CN204333959U - A kind of novel dynamic TSC+SVG mixing reactive power compensator - Google Patents
A kind of novel dynamic TSC+SVG mixing reactive power compensator Download PDFInfo
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- CN204333959U CN204333959U CN201420840428.2U CN201420840428U CN204333959U CN 204333959 U CN204333959 U CN 204333959U CN 201420840428 U CN201420840428 U CN 201420840428U CN 204333959 U CN204333959 U CN 204333959U
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- svg
- tsc
- reactive power
- power compensator
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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
- Y02E40/10—Flexible AC transmission systems [FACTS]
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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 utility model discloses a kind of novel dynamic TSC+SVG mixing reactive power compensator, comprise SVG controller, SVG power cell and TSC branch road, SVG power cell comprises circuit breaker, current sampling unit, reactor and IGBT module, the utility model is by the required idle amount of SVG controller computing system, utilize the characteristic of SVG rapid dynamic response speed, suppress in time voltage fluctuation and apt to change, after steady load, drop into TSC branch road again, it is idle that minimizing SVG sends; After load exits, utilize SVG dynamic response to sponge rapidly the idle amount of mending, and then progressively TSC branch road is excised.Both the characteristic of SVG rapid dynamic response speed can have been played, suppress voltage fluctuation and flicker, also can make up the defect of SVG off-capacity, make SVG be operated in light load conditions simultaneously, extend SVG useful life, more can fine compensation, suppress voltage fluctuation, flickering ability improves greatly.
Description
Technical field
The utility model relates to a kind of reactive power compensator, particularly relates to a kind of novel dynamic TSC+SVG mixing reactive power compensator.
Background technology
The at present reactive power compensation that adopts of each producer's low pressure, has two kinds of compensation ways: one is fixed capacitor compensation arrangement substantially, and the defect of this design is can not dynamic response, exists and mends or the situation of deficient benefit; Another is that independent SVG compensates.Although independent SVG compensates can fast dynamic response, the deficiency of its capacity is also its maximum problem, because capacity is little, can not meet jumbo reactive power compensation demand.
Utility model content
The purpose of this utility model is to provide a kind of novel dynamic TSC+SVG mixing reactive power compensator, can suppress voltage fluctuation and flicker, make up the defect of SVG off-capacity, make SVG be operated in light load conditions simultaneously, extends SVG useful life.More can fine compensation, suppress voltage fluctuation, flickering ability improves greatly.
The utility model adopts following technical proposals:
A kind of novel dynamic TSC+SVG mixing reactive power compensator, comprise SVG controller, SVG power cell and TSC branch road, described SVG power cell comprises circuit breaker, current sampling unit, reactor and IGBT module, described circuit breaker one end is connected with the once end of electrical network CT, the other end is connected with the input of IGBT module by current sampling unit, reactor successively, and the output of current sampling unit connects and is connected with the output of SVG controller respectively with the control signal input of IGBT module; SVG controller is connected with the once end of electrical network CT, for detection of grid current value by electrical network PT; Described TSC branch road comprises multiple TSC branch path, and multiple TSC branch path is connected with the once end of electrical network CT by switch with knifeshaped fuse; Described TSC branch path is by TSC capacitor successively linked reactor, thyristor switch and fuse, and fuse is connected with the once end of CT by switch with knifeshaped fuse.
Described thyristor switch is zero passage detection thyristor switch.
Described capacitor is common capacitor.
The second fuse is also provided with in the middle of described circuit breaker and current sampling unit.
Described TSC branch path capability value size is all equal.
The utility model, by the required idle amount of SVG controller computing system, utilizes the characteristic of SVG rapid dynamic response speed, suppresses voltage fluctuation and apt to change in time, after steady load, then drops into TSC branch road, and that reduces that SVG sends is idle; After load exits, also utilize the characteristic of SVG rapid dynamic response speed, sponged rapidly the idle amount of mending, and then progressively TSC branch road is excised.Both the characteristic of SVG rapid dynamic response speed can have been played, suppress voltage fluctuation and flicker, also can make up the defect of SVG off-capacity, make SVG be operated in light load conditions simultaneously, extend SVG useful life, more can fine compensation, suppress voltage fluctuation, flickering ability improves greatly.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Embodiment
As shown in Figure 1, a kind of novel dynamic TSC+SVG mixing reactive power compensator, comprise SVG controller, SVG power cell and TSC branch road, described SVG power cell comprises circuit breaker L, current sampling unit M, reactor L and IGBT module, described circuit breaker L one end is connected with the once end of electrical network CT, the other end is connected with the input of IGBT module by current sampling unit M, reactor L successively, and the output of current sampling unit M connects and is connected with the output of SVG controller respectively with the control signal input of IGBT module; Described TSC branch road comprises multiple TSC branch path, and multiple TSC branch path is connected with the once end of electrical network CT by switch with knifeshaped fuse K1; Described TSC branch path is by TSC capacitor C successively linked reactor L1, thyristor switch T and fuse FU, and fuse FU is connected with the once end of CT by switch with knifeshaped fuse.
