A CN 200810055164 A CN200810055164 A CN 200810055164A CN 101354957 B CN101354957 B CN 101354957B
- Authority
- CN
- China
- Prior art keywords
- phase
- coil
- transformer
- voltage
- polarity selector
- 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.)
- Active
Links
Images
Landscapes
- Control Of Electrical Variables (AREA)
Abstract
The invention relates to a large-capacity dual-body voltage regulating phase-shift transformer which comprises a series transformer oil tank, an exciting transformer oil tank, a series transformer, an exciting transformer, a first resistance type on-load tap-changer with a first polarity selector, and a second resistance type on-load tap-changer with a second polarity selector. Each phase of the series transformer consists of a high voltage coil and a low voltage coil; and each phase of the exciting transformer consists of a high voltage coil, a phase-shift coil, and a voltage regulating coil. The transformer has the advantages that: the transformer controls the current passing through a line through the change of inphase voltage and controls a parallel electric system and the actual current of each parallel branch through the phase angle regulation of the phase-shift coil, thereby solving the problem of over current caused by transmission lines connected in parallel, and consequently bringing about more stability and higher efficiency for the run of the electric system.
Description
Technical field
The present invention relates to a kind of large-capacity double-body pressure-regulating phase-shifting transformator, be applicable to the electric power system transmission line that is incorporated into the power networks, its capacity belongs to the power transformer field greater than 290MVA.
Background technology
For the operation that makes electric power system is stable more efficiently, in some applications, except require transformer have phase angle in certain scope continuously adjustable, need in the adjustment of carrying out synchronizing voltage toward contact, the present invention develops under this background.By retrieval, up to the present do not find the large-capacity double-body pressure-regulating 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 a kind of electric power system stable more and large-capacity double-body pressure-regulating phase-shifting transformator efficiently of the operation of transmission that is incorporated into the power networks that makes.
The technical solution adopted for the present invention to solve the technical problems:
The present invention includes series transformer fuel tank, excitation transformer fuel tank, series transformer, excitation transformer, had the first polarity selector K
ZF1The first resistance-type on load tap changer K1, have the second polarity selector K
ZF2The second resistance-type on load tap changer K2;
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 every phase low-voltage coil of series transformer L
CdHead end a meet the end A1 of the corresponding second resistance-type on load tap changer K2, this phase low-voltage coil L
CdTerminal b meet the corresponding first polarity selector K
ZF1Moving contact; 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
Lg, phase shift coil L
Lt1, voltage regulation coil L
Lt2Form the high-tension coil L of excitation transformer
LgBe Y-connection, the every phase high-tension coil of excitation transformer L
LgThe end with respect to Y-connection meet 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
Lt1The first and last end meet the first polarity selector K of this phase respectively
ZF1Positive and negative two ends, the first polarity selector K of this phase
ZF1Moving contact meet the second polarity selector K of adjacent phase
ZF2Moving contact, the phase shift coil L of this phase
Lt1The contact of deciding of tap leading-out end and this first resistance-type on load tap changer mutually connect;
The every phase voltage regulation coil of excitation transformer L
Lt2The first and last end meet the second polarity selector K of this phase respectively
ZF2Positive and negative two ends, the voltage regulation coil L of this phase
Lt2The contact of deciding of tap leading-out end and this second resistance-type on load tap changer mutually connect.
The invention has the beneficial effects as follows owing to be continuously adjustable in certain limit at its mains side of series transformer and the phase angle difference of load-side, simultaneously, synchronizing voltage also is continuously adjustable within the specific limits, it controls electric current by circuit by the variation of in-phase voltage size, regulate the actual current of controlling each parallel branch of electric power system in parallel by the phase angle of phase shift coil, thereby solve because the overcurrent problem that transmission circuit in parallel causes makes that the operation of electric power system is stable more and efficient.
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 the first polarity selector K
ZF1The first resistance-type on load tap changer K1, have the second polarity selector K
ZF2The second resistance-type on load tap changer K2;
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 every phase low-voltage coil of series transformer L
CdHead end a meet the end A1 of the corresponding second resistance-type on load tap changer K2, this phase low-voltage coil L
CdTerminal b meet the corresponding first polarity selector K
ZF1Moving contact; 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
Lg, phase shift coil L
Lt1, voltage regulation coil L
Lt2Form the high-tension coil L of excitation transformer
LgBe Y-connection, the every phase high-tension coil of excitation transformer L
LgThe end with respect to Y-connection meet 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
Lt1The first and last end meet the first polarity selector K of this phase respectively
ZF1Positive and negative two ends, the first polarity selector K of this phase
ZF1Moving contact meet the second polarity selector K of adjacent phase (phase difference 120 degree)
ZF2Moving contact, the phase shift coil L of this phase
Lt1The contact of deciding of tap leading-out end and this first resistance-type on load tap changer mutually connect;
The every phase voltage regulation coil of excitation transformer L
Lt2The first and last end meet the second polarity selector K of this phase respectively
ZF2Positive and negative two ends, the voltage regulation coil L of this phase
Lt2The contact of deciding of tap leading-out end and this second resistance-type on load tap changer mutually connect.
The operation principle of present embodiment is as follows:
1, phase-shift theory:
Phase shift is by phase shift coil L
Lt1And have the first polarity selector K
ZF1The first resistance-type on load tap changer K1 finish.The first resistance-type on load tap changer K1 is used for adjusting the output voltage (add deduct, the supporting operating mechanism of the utilization and the first resistance-type on load tap changer K1 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.
2, voltage-regulation principle:
Pressure regulation is by voltage regulation coil L
Lt2And have the second polarity selector K
ZF2The second resistance-type on load tap changer K2 finish.
