CN104747793A - Direct current convertor station valve cooling system and control method thereof - Google Patents
Direct current convertor station valve cooling system and control method thereof Download PDFInfo
- Publication number
- CN104747793A CN104747793A CN201510102788.1A CN201510102788A CN104747793A CN 104747793 A CN104747793 A CN 104747793A CN 201510102788 A CN201510102788 A CN 201510102788A CN 104747793 A CN104747793 A CN 104747793A
- Authority
- CN
- China
- Prior art keywords
- control signal
- water pump
- production
- feed water
- unit
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/03—Stopping, starting, unloading or idling control by means of valves
Abstract
The invention discloses a director current convertor station valve cooling system. The director current convertor station valve cooling system comprises a valve cooling unit, a production water supply unit and a valve cooling control unit. The valve cooling control unit is connected with the valve cooling unit and the production water supply unit, the valve cooling control unit is used for conducting flow detection on the valve cooling unit and sending a flow control signal, and the production water supply unit receives the flow control signal and controls the production water supply unit for output in a classification mode. When the production water supply unit does not receive the flow control signal, the production water supply unit automatically stops output, when a converter valve is started, the flow control signal is sent, a production water supply pump can be started, and if the flow control signal is not received, the production water supply pump stops automatically, so that the problem that the production water supply starts abnormally or stops operating due to the breakdown of a pressure sensor, and then the problems that a water pipe bursts or direct current blocks are avoided. The invention further provides a control method of the direct current convertor station cooling system.
Description
Technical field
The present invention relates to the current conversion station supplementary equipment of field HVDC transmission system, particularly relate to a kind of DC converter station valve cooling system and controlling method thereof.
Background technique
Valve cooling system is auxiliary system important in high voltage direct current transmission project, current changer adopts water-cooling pattern, it normally runs is the necessary condition ensureing converter valve reliable operation, out of service once break down, or produce the reason such as to leak and cause valve Room component wear etc., by directly causing high-voltage direct current abnormal, greatly have impact on the energy availability of high-voltage direct current.
Usually, valve cooling system comprises the inner cold water circulatory system and outer cold water circulating system, and inner cold water circulatory system cooling thyristor valve, outer cold water circulating system cools inner cold water again.Valve cooling system also comprises the production water supply system of the outer cold feed of maintaining valve, production water supply system adopts constant pressure water supply, in the outlet port producing feed water pump, ductwork pressure transmitter is installed, to monitor the ductwork pressure of the outer cold water water pipe of valve, and starts or stops according to pressure signal.But when pressure sensor component exception or fault, the exception of feed water pump may be caused to start or stop transport, thus make water pipe burst or DC system locking, even primary equipment is badly damaged.
Summary of the invention
Based on this, when being necessary for production water supply system pressure sensor exception or fault, cause water pipe to burst or the problem of DC system locking, a kind of DC converter station valve cooling system of linking with production water supply system and controlling method thereof are provided.
A kind of DC converter station valve cooling system, comprise the cold unit of valve, described DC converter station valve cooling system also comprises:
Produce to water unit, for keeping the outer cold feed of the cold unit of described valve;
Valve-cooling control unit, be connected to the cold unit of described valve and described production to water unit, described valve-cooling control unit is used for carrying out flow detection to the cold unit of described valve, and send flow control signal, described production receives described flow control signal respectively to water unit, and controls described production and exert oneself to water unit classification;
Wherein, when described production does not receive described flow control signal to water unit, described production stops exerting oneself to water unit.
Wherein in an embodiment, described production comprises to water unit produces feedwater control cabinet and produces feed water pump, described valve-cooling control unit is connected with the described control cabinet that feeds water of producing by shielding control cables, and described production feedwater control cabinet controls unlatching or the stopping of described production feed water pump.
Wherein in an embodiment, described production feed water pump is multiple stage, described production feedwater control cabinet controls the unlatching quantity of described production feed water pump and the output power of described production feed water pump according to the flow control signal that described valve-cooling control unit sends, and exerts oneself to realize classification.
Wherein in an embodiment, described production feedwater control cabinet adopts dual-purpose one to produce feed water pump for described in Schema control.
