CN209389716U - A kind of SVG and SVC mixing reactive power compensator - Google Patents
A kind of SVG and SVC mixing reactive power compensator Download PDFInfo
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- CN209389716U CN209389716U CN201822134175.8U CN201822134175U CN209389716U CN 209389716 U CN209389716 U CN 209389716U CN 201822134175 U CN201822134175 U CN 201822134175U CN 209389716 U CN209389716 U CN 209389716U
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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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Abstract
The utility model relates to reactive power compensation technology fields, disclose a kind of SVG and SVC mixing reactive power compensator.Including several static passive compensation devices, it is connect with sub- control module；Static reactive generator is connect with total control module；Several sub- control modules, connect one to one with static passive compensation device；Total control module is connect with static reactive generator and each sub- control module respectively.Static passive compensation device includes switching type capacitor group, switching type capacitor group includes capacitor and the first transformer, capacitor is correspondingly connected with the first transformer, the primary coil of first transformer includes several tap-changing windings and switch module, each tap-changing windings connect a switch module, and switch module is serially connected；Switch module is connect with sub- control module.The utility model can accurately control capacitor both end voltage in switching capacitance group, adjust the part SVC and effectively compensate to the reactive power of power grid, control process is simple and quick, and control result is accurate, widely applicable.
Description
Technical field
The utility model relates to reactive power compensation technology fields, more particularly to a kind of SVG and SVC mixing reactive power compensator
Design.
Background technique
Technique of Compensating Capacitance for Reactive is from traditional capacitor shunt compensation to SVG technology transition.So-called SVG
(Static Var Generator) is static reactive generator, is usually the electric semiconductor bridge-type change referred exclusively to by from commutation
Device is flowed to carry out the device of dynamic passive compensation.With it is traditional using TCR compared with the SVC device of representative, the adjustment speed of SVG is more
Fastly, range of operation is wide, and can greatly reduce after taking the measures such as multiplex, more level or PWM technology humorous in compensation electric current
The content of wave.Importantly, reactor and capacity cell that SVG is used are more than reactor used in SVC and capacity cell
Want small, this will be substantially reduced the cost of device.SVG has such superior performance, it is shown that the hair of dynamic reactive compensation device
Open up direction.If it is idle to carry out compensation system using SVG merely, although solving the problems, such as quick response, SVG is compensable
Capacity is generally smaller, wants the compensation range for obtaining larger capacity, needs multi-platform SVG to be incorporated into the power networks, such higher cost.Electricity
The SVC (Static Var Compensator, static passive compensation device) generallyd use in Force system reactive compensation is divided into two
Class, one kind are magnetic controls, another kind of to control for thyristor, and wherein thyristor controls for opposite magnetic control, have rapid reaction,
Compensation effect is good, energy-saving effect outstanding feature, but it is this it is opposite it is quick compared with SVG (Static Var Generator,
Static reactive generator) quick compensation effect for there are also very big gap.Therefore, reactive compensation is carried out in conjunction with SVC and SVG
It is a kind of relatively inexpensive mode.Such as application No. is a kind of 201720775129.9 SVG and SVC mixing reactive compensation dresses
It sets, this application has selected two ways just to carry out mixed compensation, but the part SVC can not be adjusted in this kind of mode, only
The variation of power grid, bad adaptability are adapted to by the part SVG.And SVC be partially due to can not regulate and control, it in some cases can only be from electricity
It is cut out in net, causes vacant waste.
Utility model content
It is idle to provide a kind of SVG and SVC mixing for the shortcomings that SVC can not regulate and control in the prior art for the utility model
Compensation device.
The utility model solves the problems, such as SVC regulation, and adjustment switching capacitance group capacitor both ends electricity is utilized in present design
The mode of pressure come change capacitor sending it is idle.The first primary voltage of transformer is adjusted using merogenesis control, each section passes through
Multiple electronic switches are controlled to adjust voltage, have haved the function that accurate control capacitor both end voltage to change.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals:
A kind of SVG and SVC mixing reactive power compensator, including several static passive compensation devices, parallel connection access power grid
A, B, C and N phase line is connect with sub- control module；
Static reactive generator, A, B, C and N phase line of parallel connection access power grid, connect with total control module；
Several sub- control modules, connect one to one with static passive compensation device, for controlling each static var compensation
Repay device work；
Total control module is connect with static reactive generator and each sub- control module respectively, for controlling each sub- control
The work of molding block, control static reactive generator work；
Static passive compensation device includes switching type capacitor group, and switching type capacitor group includes three capacitors and three the
The secondary coil of one transformer, capacitor and the first transformer connects one to one, and the primary coil of every one first transformer includes
Several tap-changing windings and switch module identical with tap-changing windings quantity, each tap-changing windings connect a switch module, switch
It is serially connected between module；Switch module is connect with sub- control module.
