CN107204607B - A kind of guard method of static synchronous series compensator - Google Patents
A kind of guard method of static synchronous series compensator Download PDFInfo
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- CN107204607B CN107204607B CN201610158658.4A CN201610158658A CN107204607B CN 107204607 B CN107204607 B CN 107204607B CN 201610158658 A CN201610158658 A CN 201610158658A CN 107204607 B CN107204607 B CN 107204607B
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- 230000004224 protection Effects 0.000 claims abstract description 279
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- 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
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Abstract
The present invention provides a kind of guard method of static synchronous series compensator, which comprises (1) entire SSSC equipment protection is divided into the protection of system side protection zone and valve side protection zone is protected；(2) the relaying configuration scheme of system side protection zone is determined；(3) the relaying configuration scheme of valve side protection zone is determined.This relaying configuration scenario-frame is simple, clear, and in addition to bypass breaker failure protection and converter power transformer non-ionizing energy loss cover configuration by list, remaining protection covers configuration, the high reliablity of protection by pair；This relaying configuration scheme can detect all the case where endangering SSSC equipment and operation generation；This relaying configuration scheme can accomplish protection area overlapping of each protection zone all with adjacent protection circuit, and protection's dead-zone is not present.
Description
Technical field
The present invention relates to Static Synchronous Series to compensate field, in particular to a kind of protection of static synchronous series compensator
Method.
Background technique
With the development of national economy, the demand to electric energy is continued to increase, the requirement to the electrical energy transportation ability of power grid
It is higher and higher, and the laying of new ultra-high-tension power transmission line is limited by environmental impact assessment factor and high cost, does not catch up with electrical energy demands
Increase, causes the problem of having transmission line of electricity burden, electrical energy transportation scarce capacity increasingly prominent.
The latest development achievement and modern control technology of static synchronous series compensator SSSC power application electronic technology are led to
Flexible to the parameter of AC transmission system, fast and accurate control is crossed, the reasonable distribution to transmission power may be implemented, is reduced
Power loss increases substantially the conveying capacity of transmission line of electricity and the stability of electric system, reliability, is to realize electric system
Safety, economy, the important means of comprehensively control, for making full use of existing power network resources, realizing that the efficient utilization of electric energy can be sent out
Wave important function.
Currently, there are no individual SSSC devices to put into operation of power networks, the 2 Unified Power Flow controls only to have put into operation in the world
Device (Unified Power Flow Controller, abbreviation UPFC) engineering processed and 1 convertible static compensator
(Convertible Static Compensators, abbreviation CSC) engineering is furnished with the operational mode separately as SSSC.SSSC
Device component is more, and operating condition is complex, during putting into operation of power networks, has various failures or abnormal work
Condition, the external fault that can suffer from the process of running including device (such as failure on external area error, adjacent lines etc.
Bring impact) and equipment inside failure etc. itself that occur.SSSC protects important component of the system as device, is
Ensure that it is safely operated essential important measures.When device breaks down, protection system is rapidly and accurately provided accordingly
Action command keeps device out of service or disconnects from electric system, so that the damage to device itself is reduced to greatest extent,
Reduce the influence powered to power system security.SSSC system protection after being disturbed or breaking down compares GPF (General Protection False
It is more complicated, and need on the basis of control and protection cooperation, it is the more perfect guard method of system configuration.Existing configuration
The unparalleled set configuration of scheme, the reliability of protection are lower；There are protection's dead-zones, can not provide perfect protection.
Summary of the invention
To overcome above-mentioned the deficiencies in the prior art, the present invention provides a kind of guard method of static synchronous series compensator,
For the characteristic of SSSC, research and proposition can be suitable for the relaying configuration method of SSSC, make SSSC equipment internal component both
It can endanger from failure bring inside and out equipment, and the development of energy limiting device internal fault, and subtract to the maximum extent
The influence that low device interior failure powers to transmission line safety.
Realize solution used by above-mentioned purpose are as follows:
A kind of guard method of static synchronous series compensator, which comprises
(1) entire SSSC equipment protection is divided into the protection of system side protection zone and valve side protection zone is protected；
(2) the relaying configuration scheme of system side protection zone is determined；
(3) the relaying configuration scheme of valve side protection zone is determined.
Preferably, the relaying configuration scheme of the system side protection zone includes: converter power transformer protection, system side lead guarantor
Shield and bypass breaker failure protection.
Further, the converter power transformer protection includes: main protection, back-up protection and non-electric quantity protection；
The main protection uses differential protection, and protection act is in the inlet wire and wire-outgoing breaker and electronics of the two sides tripping SSSC
Converter valve is bypassed, the main protection system side protective current is derived from the current transformer of converter power transformer primary side, valve side protection electricity
Stream is derived from the current transformer on converter power transformer pair side；
The back-up protection includes: system side back-up protection and the back-up protection of valve side；
The non-electric quantity protection act is in the inlet wire and wire-outgoing breaker and electronic bypass converter valve of the two sides tripping SSSC.
Further, the system side back-up protection uses overcurrent protection, and protective current is derived from converter power transformer primary side
Current transformer, protection act start bypass breaker failure protection in closed system side bypass breaker；
Valve side back-up protection uses overcurrent protection, and protective current is derived from the current transformer on converter power transformer pair side,
Protection act is closed at system side bypass breaker and starts bypass breaker failure protection in electronic bypass converter valve.
Further, the system side pilot protection is using differential protection or differential protection and overcurrent protection, protection act
Inlet wire and wire-outgoing breaker in the two sides tripping SSSC, while electronic bypass converter valve, the protection electricity of the system side pilot protection
Stream is taken respectively from SSSC inlet wire current mutual inductor and outlet current transformer.
Further, the bypass breaker failure protection, by conjunction system side bypass breaker signal enabling, if system side
Bypass breaker circuit is without stream, then inlet wire and outlet of the bypass breaker failure protection through the two sides tripping SSSC that are delayed are breaking
Device, while blocked line protects reclosing, protective current is derived from the current transformer in system side bypass breaker circuit.
Preferably, the relaying configuration scheme of valve side protection zone includes: valve side pilot protection, bypass protection, valve area guarantor
Shield, the protection of converter valve valve body and converter valve auxiliary protection.
Further, valve side pilot protection uses differential protection, and protection act is led simultaneously in electronic bypass converter valve
Logical bypass thyristor is simultaneously closed converter power transformer bilateral bypass breaker.
Further, the bypass protection includes: by the way of differential protection and overcurrent protection or using two-period form mistake
The mode of protection is flowed, protection act is in closed system side bypass breaker.
Further, the valve area protection is made of differential protection, overcurrent protection and overvoltage protection, and protection act is in electronics
Converter valve is bypassed, bypass thyristor and closure valve side bypass breaker are simultaneously turned on.
Further, converter valve valve body protection is made of overcurrent protection and DC over-voltage protection, and protection act is in changing
Valve module is flowed, each converter valve module configures a set of valve body protection.
Further, the converter valve auxiliary protection is to change of current valve body and its auxiliary system because of failure and misoperation shape
Signal caused by state is made a response, and deferred action simultaneously turns on bypass thyristor and closed system in electronic bypass converter valve
Side and valve side bypass breaker issue corresponding alarm.
Further, the system side pilot protection is only disconnected to the route inlet wire in the transmission line of electricity for being equipped with SSSC equipment
Road device between SSSC leading-out terminal lead and equipment protection is provided, SSSC leading-out terminal is to defeated between the wire-outgoing breaker of route opposite side
The protection of electric line is completed by route protection；
The protective current of route protection is derived from the outlet SSSC TA2；Voltage is derived from the outlet SSSC TV2, protection act in
The breaker of route two sides.
Compared with prior art, the invention has the following advantages:
1, this relaying configuration scenario-frame is simple, clear, removes bypass breaker failure protection and converter power transformer non electrical quantity
Protection is outer by single set configuration, remaining protection can be configured by double sets, the high reliablity of protection；
2, this relaying configuration scheme can detect all the case where endangering SSSC equipment and operation generation；
3, this relaying configuration scheme can accomplish protection area overlapping of each protection zone all with adjacent protection circuit, and there is no protect
Protect dead zone；
4, this relaying configuration scheme can be while ensuring that converter valve is against damages, by faulty equipment within the shortest time
Or faulty section excision, or keep faulty equipment out of service rapidly, the influence to transmission line of electricity is reduced to minimum；
5, under the premise of meeting SSSC protection requirement, the protection minimum number of configuration needs to match this relaying configuration scheme
The minimum number for covering the mutual inductor of installation, advantageously reduces the cost of SSSC complete set of equipments, while can also reduce secondary cable
Quantity；
6, this relaying configuration scheme can keep the original protection system of the route when SSSC accesses the transmission line of electricity run
Configuration it is constant, it is only necessary to the electric current of line attachment protection, voltage circuit wiring are given into adjustment, secondary connection changes quantity
At least.
Detailed description of the invention
Fig. 1: the typical main circuit structure of static synchronous series compensator (SSSC) provided by the invention；
Fig. 2: the relaying configuration figure of static synchronous series compensator (SSSC) provided by the invention；
Fig. 3: static synchronous series compensator (SSSC) the protection implement conceptual scheme provided by the invention.
Specific embodiment
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Static synchronous series compensator (Static Synchronous Series Compensator, abbreviation SSSC) is
A kind of state type synchronization reactive-load compensation equipment based on turn-off device, without external power supply, typical main circuit structure is such as
Shown in attached drawing 1, mainly by converter power transformer, system side bypass breaker, valve side bypass breaker bypasses thyristor, converter valve
And the composition such as exchange lead.The equipment is series among transmission line of electricity, generates the electricity controllable with line current quadrature in phase, amplitude
The equivalent impedance of its tandem link can be changed by controlling its output voltage in pressure, thus realize the route is conveyed it is active
The regulation of power and reactive power, and can reach power oscillation damping, inhibit the controls such as sub-synchronous oscillation, raising transient stability
Target.SSSC has a characteristic that
1) it can be generated or absorbed by reactive power in the line without the use of any AC capacitor or reactor；
2) controllable compensating voltage can be generated not against line current；
3) itself has anti-interference ability to subsynchronous resonance or other oscillatory occurences；
4) response control instruction is rapid；
5) open-phase operations such as single-pole reclosing are adapted to.
For SSSC primary equipment main circuit structure feature, the guard method according to SSSC can make member inside SSSC equipment
Device can drop to greatest extent from the harm of failure bring, the development of limiting device internal fault inside and out equipment
The requirement such as influence that low device interior failure powers to transmission line safety, present applicant proposes the SSSC for being serially connected with transmission line of electricity
Relaying configuration (method) embodiment is only set shown in dotted line frame in figure for SSSC equipment and its protection as shown in Fig. 3
It sets.
SSSC protects system to be made of the protection of system side protection zone and the protection of valve side protection zone.The protection of system side protection zone
Match: system side pilot protection, converter power transformer protection, bypass breaker failure protection；The protection of valve side protection zone is matched: valve side lead
Protection, bypass protection, the protection of valve area, the protection of converter valve valve body, converter valve auxiliary protection.
System side pilot protection: protection is by double set configurations, according to field device situation, protection can be used differential protection or or
Differential protection and overcurrent protection composition.Differential protection can be poor using stable state ratio differential, differential quick-break, power frequency variation ratio
Modes, the overcurrent protections such as dynamic, zero sequence ratio differential can add composite voltage (negative sequence voltage and voltage between phases), recombination current
Entry conditions such as (negative-sequence current and phase voltages) or direction locking condition.Protect snap action in electronic bypass converter valve, tripping
The incoming breaker of transmission line of electricity two sides, SSSC equipment is out of service.
Since SSSC is the side for being serially connected with transmission line of electricity, although inner lead is shorter, the work in view of the device is special
Point is equivalent to and is concatenating the variable impedance of an amplitude on the line, so that SSSC is in the process for putting into, exiting and running
In can all change the impedance value of whole transmission line of electricity, cause circuit pack defencive function to be affected, cannot correctly act, influence
The safe operation of route.In view of the above problem, by the protection scope of SSSC system side pilot protection by the end of incoming cables SSSC to
SSSC leading-out terminal extends to route incoming breaker and is exported to SSSC leading-out terminal, and the system side that original is derived from the point of incoming cables SSSC TA1 is drawn
Line protection protective current is adjusted to be derived from incoming breaker exit TA01；Simultaneously by the protection scope of route protection by sliver
Road (incoming breaker is exported to the outlet of route opposite side incoming breaker) is adjusted to SSSC leading-out terminal to the open circuit of route opposite side inlet wire
Device outlet, the route protection protective current that original is derived from incoming breaker exit TA01 are adjusted to be derived from the outlet SSSC TA2, former
The route protection voltage for being derived from incoming breaker exit TV01 is adjusted to be derived from the outlet SSSC TV2, and route protection exports not
Become, protection is still acted in the incoming breaker of tripping route two sides.It in this way will be by SSSC system side pilot protection and route protection
The common protection completed to whole route, while realizing whole route protection without dead zone, and solves SSSC and puts into, moves back
Out and influence to route protection during operation, while this is also to protect system call interception to existing equipment after access SSSC
The smallest scheme.
