WO2020155304A1 - 一种大规模可中断负荷的紧急精准控制方法和系统 - Google Patents

一种大规模可中断负荷的紧急精准控制方法和系统 Download PDF

Info

Publication number
WO2020155304A1
WO2020155304A1 PCT/CN2019/077323 CN2019077323W WO2020155304A1 WO 2020155304 A1 WO2020155304 A1 WO 2020155304A1 CN 2019077323 W CN2019077323 W CN 2019077323W WO 2020155304 A1 WO2020155304 A1 WO 2020155304A1
Authority
WO
WIPO (PCT)
Prior art keywords
load
control
shedding
load shedding
amount
Prior art date
Application number
PCT/CN2019/077323
Other languages
English (en)
French (fr)
Inventor
尹积军
陈庆
陈刚
陆晓
罗建裕
李海峰
李雪明
罗凯明
刘林
颜云松
江叶峰
任建锋
夏海峰
Original Assignee
国网江苏省电力有限公司
国电南瑞科技股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 国网江苏省电力有限公司, 国电南瑞科技股份有限公司 filed Critical 国网江苏省电力有限公司
Publication of WO2020155304A1 publication Critical patent/WO2020155304A1/zh

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H02J13/00024—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission by means of mobile telephony
    • H02J13/0013—
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0426—Programming the control sequence
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/26—Pc applications
    • G05B2219/2639—Energy management, use maximum of cheap power, keep peak load low
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • 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
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • Y04S40/121—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 using the power network as support for the transmission
    • 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
    • Y04S40/124—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 using wired telecommunication networks or data transmission busses
    • 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
    • Y04S40/126—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 using wireless data transmission

