CN102709919A - High-voltage reactive compensating device applied in power system - Google Patents
High-voltage reactive compensating device applied in power system Download PDFInfo
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- CN102709919A CN102709919A CN2012101677960A CN201210167796A CN102709919A CN 102709919 A CN102709919 A CN 102709919A CN 2012101677960 A CN2012101677960 A CN 2012101677960A CN 201210167796 A CN201210167796 A CN 201210167796A CN 102709919 A CN102709919 A CN 102709919A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The invention relates to a high-voltage reactive compensating device applied in a power system. The high-voltage reactive compensating device comprises a power grid reactive compensating access point, a compensating capacitor located in the grid reactive compensating access point, and a winding transformer consisting of a winding coil and an iron core, wherein the winding coil is composed of a primary winding and a secondary winding; the primary winding is connected with the power grid; the secondary winding is connected with the compensating capacitor in series to be connected with the power grid; winding directions of the coils of the primary winding and the secondary winding on the iron core are opposite; and voltages on the dotted terminals of the primary winding and the secondary winding are opposite. With the adoption of the reactive compensating device, the transformer with small capacity can be used to control reactive output with high capacity, the output efficiency is high, adjustment is convenient, the overload capacity is strong, and high-voltage reactive compensating device is suitable for being applied in high and medium power situations; in addition, the cost of the whole voltage-regulating and capacitance-regulating device can be effectively reduced, and transformer power consumption is lowered on the condition that the technical index is maintained.
Description
Technical field
The present invention relates to a kind of high-pressure reactive compensation device that is applied to electric power system, belong to quality of power supply control field.
Background technology
In recent years; The generally use of power electronic equipment and nonlinear load; Make harmonic current and reactive current inject electrical network in a large number, the safe operation of serious threat electrical network and electric equipment is used with normal, carries out filtering and compensate being paid attention to by People more and more to harmonic wave is idle.Power system reactive power compensation has a lot of technical schemes, and it is wherein a kind of that voltage-controlled accent holds, and its principle is to add adjustable voltage at the two ends of fixing reactive-load compensation capacitor, regulates reactive power.
Do not need full voltage range to regulate because voltage-controlled accent holds, general maximum voltage adjustable range is 40%～100% of a rated value.Shown in accompanying drawing 1.What extensively adopt at capacitor adjusted voltage at present, is autotransformer 6.Though autotransformer is littler than common transformer size, cost is little, must be that 100% full voltage is regulated, and comes voltage-controlled accent to hold so must adopt with the equal capacity autotransformer of capacitor reactive capability.So supporting autotransformer cost very high, in a whole set of reactive power compensator, accounted for very big proportion.Therefore, how to design a kind of can output with the bigger capacity of less volume controlled, delivery efficiency is high, and reactive power compensator easy to adjust becomes the direction that those of ordinary skills make great efforts.
Summary of the invention
The purpose of this invention is to provide a kind of high-pressure reactive compensation device that is applied to electric power system; This reactive power compensator can be used the bigger reactive capability output of the transformer control of less capacity, and delivery efficiency is high, and is easy to adjust; Overload capacity is strong, is well suited under the high and medium power occasion, using; Secondly, can effectively reduce the cost of a whole set of pressure regulating and capacitance regulating device, keep under the constant situation of its technical indicator simultaneously, the power consumption of transformer self also reduces.
For achieving the above object, the technical scheme that the present invention adopts is:
A kind of high-pressure reactive compensation device that is applied to electric power system; Comprise the electric network reactive compensation access point and be positioned at the compensation condenser of this electric network reactive compensation access point; Also comprise the winding transformer of forming by winding coil and iron core; Said winding coil is made up of winding and secondary winding, and its winding connects electrical network, secondary winding be connected electrical network after said compensation condenser is connected; A said winding and the coiling direction of secondary winding on said iron core are reverse, the terminal voltage anti-phase of the same name of this winding and secondary winding.Because the technique scheme utilization, the present invention compared with prior art has advantage and effect:
The present invention is applied to the high-pressure reactive compensation device of electric power system; Its available reactive capability output bigger than the transformer control of low capacity, delivery efficiency is high, and is easy to adjust; Overload capacity is strong; Being well suited under the high and medium power occasion, using, is 40%～100% of rated value because voltage-controlled accent holds the maximum voltage adjustable range, thus the present invention by way of compensation the winding transformer capacity of transformer be the 1-40%=60% of autotransformer capacity; Because the cost of transformer depends on its capacity to a great extent; So the voltage-controlled apparatus for adjusting capacity of equal capacity adopts compensator transformer lower than traditional autotransformer scheme cost, keeping under the constant situation of its technical indicator, the power consumption of transformer self also reduces.