Wherein in an embodiment, described flow control signal is low discharge control signal or high flow capacity control signal, described production feedwater control cabinet receives described low discharge control signal or described high flow capacity control signal respectively, when receiving described low discharge control signal, described production feedwater control cabinet controls described production feed water pump and opens, realize lower exerting oneself, when described production feedwater control cabinet receives described high flow capacity control signal, described production feedwater control cabinet controls described production feed water pump and opens, and realizes comparatively high output;
Wherein, when described production feedwater control cabinet does not receive described low discharge control signal or high flow capacity control signal, described production feedwater control cabinet controls described production feed water pump to be stopped.
Wherein in an embodiment, described production feedwater control cabinet is also for the regulable control process of exerting oneself at described production feed water pump, and described production feedwater control cabinet, according to the pressure of pipe network, produces the output power of feed water pump described in variable frequency adjustment.
Wherein in an embodiment, the outlet of described production feed water pump pipe network is provided with and the described pressure sensor device produced the control cabinet that feeds water and be connected, describedly produce feedwater control cabinet also for obtaining the force value that described pressure sensor device is measured, and make comparisons with preset pressure value and described in s operation control, produce the output power of feed water pump.
Wherein in an embodiment, described pressure sensor device is the pressure transducer of redundant configuration, it comprises pressure transducer that a road normally uses and another road pressure transducer for subsequent use, described production feedwater control cabinet is also for judging the pressure signal that described pressure sensor device is measured, the pressure transducer of described normal use and described pressure transducer for subsequent use are connected to the outlet of described production feed water pump pipe network and described production is fed water between control cabinet, form regular link and extension wire respectively, when described pressure signal is abnormal, described production feedwater control cabinet controls to switch to extension wire.
A controlling method for DC converter station valve cooling system, comprises the following steps:
Obtain flow control signal;
Exert oneself according to the classification of described flow control signal production control feed water pump;
When not receiving flow control signal, controlling described production feed water pump and stopping.
Wherein in an embodiment, described exerting oneself according to the classification of described flow control signal production control feed water pump specifically comprises the following steps:
Resolve described flow control signal kind;
According to the unlatching quantity of described flow control signal production control feed water pump;
The output power of feed water pump is produced according to described flow control signal regulating and controlling.
Above-mentioned DC converter station valve cooling system and controlling method thereof, when converter valve starts, send flow control signal, production feed water pump can be started, do not receive flow control signal automatically to stop producing feed water pump, avoid because of pressure sensor failure, cause producing feedwater unit exception and start or stop transport, cause the problem of water pipe explosion or direct current locking.When converter valve is out of service, produces feedwater control cabinet and do not receive flow control signal, produce feed water pump and stop, avoiding in converter valve stoppage in transit situation, produce water work and start the waste caused, save running cost, extend the working life of equipment.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of the DC converter station valve cooling system of a mode of execution.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 1, a kind of DC converter station valve cooling system 10 in this preferred embodiment, comprises valve cold unit (not shown), valve-cooling control unit 12 and for keeping the production of the outer cold feed of the cold unit of this valve to water unit 14.This valve-cooling control unit 12 is connected to the cold unit of this valve and this production to water unit 14, and send flow control signal, this production receives this flow control signal to water unit 14, control this production to exert oneself to water unit 14 classification, when this production does not receive the flow control signal of this classification to water unit 14, this production stops exerting oneself to water unit 14.
Particularly, this production comprises to water unit 14 produces feedwater control cabinet 142 and produces feed water pump 144, this valve-cooling control unit 12 is connected by shielding control cables and this production control cabinet 142 that feeds water, this production feedwater control cabinet 142 controls unlatching or the stopping of this production feed water pump 144, exerts oneself to realize classification.Wherein, this production feed water pump 144 is multiple stage, and the flow control signal that this production feedwater control cabinet 142 can send according to this valve-cooling control unit 12 controls the unlatching quantity of this production feed water pump 144 and produces the output power of feed water pump 144.
Be described with the control procedure of specific embodiment to above-mentioned DC converter station valve cooling system 10 below:
As shown in Figure 1, in ultra-high voltage converter station, have 4 valve Rooms, the corresponding cover valve-cooling control unit 122 in each valve Room, valve-cooling control unit 12 comprises 4 sub-valve-cooling control unit, 122,4 valve Rooms and shares 1 cover production to water unit 14.Any a set of transmitted traffic control signal of 4 cover valve-cooling control unit 122, then produce and start to water management 142 cabinet production control feed water pump 144,4 cover valve-cooling control unit 122 all not transmitted traffic control signals, then produce feedwater space production control feed water pump 144 and stop.
Produce and comprise 3 production feed water pumps 144 to water unit 14, produce feedwater control cabinet 142 can carry out production control feed water pump 144 unlatching quantity and output power thereof according to flow control signal.Such as, first open a production feed water pump 144 according to flow control signal, if cannot ensure, ductwork pressure is constant, then according to flow control signal, open two production feed water pumps 144.
Be appreciated that the quantity of producing feed water pump 144 can set as the case may be, in this no limit.
Further, this production feedwater control cabinet 142 adopts dual-purpose standby this production feed water pump 144 of Schema control.Such as, 3 production feed water pumps 144, be in 2 by 1 standby operating mode, producing feedwater control cabinet 142 can according to the situation that puts into operation of producing feed water pump 144, select wherein 2 put into operation, thus guarantee that the time that 3 production feed water pumps 144 put into operation is even, improve the working life of equipment, and the operational efficiency preventing from producing feed water pump 144 fault and affect valve cooling system.
Further, the flow control signal that this valve-cooling control unit 12 sends is low discharge control signal or high flow capacity control signal, and this production feedwater space receives this low discharge control signal or this high flow capacity control signal respectively.When receiving this low discharge control signal, the production feed water pump 144 that this production feedwater control cabinet 142 controls lesser amt is opened, and when reception high flow capacity control signal, this production feedwater control cabinet 142 controls a greater number production feed water pump 144 and opens.When not receiving this low discharge control signal or high flow capacity control signal, this production feedwater control cabinet 142 controls this production feed water pump 144 to be stopped.As shown in Figure 1, every sub-valve-cooling control unit 122 is connected by shielding control cables and producing the control cabinet 142 that feeds water, low discharge signal line, high flow capacity signal line are all by dry contact also access production feed water pump 144, and sub-valve-cooling control unit 122 is accessed by signal common port (figure does not mark) and produces control cabinet 142 formation control loop of feeding water.
Be appreciated that, in the embodiment shown in fig. 1, producing feed water pump 144 can be divided into low discharge production feed water pump 1442 and high flow capacity to produce feed water pump 1444, is convenient to control and regulate the power producing feed water pump 144, thus the flow of timely balance adjustment pipe network and pressure.Certainly, in other embodiments, also can not distinguish low discharge and produce feed water pump 1442 and high flow capacity feed water pump 1444.
This production feedwater control cabinet 142 is also for the regulable control process of exerting oneself at this production feed water pump 144, and this production feeds water control cabinet 142 according to the pressure of pipe network, the output power of this production feed water pump 144 of variable frequency adjustment.Particularly, the outlet of this production feed water pump 144 pipe network is provided with the pressure sensor device (not shown) that the control cabinet 142 that to feed water with this production is connected, this production feedwater control cabinet 142 is also for obtaining the force value that this pressure sensor device is measured, and regulate the output power of this production feed water pump 144 with preset pressure value s operation control of making comparisons, the classification realizing producing feed water pump 144 is exerted oneself, thus ensures the constant pressure of pipe network.
Further, this pressure sensor device is the pressure transducer of redundant configuration, No. one pressure transducer is the normal pressure transducer used, another road pressure transducer is pressure transducer for subsequent use, this production feedwater control cabinet 142 is also for judging the pressure signal that this pressure sensor device is measured, the pressure transducer of normal use and pressure transducer for subsequent use are connected to the outlet of producing feed water pump 144 pipe network and this production is fed water between control cabinet 142, form regular link and extension wire respectively, when pressure signal judges abnormal, then produce feedwater control cabinet 142 to control to automatically switch to extension wire.That is, when producing the control cabinet 142 that feeds water and judging that pressure signal is abnormal, control to start pressure transducer for subsequent use, and switch connection pressure transducer for subsequent use and produce the circuit between control cabinet that feeds water.So, avoid pressure sensor failure and cause producing that feed water pump 144 is excessive exerts oneself or the too small ductwork pressure that brings of exerting oneself is excessive or the problem of straight-flow system locking.
A controlling method for DC converter station valve cooling system, comprises the following steps:
S110: obtain flow control signal;
Particularly, valve-cooling control cabinet is according to the flow of the pipe network detected, transmitted traffic controls signal to produces feedwater control cabinet.
S120: exert oneself according to the classification of described flow control signal production control feed water pump;
Particularly, S120 comprises the following steps:
S122: resolve described flow control signal kind;
Particularly, produce feedwater control cabinet 142 and resolve and distinguish the kind of flow control signal, in the present embodiment, flow control signal is high flow capacity control signal and low discharge control signal;
S124: according to the unlatching quantity of described flow control signal production control feed water pump;
Particularly, produce feedwater control cabinet 142 carrys out production control feed water pump 144 unlatching quantity according to flow control signal, when producing feedwater control cabinet 142 and obtaining low discharge control signal, open the production feed water pump 144 of lesser amt, when producing feedwater control cabinet 142 and obtaining high flow capacity control signal, open the production feed water pump 144 of a greater number;
S126: the output power of producing feed water pump according to described flow control signal regulating and controlling;
Particularly, according to the kind of flux signal, control the output power of production feed water pump 144 of opening, the force value that the pressure transducer be then provided with according to the pipe network outlet producing feed water pump 144 detects, produce the output power of feed water pump 144 with preset pressure value computing variable frequency adjustment of making comparisons;
S130: when not receiving flow control signal, controls described production feed water pump and stops.
In the present invention, when any converter valve starts, send flow control signal, can start and produce feed water pump 144, not receive flow control signal and automatically stop producing feed water pump 144, avoid because of pressure sensor failure, cause producing and cannot start to water unit 14, cause the problem of direct current locking.When converter valve is out of service, produces feedwater control cabinet 142 and do not receive flow control signal, produce feed water pump 144 and stop, avoid in converter valve stoppage in transit situation, produce water work and start the waste caused, save running cost, extend the working life of equipment.
In addition; pressure sensor device is that redundancy is arranged; produce feedwater control cabinet 142 and judge the whether abnormal automatic switching line of pressure signal, avoid pressure transducer exception or fault and cause producing feed water pump 144 and to exert oneself the problem of the excessive and direct current locking of the excessive or too small ductwork pressure caused.
The above embodiment only have expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a DC converter station valve cooling system, comprises the cold unit of valve, it is characterized in that, described DC converter station valve cooling system also comprises:
Produce to water unit, for keeping the outer cold feed of the cold unit of described valve;
Valve-cooling control unit, be connected to the cold unit of described valve and described production to water unit, described valve-cooling control unit is used for carrying out flow detection to the cold unit of described valve, and send flow control signal, described production receives described flow control signal respectively to water unit, and controls described production and exert oneself to water unit classification;
Wherein, when described production does not receive described flow control signal to water unit, described production stops exerting oneself to water unit.
2. DC converter station valve cooling system according to claim 1, it is characterized in that, described production comprises to water unit produces feedwater control cabinet and produces feed water pump, described valve-cooling control unit is connected with the described control cabinet that feeds water of producing by shielding control cables, and described production feedwater control cabinet controls unlatching or the stopping of described production feed water pump.
3. DC converter station valve cooling system according to claim 2, it is characterized in that, described production feed water pump is multiple stage, described production feedwater control cabinet controls the unlatching quantity of described production feed water pump and the output power of described production feed water pump according to the flow control signal that described valve-cooling control unit sends, and exerts oneself to realize classification.
4. DC converter station valve cooling system according to claim 3, is characterized in that, described production feedwater control cabinet adopts dual-purpose one to produce feed water pump for described in Schema control.
5. DC converter station valve cooling system according to claim 2, it is characterized in that, described flow control signal is low discharge control signal or high flow capacity control signal, described production feedwater control cabinet receives described low discharge control signal or described high flow capacity control signal respectively, when receiving described low discharge control signal, described production feedwater control cabinet controls described production feed water pump and opens, realize lower exerting oneself, when described production feedwater control cabinet receives described high flow capacity control signal, described production feedwater control cabinet controls described production feed water pump and opens, realize comparatively high output,
Wherein, when described production feedwater control cabinet does not receive described low discharge control signal or high flow capacity control signal, described production feedwater control cabinet controls described production feed water pump to be stopped.
