CN108233342A - A kind of protective device of series compensation equipment - Google Patents
A kind of protective device of series compensation equipment Download PDFInfo
- Publication number
- CN108233342A CN108233342A CN201611200416.3A CN201611200416A CN108233342A CN 108233342 A CN108233342 A CN 108233342A CN 201611200416 A CN201611200416 A CN 201611200416A CN 108233342 A CN108233342 A CN 108233342A
- Authority
- CN
- China
- Prior art keywords
- series
- compensation equipment
- spark gap
- protective device
- series compensation
- 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
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
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- 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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1807—Arrangements for adjusting, eliminating or compensating reactive power in networks using series compensators
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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
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention proposes a kind of protective device of series compensation equipment; between series transformer winding terminal bridge thyristor bypass switch, spark gap and and by-pass switch; after failure generation, before by-pass switch combined floodgate; reach definite value action when overvoltage, the conducting of brake tube by-pass switch or spark gap occurs in series compensation equipment; series transformer winding is bypassed, overvoltage protection is carried out to equipment.Thyristor bypass switch, spark gap and the by-pass switch of the protection system cooperate, and carry out harmonious protection to equipment overvoltage, prevent overvoltage stress from continuing to develop, improve the reliability of equipment entirety.
Description
Technical field
The invention belongs to power electronics fields in electric system, and in particular to a kind of protection dress of series compensation equipment
It puts.
Background technology
Static synchronous compensator uses voltage source converter, main electric power electronic component therein, capacitance relative to
The equipment such as transformer, reactor, circuit are to overvoltage quite sensitive.
For the engineering of actual motion, overvoltage is the significant threat of converter valve, the device of valve group, capacitance overvoltage ability
It is limited.The overvoltage of Microsecond grade this may result in the damage of device.For power electronic devices, control circuit or internal fault
Equipment may all be caused to be in charged state, capacitance voltage constantly rises, and ultimately causes the explosion of device overvoltage.To protect other
Partly, it prevents from exploding, reduces the influence to entire valve group and system, need in time failure removal.Mechanical bypass switch moves
The regular hour is needed, charging current may cause voltage further to increase within this time, it is therefore desirable to equipment in addition
Quickly cut off failure.
The alternating current-direct current power network overvoltage that time is extremely short, amplitude is high, generally can not be only such as switching overvoltage, lightning surge
Protected by protection system, need to design by rational pressure resistance, be such as configured thyristor bypass switch and spark gap into
Row prevention.But thyristor bypass switch and spark gap actuation time are relatively short,
Therefore, it is necessary to be directed to protection system, thyristor bypass switch and the advantage and disadvantage of spark gap, formulate a kind of more fast
Speed is effectively protected system, can in system disturbance, module failure or alternating current-direct current power network overvoltage, prevent overvoltage stress after
Supervention exhibition improves the reliability of transverter.
Invention content
The purpose of the present invention is to provide a kind of protective device of series compensation equipment, can ensure that equipment is disturbed in system
When dynamic, module failure or alternating current-direct current power network overvoltage, it can reliably act, equipment is protected not receive voltage stress and damaged.
In order to achieve the above object, solution of the invention is：
A kind of protective device of series compensation equipment, the protection system of the series compensation equipment include series transformer,
By-pass switch, spark gap and thyristor bypass switch,
Thyristor bypass switch, spark gap and the by-pass switch that configuration bridges at series transformer valve side winding both ends,
Three is in parallel；
The safety of series compensation equipment is protected in thyristor bypass switch, spark gap and by-pass switch cooperation.
As the further priority scheme of the present invention, when the crystalline substance of the series transformer valve side winding both ends of configuration bridging
When the level of protection of brake tube by-pass switch and spark gap can not protect series compensation equipment, configuration is connected across series transformer
The thyristor bypass switch and spark gap in parallel at line side winding both ends.
As the further priority scheme of the present invention, on the side of series transformer line side winding both ends configuration bridging
Way switch.
As the further priority scheme of the present invention, the other sides of series transformer using star-star connection mode or
Using delta connection mode.
As the further priority scheme of the present invention, the other side windings of series transformer use star-star connection mode
When, the series transformer increases balance winding.
As the further priority scheme of the present invention, the other side windings of series transformer use star-star connection mode
When, neutral-point solid ground or resistance grounded.
As the further priority scheme of the present invention, when the series transformer includes balance winding, winding two is balanced
The thyristor bypass switch and spark gap of bridging are not configured for end.
As the further priority scheme of the present invention, wherein one end of the series transformer balance winding is directly grounded.