Description of drawings
Accompanying drawing 1 is a prior art reactive power compensator structure primary connection sketch map;
Accompanying drawing 2 is reactive power compensator primary connection sketch map of the present invention.
In the above accompanying drawing: 1, electric network reactive compensation access point; 2, compensation condenser; 3, iron core; 4, winding transformer; 5, winding; 51, winding; 52, secondary winding.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Embodiment: a kind of high-pressure reactive compensation device that is applied to electric power system; Comprise electric network reactive compensation access point 1 and the compensation condenser 2 that is positioned at this electric network reactive compensation access point 1; Also comprise the winding transformer of forming by winding coil 5 and iron core 34; Said winding coil 5 is made up of winding 51 and secondary winding 52, and its winding 51 connects electrical networks, secondary winding 52 be connected electrical network after said compensation condenser 2 is connected; A said winding 51 is reverse with the coiling direction of secondary winding coil 52 on said iron core 3, the terminal voltage anti-phase of the same name of this winding 51 and secondary winding 52.
The secondary winding 52 of winding coil 5 is connected in the main circuit through on load tap changer; Phase place and input voltage are opposite; A winding 51 of winding transformer 4 inserts rated voltage; The bucking voltage of secondary winding coil 52 output anti-phases, that is: output voltage=input voltage-bucking voltage is shown in accompanying drawing.
The winding transformer 4 of transformer is output as sinusoidal wave no Harmonic Interference by way of compensation; Its transformer capacity is merely the capacity of the part that needs adjusting; The idle output of the capacity that the transformer control of therefore available less capacity is bigger, delivery efficiency is high, and is easy to adjust; Overload capacity is strong, is well suited under the high and medium power occasion, using.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (1)
1. high-pressure reactive compensation device that is applied to electric power system; Comprise electric network reactive compensation access point (1) and be positioned at the compensation condenser (2) of this electric network reactive compensation access point (1); It is characterized in that: also comprise the winding transformer of forming by winding coil (5) and iron core (3) (4); Said winding coil (5) is made up of a winding (51) and secondary winding (52); Its winding (51) connects electrical network; Be connected electrical network after the series connection of secondary winding (52) and said compensation condenser (2), a said winding (51) and the coiling direction of secondary winding (52) on said iron core (3) are reverse, the terminal voltage anti-phase of the same name of this winding (51) and secondary winding (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101677960A CN102709919A (en) | 2012-05-28 | 2012-05-28 | High-voltage reactive compensating device applied in power system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101677960A CN102709919A (en) | 2012-05-28 | 2012-05-28 | High-voltage reactive compensating device applied in power system |
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| CN102709919A true CN102709919A (en) | 2012-10-03 |
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| CN2012101677960A Pending CN102709919A (en) | 2012-05-28 | 2012-05-28 | High-voltage reactive compensating device applied in power system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07200083A (en) * | 1993-12-28 | 1995-08-04 | Ngk Insulators Ltd | Static type reactive power compensator |
| CN2488215Y (en) * | 2001-03-28 | 2002-04-24 | 西南交通大学 | Reactive compensator |
| CN1525616A (en) * | 2003-09-12 | 2004-09-01 | 贵州工业大学 | Method for adjusting reactive power of capacitor and apparatus therefor |
| CN101615806A (en) * | 2009-07-29 | 2009-12-30 | 南宁微控技术有限公司 | Phase-control reactive power dynamic compensation device and compensation method thereof |
| CN101968989A (en) * | 2010-09-19 | 2011-02-09 | 广州智光电气股份有限公司 | High power pulse transformer |
| CN202749819U (en) * | 2012-05-28 | 2013-02-20 | 苏州工业园区和顺电气股份有限公司 | High-voltage reactive power compensator used in electric system |
-
2012
- 2012-05-28 CN CN2012101677960A patent/CN102709919A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07200083A (en) * | 1993-12-28 | 1995-08-04 | Ngk Insulators Ltd | Static type reactive power compensator |
| CN2488215Y (en) * | 2001-03-28 | 2002-04-24 | 西南交通大学 | Reactive compensator |
| CN1525616A (en) * | 2003-09-12 | 2004-09-01 | 贵州工业大学 | Method for adjusting reactive power of capacitor and apparatus therefor |
| CN101615806A (en) * | 2009-07-29 | 2009-12-30 | 南宁微控技术有限公司 | Phase-control reactive power dynamic compensation device and compensation method thereof |
| CN101968989A (en) * | 2010-09-19 | 2011-02-09 | 广州智光电气股份有限公司 | High power pulse transformer |
| CN202749819U (en) * | 2012-05-28 | 2013-02-20 | 苏州工业园区和顺电气股份有限公司 | High-voltage reactive power compensator used in electric system |
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Application publication date: 20121003 |