Converter power transformer protection: the double set main protections, the back-up protection of duplexed system side, the back-up protection of double sleeve valve side of configuration, with
And a set of transformer non-electric quantity protection.If system side back-up protection its protection when phase-to phase fault occurs for converter power transformer pair side
Sensitivity when meeting the requirement of associated specifications, configuration valve side back-up protection can be cancelled.
Main protection uses differential protection, and differential protection can use stable state ratio differential, differential quick-break, power frequency variation ratio
The modes such as differential, the zero sequence ratio differential of example, protect snap action in the inlet wire of electronic bypass converter valve, tripping transmission line of electricity two sides
Breaker, SSSC equipment is out of service, and to ensure that the safety of converter valve can also simultaneously turn on bypass thyristor, the closure change of current becomes
The bypass breaker of depressor two sides.The differential protection electric current of main protection A is taken respectively from the Current Mutual Inductance on the former and deputy side of converter power transformer
Device TA4 and TA6, the differential protection electric current of main protection B be taken respectively from the former and deputy side of converter power transformer current transformer TA5 and
TA7。
System side back-up protection uses overcurrent protection, and the visual field device situation of overcurrent protection adds composite voltage (negative phase-sequence
Voltage and voltage between phases), entry conditions or the direction locking condition such as recombination current (negative-sequence current and phase voltage).Protection act warp
Timing closing system side bypass breaker, and start bypass breaker failure protection, to ensure that the safety of converter valve can also be simultaneously
Electronic bypass converter valve, conducting bypass thyristor, closure valve side bypass breaker.The protective current of protection A is derived from change of current transformation
The current transformer TA4 of device primary side point of incoming cables, protects the protective current of B to be derived from the Current Mutual Inductance of converter power transformer primary side outlet
Device TA5.
Overcurrent protection can be used in the back-up protection of valve side, and the visual field device situation of overcurrent protection adds composite voltage (negative phase-sequence
Voltage and voltage between phases), entry conditions or the direction locking condition such as recombination current (negative-sequence current and phase voltage).Protection act warp
Deferred action is closed at system side bypass breaker in electronic bypass converter valve, and starts bypass breaker failure protection, is
Ensure that the safety of converter valve can also simultaneously turn on bypass thyristor, closure valve side bypass breaker.The protective current of protection A is derived from
The casing current transformer TA6 on converter power transformer pair side, protecting the protective current of B to be derived from converter power transformer pair side, to go out line current mutual
Sensor TA7.
Non-electric quantity is protected in the non-electric quantity signal for receiving converter power transformer, instantaneously or through deferred action by electronics
Road converter valve, while the incoming breaker of tripping transmission line of electricity two sides, SSSC equipment is out of service, and issue corresponding alarm
Signal.To ensure that the safety of converter valve can also simultaneously turn on bypass thyristor, it is closed the bypass breaker of converter power transformer two sides.
If converter power transformer is capacity, lesser dry type becomes, and when no non-electric charge quantity signalling is sent out, can cancel configuration non-electric quantity protection.
Bypass breaker failure protection: protection is by single set configuration, the conjunction system side bypass breaker signal issued by protection
Starting, if system side bypass breaker is refused to close, incoming breaker of the failure protection through the tripping transmission line of electricity two sides that are delayed, simultaneously
Blocked line protects reclosing.Protective current is derived from the current transformer TA3 in system side bypass breaker circuit.
Valve side pilot protection: protection uses differential protection by double set configurations, protection, and differential protection can use stable state ratio
The modes such as differential, differential quick-break, power frequency variation ratio differential, zero sequence ratio differential, protection snap action are changed in electronic bypass
Valve is flowed, bypass thyristor is simultaneously turned on and is closed converter power transformer bilateral bypass breaker.Protect the differential protection electric current difference of A
It is derived from current transformer TA6, the valve area inlet wire current mutual inductor TA9 and bypass inlet wire mutual inductor TA8 on converter power transformer pair side, master
The differential protection electric current of protection B is taken respectively from the current transformer TA7 on converter power transformer pair side, valve area inlet wire current mutual inductor
TA9 and bypass inlet wire mutual inductor TA8.
Bypass protection: protection is by double set configurations, and there are two types of selections for protection scheme: 1. use differential protection and overcurrent protection,
2. using two-period form overcurrent protection, I sections of overcurrent is only opened when bypass thyristor is in the conductive state in short-term, and II sections of overcurrent in valve
Side bypass breaker is in gate-dividing state and bypass thyristor is in open when nonconducting state.Consider land occupation and reduce equipment at
Originally can preference scheme 2, but bypass thyristor valve is required to can provide the on state signal of valve.Protection is through deferred action in closing
Close system side bypass breaker.The protective currents of 2 sets of protections be taken respectively from valve side bypass loop into and out of current transformer at line
The different secondary winding of TA8 and TA11.
The protection of valve area: protection is made of by double set configurations, protection differential protection, overcurrent protection and overvoltage protection.Differential guarantor
Shield can be using modes such as stable state ratio differential, differential quick-break, power frequency variation ratio differential, zero sequence ratio differentials.Overcurrent is protected
It protects visual field device situation and adds composite voltage (negative sequence voltage and voltage between phases), recombination current (negative-sequence current and phase voltage)
Etc. entry conditions or direction locking condition.It is brilliant to simultaneously turn on bypass instantaneously or through deferred action in electronic bypass converter valve for protection
Brake tube and closure valve side bypass breaker can also be closed at system side bypass breaker for the consideration to converter valve safety.
The protective current of 2 sets of protections is taken respectively from the different secondary into and out of current transformer TA9 and TA10 at line in converter valve circuit
Winding, protection voltage are derived from the voltage transformer TV3 of converter valve circuit point of incoming cables.
The protection of converter valve valve body: protection is made of overcurrent protection and DC over-voltage protection, each converter valve module configuration one
Cover valve body protection, it is contemplated that protection response speed suggestion is embedded on valve module.The protection snap action is placed in by module " electricity
Son bypass " state.
Converter valve auxiliary protection: protection after receiving the fault-signal of converter valve valve body and its auxiliary system, it is instantaneous or
Through deferred action in electronic bypass converter valve, bypass thyristor, closed system side and valve side bypass breaker are simultaneously turned on, concurrently
Corresponding alarm out.The function of such as protection is completed by the control system of SSSC equipment, can be cancelled and be configured the protection.
Finally it should be noted that: above embodiments are merely to illustrate the technical solution of the application rather than to its protection scopes
Limitation, although the application is described in detail referring to above-described embodiment, those of ordinary skill in the art should
Understand: those skilled in the art read the specific embodiment of application can still be carried out after the application various changes, modification or
Person's equivalent replacement, but these changes, modification or equivalent replacement, are applying within pending claims.
Claims (11)
1. a kind of guard method of static synchronous series compensator, which is characterized in that the described method includes:
(1) static synchronous series compensator SSSC equipment protection is divided into the protection of system side protection zone and valve side protection zone is protected；
(2) the relaying configuration scheme of system side protection zone is determined；
(3) the relaying configuration scheme of valve side protection zone is determined；
The relaying configuration scheme of the system side protection zone includes: that converter power transformer protection, system side pilot protection and bypass are disconnected
Road device failure protection；
For the system side pilot protection using differential protection or differential protection and overcurrent protection, protection act is static same in tripping
The inlet wire and wire-outgoing breaker of the two sides series compensator SSSC are walked, is moved at the same time in electronic bypass converter valve, the system side lead
The protective current of protection is taken respectively from static synchronous series compensator SSSC inlet wire current mutual inductor and outlet current transformer.
2. guard method as described in claim 1, which is characterized in that the converter power transformer protection includes: main protection, standby
Protection and non-electric quantity protection；
The main protection use differential protection, protection act in the two sides tripping static synchronous series compensator SSSC inlet wire and go out
Line breaker and electronic bypass converter valve, the main protection system side protective current are derived from the Current Mutual Inductance of converter power transformer primary side
Device, valve side protective current are derived from the current transformer on converter power transformer pair side；
The back-up protection includes: system side back-up protection and the back-up protection of valve side；
The non-electric quantity protection act in the two sides tripping static synchronous series compensator SSSC inlet wire and wire-outgoing breaker and
Electronic bypass converter valve.
3. guard method as claimed in claim 2, which is characterized in that the system side back-up protection uses overcurrent protection, protects
Shield electric current is derived from the current transformer of converter power transformer primary side, and protection act starts side in closed system side bypass breaker
Circuit breaker failure protection；
Valve side back-up protection uses overcurrent protection, and protective current is derived from the current transformer on converter power transformer pair side, protects
It acts in electronic bypass converter valve, be closed at system side bypass breaker and start bypass breaker failure protection.
4. guard method as described in claim 1, which is characterized in that the bypass breaker failure protection, by closed system
Side bypass breaker signal enabling, if system side bypass breaker circuit is without stream, the bypass breaker failure protection is through prolonging
When the two sides tripping static synchronous series compensator SSSC inlet wire and wire-outgoing breaker, while blocked line protect reclosing, protect
Shield electric current is derived from the current transformer in system side bypass breaker circuit.
5. guard method as described in claim 1, which is characterized in that the relaying configuration scheme of valve side protection zone includes:
Valve side pilot protection, bypass protection, the protection of valve area, the protection of converter valve valve body and converter valve auxiliary protection.
6. guard method as claimed in claim 5, which is characterized in that valve side pilot protection uses differential protection, protection
It acts in electronic bypass converter valve, simultaneously turn on bypass thyristor and is closed converter power transformer bilateral bypass breaker.
7. guard method as claimed in claim 5, which is characterized in that the bypass protection includes: using differential protection and mistake
It flows the mode of protection or by the way of two-period form overcurrent protection, protection act is in closed system side bypass breaker.
8. guard method as claimed in claim 5, which is characterized in that valve area protection by differential protection, overcurrent protection and
Overvoltage protection composition, protection act simultaneously turn on bypass thyristor and closure valve side bypass breaker in electronic bypass converter valve.
9. guard method as claimed in claim 5, which is characterized in that the converter valve valve body protection is by overcurrent protection and direct current
Overvoltage protection composition, for protection act in converter valve module, each converter valve module configures a set of valve body protection.
10. guard method as claimed in claim 5, which is characterized in that the converter valve auxiliary protection to change of current valve body and
Its auxiliary system because signal caused by failure and abnormal operating condition is made a response, deferred action in electronic bypass converter valve,
Bypass thyristor and closed system side and valve side bypass breaker are simultaneously turned on, corresponding alarm is issued.
11. guard method as described in claim 1, which is characterized in that the system side pilot protection is only static to being equipped with
Route incoming breaker in the transmission line of electricity of synchronous series compensator SSSC equipment goes out to static synchronous series compensator SSSC
Lead and equipment between line end provide protection, static synchronous series compensator SSSC leading-out terminal to route opposite side wire-outgoing breaker
Between the protection of transmission line of electricity completed by route protection；
The protective current of route protection is derived from the outlet static synchronous series compensator SSSC current transformer TA2；Voltage is derived from
The outlet static synchronous series compensator SSSC voltage transformer TV2, protection act is in the breaker of route two sides.
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| CN108321775A (en) * | 2018-01-30 | 2018-07-24 | 国网上海市电力公司 | The mating protection method of UPFC devices and electric system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882774A (en) * | 2010-03-30 | 2010-11-10 | 南方电网技术研究中心 | DC de-icing device without special rectifier transformer and protection method thereof |
| CN201829904U (en) * | 2010-03-30 | 2011-05-11 | 南方电网技术研究中心 | Direct current ice thawing device with special rectifier transformer |
| CN104092224A (en) * | 2014-07-04 | 2014-10-08 | 南京南瑞继保电气有限公司 | Convertible static synchronous compensator |
| CN104767191A (en) * | 2015-04-09 | 2015-07-08 | 国家电网公司 | Converter grounding system |
-
2016
- 2016-03-18 CN CN201610158658.4A patent/CN107204607B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882774A (en) * | 2010-03-30 | 2010-11-10 | 南方电网技术研究中心 | DC de-icing device without special rectifier transformer and protection method thereof |
| CN201829904U (en) * | 2010-03-30 | 2011-05-11 | 南方电网技术研究中心 | Direct current ice thawing device with special rectifier transformer |
| CN104092224A (en) * | 2014-07-04 | 2014-10-08 | 南京南瑞继保电气有限公司 | Convertible static synchronous compensator |
| CN104767191A (en) * | 2015-04-09 | 2015-07-08 | 国家电网公司 | Converter grounding system |
Non-Patent Citations (1)
| Title |
|---|
| 带静止无功补偿器功能的直流融冰装置过电压保护及绝缘配合;吴传奇等;《高电压技术》;20130531;第39卷(第5期);第1258-1264页 * |
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