6. DC converter station valve cooling system according to claim 2, it is characterized in that, described production feedwater control cabinet is also for the regulable control process of exerting oneself at described production feed water pump, and described production feedwater control cabinet, according to the pressure of pipe network, produces the output power of feed water pump described in variable frequency adjustment.
7. DC converter station valve cooling system according to claim 6, it is characterized in that, the outlet of described production feed water pump pipe network is provided with and the described pressure sensor device produced the control cabinet that feeds water and be connected, describedly produce feedwater control cabinet also for obtaining the force value that described pressure sensor device is measured, and make comparisons with preset pressure value and described in s operation control, produce the output power of feed water pump.
8. DC converter station valve cooling system according to claim 7, it is characterized in that, described pressure sensor device is the pressure transducer of redundant configuration, it comprises pressure transducer that a road normally uses and another road pressure transducer for subsequent use, described production feedwater control cabinet is also for judging the pressure signal that described pressure sensor device is measured, the pressure transducer of described normal use and described pressure transducer for subsequent use are connected to the outlet of described production feed water pump pipe network and described production is fed water between control cabinet, form regular link and extension wire respectively, when described pressure signal is abnormal, described production feedwater control cabinet controls to switch to extension wire.
9. a controlling method for DC converter station valve cooling system, is characterized in that, comprises the following steps:
Obtain flow control signal;
Exert oneself according to the classification of described flow control signal production control feed water pump;
When not receiving flow control signal, controlling described production feed water pump and stopping.
10. the controlling method of DC converter station valve cooling system according to claim 9, is characterized in that, described exerting oneself according to the classification of described flow control signal production control feed water pump specifically comprises the following steps:
Resolve described flow control signal kind;
According to the unlatching quantity of described flow control signal production control feed water pump;
The output power of feed water pump is produced according to described flow control signal regulating and controlling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510102788.1A CN104747793B (en) | 2015-03-09 | 2015-03-09 | DC converter station valve cooling system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510102788.1A CN104747793B (en) | 2015-03-09 | 2015-03-09 | DC converter station valve cooling system and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104747793A true CN104747793A (en) | 2015-07-01 |
| CN104747793B CN104747793B (en) | 2017-03-15 |
Family
ID=53587896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510102788.1A Active CN104747793B (en) | 2015-03-09 | 2015-03-09 | DC converter station valve cooling system and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104747793B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2242332B (en) * | 1988-10-07 | 1993-08-18 | Perfection Equip Inc | Cooling system for remotely dispensed beverages |
| US5623990A (en) * | 1995-11-03 | 1997-04-29 | Texan Corporation | Temperature-controlled water delivery system |
| CN201322859Y (en) * | 2008-10-08 | 2009-10-07 | 国网运行有限公司上海超高压管理处 | Cooling control system of converter valve |
| CN202712816U (en) * | 2012-08-17 | 2013-01-30 | 中国南方电网有限责任公司超高压输电公司 | Control system of valve cooling system of converter station |
| CN203151213U (en) * | 2013-03-30 | 2013-08-21 | 国家电网公司 | Converter station valve water cooling system signal power source |
| CN203336995U (en) * | 2013-06-01 | 2013-12-11 | 甘肃省电力设计院 | Direct-current converter station water cooling type outer cooling system |
| CN103582396A (en) * | 2013-11-06 | 2014-02-12 | 国家电网公司 | Outer cooling system with stored cold for direct current converter valve and operation method thereof |
| CN203608097U (en) * | 2013-12-09 | 2014-05-21 | 国家电网公司 | Outer cooling system of converter valve |
| CN204100889U (en) * | 2014-08-12 | 2015-01-14 | 中国南方电网有限责任公司超高压输电公司天生桥局 | A kind of Converter Station Valve cooling water-cooling generator |
| CN204554037U (en) * | 2015-03-09 | 2015-08-12 | 中国能源建设集团广东省电力设计研究院有限公司 | DC converter station valve cooling system |
-
2015
- 2015-03-09 CN CN201510102788.1A patent/CN104747793B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2242332B (en) * | 1988-10-07 | 1993-08-18 | Perfection Equip Inc | Cooling system for remotely dispensed beverages |
| US5623990A (en) * | 1995-11-03 | 1997-04-29 | Texan Corporation | Temperature-controlled water delivery system |
| CN201322859Y (en) * | 2008-10-08 | 2009-10-07 | 国网运行有限公司上海超高压管理处 | Cooling control system of converter valve |
| CN202712816U (en) * | 2012-08-17 | 2013-01-30 | 中国南方电网有限责任公司超高压输电公司 | Control system of valve cooling system of converter station |
| CN203151213U (en) * | 2013-03-30 | 2013-08-21 | 国家电网公司 | Converter station valve water cooling system signal power source |
| CN203336995U (en) * | 2013-06-01 | 2013-12-11 | 甘肃省电力设计院 | Direct-current converter station water cooling type outer cooling system |
| CN103582396A (en) * | 2013-11-06 | 2014-02-12 | 国家电网公司 | Outer cooling system with stored cold for direct current converter valve and operation method thereof |
| CN203608097U (en) * | 2013-12-09 | 2014-05-21 | 国家电网公司 | Outer cooling system of converter valve |
| CN204100889U (en) * | 2014-08-12 | 2015-01-14 | 中国南方电网有限责任公司超高压输电公司天生桥局 | A kind of Converter Station Valve cooling water-cooling generator |
| CN204554037U (en) * | 2015-03-09 | 2015-08-12 | 中国能源建设集团广东省电力设计研究院有限公司 | DC converter station valve cooling system |
Non-Patent Citations (2)
| Title |
|---|
| 刘森等: "贵广直流肇庆换流站阀冷切换控制系统浅析", 《电力系统保护与控制》 * |
| 段昊等: "换流站换流阀外冷设备安装方法", 《山东电力技术》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104747793B (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021088502A1 (en) | Control system of direct-current energy consumption device and control method therefor | |
| US20030133238A1 (en) | Utility control and autonomous disconnection of distributed generation from a power distribution system | |
| CN104932387B (en) | A kind of primary, spare device intelligence converter | |
| JP2011066493A (en) | Remote control system | |
| US20180278052A1 (en) | Converter apparatus having function of detecting short circuit failure, and method for detecting short circuit failure of converter apparatus | |
| CN107426756B (en) | Hot backup communication system and communication interface control module thereof | |
| CN103248038B (en) | Base station power supply network system and base station emergency power supply method | |
| CN112908651A (en) | Safe energy-saving transformer system | |
| CN204554037U (en) | DC converter station valve cooling system | |
| CN107257160A (en) | A kind of DC operation power supply system and its control method | |
| CN102545375B (en) | Automatic switching on/off method for emergency power supply of power plant | |
| CN104747793A (en) | Direct current convertor station valve cooling system and control method thereof | |
| CN106523330B (en) | A kind of multisystem air compression station compressed air is incorporated into the power networks pressure difference compensation control method | |
| CN204833627U (en) | A weeping detection alarm device for power station topping up equipment | |
| CN104682383B (en) | Method and system for adjusting open loop point by remote automatic bus transfer devices | |
| KR20170060971A (en) | Apparatus and method for managing power of electric power system connected with distributed generation | |
| US11277007B2 (en) | Power conversion device, power system and method of suppressing reactive power in power system | |
| CN105024403A (en) | Islanding and grid-connected signal control system and method for micro power grid | |
| KR20200065910A (en) | Energy storage system, and method for control thereof | |
| CN210430932U (en) | Low-voltage ride-through device for coal feeder in power plant | |
| JP5204030B2 (en) | Communications system | |
| CN109842202B (en) | Method for monitoring correctness of switching state of outlet pressing plate of automatic bus transfer device | |
| CN108736493B (en) | Construction method, control system and control method of power system safety island | |
| CN209329769U (en) | A kind of base station power supply control apparatus | |
| CN105048443A (en) | Shared storage battery pack based distributed DC power supply system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |