CN102545231A - Intelligent automatic voltage control system - Google Patents
Intelligent automatic voltage control system Download PDFInfo
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- CN102545231A CN102545231A CN2012100547461A CN201210054746A CN102545231A CN 102545231 A CN102545231 A CN 102545231A CN 2012100547461 A CN2012100547461 A CN 2012100547461A CN 201210054746 A CN201210054746 A CN 201210054746A CN 102545231 A CN102545231 A CN 102545231A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
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Abstract
The invention discloses an intelligent automatic voltage control system. The intelligent automatic voltage control system comprises a maintenance workstation, a geological survey control workstation, a calculation server, a monitoring workstation and a Web server, wherein the geological survey control workstation is connected with a supervisory control and data acquisition (SCADA) server and acquires main network data in a real-time manner; the maintenance workstation implements operation maintenance recording through a human-computer interface; the calculation server acquires an integrated regional power grid model from a power grid enhanced message service (EMS) system, performs reactive voltage calculation on the whole regional power grid and generates a control strategy; the monitoring workstation provides operating status query, log query and operation query of the system; and the Web server publishes calculation data and reports of the calculation server through a positive isolation device. The control system aims to enable three indexes of voltage quality, line loss and voltage stability margin of the power grid to reach the best status, so that operation safety and power supply reliability of the power system are guaranteed and direct and indirect economic benefits are remarkable.
Description
Technical field
The present invention relates to a kind of grid control system, specifically a kind of quality of voltage with electrical network, three indexs of line loss and voltage stability margin arrive at the intelligent automatic voltage control system that best condition is target control simultaneously.
Background technology
China's intelligent grid is to be the strong electrical network of key rack, electric network coordination at different levels development with extra-high voltage grid; Strive realizing informationization, automation, the digitlization, interactive on the electric power network technique; On the basis that guarantees power supply safety, reliable and high-quality, further realize cleaning, efficient, economy, environmental protection, interactive target.Therefore, intelligent AVC is that China's intelligent grid is built indispensable important component part.AVC is except that having the intelligent grid basic characteristics for intelligence, also has the characteristic of idle work optimization: realize the reactive power optimization operation automatically.In the electrical network each (power plant, transmission line, step-down transformer and electricity consumption enterprise) element is all accomplished idle in-situ balancing.In transmission line and the system interconnection transformer only through minimum idle.
Two generations of a traditional AVC generation, AVC only be qualified with quality of voltage be target, do not realize the whole network idle work optimization truly.
Summary of the invention
In order to overcome the problem that a traditional AVC generation and two generations of AVC exist; The purpose of this invention is to provide a kind of intelligent automatic voltage control system; This control system is with the quality of voltage of electrical network, and it is target control that three indexs of line loss and voltage stability margin arrive at best condition simultaneously, takes the external hanging type mode; Be independent of the SCADA/EMS system; Set up independently figure, model and parameter library,, obtain device parameter and real time data is carried out online topological analysis and computation optimization from the SCADA/EMS system with the SCADA/EMS system interface; Utilize the remote control, remote regulating function of SCADA/EMS system automatic switching, the automatic lifting of main transformer tap and the adjusting that generator reactive is exerted oneself, realize that institute is managed the whole electrical network zone of controlling carries out idle work optimization, Flexible Control and self-healing function capacitor reactive apparatus such as (reactors).
The objective of the invention is to realize through following technical scheme:
A kind of intelligent automatic voltage control system; It is characterized in that: this system comprise the maintenance work station, regulate and control system work station, calculation server, follow-up work station and Web server, regulate and control saidly that the system work station is connected with the SCADA server and real-time collection major network data; The maintenance work station is through man-machine interface complete operation maintenance record; Calculation server obtains complete area power grid model from major network EMS system, and the whole distract electrical network is carried out the calculating of reactive voltage, generates control strategy; The follow-up work station provides running status inquiry, log query and the operation control of system; Web server is issued the calculated data and the form of calculation server through the forward spacer assembly.