By voltage regulation coil L
Lt2The voltage that produces and the voltage of series transformer are at an angle of 90.This voltage is sent to corresponding high-tension coil L on the series transformer
Cg, make the output voltage size of series transformer vary in size, thereby realize the voltage regulation function (see figure 3) with input voltage.
Claims (1)
1. large-capacity double-body pressure-regulating phase-shifting transformator is characterized in that it includes series transformer fuel tank, excitation transformer fuel tank, series transformer, excitation transformer, has the first polarity selector (K
ZF1) the first resistance-type on load tap changer (K1), have the second polarity selector (K
ZF2) the second resistance-type on load tap changer (K2);
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 every phase low-voltage coil of series transformer (L
Cd) head end (a) connect the end (A1) of the corresponding second resistance-type on load tap changer (K2), this phase low-voltage coil (L
Cd) end (b) meet the corresponding first polarity selector (K
ZF1) moving contact; 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), phase shift coil (L
Lt1), voltage regulation coil (L
Lt2) form the high-tension coil (L of excitation transformer
Lg) be Y-connection, the every phase high-tension coil of excitation transformer (L
Lg) the end with respect to 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
Lt1) the first and last end meet the first polarity selector (K of this phase respectively
ZF1) positive and negative two ends, the first polarity selector (K of this phase
ZF1) moving contact meet the second polarity selector (K of adjacent phase
ZF2) moving contact, the phase shift coil (L of this phase
Lt1) the contact of deciding of tap leading-out end and this first resistance-type on load tap changer mutually connect;
The every phase voltage regulation coil of excitation transformer (L
Lt2) the first and last end meet the second polarity selector (K of this phase respectively
ZF2) positive and negative two ends, the voltage regulation coil (L of this phase
Lt2) the contact of deciding of tap leading-out end and this second resistance-type on load tap changer mutually connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100551649A CN101354957B (en) | 2008-05-28 | 2008-05-28 | Large-capacity double-body pressure-regulating phase-shifting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100551649A CN101354957B (en) | 2008-05-28 | 2008-05-28 | Large-capacity double-body pressure-regulating phase-shifting transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101354957A CN101354957A (en) | 2009-01-28 |
| CN101354957B true CN101354957B (en) | 2011-03-09 |
Family
ID=40307716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100551649A Active CN101354957B (en) | 2008-05-28 | 2008-05-28 | Large-capacity double-body pressure-regulating phase-shifting transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101354957B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101697310B (en) * | 2009-11-03 | 2011-06-15 | 保定天威集团有限公司 | Winding connection structure for double-active-part on-load-tap-changing auto-transformer |
| 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 |
| CN113096942A (en) * | 2021-05-14 | 2021-07-09 | 华北电力大学 | Thyristor control-based voltage regulation and phase-shift flexible regulation phase-shift transformer |
| CN114884410B (en) * | 2022-05-18 | 2023-06-30 | 云南电网有限责任公司电力科学研究院 | Ring closing and regulating control method based on polarity and gear of phase-shifting transformer |
| CN114999782B (en) * | 2022-05-31 | 2023-12-22 | 江苏宏源电气有限责任公司 | Phase-shifting transformer for loop closing transfer power supply |
-
2008
- 2008-05-28 CN CN2008100551649A patent/CN101354957B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101354957A (en) | 2009-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101354957B (en) | Large-capacity double-body pressure-regulating phase-shifting transformer | |
| CN101354956B (en) | Large-capacity double-body phase-shifting transformer | |
| CN104465053B (en) | A kind of high-capacity three-phase combination type phase-shifting transformer | |
| CN107093907B (en) | Compensation method for regulating reactive capacity of autotransformer | |
| CN104769688B (en) | single-phase electric furnace transformer | |
| CN113077978A (en) | Novel voltage-regulating phase-shifting transformer with high-capacity double-device height impedance and additional reactor | |
| CN101093939A (en) | Major loop in high voltage static, dynamic reactive power compensation equipment | |
| CN101777866B (en) | High-voltage power-saving voltage regulator | |
| CN204215878U (en) | A kind of high-capacity three-phase composite type phase shifting transformer | |
| CN103680881B (en) | A kind of adjustable transformer and rank difference pressure regulation method thereof | |
| CN103680876B (en) | The power transformer that a kind of double frequency is general | |
| RU2679595C1 (en) | Single-phase load by the three-phase network phases uniform distribution device | |
| CN202422974U (en) | On-load voltage regulation transformer | |
| CN112821403A (en) | Single-phase or three-phase electromagnetic series-connection type power transmission line power flow control topological circuit | |
| WO2008153257A1 (en) | Transformer | |
| CN111446074A (en) | Transformer device | |
| US11159091B2 (en) | Stackable isolated voltage optimization module | |
| CN103138266A (en) | Rural power grid low voltage circuit tail end compensator of primary side regulating | |
| CN101340153A (en) | Arc extinguishing compensating type AC voltage regulating and stabilizing apparatus | |
| CN101483393A (en) | Variable electricity supply apparatus for core induction furnace | |
| NO772337L (en) | ELECTRIC VARIABLE THREE-PHASE POWER SOURCE. | |
| CN201430534Y (en) | Mutual-control compensation type alternating current stabilized voltage regulating device | |
| CN201199634Y (en) | Electric network positive-negative reactive compensator | |
| CN203119483U (en) | Primary adjusting rural power grid low-voltage line end compensator | |
| CN104882259A (en) | Phase-shifting winding type voltage-regulating rectifier transformer and voltage regulating method thereof |
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 | ||
| 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 |
|
| 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. |