Described thyristor switch T is zero passage detection thyristor switch.
The second fuse FU1 is also provided with in the middle of described circuit breaker L and current sampling unit M.The damage of SCG power cell can be prevented.Described circuit breaker L and fuse FU1 junction are also provided with lightning arrester F, and lightning arrester connects with the earth.The once end junction of circuit breaker L and electrical network CT is also provided with EMC electric capacity C1, ensures the impact resistance of this device.
The utility model SVG master controller and SVG MCU support TSC grouping switching strategy, when the power cell fault of SVG, still can realize automatically regulating and compensating.Further the utility model makes full use of the perceptual adjustable range of SVG, adopt zero passage detection thyristor switch, avoid the impact that throw in-of oscillation and voltage difference cause, grouping switching capacitor shunt compensation branch road, whole device output area is regulated automatically the adjustable range at [-QNsvg------+QNsvg] (note: QNsvg is the rated capacity of SVG) device, solve because of after SVG fault, what fixed capacitor compensation brought send idle problem.
When the system of detecting existed the added time, SVG absorbs idle, has TSC branch path when the state of input, performs and exit TSC shunt operations, if detect simultaneously till SVG does not need absorption idle.SVG absorbs idle, has TSC branch path when the state of input, perform and exit TSC shunt operations if detect simultaneously, till SVG does not need absorption idle, more than detect execution to be transducer and comparator simple program and to control to realize, be field known technology, there is not method and technology feature.
The utility model fully combines SVG fast response time and can the advantage of fine compensation, mixes TSC simultaneously and compensates the compensation capacity expanding again system.Make whole system can suppress voltage flicker fast and effectively, also can meet jumbo reactive power compensation demand simultaneously.
Claims (5)
1. a novel dynamic TSC+SVG mixing reactive power compensator, it is characterized in that: comprise SVG controller, SVG power cell and TSC branch road, described SVG power cell comprises circuit breaker, current sampling unit, reactor and IGBT module, described circuit breaker one end is connected with the once end of electrical network CT, the other end is connected with the input of IGBT module by current sampling unit, reactor successively, and the output of current sampling unit connects and is connected with the output of SVG controller respectively with the control signal input of IGBT module; SVG controller is connected with the once end of electrical network CT, for detection of grid current value by electrical network PT; Described TSC branch road comprises multiple TSC branch path, and multiple TSC branch path is connected with the once end of electrical network CT by switch with knifeshaped fuse; Described TSC branch path is by TSC capacitor successively linked reactor, thyristor switch and fuse, and fuse is connected with the once end of CT by switch with knifeshaped fuse, the control end of thyristor switch, connects the input of SVG master controller.
2. novel dynamic TSC+SVG mixing reactive power compensator according to claim 1, is characterized in that: described thyristor switch is zero passage detection thyristor switch.
3. novel dynamic TSC+SVG mixing reactive power compensator according to claim 2, is characterized in that: described current sampling unit is current transformer.
4. novel dynamic TSC+SVG mixing reactive power compensator according to claim 3, is characterized in that: be also provided with the second fuse in the middle of described circuit breaker and current sampling unit.
5. novel dynamic TSC+SVG mixing reactive power compensator according to claim 4, is characterized in that: described TSC branch path capability value size is all equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840428.2U CN204333959U (en) | 2014-12-26 | 2014-12-26 | A kind of novel dynamic TSC+SVG mixing reactive power compensator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840428.2U CN204333959U (en) | 2014-12-26 | 2014-12-26 | A kind of novel dynamic TSC+SVG mixing reactive power compensator |
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| CN204333959U true CN204333959U (en) | 2015-05-13 |
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| CN201420840428.2U Active CN204333959U (en) | 2014-12-26 | 2014-12-26 | A kind of novel dynamic TSC+SVG mixing reactive power compensator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217331A (en) * | 2018-09-25 | 2019-01-15 | 安徽南瑞继远电网技术有限公司 | Power quality controlling device cluster multiple target based on SVG regulates and controls method online |
| CN110783933A (en) * | 2019-12-03 | 2020-02-11 | 国网江苏省电力有限公司常州供电分公司 | Reactive compensation composite system for transformer substation and control method thereof |
-
2014
- 2014-12-26 CN CN201420840428.2U patent/CN204333959U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217331A (en) * | 2018-09-25 | 2019-01-15 | 安徽南瑞继远电网技术有限公司 | Power quality controlling device cluster multiple target based on SVG regulates and controls method online |
| CN110783933A (en) * | 2019-12-03 | 2020-02-11 | 国网江苏省电力有限公司常州供电分公司 | Reactive compensation composite system for transformer substation and control method thereof |
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