Among the present invention, the automatic reactive Voltage Optimum control system of electrical network adopts layer-stepping, and the regional idle work optimization system that is about to electrical network carries out two-layer unified operational management.Reactive power compensation of the whole network and voltage adjusting device are provided with two layer region idle work optimization systems according to equipment ownership, management ownership, operation ownership, promptly regional idle work optimization system and idle work optimization at county level system.
Native system is taked the external hanging type mode; Powerless voltage automatic control system for area power grid is independent of the SCADA/EMS system; Set up independently figure, model and parameter library; With the SCADA/EMS system interface; Obtain data (device parameter and real time data) from the SCADA/EMS system and carry out online topological analysis and computation optimization, utilize the remote control of SCADA/EMS system, remote regulating function to realize automatic switching, the automatic lifting of main transformer tap and the adjusting that generator reactive is exerted oneself capacitor reactive apparatus such as (reactors).For obtaining the real-time status information of electrical network, regional idle work optimization system and SCADA/EMS system set up the data exchange interface that satisfies stipulations, set up special idle work optimization control system.
Ground transfers the AVC of main website through transferring the SCADA system interface to gather the major network data in real time with ground; Zone main website of idle work optimization system carries out on-line analysis and calculating from regional dispatching SCADA system receiving real-time data; Idle work optimization is carried out in whole electrical network zone to manage control, utilizes the remote control of SCADA system, remote regulating that the equipment of transformer station is controlled automatically.
Among the present invention, the maintenance work station owner will move the man-machine interface of safeguarding of AVC, accomplishes various Operation and Maintenance records.System is provided with 2 AVC calculation servers and uses as two-node cluster hot backup.The Control Server installation and operation obtains complete area power grid model in the control centre from the EMS system, and the whole distract electrical network is carried out the calculating of reactive voltage, generates control strategy.Calculation server is the dual-locomotive heat standby operation, because fault when out of service, standby host is cut to main frame automatically when main frame.When adopting active/standby mode, standby host only calculates and does not control, and the user can inquire about various result of calculations on standby host.The follow-up work station provides the functions such as running status inquiry, log query and operation control of AVC system simultaneously, is installed in control centre or Surveillance center.The WEB publisher server is through the forward spacer assembly, AVC calculated data and form is distributed to respectively manages section office's use.
Intelligence AVC system utilizes user electric network model of in the EMS system, setting up and the real time data that SCADA gathers, and carries out analytical calculation, and the control command of formation is through the descending function of SCADA, and completion is to the closed-loop control of primary equipment.
SCADA remote measurement, remote signalling data are passed through the SCADA system of scheduling station; Import intelligent AVC system into 104 stipulations modes of standard; The control command that intelligence AVC system generates can be passed through the SCADA system forwards, also can directly send to concentrator station or transformer station through 104 stipulations.The interface of the SCADA of main website systems soft ware will satisfy the exchange of AVC system data.The present invention supports electric network model and operation information, historical data to derive, and supports to forward the data to the MIS net and supplies inquiry, supports the interface interchange of third party system.Satisfy electric network reactive-load voltage management platform desired data demand simultaneously, the required receipt of platform is mirrored to the WEB server.
The present invention adopts the standardized data interface.Intelligence AVC system follows the IEC61970 standard design and to satisfy the electric network data importing that common information model (CIM) be a standard.SVG figure importing work, and modeling function independently.Be adapted to the interface of different EMS systems with this.
The employing standard is obtained data and figure based on the CIM61970 pattern, and intelligent AVC system itself provides modeling tool; Also can get parms through conversion EMS system data file, intelligent AVC system can periodically directly obtain the real time data of SCADA system.
The present invention improves genetic algorithm.Simple generic algorithm speed is slower, sinks into local optimum easily, has used the improvement genetic algorithm in the intelligent AVC system, can handle multiple objective function more easily, on processing controls variable constraints, also relatively flexibly, can customize as required.
The present invention is with the quality of voltage of electrical network; It is target control that three indexs of line loss and voltage stability margin arrive at best condition simultaneously; Take the external hanging type mode; Be independent of the SCADA/EMS system, set up independently figure, model and parameter library, realize idle work optimization, Flexible Control and self-healing function are carried out in the whole electrical network zone of manage control.
Adopt the present invention that following advantage is arranged:
2, reduce remote electric energy loss, the energy-saving and emission-reduction of carrying reactive power and causing.
3, alleviated power system monitor operator on duty labour intensity, realization the whole network voltage power-less is controlled in real time.
4, perfect Reactive Voltage Management function is provided, for strict operation dispatching and the monitoring regime provide safeguard.
5, strengthened, supplied, with tripartite mutual aid and cooperation ability, realize the whole network idle work optimization control truly.
6, adopt information-based control technology, improve the intelligent operation level of electrical network.
The present invention optimizes the operation of power networks state, improves the power network safety operation level, optimizes the configuration of resources, and improves utilization rate of equipment and installations.Thereby guaranteed the safe operation and the power supply reliability of electric power system, directly and indirect economic effect remarkable.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
A kind of intelligent automatic voltage control system of the present invention; See Fig. 1; This system comprise maintenance work station 1, regulate and control system work station 2, calculation server 3, follow-up work station 4 and Web server 5, ground regulation and control system work station 2 is connected with SCADA server 6 and real-time collection major network data; Maintenance work station 1 is through man-machine interface complete operation maintenance record; Calculation server 3 obtains complete area power grid model from electrical network EMS system, and the whole distract electrical network is carried out the calculating of reactive voltage, generates control strategy; Follow-up work station 4 provides running status inquiry, log query and the operation control of system; Web server 5 is issued the calculated data and the form of calculation server 3 through the forward spacer assembly.
This system is provided with fully calculation server 31, and calculation server 3 be the dual-locomotive heat standby operation with being equipped with calculation server 31, because fault when out of service, calculation server 31 is cut to operation automatically fully at calculation server 3.Ground regulation and control system work station 2 is installed in the control centre.Follow-up work station 4 is installed in control centre or Surveillance center.
The present invention can transfer main website, tune station, county rationally to cooperate through ground, realizes the control of electrical network staged.Transfer SCADA system receiving real-time data to carry out online topological analysis and calculating from ground, carry out reactive Voltage Optimum from the whole network angle, and comprehensively the county transfers the idle regulating power that provides, transfer to the county and assign rational expectation index.
The county transfers SCADA system receiving real-time data to carry out online topological analysis and calculating, from the whole network angle, is considering to carry out voltage and reactive power optimization under the index situation that the ground accent is assigned; And transfer current electrical network situation according to the county, transfer for ground and upload the idle regulating power that the county transfers.
The real-time power network data that formed by EMS need be carried out Data Detection before reading in intelligent AVC system, its task is whether the real-time power network data file of confirming current formation is fit to get into intelligent AVC system and carries out series calculation.
Detect content specifically comprise following some:
(1) electrical network master data inspection is provided with its valid data scope to confirm its legitimacy to the data based operation of power networks experiences such as measurement qualification rate of electrical network essential information such as state estimation.
(2) the state estimation data and the measuring value error of comparison current data section check large-area data error whether occurs.
(3) the topological result data inspection of state estimation is carried out initial flow data inspection with current real time data section, confirm whether exist bad data to cause trend can not calculated, or the running status that exists unreasonable data to cause trend to calculate has than mistake.
The illegal data section of electrical network essential information occurs for detection, intelligent AVC system will not adopt;
Distortion data occurs for the current data section, need compare processing to distortion data, specific practice can substitute distortion data again according to former profile data variation tendencies, gets into next step processing then;
The preliminary treatment of flow data; To the topological analysis and the state estimation result of profile data, at first carry out power network topology result inspection, check the legitimacy of a node data and a circuit-switched data respectively; To get into bug check if any illegal data; When initial data are reasonable, carry out initial trend then and calculate, judge the trend convergence, otherwise get into initial trend error-detecting; When initial trend error in the GB prescribed limit, can think that this profile data is reasonable, can read in calculating for AVC software; Like unreasonable this profile data of then rejecting, require to regain current section file, carry out data processing again.