Definitions

  • the embodiments of the present application relate to the field of power systems and their automation technologies, for example, to a method and system for emergency precise control of large-scale interruptible loads.
  • the second and third lines of defense related to China's power grid mainly solve the low-frequency problem of the system through the control measures of the safety and stability control system and the low-frequency load shedding device to centrally cut some 110kV and 35kV load lines in the substation.
  • the relevant load emergency control object has a large granularity.
  • the loads carried by the removed 110kV and 35kV lines will all be out of power, which will cause major losses to the national economy and people’s production and life.
  • the unbalanced capacity is relatively large. Large-scale power grids will create new stability problems.
  • the number of load shedding execution stations connected to the relevant security and stability control system is limited.
  • the control master station can access up to 100 stations, which cannot meet the access of large-scale distributed interruptible load stations.
  • the low-frequency load shedding device also takes the 110kV and 35kV load lines collected locally as the single control object.
  • the low-frequency load shedding and load shedding cannot accurately distinguish a large number of interruptible loads and uninterruptible load branch circuits on the removed lines.
  • Each control point is based on the Ground frequency response, measures are independent of each other, it is difficult to coordinate, and the control capacity cannot be counted, which will cause large-scale blackout losses.
  • the load emergency control object is the 110kV and 35kV load lines collected in the substation, which cannot meet the access of large-scale dispersed interruptible load stations, and cannot accurately distinguish a large number of interruptible loads and uninterruptible load branch circuits on the removed lines. Measures are implemented The problem of large post-unbalanced capacity, which will cause large-scale blackout losses, needs to be solved urgently.
  • the embodiments of the present application provide a method and system for emergency and accurate control of large-scale interruptible loads, which can adapt to the need for load shedding capacity in the event of large disturbances in the power grid, and meet the needs of quickly removing the widely distributed interruptible load control in society , To achieve the effects of accurate control objects, accurate control capacity allocation and execution, and large-scale access load stations.
  • the embodiment of the application provides an emergency precision control method for a large-scale interruptible load.
  • the method is applied to an emergency precision control system for a large-scale interruptible load.
  • the emergency precision control system for an interruptible load includes an area control master station, at least one Control substations, and load control terminals, wherein the regional control master station is connected to at least one control substation, and each control substation is connected to at least one load control terminal; the method includes:
  • the regional control master station obtains the load shedding sequence table, where the load shedding sequence table includes the load shedding capacity of each level of each control substation; the regional control master station obtains the first load shedding required; regional control According to the first required load shedding amount, the master station performs minimum undercutting matching according to the hierarchy in the load shedding quantity sequence table, and cuts off the load shedding corresponding to the successfully matched control substation;
  • the regional control master station sends the second load shedding quantity to the control substation to be removed for load shedding processing.
  • the total amount of load shedding corresponding to the successfully matched control substation is equal to The difference between the first load shedding amount and the second load shedding amount.
  • the embodiment of the present application also provides a large-scale interruptible load emergency precision control system, including:
  • An area control master station a control substation and a load control terminal; wherein the area control master station is connected with at least one control substation, and each control substation is connected with at least one load control terminal;
  • the regional control master station is set to obtain a load-shedding amount sequence table, wherein the load-shedding amount sequence table includes the load-shedding amount of each level of each control substation; obtain the first load-shedding amount required; For the first load shedding required, perform the minimum undercut matching according to the hierarchy in the load shedding sequence table, and cut off the load shedding corresponding to the successfully matched control substation; and if there is a second load shedding required, the first 2.
  • the required load shedding is sent to the control substation to be removed for load shedding processing, where the total amount of load shedding corresponding to the successfully matched control substation is equal to the difference between the first load shedding and the second load shedding .
  • FIG. 1 is a flowchart of a method for emergency and precise control of a large-scale interruptible load according to an embodiment of the present application
  • FIG. 3 is a flowchart of yet another method for emergency precise control of large-scale interruptible loads provided by an embodiment of the present application
  • FIG. 4 is a flowchart of yet another method for emergency precise control of large-scale interruptible loads according to an embodiment of the present application
  • Fig. 5 is a schematic diagram of a large-scale interruptible load emergency precision control system provided by an embodiment of the present application.
  • FIG. 1 is a flowchart of a method for emergency and precise control of a large-scale interruptible load provided by an embodiment of the present application.
  • the emergency precision control method for large-scale interruptible loads provided by the embodiments of the present application is applied to an emergency precision control system for large-scale interruptible loads.
  • the emergency precision control system for interruptible loads includes an area control master station and at least one control substation. Stations, and load control terminals, where the regional control master station is connected to at least one control sub-station, and each control sub-station is connected to at least one load control terminal. Referring to FIG. 1, the method includes: step S101 to step S104.
  • step S101 the regional control master station obtains the load shedding sequence table.
  • the load-shedding amount sequence table includes the load-shedding amount of each level of each control substation.
  • the load-shedding amount sequence table is the load-shedding capacity information of each level uploaded by each control substation received by the regional control master station, and the load-shedding amount sequence table includes the control range of the regional control master station The collection of all load-shedding capacities.
  • step S102 the regional control master station obtains the first load shedding required.
  • the regional control master station receives a load shedding command from the superior control station or executes an on-site control strategy, decomposes the control instruction according to the distribution algorithm, and obtains the first load shedding required.
  • the first load shedding volume refers to the load capacity that needs to be removed.
  • step S103 the regional control master station performs the minimum undercut matching in the sequence table of the load shedding amount according to the first load shedding required, and cuts off the load shedding corresponding to the successfully matched control substation.
  • the regional control master station calculates and organizes the load-shedding capacity information of each level and each control substation in the load-shedding capacity sequence table, and generates the load-shedding capacity sequence table for the substations.
  • the first load shedding required and the load sequence table of the cuttable substations are matched layer by layer. If the matching is successful, the regional control master station will cut and match. The load shedding corresponding to the successful control sub-station; if the matching fails, the regional control master station continues to match the first load shedding volume with the load-switchable sub-station load sequence table layer by layer until the matching is successful.
  • step S104 if there is a second load shedding amount, the regional control master station sends the second load shedding amount to the control substation to be removed for load shedding processing.
  • the total amount of load shedding corresponding to the successfully matched control substation is equal to the difference between the first load shedding amount and the second load shedding amount.
  • the second load shedding requirement means that the regional control master station performs hierarchical matching in the load shedding sequence table of the substations according to the load shedding capacity required, and cuts off the load shedding corresponding to the successfully matched control substation. After that, the remaining load shedding is less than the load shedding of the latter control substation. If there is a second load shedding quantity, the regional control master station sends the second load shedding quantity to the control substation to be removed.
  • the control substation to be removed treats the load control terminal corresponding to the control substation according to the principle of minimum undercutting. Perform minimum undercut matching and load removal processing at levels to achieve emergency and precise control of large-scale distributed interruptible loads, and improve the rapid and accurate removal of large-scale distributed interruptible loads.
  • the emergency and precise control method for large-scale interruptible loads includes the area control master station obtaining a load-shedding amount sequence table, where the load-shedding amount sequence table includes the available load-shedding amount of each level of each control substation.
  • the total amount of load shedding is equal to the difference between the first load shedding and the second load shedding.
  • the emergency and accurate control method for large-scale interruptible loads implements the minimum undercutting and matching of the load shedding level by level, so as to achieve precise and rapid removal of the interruptible loads according to the priority ranking, and realizes the large-scale decentralization.
  • the interruption of load station access solves the problem that the large number of interruptible loads and uninterruptible loads on the removed line cannot be accurately distinguished, and the large unbalanced capacity after the implementation of the measures has caused large-scale blackout losses.
  • the regional control master station obtains the load-shedding quantity sequence table, for example, it may include the regional control master station receiving the load shedding quantity of each level of the control substation sent by each control substation, and generating the Load shedding sequence table.
  • the load shedding capacity of each level of each control substation is summarized and calculated after the control substation receives the load shedding information sent by all load control terminals connected to the control substation.
  • the quantity information includes the total power of all load-shedding branch circuits under the load control terminal.
  • the load control terminal collects the active power of the interruptible load branch circuit, calculates the total load shedding of the load control terminal, and sends it to the control substation; the control substation controls the load according to the level setting
  • the terminal is layered, calculates the total amount of load shedding for each level, and sends it to the regional control master station.
  • the regional control master station receives the load shedding capacity information of each level of the control substation, calculates and organizes each level and each control substation.
  • the load-shedding capacity information of the station generates a sequence table of the load-shedding capacity.
  • the load control terminal collects the voltage signal, current signal and switch position signal of the branch circuit of the load that can be interrupted by the station, and calculates the active power of the branch circuit that can be interrupted in real time. According to the allowable switching status, switching status, and power direction of each branch circuit, calculate the total load shedding of the station in real time. For example, the total load shedding of the first load control terminal in the first control substation is recorded as P all 11 , and P all 11 is sent to the first control substation.
  • the control sub-station receives the load shedding amount sent by each load control terminal to which it belongs, and each load control terminal is configured with a hierarchical value of the load shedding sequence, and the hierarchical value can be set to a natural number, such as 1, 2, 3, 4 ......N, the smaller the value, the higher the priority, that is, the more priority it is to be removed.
  • Each load control terminal is calculated in layers according to the fixed value of the level, and the load shedding of each level is calculated in real time.
  • the regional control master station receives the load-shedding capacity information of each control sub-station to which it belongs, and calculates and organizes the sequence table of the load-shedding capacity of each level and each control sub-station.
  • the load of the first level is: P 11 , P 21 , P 31 ??P m1 ;
  • the second level load capacity is: P 12 , P 22 , P 32 ??P m2 ;
  • the third-level load capacity is: P 13 , P 23 , P 33 ??P m3 ;
  • the regional control master station receives the load shedding capacity command of the superior control station or according to other control strategies, and obtains the first required load shedding amount P cut0 .
  • the regional control master station Further calculate and organize the load-cutting capacity information of each level and each control sub-station, and generate a load-cutting-sub-station load sequence table.
  • the load sequence table of the cuttable substations is as follows:
  • control substation to be removed in this example is the third control substation.
  • the emergency precise control method for large-scale interruptible loads of this embodiment realizes that loads are distributed according to levels, and priority is given to cutting off the load-shedding capacity of the control substations corresponding to the higher priority levels within the range of the capacity to be cut.
  • FIG. 2 is a flowchart of another method for emergency precise control of large-scale interruptible loads provided by an embodiment of the present application.
  • the control sub-station to be removed performs load removal processing on the second load required to be removed, including: step S201, step S202, and step S203.
  • step S201 the control sub-station obtains the terminal load sequence table that can be cut.
  • the active power of the interruptible load branch circuit collected by the load control terminal is calculated and the total load shedding of the load control terminal is calculated and sent to the control substation.
  • the control substation will Load control terminal hierarchical, calculate the total amount of load shedding at each level, and generate a sequence table of terminal load shedding.
  • step S202 the control sub-station to be removed performs minimum undercut matching in the sequence table of the terminal load capacity that can be removed according to the second required load shedding quantity, and removes the load shedding corresponding to the successfully matched load control terminal.
  • control sub-station to be removed performs the second load shedding and the terminal load shedding sequence table layer by layer according to the second load shedding requirement and the principle of minimum undercutting in the terminal load shedding sequence table to be removed. Matching, if the matching is successful, the control substation to be removed will remove the load shedding corresponding to the successfully matched load control terminal; if the matching fails, the control substation to be removed will continue to sequence according to the second required load shedding and the load shedding of the terminal load. The list is matched layer by layer until the matching is successful.
  • step S203 if there is a third load shedding demand, the control sub-station to be removed sends the third load shedding demand to the load shedding control terminal for load shedding processing.
  • the total amount of load shedding corresponding to the successfully matched load control terminal is equal to the difference between the second load shedding amount and the third load shedding amount.
  • the third load shedding requirement refers to the load shedding capacity required by the control sub-station to be removed, and after level matching is performed in the load shedding sequence table of the terminal load quantity sequence table to be removed, the load control terminal corresponding to the load control terminal that is successfully removed and matched can be removed. After the load, the remaining load shedding is less than the available load shedding of each load control terminal.
  • the control sub-station to be removed sends the third load shedding quantity to the load control terminal to be removed, and the load control terminal to be removed treats the interruptible branch corresponding to the load shedding control terminal according to the principle of minimum undercutting
  • the circuit is matched and cut off the load processing to realize the precise control of the large-scale distributed interruptible load and the interruptible branch circuit, and improve the rapid and accurate removal of the large-scale distributed interruptible load.
  • the to-be-cut control sub-station performs the minimum undercut matching with the terminal as the basic element in the sequence table of the terminal load capacity that can be cut according to the second required load shedding P cut1 .
  • the third control substation receives the second load shedding P cut1 command from the superior regional control master station, and uses P cut1 as the load shedding capacity to perform minimum undercut distribution among the load control terminals connected to this substation.
  • the load capacity is: P 11 3 , P 21 3 , P 31 3 ??P i1 3 ;
  • P cut2 will send a control command to the third load control terminal of the first level of the third control substation for execution.
  • the load control terminal to be cut in this example is the third load control terminal, and the third load cut amount is the remaining load cut capacity P cut2 .
  • the emergency precision control method for large-scale interruptible loads of this embodiment realizes the terminal-level allocation and removal of load-shedding capacity according to the level, and the priority removal of the high-priority level within the required capacity range corresponds to the load-shedding of the load control terminal High capacity and high accuracy.
  • FIG. 3 is a flowchart of yet another method for emergency precise control of large-scale interruptible loads provided by an embodiment of the present application.
  • the load-to-be-cut load control terminal performs load-cutting processing on the third load-cutting amount, including: step S301 and step S302.
  • step S301 the load control terminal to be removed adopts a quick sort method to sort all the load-shedding branches under the load control terminal to be removed in the order of priority from high to low, to generate a load-shedding branch sequence table.
  • the load control terminal collects the voltage signal, current signal and switch position signal of the branch circuit of the load that can be interrupted by the station, and calculates the active power of the branch circuit that can be interrupted by the user in real time. According to the allowable switching status, switching status, and power direction of each branch circuit, calculate the total load shedding capacity of the load control terminal in real time, and use the quick sort method to divide all the load shedding branches under the load control terminal to be removed The loops are sorted and sorted in order of priority from high to low to generate a load-shedding branch sequence table.
  • step S302 the load control terminal to be removed performs minimum undercut matching in the load-shedding branch sequence table according to the third required load-shedding amount, and cuts off the load-shedding branch corresponding to the successfully matched load-shedding branch.
  • the load to be cut control terminal performs branch matching in the switchable branch circuit sequence table according to the third load required to be cut, and cuts the corresponding branch switch according to the principle of minimum undercutting.
  • the control substation to be removed for example, the third load control terminal of the first level to which the third control substation belongs, receives the upper-level load shedding instruction, that is, the control substation to be removed removes the third load shedding capacity P With the cut2 command, the third load control terminal takes P cut2 as the load shedding capacity, and performs the smallest undercut distribution in the interruptible load branch circuit connected to the load control terminal.
  • the x load branch circuits are set to 1, 2, 3, 4...(x-1), x priority, the smaller the number of the branch circuit, The higher the priority, the priority to be removed.
  • the quick sorting method is used to sort the load components of each branch circuit in the order of priority from high to low.
  • the sequence table of switchable branch circuits can be set as:
  • the load-shedding capacity in the first round is: P 1 33 ;
  • the load-shedding capacity of the second round is: ⁇ (P 1 33 ,P 2 33 );
  • the load shedding capacity in the third round is: ⁇ (P 1 33 ,P 2 33 ,P 3 33 )
  • P x 33 represents the x-th round of load shedding capacity of the third load control terminal in the first level of the third control substation.
  • the note load control terminal is the third load control in the first level of the third control substation.
  • the branch circuit y to be cut is obtained according to the principle of minimum undercut, and the load control terminal to be cut quickly cuts all the branch circuits with priority 1 to y to realize the accurate distribution of load control capacity.
  • Fig. 4 is a flowchart of yet another method for emergency precise control of large-scale interruptible loads provided by an embodiment of the present application.
  • the selective switching judgment process of generating a priority sequence table of load-shedding elements during the process of removing the interruptible branch circuit to which the load control terminal to be removed belongs is as follows:
  • M and N are natural numbers, they both indicate that after the load control terminal generates the sequence list according to the order of priority, the sequence number of the components in the sequence list that can interrupt the branch circuit; Z is the sequence number for judging the load shedding branch circuit again.
  • step S402 it is determined whether the M-th element in the sequence table is cuttable, if the M-th element is cuttable, step S403 is executed; otherwise, step S406 is executed.
  • step S403 it is determined whether the third required load shedding amount P cut2 is greater than the load amount P M of the M- th component, if yes, step S407 is executed; if not, step S404 is executed.
  • step S406 it is determined whether M is equal to the total number of components, if it is, that is, the sequence number of the M-th cuttable component is equal to the total number of components, step S415 is executed; if not, step S405 is executed.
  • step S415 the M-th component is included in the component object set to be cut, and the load shedding judgment ends.
  • step S404 it is judged whether the current control measure is the undercut principle. If yes, execute step S408.
  • step S409 it is determined whether the priority of the Mth element is equal to the priority of the Nth element, where the Nth element is the previous element of the Mth element in the sequence table. If not, step S415 is executed to remove the components included in the component object set to be cut in step S407, and the load shedding judgment ends. If yes, that is, the priority of the M-th component is equal to the priority of the N-th component, and the priority of the M-th component and the N-th component are bundled, step S410 is executed.
  • step S411 it is determined whether the priority of the Z-th component is equal to the priority of the N-th component, if not, that is, the priority of the Z-th component is not equal to the priority of the N-th component, then step S415 is executed to change the current column The components in the component object set to be cut are removed, and the load shedding judgment ends. If yes, that is, the priority of the Zth component is equal to the priority of the Nth component, that is, the Zth component and the Nth component are bound, then step S412 is executed.
  • step S412 the Z-th component is included in the set of non-cutting components. Then, step S413 is executed.
  • step S413 it is judged whether Z is equal to 1, that is, whether the Z-th element is the first element in the sequence list. If so, step S415 is executed to remove the elements currently included in the set of objects to be cut, and the load shedding judgment ends. If not, step S414 is executed.
  • step S414 set Z equal to Z-1, and return to step S411, sequentially exclude components with the same priority from the set of components to be cut, and finally execute step S415 to remove the components included in the set of objects to be cut.
  • the load shedding judgment is all over.
  • step S404 when it is judged whether the current control measure is the undercut principle, only the case of yes is drawn as an example.
  • the emergency and precise control method of the large-scale interruptible load of this embodiment realizes that the large-scale interruptible load branch circuit is distributed and removed according to different levels and priorities, and the interruptible load branch circuit with the highest priority is preferentially removed, with higher accuracy , More selective.
  • the regional control master station and at least one control sub-station can communicate via a 2M channel of a synchronous digital hierarchy (Synchronous Digital Hierarchy, SDH) backbone transmission network; each control sub-station and at least one load control terminal can communicate through at least the following One way to communicate: communication optical cables share 2M channels, coaxial cables exclusive 2M channels, 4G private network wireless, and Ethernet.
  • SDH Synchronous Digital Hierarchy
  • the emergency precision control system for interruptible load is generally divided into three layers, namely the regional control master station layer, the at least one control sub-station layer, and the user load control terminal access layer.
  • the user load control terminal access layer adopts a variety of flexible communication access methods according to the interruptible load type of access.
  • the method may include: the 2M channel between the regional control master station and the control substation is carried by the inter-provincial or provincial SDH backbone transmission network, and the communication system can provide dual equipment and dual routing configuration conditions for the A and B devices.
  • the communication interface of the regional control master station is the E1 interface that meets the G.703 protocol.
  • the communication interface between the control substation and the regional control master station is the E1 interface
  • the downstream interface of the user load control terminal access layer is a 155M optical fiber interface that conforms to the STM-1 frame structure standard.
  • the user load control terminal access layer uses different methods to access the control sub-stations according to the characteristics of the interruptible load under its own jurisdiction.
  • the access scale of each control sub-station can satisfy 240 households. If the interruptible load is an ordinary large user, such as industrial users, large commercial users, car charging stations, and energy storage power stations, since the user-side power distribution station does not have SDH equipment, it is necessary to establish communication between the user site and the access substation
  • Optical cables provide optical fiber channels for load control terminals to access substations, and then a dedicated multi-user aggregation photoelectric conversion device is connected to SDH equipment through the E1 interface, and then a communication link sharing 2M channels is established with the control substation.
  • interruptible load is the auxiliary equipment system of a large industrial and mining enterprise in coal-fired power plants, since such users generally have SDH equipment, such interruptible auxiliary equipment load control terminals can be directly connected to the local site through the E1 interface and 75 ohm coaxial cable SDH, establishes an exclusive 2M channel communication connection with the control substation.
  • the communication interface devices connected to substations and power plants shall provide alternate uplink ports of A channel and B channel.
  • the load control terminal is within the coverage of the 4G private network (TD-LTE), wireless communication access methods can be adopted.
  • a multi-user access device and a photoelectric conversion module are arranged at the TD-LTE core network switch.
  • the multi-user access device is connected to the E1 interface of the SDH equipment in the station, and the photoelectric conversion module is connected to the downstream.
  • the photoelectric conversion module uses Ethernet to connect to the core network switch.
  • Fig. 5 is a schematic diagram of a large-scale interruptible load emergency precision control system provided by an embodiment of the present application.
  • the large-scale interruptible load emergency precision control system provided by the embodiment of the present application includes an area control master station 41, a control substation 42, and a load control terminal 43; wherein the area control master station 41 and at least one control substation 42 is connected, and each control sub-station 42 is connected to at least one load control terminal 43.
  • the regional control master station 41 is configured to obtain a load-shedding amount sequence table, wherein the load-shedding amount sequence table includes the load-shedding amount of each level of each control sub-station; acquiring the first load-shedding amount required; According to the first load shedding volume, the minimum undercutting matching is performed in the sequence table of the load shedding volume according to the hierarchy, and the matching load shedding corresponding to the successfully matched control substation is cut; and if there is a second load shedding volume, the The second load shedding quantity is sent to the control substation to be removed for load shedding processing, where the total amount of load shedding corresponding to the successfully matched control substation is equal to the difference between the first load shedding quantity and the second load shedding quantity value.
  • the regional control master station 41 is further configured to receive the load shedding amount of each level of the control substation sent by each control substation, and generate a load shedding amount sequence table.
  • the load shedding capacity of each level of each control substation is summarized and calculated after the control substation receives the load shedding information sent by all load control terminals connected to the control substation, and the load shedding capacity is calculated.
  • the information includes the total power of all load-shedding branch circuits under the load control terminal.
  • control sub-station 42 is configured to obtain the terminal load shedding sequence table; according to the second load shedding requirement, perform minimum undercutting matching according to levels in the terminal load shedding sequence table, and cut matching The load shedding corresponding to the successful load control terminal; and if there is a third load shedding demand, the third load shedding demand is sent to the load shedding control terminal for load shedding processing, where the successfully matched load control terminal corresponds to The total amount of load shedding is equal to the difference between the second load shedding and the third load shedding.
  • the load control terminal 43 is configured to use a quick sort method to sort all load shedding branches under the load control terminal to be removed in order of priority from high to low, and generate a load shedding branch sequence table ; And according to the third required load shedding amount, in the load shedding branch sequence table, perform minimum undercut matching according to hierarchy, and cut off the load corresponding to the successfully matched load shedding branch.
  • the regional control master station 41 and the control substation 42 communicate through the SDH backbone transmission network 2M channel; the control substation 42 and the load control terminal 43 communicate through at least one of the following methods: the communication optical cable shares the 2M channel, the same Shaft cable exclusively enjoys 2M channels, 4G private network wireless, and Ethernet.
  • the large-scale interruptible load emergency precision control system includes an area control master station, a control substation, and a load control terminal.
  • the area control master station receives each control substation sent by each control substation.
  • Hierarchical load shedding is generated, and a sequence table of load shedding is generated.
  • the control sub-stations perform minimum under-cutting and matching the load shedding level by level, and the load control terminal prioritizes the load shedding accurately and quickly.
  • the emergency precision control system for large-scale interruptible loads provided by the embodiments of the present application realizes the access of large-scale dispersed interruptible load sites and accurate and rapid load shedding, which solves the inability to accurately distinguish the large number of interruptible loads on the removed lines.
  • this embodiment also provides a computer-readable storage medium on which a computer program is stored.
  • the method includes: the regional control master station obtains a load-shedding amount sequence table, wherein the load-shedding amount sequence table includes each control element The load shedding capacity of each level of the station; the regional control master station obtains the first load shedding requirement; the regional control master station performs the minimum undercutting matching according to the level in the load shedding sequence table according to the first load shedding requirement , And cut off the load shedding corresponding to the successfully matched control substation; if there is a second load shedding requirement, the regional control master station will send the second load shedding quantity to the control substation to be removed for load shedding processing, among which, The total amount of load shedding corresponding to
  • the computer-readable storage medium containing executable instructions provided by the embodiments of the present application is not limited to the operation of the emergency precise control method for large-scale interruptible loads as described above, and can also execute any The relevant operations in the emergency precise control method for large-scale interruptible loads provided by the embodiments have corresponding functions and beneficial effects.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

公开了一种大规模可中断负荷的紧急精准控制方法和系统。该方法包括：区域控制主站获取可切负荷量序列表；区域控制主站获取第一需切负荷量；区域控制主站根据第一需切负荷量，按层级进行最小欠切匹配，并切除匹配成功的控制子站对应的可切负荷；若存在第二需切负荷量，区域控制主站则将第二需切负荷量发送至对应控制子站进行切除负荷处理。

Description

一种大规模可中断负荷的紧急精准控制方法和系统
本申请要求在2019年02月01日提交中国专利局、申请号为201910103398.4的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及电力系统及其自动化技术领域，例如涉及一种大规模可中断负荷的紧急精准控制方法和系统。
背景技术
中国电网相关的第二、三道防线，主要通过安全稳定控制系统和低频减载装置集中切除变电站部分110kV、35kV负荷线路的控制措施，来解决系统低频问题。相关负荷紧急控制对象颗粒度大，被切除的110kV、35kV线路上所带的负荷会全部停电，给国民经济和人民的生产生活带来重大的损失，措施执行后不平衡容量较大，对于小规模电网会产生新的稳定问题。另一方面，相关安全稳定控制系统接入的切负荷执行站数量有限，目前控制主站最多能接入100个以内，无法满足大规模分散的可中断负荷站点的接入。目前低频减载装置也是以就地采集的110kV、35kV负荷线路为单一控制对象，低频减载切负荷也不能准确区分被切除线路上大量可中断负荷和不可中断负荷分支回路，各控制点基于就地频率响应，措施相互独立，难以协调，控制容量更是无法统计，会造成大面积停电损失。
负荷紧急控制对象是变电站就地采集的110kV、35kV负荷线路，无法满足大规模分散的可中断负荷站点的接入，不能准确区分被切除线路上大量可中断负荷和不可中断负荷分支回路，措施执行后不平衡容量较大，会造成大面积停电损失的问题亟待解决。
发明内容
本申请实施例提供一种大规模可中断负荷的紧急精准控制方法和系统，能够适应电网在发生大扰动情况下，根据需切负荷容量，满足快速切除社会上广泛分布的可中断负荷控制的需求，实现控制对象准确、控制容量分配和执行精确以及接入负荷站点规模大的效果。
本申请采用以下技术方案：
本申请实施例提供了一种大规模可中断负荷的紧急精准控制方法，该方法应用于大规模可中断负荷的紧急精准控制系统，可中断负荷的紧急精准控制系统包括区域控制主站、至少一个控制子站，以及负荷控制终端，其中，区域控制主站与至少一个控制子站连接，每个控制子站与至少一个负荷控制终端连接；该方法包括：
区域控制主站获取可切负荷量序列表，其中，可切负荷量序列表包括每个控制子站的每个层级的可切负荷量；区域控制主站获取第一需切负荷量；区域控制主站根据第一需切负荷量，在可切负荷量序列表内按层级进行最小欠切匹配，并切除匹配成功的控制子站对应的可切负荷；
若存在第二需切负荷量，区域控制主站则将第二需切负荷量发送至待切除控制子站进行切除负荷处理，其中，匹配成功的控制子站对应的可切负荷的总量等于第一需切负荷量和第二需切负荷量的差值。
本申请实施例还提供了一种大规模可中断负荷的紧急精准控制系统，包括：
区域控制主站、控制子站以及负荷控制终端；其中，区域控制主站与至少一个控制子站连接，每个控制子站与至少一个负荷控制终端连接；
区域控制主站，设置为获取可切负荷量序列表，其中，可切负荷量序列表包括每个所述控制子站的每个层级的可切负荷量；获取第一需切负荷量；根据第一需切负荷量，在可切负荷量序列表内按层级进行最小欠切匹配，并切除匹配成功的控制子站对应的可切负荷；以及若存在第二需切负荷量，则将第二需切负荷量发送至待切除控制子站进行切除负荷处理，其中，匹配成功的控制子站对应的可切负荷的总量等于第一需切负荷量和第二需切负荷量的差值。
附图概述
下面将对本申请实施例描述中所需要使用的附图作简单的介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据本申请实施例的内容和这些附图获得其他的附图。
图1是本申请实施例提供的一种大规模可中断负荷的紧急精准控制方法的流程图；
图2是本申请实施例提供的另一种大规模可中断负荷的紧急精准控制方法的流程图；
图3是本申请实施例提供的又一种大规模可中断负荷的紧急精准控制方法的流程图；
图4是本申请实施例提供的又一种大规模可中断负荷的紧急精准控制方法的流程图；
图5是本申请实施例提供的一种大规模可中断负荷的紧急精准控制系统的示意图。
具体实施方式
下面结合附图和实施例对本申请作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本申请，而非对本申请的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本申请相关的部分而非全部结构。
图1是本申请实施例提供的一种大规模可中断负荷的紧急精准控制方法的流程图。本申请实施例提供的大规模可中断负荷的紧急精准控制方法，该方法应用于大规模可中断负荷的紧急精准控制系统，可中断负荷的紧急精准控制系统包括区域控制主站、至少一个控制子站，以及负荷控制终端，其中，区域控制主站与至少一个控制子站连接，每个控制子站与至少一个负荷控制终端连接，参见图1，该方法包括：步骤S101至步骤S104。
在步骤S101中，区域控制主站获取可切负荷量序列表。
其中，可切负荷量序列表包括每个控制子站的每个层级的可切负荷量。
在一实施例中，可切负荷量序列表是区域控制主站接收的每个控制子站上传的每个层级的可切负荷容量信息，可切负荷量序列表包含区域控制主站控制范围内的所有可切负荷容量的集合。
在步骤S102中，区域控制主站获取第一需切负荷量。
在一实施例中，在电网故障情况时，区域控制主站接收上级控制站切负荷命令或执行就地控制策略，根据分配算法分解控制指令，获取到第一需切负荷量。第一需切负荷量是指需要切除的负荷容量。
在步骤S103中，区域控制主站根据第一需切负荷量，在可切负荷量序列表内按层级进行最小欠切匹配，并切除匹配成功的控制子站对应的可切负荷。
在一实施例中，区域控制主站在可切负荷量序列表内计算并整理每层级、每个控制子站的可切负荷容量信息，生成可切子站负荷量序列表。在可切子站负荷序列表内根据第一需切负荷量和最小欠切原则，进行第一需切负荷量与可切子站负荷序列表逐层匹配，若匹配成功，则区域控制主站切除匹配成功的控制子站对应的可切负荷；若匹配失败，则区域控制主站继续根据第一需切负荷量与可切子站负荷序列表逐层匹配，直至匹配成功。
在步骤S104中，若存在第二需切负荷量，区域控制主站则将第二需切负荷量发送至待切除控制子站进行切除负荷处理。
其中，匹配成功的控制子站对应的可切负荷的总量等于第一需切负荷量和第二需切负荷量的差值。
在一实施例中，第二需切负荷量是指区域控制主站根据需切负荷容量，在可切子站负荷量序列表中进行层级匹配后，切除匹配成功的控制子站对应的可切负荷之后，剩余的需切负荷量，该剩余的需切负荷量小于后一个控制子站的可切负荷量。若存在第二需切负荷量，区域控制主站则将第二需切负荷量发送至待切除控制子站，待切除控制子站根据最小欠切原则对待切除控制子站对应的负荷控制终端按层级进行最小欠切匹配及切除负荷处理，实现大规模的分散可中断负荷的紧急精准控制，提高大规模的分散可中断负荷快速性和精确性切除。
本申请实施例提供的大规模可中断负荷的紧急精准控制方法，包括区域控制主站获取可切负荷量序列表，其中，可切负荷量序列表包括每个控制子站的每个层级的可切负荷量；区域控制主站获取第一需切负荷量；区域控制主站根据第一需切负荷量，在可切负荷量序列表内按层级进行最小欠切匹配，并切除匹配成功的控制子站对应的可切负荷；若存在第二需切负荷量，区域控制主站则将第二需切负荷量发送至待切除控制子站进行切除负荷处理，其中，匹配成功的控制子站对应的可切负荷的总量等于第一需切负荷量和第二需切负荷量的差值。本申请实施例提供的大规模可中断负荷的紧急精准控制方法，通过逐层级进行最小欠切匹配可切负荷，实现对可切负荷根据优先级排序精准快速切除，实现了大规模分散的可中断负荷站点的接入，解决了不能准确区分被切除线路上大量可中断负荷和不可中断负荷，以及措施执行后不平衡容量较大，造成大面积停电损失的问题。
在一实施例中，区域控制主站获取可切负荷量序列表，例如可以包括区域 控制主站接收每个控制子站发送的该控制子站的每个层级的可切负荷量，并生成可切负荷量序列表。其中，每个控制子站的每个层级的可切负荷量，是该控制子站接收与该控制子站连接的所有负荷控制终端发送的可切负荷量信息后汇总并计算的，可切负荷量信息包括负荷控制终端下所有的可切负荷分支回路的总功率。
在一实施例中，由负荷控制终端采集可中断负荷分支回路的有功功率，并计算本负荷控制终端的可切负荷总量，并发送至控制子站；控制子站根据层级定值将负荷控制终端分层，计算每层级的可切负荷总量，并分别发送至区域控制主站，区域控制主站接收控制子站每层级的可切负荷容量信息，计算并整理每层级、每个控制子站的可切负荷容量信息，生成可切负荷容量序列表。
在一实施例中，负荷控制终端采集本站可中断负荷分支回路的电压信号、电流信号和开关位置信号，实时计算出可中断分支回路的有功功率。根据每个分支回路的允切状态、投停状态、以及功率方向等条件，实时计算本站可切负荷总量。例如，第一控制子站中的第1个负荷控制终端的可切负荷总量记为P all 11，并将P all 11发送至第一控制子站。
控制子站接收所属的每个负荷控制终端发送的可切负荷量，每个负荷控制终端配置有切负荷顺序的层级定值，该层级定值可整定为自然数，如1、2、3、4……n，数值越小，优先级越高，即越优先被切除。将各负荷控制终端根据层级定值分层统计，实时计算出每个层级的可切负荷量，第一控制子站中第1～n层级的负荷量可以记为：P 1 1,P 2 1,P 3 1......P n 1，并分别上送至区域控制主站。
区域控制主站接收所属的每个控制子站中1～n层级可切负荷容量信息，计算并整理每层级、每个控制子站可切负荷量序列表。
假设区域控制主站下面接入m个控制子站，每个控制子站的负荷分为n个层级，P 11为第一控制子站第1层级的负荷量，P 21为第二控制子站第1层级的负荷量，P 1n为第一控制子站第n层级负荷量，由此类推，P mn为第m控制子站的第n层级负荷量，则区域控制主站的可切负荷量序列表为：
第1层级负荷量为：P 11,P 21,P 31......P m1；
第2层级负荷量为：P 12,P 22,P 32......P m2；
第3层级负荷量为：P 13,P 23,P 33......P m3；
……
第n层级负荷量为：P 1n,P 2n,P 3n......P mn。
可以设置第1层级的优先级高于第2层级的优先级，以此类推，第n层级的优先级最低。
区域控制主站接收上级控制站切负荷容量命令或根据其他控制策略，得出第一需切负荷量P cut0，为了方便区域控制主站切除所属控制子站的可切负荷容量，区域控制主站进一步计算并整理每层级、每个控制子站可切负荷容量信息，生成可切子站负荷序列表。
在一实施例中，可切子站负荷量序列表如下：
P 11，
∑(P 11,P 21)，
∑(P 11,P 21,P 31)，
∑(P 11,P 21,P 31......P m1)，
∑(P 11,P 21,P 31......P m1,P 12)，
∑(P 11,P 21,P 31......P m1,P 12,P 22)，
∑(P 11,P 21,P 31......P m1,P 12,P 22,P 32)
........
若需切负荷容量P cut0在区域控制主站第1层级P 11+P 21与P 11+P 21+P 31之间，即满足∑(P 11,P 21)≤P cut0＜∑(P 11,P 21,P 31)；则直接切除第一控制子站第1层级和第二控制子站第1层级全部负荷，将剩余需切负荷容量记为第二需切负荷量P cut1，则P cut1＝P cut0-∑(P 11,P 21)。
若P cut1＝0，则直接发送指令切除第一控制子站和第二控制子站的第1层级全部负荷，分配结束。
若P cut1>0，则将第二需切负荷量P cut1发送指令给第三控制子站执行。
需要说明的是，本示例中的待切除控制子站即为第三控制子站。
本实施例的大规模可中断负荷的紧急精准控制方法，实现了负荷按层级分配，优先切除需切容量范围内优先级高的层级对应控制子站的可切负荷容量。
图2是本申请实施例提供的另一种大规模可中断负荷的紧急精准控制方法的流程图。参见图2，待切除控制子站对第二需切负荷量进行切除负荷处理，包括：步骤S201、步骤S202和步骤S203。
在步骤S201中，控制子站获取可切终端负荷量序列表。
在一实施例中，由负荷控制终端采集的可中断负荷分支回路的有功功率，并计算得本负荷控制终端的可切负荷总量，并发送至控制子站，控制子站根据 层级定值将负荷控制终端分层，计算每层级的可切负荷总量，并生成可切终端负荷量序列表。
在步骤S202中，待切除控制子站根据第二需切负荷量，在可切终端负荷量序列表内按层级进行最小欠切匹配，并切除匹配成功的负荷控制终端对应的可切负荷。
在一实施例中，待切除控制子站在可切终端负荷量序列表内根据第二需切负荷量和最小欠切原则，进行第二需切负荷量与可切终端负荷量序列表逐层匹配，若匹配成功，则待切除控制子站切除匹配成功的负荷控制终端对应的可切负荷；若匹配失败，则待切除控制子站继续根据第二需切负荷量与可切终端负荷量序列表逐层匹配，直至匹配成功。
在步骤S203中，若存在第三需切负荷量，待切除控制子站则将第三需切负荷量发送至待切除负荷控制终端进行切除负荷处理。
其中，匹配成功的负荷控制终端对应的可切负荷的总量等于第二需切负荷量和第三需切负荷量的差值。
在一实施例中，第三需切负荷量是指待切除控制子站根据需切负荷容量，在可切终端负荷量序列表中进行层级匹配后，切除匹配成功的负荷控制终端对应的可切负荷之后，剩余的需切负荷量，该剩余的需切负荷量小于每个负荷控制终端的可切负荷量。若存在第三需切负荷量，待切除控制子站则将第三需切负荷量发送至待切除负荷控制终端，待切除负荷控制终端根据最小欠切原则对待切除负荷控制终端对应的可中断分支回路进行匹配及切除负荷处理，实现大规模的分散可中断负荷可中断分支回路的精准控制，提高大规模的分散可中断负荷快速性和精确性切除。
在一实施例中，待切除控制子站根据第二需切负荷量P cut1，在可切终端负荷量序列表中按层级进行以终端为基本元素的最小欠切匹配。待切除控制子站。例如，第三控制子站接收上级的区域控制主站的第二需切负荷量P cut1命令，将P cut1作为需切负荷容量在本子站所接入负荷控制终端中进行最小欠切分配。
假设该第三控制子站下面接入(i+j+k)个负荷控制终端，每个负荷控制终端根据可以设定的优先级定值分为n个层级；P 11 3为第三控制子站第1层级负荷第1个负荷控制终端的负荷容量，P 21 3为第三控制子站第1层级负荷第2个负荷控制终端的负荷容量，类推P kn 3为第三控制子站第n层级负荷第k个负荷控制终 端的负荷容量，则第三控制子站的可切终端负荷量序列表为：
设置为第1层级负荷控制终端数量i个，负荷容量为：P 11 3,P 21 3,P 31 3......P i1 3；
设置为第2层级负荷控制终端数量j个，负荷容量为：P 12 3,P 22 3,P 32 3......P j2 3；
……
设置为第n层级负荷控制终端数量k个，负荷容量为：P 1n 3,P 2n 3,P 3n 3......P kn 3。
若第二需切负荷量P cut1在第三控制子站的第1层级P 11 3+P 21 3与P 11 3+P 21 3+P 31 3之间，即满足∑(P 11 3,P 21 3)≤P cut1＜∑(P 11 3,P 21 3,P 31 3)；则直接切除第三控制子站第1层级第一负荷控制终端和第二负荷控制终端的全部负荷，将剩余需切负荷容量记为第三需切负荷量P cut2，则P cut2＝P cut1-∑(P 11 3,P 21 3)。
若P cut2＝0，则直接发送控制指令，切除第三控制子站第1层级的第一负荷控制终端和第二负荷控制终端的全部负荷，分配结束；
若P cut2>0，则将P cut2发送控制指令给第三控制子站第1层级的第三负荷控制终端执行。
需要说明的是，本示例中的待切除负荷控制终端即为第三负荷控制终端，第三需切负荷量即为剩余需切负荷容量P cut2。
本实施例的大规模可中断负荷的紧急精准控制方法，实现了可切负荷容量的终端级的按层级分配切除，优先切除需切容量范围内优先级高的层级对应负荷控制终端的可切负荷容量，精确度高。
图3是本申请实施例提供的又一种大规模可中断负荷的紧急精准控制方法的流程图。参见图3，待切除负荷控制终端对第三需切负荷量进行切除负荷处理，包括：步骤S301和步骤S302。
在步骤S301中，待切除负荷控制终端采用快速排序法将待切除负荷控制终端下所有的可切负荷分支按照优先级由高及低的顺序进行排序整理，生成可切负荷分支序列表。
在一实施例中，负荷控制终端采集本站可中断负荷分支回路的电压信号、电流信号和开关位置信号，实时计算出用户可中断分支回路有功功率。根据每个分支回路的允切状态、投停状态、以及功率方向等条件，实时计算本负荷控制终端可切负荷总量，采用快速排序法，将待切除负荷控制终端下所有的可切负荷分支回路按照优先级由高及低的顺序进行排序整理，生成可切负荷分支序列表。
在步骤S302中，待切除负荷控制终端根据第三需切负荷量，在可切负荷分 支序列表内按层级进行最小欠切匹配，并切除匹配成功的可切负荷分支对应的可切负荷。
在一实施例中，待切除负荷控制终端根据第三需切负荷量，在可切分支回路序列表中进行分路匹配，按最小欠切原则切除对应分路开关。
在一实施例中，待切除控制子站例如第三控制子站所属的第1层级的第三负荷控制终端接收上级切负荷指令，即接收到待切除控制子站切除第三需切负荷容量P cut2命令，第三负荷控制终端将P cut2作为需切负荷容量，在本负荷控制终端所接入的可中断负荷分支回路中进行最小欠切分配。
假设该负荷控制终端接入x个可中断负荷分支回路，将x个负荷分支回路设置为1、2、3、4……(x-1)、x个优先级，分支回路的序号越小，优先级越高，即优先被切除。
采用快速排序法将各分支回路的负荷元件按照优先级由高及低的顺序进行排序整理。
则第三控制终端的可切负荷元素优先序列表可以设置为：
P 1 33,P 2 33,P 3 33......P (x-1) 33,P x 33
根据排序后每个负荷的优先级、可切容量计算每一轮优先级负荷可切总容量，可切分支回路序列表可以设置为：
第1轮可切负荷容量为：P 1 33；
第2轮可切负荷容量为：∑(P 1 33,P 2 33)；
第3轮可切负荷容量为：∑(P 1 33,P 2 33,P 3 33)
……
第x轮可切负荷容量为：∑(P 1 33,P 2 33,P 3 33......P (x-1) 33,P x 33)
其中，P x 33表示第三控制子站的第一层级中第三负荷控制终端的第x轮可切负荷容量，记本负荷控制终端即第三控制子站的第一层级中第三负荷控制终端的总可切负荷量为P all 33，则P all 33＝∑(P 1 33,P 2 33,P 3 33......P (x-1) 33,P x 33)。
根据第三需切负荷量P cut2，按照以最小欠切原则得出需切分支回路y，则待切除负荷控制终端快速切除优先级为1至y的所有分支回路，实现负荷控制容量精确分配。
图4是本申请实施例提供的又一种大规模可中断负荷的紧急精准控制方法 的流程图。参见图4，待切除负荷控制终端切除所属的可中断分支回路过程中生成可切负荷元素优先序列表的选切判断过程如下：
假设M、N为自然数，均表示负荷控制终端根据优先级顺序排序生成序列表后，序列表中可中断分支回路的元件序号；Z为再次判断可切负荷分支回路的序号。
在步骤S401中，切负荷判断开始，令M＝N＝1，第三需切负荷量P cut2>0。