As the further priority scheme of the present invention, at least one end of the balance winding of the series transformer is through thyristor
By-pass switch is grounded with spark gap.
Beneficial effects of the present invention are to provide a kind of protective device of series compensation equipment, can ensure that equipment is being
When system disturbance, module failure or alternating current-direct current power network overvoltage, it can reliably act, equipment is protected not receive voltage stress and damaged
It is bad, so as to improve the reliability of equipment entirety, it is suitable for engineer application.
Description of the drawings
Fig. 1 is that (series transformer low-pressure side adds balance using star connection for the protection system of series compensation equipment of the present invention
The mode of connection of winding) structure chart；
Fig. 2 is that (series transformer low-pressure side adds balance using star connection for the protection system of series compensation equipment of the present invention
The mode of connection of winding) structure chart, line side winding both ends configuration bridging spark gap and thyristor bypass switch；
Fig. 3 is that (series transformer low-pressure side adds balance using star connection for the protection system of series compensation equipment of the present invention
The mode of connection of winding) structure chart, line side winding both ends configuration by-pass switch；
Fig. 4 be series compensation equipment of the present invention protection system (series transformer low-pressure side use triangle wiring side
Formula) structure chart；
Fig. 5 is balance winding connection mode figure, has one end to be directly grounded；
Fig. 6 is balance winding connection mode figure, and at least one end is grounded through thyristor bypass switch and spark gap；
Fig. 7 is delta connection mode figure.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
The present invention proposes a kind of protective device of series compensation equipment, as shown in Figure 1, the guarantor of the series compensation equipment
Protecting system is including but not limited to series transformer, by-pass switch, spark gap and thyristor bypass switch, in series transformer valve
Thyristor bypass switch, spark gap and the by-pass switch of side winding both ends configuration bridging, three are in parallel；Thyristor bypass is opened
The safety of series compensation equipment is protected in pass, spark gap and by-pass switch cooperation.
As the thyristor bypass switch of the series transformer valve side winding both ends of configuration bridging and the guarantor of spark gap
When shield level can protect series compensation equipment, the thyristor mounted on series transformer line side winding both ends can not be configured
By-pass switch and spark gap, as shown in Figure 1.
When the protection of the brake tube by-pass switch and spark gap of the bridging of the series transformer valve side winding both ends of the configuration
When level can not protect series compensation equipment, configuration is connected across by the brake tube in parallel at series transformer line side winding both ends
Way switch and spark gap, as shown in Figure 2.
The by-pass switch of bridging can also be configured at the series transformer line side winding both ends, if peace is configured simultaneously
Brake tube by-pass switch and spark gap in parallel mounted in series transformer line side winding both ends, then three is in parallel, further
The reliability of protection system is improved, as shown in figure 3,.
Star-star connection mode can be used in the other sides of series transformer, can also use delta connection mode, such as scheme
4th, shown in Fig. 7.
When the other side windings of series transformer use star-star connection mode, the series transformer increase balance around
Group, as shown in Figure 5.
When the other side windings of series transformer use star-star connection mode, neutral point can be directly grounded or through resistance
Ground connection, as shown in Figure 5.
When the series transformer includes balance winding, balance winding both ends be not configured the brake tube by-pass switch of bridging with
Spark gap.
Wherein one end of the series transformer balance winding is directly grounded.As shown in Figure 5.
At least one end of the balance winding of the series transformer is grounded through brake tube by-pass switch and spark gap, further
The reliability of protection system is improved, as shown in Figure 6.
Finally it should be noted that：Only illustrate technical scheme of the present invention rather than its limitations with reference to above-described embodiment.Institute
The those of ordinary skill in category field is to be understood that：Those skilled in the art can repair the specific embodiment of the present invention
Change or equivalent replacement, but these modifications or change are being applied within pending patent requirements protection domain.
Claims (9)
1. a kind of protective device of series compensation equipment, it is characterised in that：The protection system of the series compensation equipment includes string
Join transformer, by-pass switch, spark gap and thyristor bypass switch,
In thyristor bypass switch, spark gap and the by-pass switch of the configuration bridging of series transformer valve side winding both ends, three
It is in parallel；
The safety of series compensation equipment is protected in thyristor bypass switch, spark gap and by-pass switch cooperation.
2. a kind of protective device of series compensation equipment as described in claim 1, which is characterized in that when the series connection of the configuration
The thyristor bypass switch of transformer valve side winding both ends bridging and the level of protection of spark gap can not protect series compensation
During equipment, configuration is connected across the thyristor bypass switch and spark gap in parallel at series transformer line side winding both ends.
3. a kind of protective device of series compensation equipment as described in claim 1, which is characterized in that in the series transformer
The by-pass switch of line side winding both ends configuration bridging.
4. a kind of protective device of series compensation equipment as described in claim 1, which is characterized in that the series transformer its
Its side is using star-star connection mode or uses delta connection mode.
5. a kind of protective device of series compensation equipment as claimed in claim 4, which is characterized in that the series transformer its
When its side winding uses star-star connection mode, the series transformer increases balance winding.
6. a kind of protective device of series compensation equipment as claimed in claim 4, which is characterized in that the series transformer its
When its side winding uses star-star connection mode, neutral-point solid ground or resistance grounded.
A kind of 7. protective device of series compensation equipment as claimed in claim 5, which is characterized in that the series transformer packet
During containing balance winding, the thyristor bypass switch and spark gap of bridging are not configured for balance winding both ends.
8. a kind of protective device of series compensation equipment as claimed in claim 5, which is characterized in that the series transformer is put down
Wherein one end of weighing apparatus winding is directly grounded.
9. a kind of protective device of series compensation equipment as claimed in claim 5, which is characterized in that the series transformer
At least one end for balancing winding is grounded through thyristor bypass switch and spark gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200416.3A CN108233342A (en) | 2016-12-22 | 2016-12-22 | A kind of protective device of series compensation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200416.3A CN108233342A (en) | 2016-12-22 | 2016-12-22 | A kind of protective device of series compensation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108233342A true CN108233342A (en) | 2018-06-29 |
Family
ID=62657058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611200416.3A Pending CN108233342A (en) | 2016-12-22 | 2016-12-22 | A kind of protective device of series compensation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108233342A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002247760A (en) * | 2001-02-15 | 2002-08-30 | Toshiba Corp | Starting method of serial compensator |
| US20070250217A1 (en) * | 2006-04-25 | 2007-10-25 | Korea Electric Power Corporation | System and method for automatically operating upfc (unified power flow controller) connected to scada (supervisory control and data acquisition) |
| US20140266145A1 (en) * | 2013-03-15 | 2014-09-18 | E. Energy Double Tree Limited | Power flow control apparatus |
| CN104113060A (en) * | 2014-07-23 | 2014-10-22 | 南京南瑞继保电气有限公司 | Convertible static synchronous series compensator |
| CN105606934A (en) * | 2016-01-14 | 2016-05-25 | 江苏省电力公司电力科学研究院 | Charging starting debugging method for UPFC serial transformer |
| CN105652685A (en) * | 2014-11-14 | 2016-06-08 | 国家电网公司 | Function simulation device for dynamic simulation experiments |
| CN205595798U (en) * | 2016-03-14 | 2016-09-21 | 全球能源互联网研究院 | Modified compounding in parallel type unified power flow controller |
| CN106159976A (en) * | 2016-08-16 | 2016-11-23 | 南京南瑞继保电气有限公司 | A kind of series compensation device |
| CN206340964U (en) * | 2016-12-22 | 2017-07-18 | 南京南瑞继保电气有限公司 | A kind of protection device of series compensation equipment |
-
2016
- 2016-12-22 CN CN201611200416.3A patent/CN108233342A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002247760A (en) * | 2001-02-15 | 2002-08-30 | Toshiba Corp | Starting method of serial compensator |
| US20070250217A1 (en) * | 2006-04-25 | 2007-10-25 | Korea Electric Power Corporation | System and method for automatically operating upfc (unified power flow controller) connected to scada (supervisory control and data acquisition) |
| US20140266145A1 (en) * | 2013-03-15 | 2014-09-18 | E. Energy Double Tree Limited | Power flow control apparatus |
| CN104113060A (en) * | 2014-07-23 | 2014-10-22 | 南京南瑞继保电气有限公司 | Convertible static synchronous series compensator |
| CN105652685A (en) * | 2014-11-14 | 2016-06-08 | 国家电网公司 | Function simulation device for dynamic simulation experiments |
| CN105606934A (en) * | 2016-01-14 | 2016-05-25 | 江苏省电力公司电力科学研究院 | Charging starting debugging method for UPFC serial transformer |
| CN205595798U (en) * | 2016-03-14 | 2016-09-21 | 全球能源互联网研究院 | Modified compounding in parallel type unified power flow controller |
| CN106159976A (en) * | 2016-08-16 | 2016-11-23 | 南京南瑞继保电气有限公司 | A kind of series compensation device |
| CN206340964U (en) * | 2016-12-22 | 2017-07-18 | 南京南瑞继保电气有限公司 | A kind of protection device of series compensation equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |