CN105281234A - Direct current power transmission engineering valve group overhauling automation isolation realization method - Google Patents
Direct current power transmission engineering valve group overhauling automation isolation realization method Download PDFInfo
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- CN105281234A CN105281234A CN201410329262.2A CN201410329262A CN105281234A CN 105281234 A CN105281234 A CN 105281234A CN 201410329262 A CN201410329262 A CN 201410329262A CN 105281234 A CN105281234 A CN 105281234A
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- valve group
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- overhauling
- maintenance
- isolation
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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Abstract
The invention discloses a high voltage/ extra-high voltage direct current power transmission engineering valve group overhauling automation isolation realization method. The method comprises the following steps of setting a valve group overhauling automation isolation starting button and acquiring a valve group overhauling signal, and transmitting the signal to an associated direct current control protection host; according to an overhauling-signal associated direct current control protection host, carrying out electrical isolation on an automatic operation overhauling valve group and an operation valve group; according to an overhauling-signal investment operation direct current control protection host, setting a collected overhauling valve group equipment state signal to be a set value; according to the overhauling-signal investment operation direct current control protection host, shielding the monitoring to the overhauling valve group equipment; according to the overhauling signal, forbidding a control protection host of the overhauling valve group to operate equipment used for electrical isolation; according to the overhauling signal, forbidding the investment operation direct current control protection host to operate the overhauling valve group equipment. Through one-key starting, safe isolation of the overhauling equipment is automatically completed and safe operation of direct current equipment is guaranteed.
Description
Technical field
The invention belongs to high pressure/extra-high voltage direct-current transmission control field, particularly a kind of DC transmission engineering valve group maintenance automatism isolation implementation method.
Background technology
Along with the first in the world ± 800kV extra-high voltage direct-current transmission engineering drops into commencement of commercial operation in China; extra-high voltage direct-current starts flourish; the draw bail of two 12 flutter valve group series connection; make the electrical wiring mode of direct current system and DC control and protection system structure more complicated; also the more multi-operating condition that made direct current system have, the flexibility of operation also strengthens greatly.The complexity of system configuration, the various of operational mode and flexible while also bring high voltage DC engineering valve group maintenance complexity.
During DC engineering operation maintenance, often can carry out repair and maintenance work according to actual requirement to one or more valve group.According to maintenance safety requirement, when overhauling 12 flutter valve groups or safeguard, this service valve group and other operational outfit high-voltage electrical apparatus must be isolated, and during repair and maintenance, forbid that repair apparatus is connected with operational outfit high-voltage electrical apparatus.
Extra-high voltage direct-current Control protection system structure is more complicated; primarily of compositions such as multiple valve group main control system, multiple valve unit protection main frame, multiple poles main control system and multiple poles protected hosts; being a tightly coupled system, is a typical extra-high voltage direct-current Control protection system structure and communication scheme as shown in Figure 1.Have mutual supervision and running state data to exchange between these main frames, these monitor the operation of each main frame of impact that can be real-time with status data.Between turn(a)round; service valve group equipment state and valve group Control protection operational state of mainframe uncertain, these states can disturb other operational outfits, cause dangerous operation; need to shield, by repair apparatus and operational system decoupling zero these supervision and exchanges data.
When DC engineering is in the past safeguarded, the isolation of service valve group is connected with forbidding, monitors and the shielding of exchanges data between main frame, is all to take artificial judgment and the measure such as temporarily to arrange realizes by transporting inspection personnel, does not also occur the method that can realize automatism isolation.Along with the complexity of system is more and more higher, fortune inspection personnel's judgement and the difficulty of taking measures more are come also large, and fail safe during maintenance is also more and more lower, and this is just in the urgent need to working out the method for a kind of high pressure/extra-high voltage direct-current transmission engineering valve group maintenance automatism isolation.
Summary of the invention
The object of the invention is: the implementation method providing a kind of high pressure/extra-high voltage direct-current transmission engineering valve group maintenance automatism isolation function, automatically completes the isolation of service valve group, ensure the safe operation of DC equipment.
In order to reach above-mentioned purpose, solution of the present invention is,
A kind of DC transmission engineering valve group maintenance automatism isolation implementation method, comprises step:
Valve group maintenance automatism isolation is set and starts button; Valve group maintenance signal is obtained by starting button; Send valve group maintenance signal to association DC control protected host; And carry out follow-up isolation action according to described maintenance signal, described follow-up isolation action comprises:
According to aforementioned maintenance signal association DC control main frame, automatic operation service valve group and operation valve group high-voltage electrical apparatus are isolated;
According to aforementioned maintenance input operation signal DC control protected host, the service valve group equipment state signal of collection is set to set point;
According to the supervision of aforementioned maintenance input operation signal DC control protected host shielding to service valve group equipment;
According to the DC control protected host operation service valve group equipment that aforementioned maintenance signal-inhibiting puts into operation;
The equipment of electrical isolation is used for according to the non-repair apparatus of Control protection host service function of aforementioned maintenance signal-inhibiting service valve group and service valve group region.
In such scheme: described startup button is virtual key, or actual installation.
In such scheme: described equipment state signal refers to the digital signal and/or the analog signal that reflect equipment state; Including but not limited to service valve group running status, switch tool status signal, voltage and current analog signals; Collection approach comprises the collection that directly gathers and/or communicate; Set point is that aforesaid equipment state signal is set to fixing isolation inspecting state.
In such scheme: the mode of operation of forbidding, comprise Non-follow control, automatically control and/or protection act.
In such scheme: described service valve group region is used for the equipment of electrical isolation, comprise for isolating service valve group and the switch tool running valve group.
Beneficial effect of the present invention: adopt the present invention can be started by a key, automatically the isolation features of service valve group is completed, instead of fortune inspection personnel and take artificial judgment and the interim measure arranged, alleviate workload and the technical capability requirement of fortune inspection personnel, avoid artificial judgment and operate the unreliability brought, ensureing the operation that direct current system is safe and reliable.
Accompanying drawing explanation
Fig. 1 is extra-high voltage direct-current Control protection system structure and communication scheme;
Fig. 2 is extra-high voltage direct-current primary connection circuit figure;
Fig. 3 is valve group maintenance automatism isolation method schematic diagram.
Embodiment
Below with reference to accompanying drawing, technical scheme of the present invention is described in detail.
The invention provides the automatism isolation function realizing method of a kind of DC transmission engineering valve group maintenance, comprise the steps:
(1) valve group maintenance automatism isolation being set and starting button, obtaining valve group maintenance signal by starting button.One method installs button in kind, the corresponding maintenance button of each valve group, the control and protection main frame of service valve group, the main control system of pole are by directly collecting valve group maintenance signal, and valve group maintenance signal is sent to the control and protection main frame of pole protected host, non-service valve group by the main control system of pole by inter-host communication; Another kind method monitors on background interface operations staff to arrange remote keying, send maintenance enabling signal to the control and protection main frame of service valve group, the main control system of pole by monitoring backstage, valve group maintenance signal is sent to the control and protection main frame of pole protected host, non-service valve group by the main control system of pole again by inter-host communication;
(2), after the main control system of service valve group obtains this valve group maintenance signal, automatism isolation operation is performed.DC converter station main electrical scheme schematic diagram as shown in Figure 2, to start maintenance to pole 1 high pressure valve group, automatic operation closes Q12, and point Q1, Q11, Q13, isolate service valve group and DC fields, then divide W1.Q1, W1.Q2, service valve group and alternating-current field are isolated;
(3) after the control and protection main frame of pole, the control and protection main frame of non-service valve group obtain aforementioned valve group maintenance signal, by each via directly gather or by communications reception to the status signal about service valve group equipment be set to fixing inspecting state.To start maintenance to pole 1 high pressure valve group, mainly contain that service valve group block signal puts 1, service valve group switch tool state is set to separately, the voltage and current analog signals in service valve group region is set to zero;
(4) after obtaining valve group maintenance signal, the supervision of direct current pole main control system shielding to service valve group control and protection main frame put into operation, the supervision of non-service valve group main control system shielding to service valve group main control system, the supervision of protected host shielding in pole to service valve group current measure device;
(5) after obtaining valve group maintenance signal, manual operation to service valve group equipment, automatic operation function are forbidden by DC control protected host in software that put into operation, and the protection act change of current of jumping service valve group being become inlet wire alternating-current switch and start failure protection exports to be forbidden;
(6) after obtaining valve group maintenance signal, the Control protection main frame quiescing service valve group region of service valve group can be caused service valve group and be run the primary equipment switch or disconnecting link that valve group high-voltage electrical apparatus is connected, DC converter station main electrical scheme schematic diagram as shown in Figure 2, to start maintenance to pole 1 high pressure valve group, quiescing Q12, Q11, Q13, prevent service valve group to be connected with DC fields, quiescing W1.Q1, W1.Q2, prevent service valve group and alternating-current field from isolating; And the protection act output change of current of jumping service valve group being become inlet wire alternating-current switch and start failure protection is forbidden.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (5)
1. a DC transmission engineering valve group maintenance automatism isolation implementation method, is characterized in that, comprise step:
Valve group maintenance automatism isolation is set and starts button; Valve group maintenance signal is obtained by starting button; Send valve group maintenance signal to association DC control protected host; And carry out follow-up isolation action according to described maintenance signal, described follow-up isolation action comprises:
According to aforementioned maintenance signal association DC control main frame, automatic operation service valve group and operation valve group high-voltage electrical apparatus are isolated;
According to aforementioned maintenance input operation signal DC control protected host, the service valve group equipment state signal of collection is set to set point;
According to the supervision of aforementioned maintenance input operation signal DC control protected host shielding to service valve group equipment;
According to the DC control protected host operation service valve group equipment that aforementioned maintenance signal-inhibiting puts into operation;
The equipment of electrical isolation is used for according to the non-repair apparatus of Control protection host service function of aforementioned maintenance signal-inhibiting service valve group and service valve group region.
2. a kind of DC transmission engineering valve group maintenance isolation implementation method as claimed in claim 1, is characterized in that: described startup button is virtual key, or actual installation.
3. a kind of DC transmission engineering valve group maintenance isolation implementation method as claimed in claim 1, is characterized in that: described equipment state signal refers to reflect digital signal and/or the analog signal of equipment state; Including but not limited to service valve group running status, switch tool status signal, voltage and current analog signals; Collection approach comprises the collection that directly gathers and/or communicate; Set point is that aforesaid equipment state signal is set to fixing isolation inspecting state.
4. a kind of DC transmission engineering valve group maintenance isolation implementation method as claimed in claim 1, is characterized in that: the mode of operation of forbidding, comprises Non-follow control, automatically control and/or protection act.
5. a kind of DC transmission engineering valve group maintenance isolation implementation method as claimed in claim 1, is characterized in that: described service valve group region is used for the equipment of electrical isolation, comprising for isolating service valve group and the switch tool running valve group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329262.2A CN105281234A (en) | 2014-07-10 | 2014-07-10 | Direct current power transmission engineering valve group overhauling automation isolation realization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329262.2A CN105281234A (en) | 2014-07-10 | 2014-07-10 | Direct current power transmission engineering valve group overhauling automation isolation realization method |
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| CN105281234A true CN105281234A (en) | 2016-01-27 |
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| CN201410329262.2A Pending CN105281234A (en) | 2014-07-10 | 2014-07-10 | Direct current power transmission engineering valve group overhauling automation isolation realization method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809110A (en) * | 2016-08-31 | 2018-03-16 | 南京南瑞继保电气有限公司 | A kind of parallel high voltage DC power transmission control system configuring method |
| CN110047267A (en) * | 2019-04-24 | 2019-07-23 | 广东电网有限责任公司 | A kind of signal blockage method and system |
| CN110137960A (en) * | 2019-05-30 | 2019-08-16 | 中国南方电网有限责任公司超高压输电公司昆明局 | A kind of extra-high voltage direct-current overhaul of the equipments secondary isolation method |
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| CN101719666A (en) * | 2008-10-09 | 2010-06-02 | 许继电气股份有限公司 | Ultra-high voltage DC series valve bank on-off control method |
| CN202405655U (en) * | 2011-11-29 | 2012-08-29 | 孙瑾 | Safety isolation device for overhauling valve group of convertor station |
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2014
- 2014-07-10 CN CN201410329262.2A patent/CN105281234A/en active Pending
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| CN101719666A (en) * | 2008-10-09 | 2010-06-02 | 许继电气股份有限公司 | Ultra-high voltage DC series valve bank on-off control method |
| CN202405655U (en) * | 2011-11-29 | 2012-08-29 | 孙瑾 | Safety isolation device for overhauling valve group of convertor station |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809110A (en) * | 2016-08-31 | 2018-03-16 | 南京南瑞继保电气有限公司 | A kind of parallel high voltage DC power transmission control system configuring method |
| CN110047267A (en) * | 2019-04-24 | 2019-07-23 | 广东电网有限责任公司 | A kind of signal blockage method and system |
| CN110137960A (en) * | 2019-05-30 | 2019-08-16 | 中国南方电网有限责任公司超高压输电公司昆明局 | A kind of extra-high voltage direct-current overhaul of the equipments secondary isolation method |
| CN110137960B (en) * | 2019-05-30 | 2022-12-13 | 中国南方电网有限责任公司超高压输电公司昆明局 | Secondary isolation method for extra-high voltage direct current equipment maintenance |
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Application publication date: 20160127 |