CN105680468B - A kind of fool proof door interlock system in flexible direct current converter station valve Room - Google Patents
A kind of fool proof door interlock system in flexible direct current converter station valve Room Download PDFInfo
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- CN105680468B CN105680468B CN201610233013.2A CN201610233013A CN105680468B CN 105680468 B CN105680468 B CN 105680468B CN 201610233013 A CN201610233013 A CN 201610233013A CN 105680468 B CN105680468 B CN 105680468B
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- interlock
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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Abstract
The present invention relates to a kind of flexible direct current converter station door-locking systems, a kind of especially fool proof door interlock system in flexible direct current converter station valve Room, based on the time of day of current conversion station master control system, only when the master control system of current conversion station confirms that current flexible direct current system is stoppage in transit state, and equipment is uncharged state in the valve Room, door interlock system can further be started, simultaneously, using the judgement of valve Room key taken state and whether opened as valve Room gate, the true state for reflecting valve Room gate, and control whether the electrification that puts into operation from there through current conversion station Control protection system.Advantage is：Provide the time of day at valve Room gate 100%, rather than the upper emulation mode in microcomputer backstage, it is both provided with reversed blocking function per single stepping, it must be operated according to correct electrical equipment operation sequence, and coordinated by electric logic locked loop to realize the anti-misoperation purpose in the valve Room, the erroneous judgement and maloperation that operations staff can really be avoided, to improve the safety and reliability of flexible direct current power transmission system operation.
Description
Technical field
The present invention relates to a kind of flexible direct current converter station door-locking system, a kind of especially flexible direct current converter station valve Room is anti-error
The door interlock system of operation.
Background technology
Flexible DC power transmission is a kind of New DC transmission mode after ac transmission, conventional high-tension direct current transportation,
It is the current best technology of transmission of electricity of controllability highest, adaptability in the world, is provided for intelligent grid performance upgrade a kind of effective
Technological means.It is different from the characteristics of conventional high-tension HVDC Transmission Technology and is that it uses full-control type, semiconductor devices IGBT
Converter valve carries out AC and DC conversion, can carry out the control of active power, reactive power, be wanted without special to the AC system at both ends
It asks.
Arranged in the valve Room of flexible direct current converter station upper and lower bridge arm IGBT converter valves valve tower for rectification and inversion and
The electrical equipment of the current conversion stations core such as grounding switch, according to flexible DC power transmission engineering technology feature, flexible direct current converter station
The all landing installations of IGBT converter valve valve towers, it is contemplated that Safety Net Distance Issue when electrical equipment charging operation and high-voltage electrical apparatus
The importance of equipment, when the normal operation of the valve Room valve Room be cannot into all should be at closed state when people, valve Room gate requirement operation,
To ensure the reliability service of electrical equipment in the valve Room；Therefore it effectively prevent the correlation that operations staff is strayed into the maloperation of the valve Room anti-error
Measure, it is most important to the safety of flexible direct current converter station operation, stability and reliability.
In regular alternating current substation, situations such as operations staff is strayed into interval, maloperation in order to prevent it is caused it is pernicious after
Fruit, common measure are to take microcomputer anti-misoperation system and mating micro_computer five_proof lockset, at present.The microcomputer of AC Substation is anti-
Error system and mating micro_computer five_proof lockset are that operating maintenance personnel is prevented to be strayed into this kind of accident such as interval, maloperation and take one
Kind active measures, it is the switching manipulation realized in the expert software system-based on transformer station's master control room computer monitoring backstage
Anti-error requirement is a kind of anti-misoperation being realized on microcomputer, virtual；In addition, the micro_computer five_proof lock is according to acquisition
Signal determines the operation of next step, and these signals come from microcomputer lockset, and what is directly reacted is the state of lockset, without
It is the state of 100% equipment.Exactly five anti-lockset of this common computer used by the gate of the IGBT converter valves Room, due to its according to
According to be incomplete equipment running status, be just not enough to effectively prevent the operating maintenance personnel of current conversion station to be strayed into the valve Room, accidentally grasp
Make, lead to that human safety issues may occur and further results in the serious consequences such as flexible direct current system stoppage in transit.
Invention content
It is an object of the invention to shortcoming according to prior art, operations staff can be effectively prevent by providing one kind
Be strayed into the IGBT converter valves Room, maloperation the fool proof door interlock system in the flexible direct current converter station valve Room.