The present invention is with the quality of voltage of electrical network; It is target control that three indexs of line loss and voltage stability margin arrive at best condition simultaneously; Take the external hanging type mode; Be independent of the SCADA/EMS system, set up independently figure, model and parameter library, realize idle work optimization, Flexible Control and self-healing function are carried out in the whole electrical network zone of manage control.Optimize the operation of power networks state, improved the power network safety operation level, optimized the configuration of resources, improved utilization rate of equipment and installations.Thereby guaranteed the safe operation and the power supply reliability of electric power system, directly and indirect economic effect remarkable.
Claims (4)
1. intelligent automatic voltage control system; It is characterized in that: this system comprise maintenance work station (1), regulate and control system work station (2), calculation server (3), follow-up work station (4) and Web server (5), regulate and control system work station (2) saidly and be connected also real-time collection major network data with SCADA server (6); Maintenance work station (1) is through man-machine interface complete operation maintenance record; Calculation server (3) obtains complete area power grid model from electrical network EMS system, and the whole distract electrical network is carried out the calculating of reactive voltage, generates control strategy; Follow-up work station (4) provides running status inquiry, log query and the operation control of system; Web server (5) is issued the calculated data and the form of calculation server (3) through the forward spacer assembly.
2. intelligent automatic voltage control system according to claim 1; It is characterized in that: this system is provided with calculation server (31) fully; Calculation server (3) is the dual-locomotive heat standby operation with being equipped with calculation server (31); Because when out of service, being equipped with calculation server (31), fault is cut to operation at calculation server (3) automatically.
3. intelligent automatic voltage control system according to claim 1 is characterized in that: ground regulation and control system work stations (2) are installed in the control centre.
4. intelligent automatic voltage control system according to claim 1 is characterized in that: follow-up work station (4) are installed in control centre or Surveillance center.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100547461A CN102545231A (en) | 2012-03-05 | 2012-03-05 | Intelligent automatic voltage control system |
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| CN2012100547461A CN102545231A (en) | 2012-03-05 | 2012-03-05 | Intelligent automatic voltage control system |
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| CN102545231A true CN102545231A (en) | 2012-07-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105453365A (en) * | 2013-08-15 | 2016-03-30 | 三菱电机株式会社 | Voltage monitoring control device and voltage control device |
| CN105515011A (en) * | 2015-12-04 | 2016-04-20 | 国网浙江省电力公司绍兴供电公司 | Coordination control method for combined operation of regional and county automatic voltage control (AVC) systems |
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| CN101232182A (en) * | 2008-01-18 | 2008-07-30 | 清华大学 | Three-dimensional coordinated electric network energy managing system and method for controlling and evaluating electric network |
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| CN201853256U (en) * | 2009-12-10 | 2011-06-01 | 北京国际系统控制有限公司 | Intelligent scheduling system |
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2012
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| CN1630160A (en) * | 2004-08-27 | 2005-06-22 | 江苏省电力公司南京供电公司 | Method for establishing electric network monitoring disaster back-up system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105453365A (en) * | 2013-08-15 | 2016-03-30 | 三菱电机株式会社 | Voltage monitoring control device and voltage control device |
| CN105453365B (en) * | 2013-08-15 | 2018-03-09 | 三菱电机株式会社 | Voltage monitoring control device and voltage-operated device |
| CN105515011A (en) * | 2015-12-04 | 2016-04-20 | 国网浙江省电力公司绍兴供电公司 | Coordination control method for combined operation of regional and county automatic voltage control (AVC) systems |
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Application publication date: 20120704 |