在步骤S402中，判断序列表中第M个元件是否可切，若第M个元件是可切状态，则执行步骤S403；若否则执行步骤S406。
在步骤S403中，判断第三需切负荷量P cut2是否大于第M元件的负荷量P M，若是则执行步骤S407；若否，则执行步骤S404。
在步骤S407中，当第三需切负荷量P cut2大于等于第M元件的负荷量P M时，令P cut2＝P cut2-P M，第M个元件列入需切元件对象集，令N＝M，其中，N为初次判断可切负荷的元件序号，即令初次判断可切负荷元件序号N等于M，执行步骤S406。
在步骤S406中，判断M是否等于元件总数，若是，即第M个可切元件的序号等于元件总数，则执行步骤S415；若否，则执行步骤S405。
在步骤S415中，将第M个元件列入需切元件对象集，切负荷判断结束。
在步骤S405中，令M＝M+1，继续寻找第M个元件的下一个元件，返回步骤S402、判断第M个元件是否可切，若第M个元件不可切，则返回步骤S406。
在步骤S404中，判断当前的控制措施是否为欠切原则。若是，则执行步骤S408。
在步骤S408中，判断N＝1是否成立，其中，N为序列表中第M个元件的前一个元件的序号。若N不等于1，则执行步骤S409。
在步骤S409中，判断第M个元件的优先级是否等于第N个元件的优先级，其中，第N个元件是序列表中第M个元件的前一个元件。若否，则执行步骤S415，将步骤S407中列入需切元件对象集的元件切除，切负荷判断结束。若是，即第M个元件优先级等于第N个元件优先级，将第M个元件和第N个元件的优先级进行捆绑，则执行步骤S410。
在步骤S410中，将第N个元件列入不需切元件对象集，并令Z＝N-1，其中，Z为序列表中第N个元件的前一个元件序号。然后执行步骤S411。
在步骤S411中，判断第Z个元件优先级是否等于第N个元件优先级，若否，即第Z个元件的优先级不等于第N个元件的优先级，则执行步骤S415，将当前列入需切元件对象集的元件切除，切负荷判断结束。若是，即第Z个元件的优先级等于第N个元件的优先级，即将第Z个元件和第N个元件进行捆绑，则执行步骤S412。
在步骤S412中，将第Z个元件列入不需切元件对象集。然后，执行步骤S413。
在步骤S413中，判断Z是否等于1，即第Z个元件是否为序列表中第一个元件，若是，则执行步骤S415，将当前列入需切对象集的元件切除，切负荷判断结束。若否，则执行步骤S414。
在步骤S414中，令Z等于Z-1，并返回步骤S411，依次将优先级相同的元件排除到需切元件对象集之外，最终执行步骤S415，将列入需切对象集的元件切除，切负荷判断全部结束。
需要说明的是，本申请以最小欠切原则进行匹配，在步骤S404中判断当前的控制措施是否为欠切原则时，示例性地只画出为是的情况。
本实施例的大规模可中断负荷的紧急精准控制方法，实现了大规模可中断负荷分支回路按不同层级、不同优先级分配切除，优先切除优先级最高的可中断负荷分支回路，精确度更高、选择性更强。
在一实施例中，区域控制主站与至少一个控制子站可以通过同步数字体系(Synchronous Digital Hierarchy，SDH)骨干传输网2M通道通信；每个控制子站与至少一个负荷控制终端可以通过以下至少之一方式进行通信：通信光缆共享2M通道、同轴电缆独享2M通道、4G专网无线、以太网。
在一实施例中，该可中断负荷的紧急精准控制系统总体上分成三层，即区域控制主站层、至少一个控制子站层、用户负荷控制终端接入层。用户负荷控制终端接入层根据接入的可中断负荷类型，采取多种灵活的通信接入方式。例如方法可以包括：区域控制主站和控制子站之间的2M通道由省际或省级SDH骨干传输网承载，通信系统可以为A套和B套装置提供双设备、双路由的配置条件。区域控制主站下联的通信接口为满足G.703协议的E1接口。控制子站和区域控制主站上联的通信接口为E1接口，和用户负荷控制终端接入层的下联接口为符合STM-1帧结构标准的155M光纤接口。
用户负荷控制终端接入层根据自身管辖可中断负荷的特性差别，采用不同 的方式接入控制子站。每个控制子站的接入规模可满足240户。如果可中断负荷为普通大用户，例如工业用户、大型商业用户、汽车充电站、以及储能电站等，由于用户侧配电站不具备SDH设备，需在用户站点和接入变电站之间建设通信光缆，为负荷控制终端至接入变电站提供光纤通道，再由专用的多用户汇集光电转换装置通过E1接口接入SDH设备，进而和控制子站建立共享2M通道的通信链接。如果可中断负荷为燃煤电厂大型工矿企业辅机系统，由于此类用户一般都具备SDH设备，此类可中断辅机负荷控制终端可直接通过E1接口，采用75欧姆同轴电缆接入就地SDH，跟控制子站建立独享2M通道的通信连接。接入变电站和电厂的通信接口装置应提供互为备用的A通道和B通道的上联端口。对于地理位置比较偏远，难以铺设光纤通道的少数大用户，如果负荷控制终端在4G专网(TD-LTE)覆盖的范围之内，可以采用无线通信接入方式。在用户侧配备一个CPE(客户终端设备)，在TD-LTE核心网交换机处布置多用户接入装置和光电转换模块，其中多用户接入装置上联站内SDH设备E1接口，下联光电转换模块，光电转换模块采用以太网连接至核心网交换机。
本申请实施例提供一种大规模可中断负荷的紧急精准控制系统。图5是本申请实施例提供的一种大规模可中断负荷的紧急精准控制系统的示意图。参见图5，本申请实施例提供的大规模可中断负荷的紧急精准控制系统包括区域控制主站41、控制子站42以及负荷控制终端43；其中，区域控制主站41与至少一个控制子站42连接，每个控制子站42与至少一个负荷控制终端43连接。
区域控制主站41，设置为获取可切负荷量序列表，其中，可切负荷量序列表包括每个所述控制子站的每个层级的可切负荷量；获取第一需切负荷量；根据第一需切负荷量，在可切负荷量序列表内按层级进行最小欠切匹配，并切除匹配成功的控制子站对应的可切负荷；以及若存在第二需切负荷量，则将第二需切负荷量发送至待切除控制子站进行切除负荷处理，其中，匹配成功的控制子站对应的可切负荷的总量等于第一需切负荷量和第二需切负荷量的差值。
在一实施例中，区域控制主站41，还设置为接收每个控制子站发送的该控制子站的每个层级的可切负荷量，并生成可切负荷量序列表。其中，每个控制子站的每个层级的可切负荷量是该控制子站接收与该控制子站连接的所有负荷控制终端发送的可切负荷量信息后汇总并计算的，可切负荷量信息包括负荷控制终端下所有的可切负荷分支回路的总功率。
在一实施例中，控制子站42，设置为获取可切终端负荷量序列表；根据第 二需切负荷量，在可切终端负荷量序列表内按层级进行最小欠切匹配，并切除匹配成功的负荷控制终端对应的可切负荷；以及若存在第三需切负荷量，则将第三需切负荷量发送至待切除负荷控制终端进行切除负荷处理，其中，匹配成功的负荷控制终端对应的可切负荷的总量等于第二需切负荷量和第三需切负荷量的差值。
在一实施例中，负荷控制终端43，设置为采用快速排序法将待切除负荷控制终端下所有的可切负荷分支按照优先级由高及低的顺序进行排序整理，生成可切负荷分支序列表；以及根据第三需切负荷量，在可切负荷分支序列表内按层级进行最小欠切匹配，并切除匹配成功的可切负荷分支对应的负荷。
在一实施例中，区域控制主站41与控制子站42通过SDH骨干传输网2M通道通信；控制子站42与负荷控制终端43通过以下至少之一方式进行通信：通信光缆共享2M通道、同轴电缆独享2M通道、4G专网无线、以太网。
本申请实施例提供的大规模可中断负荷的紧急精准控制系统，包括区域控制主站、控制子站以及负荷控制终端，区域控制主站接收每个控制子站发送的该控制子站的每个层级的可切负荷量，并生成可切负荷量序列表，控制子站逐层级进行最小欠切匹配可切负荷，负荷控制终端对可切负荷进行优先级排序精准快速切除。本申请实施例提供的大规模可中断负荷的紧急精准控制系统，实现了大规模分散的可中断负荷站点的接入以及精准、快速地切负荷，解决了不能准确区分被切除线路上大量可中断负荷和不可中断负荷，以及措施执行后不平衡容量较大，造成大面积停电损失的问题，能够适应电网在发生大扰动情况下，根据需切负荷容量快速切除社会上广泛分布的可中断负荷控制需求，达到控制对象准确、控制容量分配及执行精确、接入负荷站点规模大等效果。
在上述实施例的基础上，本实施例还提供一种计算机可读存储介质，其上存储有计算机程序，当存储介质中的指令由大规模可中断负荷的紧急精准控制系统的处理器执行时，实现本申请上述任意实施例中的大规模可中断负荷的紧急精准控制方法，该方法包括：区域控制主站获取可切负荷量序列表，其中，可切负荷量序列表包括每个控制子站的每个层级的可切负荷量；区域控制主站获取第一需切负荷量；区域控制主站根据第一需切负荷量，在可切负荷量序列表内按层级进行最小欠切匹配，并切除匹配成功的控制子站对应的可切负荷；若存在第二需切负荷量，区域控制主站则将第二需切负荷量发送至待切除控制子站进行切除负荷处理，其中，匹配成功的控制子站对应的可切负荷的总量等 于第一需切负荷量和第二需切负荷量的差值。
当然，本申请实施例所提供的一种包含可执行指令的计算机可读存储介质，其可执行指令不限于如上所述的大规模可中断负荷的紧急精准控制方法操作，还可以执行本申请任意实施例所提供的大规模可中断负荷的紧急精准控制方法中的相关操作，且具备相应的功能和有益效果。
通过以上关于实施方式的描述，所属领域的技术人员可以清楚地了解到，本申请可借助软件及必需的通用硬件来实现，当然也可以通过硬件实现，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该软件产品可以存储在可读存储介质中，如大规模可中断负荷的紧急精准控制系统的只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、闪存(FLASH)等，包括若干指令用以使得一台大规模可中断负荷的紧急精准控制系统设备执行本申请各个实施例所述的大规模可中断负荷的紧急精准控制方法。

Claims (10)

  1. 一种大规模可中断负荷的紧急精准控制方法，应用于大规模可中断负荷的紧急精准控制系统，所述可中断负荷的紧急精准控制系统包括区域控制主站、至少一个控制子站，以及负荷控制终端，其中，所述区域控制主站与所述至少一个控制子站连接，每个所述控制子站与至少一个所述负荷控制终端连接；所述方法包括：
    所述区域控制主站获取可切负荷量序列表，其中，所述可切负荷量序列表包括每个所述控制子站的每个层级的可切负荷量；
    所述区域控制主站获取第一需切负荷量；
    所述区域控制主站根据所述第一需切负荷量，在所述可切负荷量序列表内按层级进行最小欠切匹配，并切除匹配成功的控制子站对应的可切负荷；
    基于确定存在第二需切负荷量，所述区域控制主站将所述第二需切负荷量发送至待切除控制子站进行切除负荷处理，其中，所述匹配成功的控制子站对应的可切负荷的总量等于所述第一需切负荷量和所述第二需切负荷量的差值。
  2. 根据权利要求1所述的方法，其中，所述区域控制主站获取可切负荷量序列表，包括：
    所述区域控制主站接收每个所述控制子站发送的所述控制子站的每个层级的可切负荷量，并生成所述可切负荷量序列表；
    其中，每个所述控制子站的每个层级的可切负荷量是所述控制子站接收与所述控制子站连接的所有负荷控制终端发送的可切负荷量信息后汇总并计算的，所述可切负荷量信息包括所述负荷控制终端下所有的可切负荷分支回路的总功率。
  3. 根据权利要求2所述的方法，其中，所述待切除控制子站对所述第二需切负荷量进行切除负荷处理，包括：
    所述待切除控制子站获取可切终端负荷量序列表；
    所述待切除控制子站根据所述第二需切负荷量，在所述可切终端负荷量序列表内按层级进行最小欠切匹配，并切除匹配成功的负荷控制终端对应的可切负荷；
    基于确定存在第三需切负荷量，所述待切除控制子站将所述第三需切负荷量发送至待切除负荷控制终端进行切除负荷处理，其中，所述匹配成功的负荷控制终端对应的可切负荷的总量等于所述第二需切负荷量和所述第三需切负荷量的差值。
  4. 根据权利要求3所述的方法，其中，所述待切除负荷控制终端对所述第三需切负荷量进行切除负荷处理，包括：
    所述待切除负荷控制终端采用快速排序法将所述待切除负荷控制终端下所有的可切负荷分支按照优先级由高及低的顺序进行排序整理，生成可切负荷分支序列表；
    所述待切除负荷控制终端根据所述第三需切负荷量，在所述可切负荷分支序列表内进行最小欠切匹配，并切除匹配成功的可切负荷分支对应的负荷。
  5. 根据权利要求1-4中任一项所述的方法，其中，所述区域控制主站与所述至少一个控制子站通过同步数字体系SDH骨干传输网2M通道通信；每个所述控制子站与至少一个所述负荷控制终端通过以下至少之一方式进行通信：通信光缆共享2M通道、同轴电缆独享2M通道、4G专网无线、以及以太网。
  6. 一种大规模可中断负荷的紧急精准控制系统，包括：区域控制主站、至少一个控制子站以及负荷控制终端；其中，所述区域控制主站与所述至少一个控制子站连接，每个所述控制子站与至少一个所述负荷控制终端连接；
    所述区域控制主站，设置为获取可切负荷量序列表，其中，所述可切负荷量序列表包括每个所述控制子站的每个层级的可切负荷量；获取第一需切负荷量；根据所述第一需切负荷量，在所述可切负荷量序列表内按层级进行最小欠切匹配，并切除匹配成功的控制子站对应的可切负荷；以及基于确定存在第二需切负荷量，将所述第二需切负荷量发送至待切除控制子站进行切除负荷处理，其中，所述匹配成功的控制子站对应的可切负荷的总量等于所述第一需切负荷量和所述第二需切负荷量的差值。
  7. 根据权利要求6所述的系统，其中，
    所述区域控制主站，还设置为接收每个所述控制子站发送的所述控制子站的每个层级的可切负荷量，并生成所述可切负荷量序列表；
    其中，每个所述控制子站的每个层级的可切负荷量是每个所述控制子站接收与每个所述控制子站连接的所有负荷控制终端发送的可切负荷量信息后汇总并计算的，所述可切负荷量信息包括所述负荷控制终端下所有的可切负荷分支回路的总功率。
  8. 根据权利要求7所述的系统，其中，
    所述控制子站，设置为获取可切终端负荷量序列表；根据所述第二需切负荷量，在所述可切终端负荷量序列表内按层级进行最小欠切匹配，并切除匹配 成功的负荷控制终端对应的可切负荷；以及基于确定存在第三需切负荷量，将所述第三需切负荷量发送至待切除负荷控制终端进行切除负荷处理，其中，所述匹配成功的负荷控制终端对应的可切负荷的总量等于所述第二需切负荷量和所述第三需切负荷量的差值。
  9. 根据权利要求8所述的系统，其中，
    所述负荷控制终端，设置为采用快速排序法将所述待切除负荷控制终端下所有的可切负荷分支按照优先级由高及低的顺序进行排序整理，生成可切负荷分支序列表；以及根据所述第三需切负荷量，在所述可切负荷分支序列表内进行最小欠切匹配，并切除匹配成功的可切负荷分支对应的负荷。
  10. 根据权利要求6-9中任一项所述的系统，其中，所述区域控制主站与所述至少一个控制子站通过SDH骨干传输网2M通道通信；每个所述控制子站与至少一个所述负荷控制终端通过以下至少之一方式进行通信：通信光缆共享2M通道、同轴电缆独享2M通道、4G专网无线、以及以太网。
PCT/CN2019/077323 2019-02-01 2019-03-07 一种大规模可中断负荷的紧急精准控制方法和系统 WO2020155304A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910103398.4 2019-02-01
CN201910103398.4A CN109687471A (zh) 2019-02-01 2019-02-01 一种大规模可中断负荷的紧急精准控制方法和系统

Publications (1)

Publication Number Publication Date
WO2020155304A1 true WO2020155304A1 (zh) 2020-08-06

Family

ID=66194205

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/077323 WO2020155304A1 (zh) 2019-02-01 2019-03-07 一种大规模可中断负荷的紧急精准控制方法和系统

Country Status (3)

Country Link
US (1) US10886740B2 (zh)
CN (1) CN109687471A (zh)
WO (1) WO2020155304A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110829419B (zh) * 2019-11-15 2020-08-18 国网湖南省电力有限公司 基于路由的精准切负荷系统的子站选择方法
CN110838721A (zh) * 2019-11-20 2020-02-25 南方电网科学研究院有限责任公司 配电网功率分配方法、装置、设备及存储介质
CN111697554B (zh) * 2020-05-20 2021-11-05 南方电网科学研究院有限责任公司 一种直流受端电网多直流故障的稳定控制方法及装置
CN113824122B (zh) * 2020-06-19 2024-07-09 国家电网有限公司华东分部 基于源网荷储模型的第三道防线智能调度决策系统及方法
CN112350307B (zh) * 2020-10-28 2022-12-02 中国华电科工集团有限公司 区域配电网的控制方法、控制装置及计算机可读存储介质
CN113595085B (zh) * 2021-08-10 2023-08-22 国网新源控股有限公司 成组控制模式下抽水蓄能电站机组负荷调控方法
CN117543560A (zh) * 2023-11-14 2024-02-09 南京南瑞继保电气有限公司 用于新能源场站的电力线路调切控制方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106877342A (zh) * 2017-03-14 2017-06-20 许继集团有限公司 一种切负荷控制实现方法
CN107134787A (zh) * 2017-06-23 2017-09-05 国网江苏省电力公司电力科学研究院 基于分布式馈线自动化的紧急精准切负荷控制系统和切负荷方法
CN108539750A (zh) * 2018-05-17 2018-09-14 国网山东省电力公司经济技术研究院 一种基于稳控技术的精准负荷控制系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8645933B2 (en) * 2008-08-01 2014-02-04 Leon Schwartz Method and apparatus for detection and optimization of presumably parallel program regions
US10069331B2 (en) * 2015-01-09 2018-09-04 Generac Power Systems, Inc. Load shed module
CN109193618A (zh) * 2018-08-20 2019-01-11 许继集团有限公司 一种精准切负荷控制系统的切负荷方法
CN109687591A (zh) * 2019-02-01 2019-04-26 国网江苏省电力有限公司 一种网荷终端参数处理方法、主站及系统
CN109617834B (zh) * 2019-02-01 2021-08-24 国网江苏省电力有限公司 一种精准切负荷系统及其通信方法、接入装置
CN109889270B (zh) * 2019-02-01 2021-09-10 国网江苏省电力有限公司 一种基于电力无线专网的精准切负荷系统及方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106877342A (zh) * 2017-03-14 2017-06-20 许继集团有限公司 一种切负荷控制实现方法
CN107134787A (zh) * 2017-06-23 2017-09-05 国网江苏省电力公司电力科学研究院 基于分布式馈线自动化的紧急精准切负荷控制系统和切负荷方法
CN108539750A (zh) * 2018-05-17 2018-09-14 国网山东省电力公司经济技术研究院 一种基于稳控技术的精准负荷控制系统及方法

Also Published As

Publication number Publication date
US20200251901A1 (en) 2020-08-06
US10886740B2 (en) 2021-01-05
CN109687471A (zh) 2019-04-26

Similar Documents

Publication Publication Date Title
WO2020155304A1 (zh) 一种大规模可中断负荷的紧急精准控制方法和系统
CN109327323B (zh) 一种新能源并网电力通信网规划和优化方法及系统
CN108539750A (zh) 一种基于稳控技术的精准负荷控制系统及方法
CN110492613B (zh) 一种断面失步解列判别控制系统及方法
CN104362624B (zh) 含分布式电源配电网故障的主网与孤岛恢复同步算法
CN112887207B (zh) 用于电力ip-光通信网络的业务路由分配方法及装置
CN109449934B (zh) 一种基于高压配电网分区重构的输电网阻塞管控方法
CN106027288A (zh) 一种配电线路信息监测业务通信流量预测方法
CN105743108A (zh) 一种具有三相不平衡监测功能的10kV低压智能配电网系统
CN108649578B (zh) 高、中压城网的网架结构调整和组网方式优化方法和装置
CN110601208B (zh) 一种基于多维度负荷属性的精准负荷控制方法及系统
CN107221919B (zh) 一种提高含分布式电源的配电网继电保护可靠性的方法
CN1455488A (zh) 基于多代理的变电站保护测控一体化技术
CN203104104U (zh) 电力信息通信优化骨干传输网系统
CN115459272B (zh) 一种基于馈线开关信息阵的最小配电子网划分方法及系统
CN102185372A (zh) 基于ems的备自投控制模型的生成方法及装置
CN108271216A (zh) 自组网负载均衡方法、装置及云平台容灾系统
CN103490408A (zh) 一种基于电网多回直流协同调制的方法
CN107708124B (zh) Lte230电力系统专网主备核心网稳定性优化方法
CN111064278A (zh) 一种基于边缘物联代理的精准负荷控制业务实现方法
CN110472867A (zh) 配电网网络适配评估处理方法及装置
CN110752577B (zh) 一种快速网络保护系统及在实际电网中的应用方法
CN113224753B (zh) 一种模组化能源控制管理系统
CN109167355A (zh) 一种负荷群控方法与装置
CN110365022A (zh) 一种受端电网环链综合网架方案确定的方法、系统及设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19912869

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19912869

Country of ref document: EP

Kind code of ref document: A1