Purpose of the present invention is realized by following approach：
A kind of fool proof door interlock system in flexible direct current converter station valve Room, is characterized by, including form as follows：
Current conversion station Control protection system controls and protects entire current conversion station system, provides whether valve Room gate allows to beat
The electric logic locking contact BS opened；
Door interlock, including the first door interlock and the second door interlock, the first door interlock include pipe
Key, the first gate interlock and the first auxiliary contact Y1 with the first gate interlock mechanical linkage are managed, management key is held by special messenger
Have；Second door interlock includes valve Room key, the second gate interlock, the second auxiliary contact with the second gate interlock mechanical linkage
Y2 and the operation button to link with the first auxiliary contact Y1, which is connected with a logic switch HA, in addition, the valve Room
Key is planted and is locked on the second gate interlock；
Electric logic locked loop, include electric logic locking contact BS, the first auxiliary contact Y1 sequentially concatenated and
Logic switch HA, electric logic locked loop access the electric power loop of the second gate interlock, and the second auxiliary contact Y2 cut-in valves Room is big
The signal of door state backfeed loop, the valve Room gate feedback of status circuit is sent to current conversion station Control protection system；The electricity
Gas contact BS, the first auxiliary contact Y1, the second auxiliary contact Y2 and logic switch HA are normal opened contact；
When needing to open valve hall, first whether true by current conversion station Control protection system confirmation system shutdown state,
Whether electrical equipment is not charged, after the two confirms, sends out instruction by current conversion station Control protection system, electric logic is latched contact
BS is closed；
Electric logic is latched after contact BS is closed, and the first gate interlock is opened using management key, at this time with first couplet on the door
The the first auxiliary contact Y1 for locking mechanical linkage is closed；After first auxiliary contact Y1 is closed, with first auxiliary contact Y1 linkages
Operation button is in operable state, operates the operation button, and the logic switch HA being connect with the operation button is closed；
So far, after electric logic locked loop is connected, the electric power loop of the second gate interlock is connected therewith, is plugged on second
Valve Room key in interlocking is ejected, and in the state that can be taken, operating personnel, which can take out valve Room key and open, is located at the valve Room
Door lock on gate；When the valve Room, key takes from the second gate interlock, the second auxiliary contact Y2 with the second gate interlock mechanical linkage
It is closed, connects valve Room gate feedback of status circuit, by the valve Room gate feedback of status circuit by the letter of " valve Room gate is opened "
Number it is sent to current conversion station Control protection system, flexible direct current system is latched by the programmed logic of current conversion station Control protection system,
System is forbidden to put into operation electrification.
The present invention main points and have technical effect that：
The present invention by door interlock system based on the time of day of current conversion station master control system, only when the master control of current conversion station
System confirms that current flexible direct current system is stoppage in transit state, and equipment is uncharged state in the valve Room, can further be started
Door interlock system, meanwhile, using the judgement of valve Room key taken state and whether opened as valve Room gate, really reflect the valve Room
The state at gate, and control whether the electrification that puts into operation from there through current conversion station Control protection system.The fool proof couplet on the door
Lock system powers up gas logic blocking circuit to realize that fool proof purpose, mechanical interlocking technology will be set using mechanical interlocking technology
Standby anti-misoperation sequence carries out secure mechanical interlocking solidification, passes through the valve Room（Second）The valve Room key circulation of door interlock comes real
Whether existing fool proof logic flow, valve Room key are released to current conversion station Control protection system and provide valve Room gate 100%
Time of day, rather than the upper emulation mode in microcomputer backstage, reversed blocking function, safeguard work people are both provided with per single stepping
Member must be operated according to correct electrical equipment operation sequence, and by allowing the electric logic of operation to close with valve Room gate
Lock loop coordinates to realize the anti-misoperation purpose in the valve Room.The erroneous judgement of operations staff can be really avoided in this way and is accidentally grasped
Make, to improve the safety and reliability of flexible direct current power transmission system operation.
Description of the drawings
Fig. 1 is that the system logic of the fool proof door interlock system in the flexible direct current converter station valve of the present invention Room is illustrated
Figure.
The present invention is described further with reference to embodiment.
Specific implementation mode
Most preferred embodiment：
With reference to attached drawing 1, a kind of fool proof door interlock system in flexible direct current converter station valve Room, including form as follows：
Current conversion station Control protection system controls and protects entire current conversion station system, provides whether valve Room gate allows to beat
The electric logic locking contact BS opened；
Door interlock, including the first door interlock and the second door interlock, the first door interlock include pipe
Manage key, the first gate interlock and the first auxiliary contact Y1 with the first gate interlock mechanical linkage；Second door interlock is
Valve hoistway door interlock comprising have valve Room key, the second gate interlock, the second auxiliary contact with the second gate interlock mechanical linkage
Y2 and the operation button to link with the first auxiliary contact Y1, which is connected with a logic switch HA, in addition, the valve Room
Key has two sets, is plugged on the second gate interlock in corresponding two jacks；
Electric logic locked loop, include electric logic locking contact BS, the first auxiliary contact Y1 sequentially concatenated and
Logic switch HA, electric logic locked loop access the electric power loop of the second gate interlock, and the second auxiliary contact Y2 cut-in valves Room is big
The signal of door state backfeed loop, the valve Room gate feedback of status circuit is sent to current conversion station Control protection system；The electricity
Gas contact BS, the first auxiliary contact Y1, the second auxiliary contact Y2 and logic switch HA are normal opened contact.
The management key is managed collectively by the current conversion station head of a station, and two sleeving valve Room keys correspond to two of the valve Room greatly respectively
, it plants and is locked on the second gate interlock under normality, being unsatisfactory for anti-misoperation locking logical condition can not unplug.As operation people
When member needs opening valve Room gate to debug, overhauled or safeguard electrical equipment in the valve Room：
1）First feelings are charged for system shutdown state, electrical equipment by the indoor Control protection system backstage of current conversion station master control
After the integrated logics such as condition judge, master control room operator, which issues, allows valve Room gate to open order, valve landing interlock system
Electric logic locked loop Fig. 1 in allow the valve Room to open electric logic be latched contact BS and conjugated into normally closed shape by normally open
State；
2）The first gate interlock is opened by managing key in head of a station's hand, then the mechanical linkage auxiliary contact Y1 of the first gate interlock
It conjugating into normally off by normally open, the operation button with first auxiliary contact Y1 linkages is in operable state at this time,
The operation button on the second door interlock is operated, the logic switch HA being connect with the operation button is closed, and will connect permission
The electric logic locked loop at valve Room gate is opened, the electric power loop of the second gate interlock is connected therewith, is plugged on the second gate interlock
On valve Room key be ejected, two valve Room keys can be taken off at this time, and operations staff can open two gates in the valve Room；
3）After two valve Room keys of the second gate interlock take out, the mechanical linkage auxiliary contact Y2 of the second gate interlock is also corresponding
It is conjugated at normally off, to connect valve Room gate feedback of status circuit, by the shape of " valve Room gate is opened " by normally open
State signal is fed directly to the backstage operator on duty of current conversion station Control protection system, passes through the program of current conversion station Control protection system
Logic blocking flexible direct current system forbids system to put into operation electrification；
4）Valve Room key opens the valve Room greatly behind the door, and valve Room key will be locked on the gate of the valve Room, unless operations staff grasps
It needs to close valve Room gate after work, which could extract, in this way, the above-mentioned locking for having setting reversed per single stepping
Function, safety accident problem caused by avoiding maloperation；Meanwhile by the circulation and locking of valve Room key, valve is really fed back
The open and-shut mode at Room gate has ensured that the valve Room can not unlock, can not put into operation and band when that is, main lock does not reset when valve Room gate
Electricity.
5）When valve Room gate, main lock resets, and after valve Room key is pulled out and is reset on the second gate interlock, electric logic closes
All contacts on lock loop are returned to normally open by closed state, while the second auxiliary contact Y2 also returns to normally opened shape
The signal of " locking of valve Room gate " is sent to current conversion station Control protection system by valve Room gate feedback of status circuit, passed through by state
The Program reset of current conversion station Control protection system, into regular operating state.
6）The fool proof door interlock equipment in the flexible direct current converter station valve Room is mounted between the gates Liang Ge of the valve Room
On wall, consideration facilitates operations staff to operate, and door interlock case can hang wall installation at 1.5 meters of valve Room exterior wall.
The main points and innovative point of the present invention are：
1）By management and two sets of valve Room door interlock and mating key and lockset, mechanical linkage lock-out techniques and electrically
Logic blocking circuit constitutes flexible direct current converter station valve landing interlock system, and system designs simple and reliable, equipment installation operation
And operation and maintenance are convenient.
2）The design of flexible direct current converter station valve landing interlock system is using mechanical interlocking technology power-up gas logic blocking circuit
To realize that fool proof purpose is all set that is, by equipment anti-misoperation sequence progress secure mechanical interlocking solidification per single stepping
It is equipped with reversed blocking function, safeguard work personnel must operate according to correct electrical equipment operation sequence, and pass through
The electric interlocking loop of operation is allowed to coordinate with valve Room gate to realize the anti-misoperation purpose in the valve Room.
3）The design of flexible direct current converter station valve landing interlock system is circulated come real by the key of valve hoistway door interlock
Existing fool proof logic flow, wherein lockset is direct lock-up valve Room gate, and whether key is released in current conversion station master control room
The Control protection system of operator on duty provides the time of day at valve Room gate 100%, rather than emulation mode is gone up on microcomputer backstage,
When i.e. main lock does not reset when valve Room gate, ensures that the valve Room can not unlock, can not put into operation and charge, just really avoided transporting in this way
The erroneous judgement and maloperation of row operator on duty.
The not described part of the present invention is same as the prior art.
Claims (1)
1. a kind of fool proof door interlock system in flexible direct current converter station valve Room, which is characterized in that including forming as follows：
Current conversion station Control protection system, control and protect entire current conversion station system, provide valve Room gate whether allow it is open
Electric logic is latched contact BS；
Door interlock, including the first door interlock and the second door interlock, the first door interlock include management key
Spoon, the first gate interlock and the first auxiliary contact Y1 with the first gate interlock mechanical linkage, management key are held by special messenger；The
Two door interlocks include valve Room key, the second gate interlock, with the second auxiliary contact Y2 of the second gate interlock mechanical linkage, with
And the operation button with the first auxiliary contact Y1 linkages, which is connected with a logic switch HA, in addition, valve Room key is inserted
It sets and is locked on the second gate interlock；
Electric logic locked loop includes electric logic locking contact BS, the first auxiliary contact Y1 and the logic sequentially concatenated
Switch HA, electric logic locked loop access the electric power loop of the second gate interlock, the second big gate-shaped in the auxiliary contact Y2 cut-in valves Room
The signal of state backfeed loop, the valve Room gate feedback of status circuit is sent to current conversion station Control protection system；Described electrically patrols
It is normal opened contact to collect locking contact BS, the first auxiliary contact Y1, the second auxiliary contact Y2 and logic switch HA；
When needing to open valve hall, first confirm whether system shutdown state is true, electrically by current conversion station Control protection system
Whether equipment is not charged, and after the two confirms, instruction is sent out by current conversion station Control protection system, and electric logic is latched contact at this time
BS is closed；
Electric logic is latched after contact BS is closed, and the first gate interlock is opened using management key, at this time with first couplet on the door lock machine
First auxiliary contact Y1 of tool linkage is closed；After first auxiliary contact Y1 is closed, the operation with first auxiliary contact Y1 linkages
Button is in operable state, operates the operation button, and the logic switch HA being connect with the operation button is closed；
So far, after electric logic locked loop is connected, the electric power loop of the second gate interlock is connected therewith, is plugged on the second gate interlock
On valve Room key be ejected, in the state that can be taken, operating personnel, which can take out valve Room key and open, is located at valve Room gate
On door lock；When the valve Room, key takes from the second gate interlock, it is closed with the second auxiliary contact Y2 of the second gate interlock mechanical linkage,
Valve Room gate feedback of status circuit is connected, is sent the signal of " valve Room gate is opened " by the valve Room gate feedback of status circuit
To current conversion station Control protection system, flexible direct current system is latched by the programmed logic of current conversion station Control protection system, forbid be
System puts into operation electrification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233013.2A CN105680468B (en) | 2016-04-15 | 2016-04-15 | A kind of fool proof door interlock system in flexible direct current converter station valve Room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610233013.2A CN105680468B (en) | 2016-04-15 | 2016-04-15 | A kind of fool proof door interlock system in flexible direct current converter station valve Room |
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| Publication Number | Publication Date |
|---|---|
| CN105680468A CN105680468A (en) | 2016-06-15 |
| CN105680468B true CN105680468B (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610233013.2A Active CN105680468B (en) | 2016-04-15 | 2016-04-15 | A kind of fool proof door interlock system in flexible direct current converter station valve Room |
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| CN (1) | CN105680468B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108574279B (en) * | 2018-06-04 | 2024-01-19 | 河南森源电气股份有限公司 | Double-bus switching misoperation prevention control device and double-bus power supply system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092232A (en) * | 2014-06-26 | 2014-10-08 | 国家电网公司 | Automatic locking method for battery replacement station of flexible direct-current transmission system |
| CN104794844A (en) * | 2015-04-23 | 2015-07-22 | 许继集团有限公司 | Converter station valve hall fire signal extension device |
-
2016
- 2016-04-15 CN CN201610233013.2A patent/CN105680468B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092232A (en) * | 2014-06-26 | 2014-10-08 | 国家电网公司 | Automatic locking method for battery replacement station of flexible direct-current transmission system |
| CN104794844A (en) * | 2015-04-23 | 2015-07-22 | 许继集团有限公司 | Converter station valve hall fire signal extension device |
Non-Patent Citations (1)
| Title |
|---|
| 《柔性直流换流站顺序控制系统》;陈晓捷等;《能源与环境》;20140830;第16-19页 * |
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| CN105680468A (en) | 2016-06-15 |
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Address after: 350003 Gulou District, Fujian, Fuzhou No. 54 Road, No. 257 Applicant after: State Grid Fujian Electric Power Co., Ltd. Applicant after: China Electric Power Construction Group Fujian electric survey and Design Institute Co., Ltd. Applicant after: Nanrui Relay Protection Electricity Co., Ltd., Nanjing Address before: 350003 Gulou District, Fujian, Fuzhou No. 54 Road, No. 257 Applicant before: State Grid Fujian Electric Power Co., Ltd. Applicant before: Fujian Electric Power Survey and Design Institute Applicant before: Nanrui Relay Protection Electricity Co., Ltd., Nanjing |
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