Capacitor issues idle related with voltage swing that is being subject to thereon, when powering on pressure to capacitor and being adjusted, also together
When regulated and controled capacitor output reactive compensation.Sub- control module changes the first transformation by the break-make situation of control switch module
Device primary side winding output voltage, to change voltage on capacitor.Total control module issues instruction, control to each sub- control module
Sub- control module work.
Preferably, switching type capacitor group further includes three the second transformers, the second secondary transformer and switch
The primary coil of the first transformer of module connects, and the primary coil of the second transformer accesses power grid.
Second secondary transformer voltage-phase is identical with the voltage of the power supply of access.
Preferably, each capacitor and the first secondary transformer being attached thereto form series connection group, three series connection groups
Star-like connection or triangle connection.
Preferably, switch module includes 5 electronic switches, respectively first switch to the 5th is switched, tap-changing windings one
End connection first switch and the second switch, the other end connect third switch and the 4th switch, first switch and third switch series connection,
Second switch and the 4th switch series connection, extraction wiring point 1 between first switch and third switch, second switch and the 4th switch
Between draw wiring point 2, the 5th switch be connected between wiring point and wiring point 2；The wiring point 1 of adjacent switch module and wiring
Point 2 is connected with each other.
Last point of first transformer primary winding has been divided into several tap-changing windings, and remainder does not change.It opens when first
It closes and the 4th switch conduction is equivalent to tap-changing windings and forward concatenates into unchanged windings section when other 3 switches disconnect
In, increase equivalent winding the number of turns of unchanged windings section；When second switch and third switch conduction, other 3 electronics
When switch disconnects, it is equivalent to tap-changing windings and reversely concatenates in unchanged windings section, reduce equivalent winding the number of turns；When
Five switch conductions are equivalent to tap-changing windings and do not access circuit when other 4 switches disconnect, the corresponding pressure regulation of the switch module around
Group is not concatenated into unchanged windings section.
Preferably, electronic switch includes thyristor or IGBT element or thyristor and IGBT element.
The utility model has significant technical effect: can accurately control switching due to using above technical scheme
Capacitor both end voltage in capacitance group adjusts the part SVC and carries out reactive compensation, widely applicable.Control process is simple and quick, does not prolong
Late, control result is accurate, can effectively compensate to the reactive power of power grid.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1.
Fig. 2 is the switched capacitor group structural schematic diagram of the utility model embodiment 1.
Fig. 3 is the first transformer device structure schematic diagram of the utility model embodiment 1.
Fig. 4 is the switch module structural schematic diagram of the utility model embodiment 2.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
Embodiment 1
As shown in Figure 1 to Figure 3, a kind of SVG and SVC mixing reactive power compensator, including several static passive compensation devices,
A, B, C and N phase line of parallel connection access power grid, connect with sub- control module；
Static reactive generator, A, B, C and N phase line of parallel connection access power grid, connect with total control module；
Several sub- control modules, connect one to one with static passive compensation device, for controlling each static var compensation
Repay device work；
Total control module is connect with static reactive generator and each sub- control module respectively, for controlling each sub- control
The work of molding block, control static reactive generator work；
Static passive compensation device includes switching type capacitor group, and switching type capacitor group includes three capacitors and three the
The secondary coil of one transformer, capacitor and the first transformer connects one to one, and the primary coil of every one first transformer includes
Several tap-changing windings and switch module identical with tap-changing windings quantity, each tap-changing windings connect a switch module, switch
It is serially connected between module；Switch module is connect with sub- control module.
Switching type capacitor group further includes three the second transformers, and the second secondary transformer and switch module first become
The primary coil of depressor connects, and the primary coil of the second transformer accesses power grid.
Each capacitor and the first secondary transformer being attached thereto form series connection group, three series connection group star-like connections.
Embodiment 2
As shown in figure 4, a kind of SVG and SVC mixing reactive power compensator, including several static passive compensation devices, it is in parallel
A, B, C and N phase line for accessing power grid, connect with sub- control module；
Static reactive generator, A, B, C and N phase line of parallel connection access power grid, connect with total control module；
Several sub- control modules, connect one to one with static passive compensation device, for controlling each static var compensation
Repay device work；
Total control module is connect with static reactive generator and each sub- control module respectively, for controlling each sub- control
The work of molding block, control static reactive generator work；
Static passive compensation device includes switching type capacitor group, and switching type capacitor group includes three capacitors and three the
The secondary coil of one transformer, capacitor and the first transformer connects one to one, and the primary coil of every one first transformer includes
Several tap-changing windings and switch module identical with tap-changing windings quantity, each tap-changing windings connect a switch module, switch
It is serially connected between module；Switch module is connect with sub- control module.
Switching type capacitor group further includes three the second transformers, and the second secondary transformer and switch module first become
The primary coil of depressor connects, and the primary coil of the second transformer accesses power grid.
Each capacitor and the first secondary transformer being attached thereto form series connection group, three series connection group star-like connections.
Switch module includes 5 electronic switches, respectively first switch to the 5th switch, tap-changing windings one end connection first
Switch and second switch, the other end connect third switch and the 4th switch, first switch and third switch series connection, second switch and
4th switch series connection draws wiring point 1, draws wiring between second switch and the 4th switch between first switch and third switch
Point 2, the 5th switch are connected between wiring point and wiring point 2；The wiring point 1 of adjacent switch module is mutually interconnected with wiring point 2
It connects.Electronic switch is thyristor.
Embodiment 3
In the present embodiment, electronic switch is IGBT element.Remaining is all same as Example 1.
In short, the above is only the preferred embodiment of the present invention, it is all according to present utility model application the scope of the patents institute
The equivalent changes and modifications of work should all belong to the covering scope of the utility model patent.
Claims (5)
1. a kind of SVG and SVC mixing reactive power compensator, it is characterised in that: including several static passive compensation devices, and couple
A, B, C and N phase line for entering power grid, connect with sub- control module；
Static reactive generator, A, B, C and N phase line of parallel connection access power grid, connect with total control module；
Several sub- control modules, connect one to one with static passive compensation device, for controlling each static reactive dress
Set work；
Total control module is connect with static reactive generator and each sub- control module respectively, for controlling each sub- control mould
Block work, control static reactive generator work；
Static passive compensation device includes switching type capacitor group, and switching type capacitor group includes three capacitors and three first changes
The secondary coil of depressor, capacitor and the first transformer connects one to one, and the primary coil of every one first transformer includes several
Tap-changing windings and switch module identical with tap-changing windings quantity, each tap-changing windings connect a switch module, switch module
Between be serially connected；Switch module is connect with sub- control module.
2. a kind of SVG and SVC mixing reactive power compensator according to claim 1, it is characterised in that: switching type capacitor
Group further includes three the second transformers, and the second secondary transformer is connect with the primary coil of the first transformer of switch module,
The primary coil of second transformer accesses power grid.
3. a kind of SVG and SVC mixing reactive power compensator according to claim 1, it is characterised in that: each capacitor and with
Connection the first secondary transformer formed series connection group, three series connection group star-like connections or triangle connection.
4. a kind of SVG and SVC mixing reactive power compensator according to claim 1, it is characterised in that: switch module includes
To the 5th switch, tap-changing windings one end connects first switch and the second switch, another for 5 electronic switches, respectively first switch
End connection third switch and the 4th switch, first switch and third switch series connection, second switch and the 4th switch series connection, first opens
It closes and draws wiring point 1 between third switch, wiring point 2 is drawn between second switch and the 4th switch, the 5th switch is connected to
Between wiring point and wiring point 2；The wiring point 1 and wiring point 2 of adjacent switch module are connected with each other.
5. a kind of SVG and SVC mixing reactive power compensator according to claim 4, it is characterised in that: electronic switch includes
Thyristor or IGBT element or thyristor and IGBT element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822134175.8U CN209389716U (en) | 2018-12-19 | 2018-12-19 | A kind of SVG and SVC mixing reactive power compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822134175.8U CN209389716U (en) | 2018-12-19 | 2018-12-19 | A kind of SVG and SVC mixing reactive power compensator |
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| CN209389716U true CN209389716U (en) | 2019-09-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113364004A (en) * | 2021-06-29 | 2021-09-07 | 浙江南德电力设备制造有限公司 | Control method and device for low-voltage hybrid dynamic reactive power compensation |
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2018
- 2018-12-19 CN CN201822134175.8U patent/CN209389716U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113364004A (en) * | 2021-06-29 | 2021-09-07 | 浙江南德电力设备制造有限公司 | Control method and device for low-voltage hybrid dynamic reactive power compensation |
| CN113364004B (en) * | 2021-06-29 | 2022-01-25 | 浙江南德电力设备制造有限公司 | Control method and device for low-voltage hybrid dynamic reactive power compensation |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Hybrid Reactive Power Compensation Device for SVG and SVC Effective date of registration: 20230320 Granted publication date: 20190913 Pledgee: Agricultural Bank of China Limited by Share Ltd. South Lake branch Pledgor: ZHEJIANG JINGHE ELECTRONIC TECHNOLOGY CO.,LTD. Registration number: Y2023980035367 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |