CN108667034A - The connection circuit of power network overvoltage is absorbed using the capacitor of reactive power compensator - Google Patents
The connection circuit of power network overvoltage is absorbed using the capacitor of reactive power compensator Download PDFInfo
- Publication number
- CN108667034A CN108667034A CN201810361349.6A CN201810361349A CN108667034A CN 108667034 A CN108667034 A CN 108667034A CN 201810361349 A CN201810361349 A CN 201810361349A CN 108667034 A CN108667034 A CN 108667034A
- Authority
- CN
- China
- Prior art keywords
- reactive power
- fling
- cut switch
- capacitor
- phase
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention discloses the connection circuits that the capacitor using reactive power compensator in a kind of reactive power compensator field absorbs power network overvoltage, include the capacitor of two groups of reactive power compensators, the fling-cut switch of six reactive power compensators, six inductance, four diodes, the capacitor of reactive power compensator is made of three capacitances, and capacitance connects for triangle, and each vertex passes through series inductance, the fling-cut switch of reactive power compensator is connected to a phase in the three-phase of power grid, use diode forward in parallel respectively in the breakpoint of one group of wherein two-phase fling-cut switch, conducting wire short circuit is used in the breakpoint of another phase fling-cut switch；It uses diode reverse parallel connection respectively in the breakpoint of another group of wherein two-phase fling-cut switch, conducting wire short circuit is used in the breakpoint of another phase fling-cut switch；It further include network voltage restraining device；The input terminal of transformer is also associated with arc suppression coil structural member.The present invention has many advantages, such as to inhibit, absorb power network overvoltage, protection power grid security.
Description
Technical field
The present invention relates to reactive power compensator fields more particularly to a kind of capacitor using reactive power compensator to absorb electricity
The connection circuit of net overvoltage.
Background technology
Microelectronics and power electronic devices increase in power grid at present, due to some operation and some improper disposition, generation
Overvoltage (especially electric welding and electric motor starting, the overvoltage for stopping formation), the harm to these devices is serious.Eliminate this
A little overvoltage play the role of the safe operation of consumer networks particularly important.
Invention content
The technical issues of being solved needed for of the invention be：A kind of capacitor that can absorb, inhibit power network overvoltage is provided to inhale
Receive the connection circuit of power network overvoltage.
To solve the above problems, the technical solution adopted by the present invention is：Electricity is absorbed using the capacitor of reactive power compensator
The connection circuit of net overvoltage, including：The capacitor of two groups of reactive power compensators, six reactive power compensators fling-cut switch,
The capacitor of six inductance, four diodes, the reactive power compensator is made of three capacitances, and capacitance connects for triangle
It connects, and each vertex of triangle is connected to the three of power grid by the fling-cut switch of connect an inductance, a reactive power compensator
Xiang Zhongyi phases, inductance induction reactance is the 0-20% of capacitance capacitive reactance, respectively with one in the breakpoint of one group of wherein two-phase fling-cut switch
A diode forward is in parallel, and conducting wire short circuit is used in the breakpoint of another phase fling-cut switch；In another group of wherein two-phase fling-cut switch
Breakpoint in respectively with a diode reverse parallel connection, conducting wire short circuit is used in the breakpoint of another phase fling-cut switch；It further include power grid
Voltage suppression device, network voltage restraining device include transformer, and the major loop enter line side device of the transformer has overvoltage
Suppressor, the excess voltage suppressor are made of the overvoltage fuse and resistance-capacitance overvoltage absorber being connected in series, the change
The input terminal of depressor is also associated with arc suppression coil structural member, and the circuit end of the arc suppression coil structural member is also in series with high-power resistance
Buffer resistance.
Further, the capacitor above-mentioned using reactive power compensator absorbs the connection circuit of power network overvoltage, wherein：
The fling-cut switch is contactor or combination switch.
Further, the capacitor above-mentioned using reactive power compensator absorbs the connection circuit of power network overvoltage, wherein：
The winding neutral point of the arc suppression coil structural member and transformer connects.
Further, the capacitor above-mentioned using reactive power compensator absorbs the connection circuit of power network overvoltage, wherein：
The arc suppression coil structural member adjusts number of taps and is more than 9 using there is load turn-adjusting regulative mode.
The beneficial effects of the invention are as follows：Inhibit, absorb overvoltage in power grid, improves electric network security.
Description of the drawings
Fig. 1 is the circuit for the connection circuit that the capacitor of the present invention using reactive power compensator absorbs power network overvoltage
Connection diagram.
Fig. 2 is the structure diagram of excess voltage suppressor in Fig. 1.
Specific implementation mode
Below in conjunction with the accompanying drawings and preferred embodiment is described in further detail technical solutions according to the invention.
As shown in Figure 1, the connection circuit of power network overvoltage is absorbed using the capacitor of reactive power compensator, including：Two groups
Fling-cut switch, six inductance, four diodes of the capacitor of reactive power compensator, six reactive power compensators, the nothing
The capacitor of Reactive power compensation installations is made of three capacitances, and capacitance connects for triangle, and each vertex of triangle passes through string
One inductance of connection, a reactive power compensator fling-cut switch be connected to a phase in the three-phase of power grid, inductance induction reactance is capacitance capacitive reactance
0-20%, respectively with a diode forward parallel connection, another phase switching in the breakpoint of one group of wherein two-phase fling-cut switch
Conducting wire short circuit is used in the breakpoint of switch；It is reversed with a diode respectively in the breakpoint of another group of wherein two-phase fling-cut switch
Conducting wire short circuit is used in parallel connection in the breakpoint of another phase fling-cut switch；Further include network voltage restraining device, network voltage restraining device
Including transformer, the major loop enter line side device of the transformer has excess voltage suppressor, and the excess voltage suppressor is by connecting
Made of overvoltage fuse and resistance-capacitance overvoltage absorber composition, the input terminal of the transformer is also associated with arc blowout wire loop knot
The circuit end of component, the arc suppression coil structural member is also in series with high-power damping resistance.In the present embodiment, the switching
Switch is contactor or combination switch.In the present embodiment, the winding neutral point of the arc suppression coil structural member and transformer connects
It connects.In the present embodiment, the arc suppression coil structural member adjusts number of taps and is more than 9 using there is load turn-adjusting regulative mode.
The advantages of capacitor using reactive power compensator of above structure absorbs the connection circuit of power network overvoltage is：
Inhibit, absorb overvoltage in power grid, improves electric network security.
Claims (4)
1. the connection circuit of power network overvoltage is absorbed using the capacitor of reactive power compensator, including：Two groups of reactive power compensators
Capacitor, six reactive power compensators fling-cut switch, six inductance, four diodes, the reactive power compensator
Capacitor is made of three capacitances, and capacitance connects for triangle, and each vertex of triangle passes through inductance, one of connecting
The fling-cut switch of reactive power compensator is connected to a phase in the three-phase of power grid, and inductance induction reactance is the 0-20% of capacitance capacitive reactance, special
Sign is：Respectively with a diode forward parallel connection, another congenial incision in the breakpoint of one group of wherein two-phase fling-cut switch
Conducting wire short circuit is used in the breakpoint of pass；In the breakpoint of another group of wherein two-phase fling-cut switch respectively with a diode reversely simultaneously
Join, conducting wire short circuit is used in the breakpoint of another phase fling-cut switch；Further include network voltage restraining device, network voltage restraining device packet
Include transformer, the major loop enter line side device of the transformer has an excess voltage suppressor, the excess voltage suppressor by series connection and
At overvoltage fuse and resistance-capacitance overvoltage absorber composition, the input terminal of the transformer is also associated with arc suppression coil structure
The circuit end of part, the arc suppression coil structural member is also in series with high-power damping resistance.
2. the capacitor according to claim 1 using reactive power compensator absorbs the connection circuit of power network overvoltage,
It is characterized in that：The fling-cut switch is contactor or combination switch.
3. the capacitor according to claim 1 using reactive power compensator absorbs the connection circuit of power network overvoltage,
It is characterized in that：The winding neutral point of the arc suppression coil structural member and transformer connects.
4. the capacitor according to claim 1 using reactive power compensator absorbs the connection circuit of power network overvoltage,
It is characterized in that：The arc suppression coil structural member adjusts number of taps and is more than 9 using there is load turn-adjusting regulative mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810361349.6A CN108667034A (en) | 2018-04-20 | 2018-04-20 | The connection circuit of power network overvoltage is absorbed using the capacitor of reactive power compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810361349.6A CN108667034A (en) | 2018-04-20 | 2018-04-20 | The connection circuit of power network overvoltage is absorbed using the capacitor of reactive power compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108667034A true CN108667034A (en) | 2018-10-16 |
Family
ID=63780750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810361349.6A Pending CN108667034A (en) | 2018-04-20 | 2018-04-20 | The connection circuit of power network overvoltage is absorbed using the capacitor of reactive power compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108667034A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449952A (en) * | 2018-12-20 | 2019-03-08 | 中国南方电网有限责任公司超高压输电公司南宁局 | 500kV 35 kV Side of Main Transformer capacitor abnormal overvoltage emulation mode |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09182296A (en) * | 1995-12-20 | 1997-07-11 | Aichi Electric Co Ltd | Reactive power compensation device |
| CN102738783A (en) * | 2012-06-27 | 2012-10-17 | 昌华电气设备集团有限公司 | Connecting circuit for absorbing power grid overvoltage by utilizing capacitors of reactive compensation devices |
| CN204967278U (en) * | 2015-10-09 | 2016-01-13 | 宁波晨岚电气设备有限公司 | Energy -conserving reactive power compensator cabinet based on intelligence electric capacity |
| CN205882687U (en) * | 2016-06-16 | 2017-01-11 | 安徽泰格电气科技股份有限公司 | Electric wire netting overvoltage suppressing device |
-
2018
- 2018-04-20 CN CN201810361349.6A patent/CN108667034A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09182296A (en) * | 1995-12-20 | 1997-07-11 | Aichi Electric Co Ltd | Reactive power compensation device |
| CN102738783A (en) * | 2012-06-27 | 2012-10-17 | 昌华电气设备集团有限公司 | Connecting circuit for absorbing power grid overvoltage by utilizing capacitors of reactive compensation devices |
| CN204967278U (en) * | 2015-10-09 | 2016-01-13 | 宁波晨岚电气设备有限公司 | Energy -conserving reactive power compensator cabinet based on intelligence electric capacity |
| CN205882687U (en) * | 2016-06-16 | 2017-01-11 | 安徽泰格电气科技股份有限公司 | Electric wire netting overvoltage suppressing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449952A (en) * | 2018-12-20 | 2019-03-08 | 中国南方电网有限责任公司超高压输电公司南宁局 | 500kV 35 kV Side of Main Transformer capacitor abnormal overvoltage emulation mode |
| CN109449952B (en) * | 2018-12-20 | 2022-02-15 | 中国南方电网有限责任公司超高压输电公司南宁局 | Method for simulating abnormal overvoltage of capacitor on 35kV side of 500kV main transformer |
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Application publication date: 20181016 |