WO2022148258A1 - 一种用于台区柔性互联系统的运行控制方法及系统 - Google Patents

一种用于台区柔性互联系统的运行控制方法及系统 Download PDF

Info

Publication number
WO2022148258A1
WO2022148258A1 PCT/CN2021/141375 CN2021141375W WO2022148258A1 WO 2022148258 A1 WO2022148258 A1 WO 2022148258A1 CN 2021141375 W CN2021141375 W CN 2021141375W WO 2022148258 A1 WO2022148258 A1 WO 2022148258A1
Authority
WO
WIPO (PCT)
Prior art keywords
control
station
area
station area
sub
Prior art date
Application number
PCT/CN2021/141375
Other languages
English (en)
French (fr)
Inventor
刘海涛
邵瑶
宁昕
徐旖旎
熊雄
季宇
吴鸣
吕广宪
Original Assignee
国网上海能源互联网研究院有限公司
国家电网有限公司
国网上海市电力公司
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 国网上海能源互联网研究院有限公司, 国家电网有限公司, 国网上海市电力公司 filed Critical 国网上海能源互联网研究院有限公司
Publication of WO2022148258A1 publication Critical patent/WO2022148258A1/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
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
    • 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
    • Y04S10/14—Energy storage units
    • 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

Definitions

  • the present application relates to an operation control technology of a power distribution system, and in particular, to an operation control method and system for a flexible interconnection system in a station area.
  • topology reconfiguration and switch combination state switching are mostly used for interconnection and mutual power supply between stations.
  • the bus tie switch between the districts is often in a cold standby state when the system is in normal operation, and its mutual power controllability and load balancing capability are not enough to support the rapid development of the source and load ends in the current station.
  • the embodiments of the present application are expected to provide an operation control method and system for a flexible interconnection system in a station area.
  • an embodiment of the present application provides an operation control method for a station area flexible interconnection system, where the station area flexible interconnection system includes an on-site monitoring master station, a central controller, and a device layer; the method includes:
  • control layer determines the control layer where the station area flexible interconnection system is currently located;
  • the control layer includes an optimal control layer, a unified control layer and an on-site control layer ;
  • the on-site monitoring master station mapped with the optimal control layer determines the current station area flexible interconnection system according to different time scale prediction values.
  • a multi-time-scale optimization instruction of the control plan so that the station-area flexible interconnection system runs to the control target in response to the multi-time-scale optimization instruction;
  • the central controller mapped with the unified control layer collects the state quantities and analog quantities of the equipment layer, and analyzes the state quantities and the analog quantities. performing a logical operation on the quantity to obtain a result of the logical operation, so that based on the result of the logical operation, the operation of the flexible interconnection system in the station area can be controlled in real time;
  • the control device layer mapped with the local control layer performs local side response control in response to the reference voltage and power commands received by the outer loop .
  • control objectives include at least one of the following to meet the preset requirements: load sharing between stations, peak shaving and valley filling, peak-to-peak (Voltage Peak-Peak, VPP), and power supply reliability.
  • the running action includes at least one of the following: a power flow controller start-stop action, a power flow controller cascade coordination action, a system cooperative action, and a system running action.
  • the response control on the local side includes: performing the response control on the local side according to the result of the permutation and combination of the trigger conditions of the station area and the operation mode of the selection control;
  • the station area includes at least two substation areas; the operation modes include: an economical operation mode, a load-balanced operation mode 1, and a balanced-load operation mode 2; the triggering condition of the economical operation mode is: The load rate of each sub-station area in the station area is lower than 60%; the trigger condition of the balanced load operation mode 1 is: the load rate of any sub-station area in the station area is greater than 60%; The triggering condition of the load-balancing operation mode 2 is: the load rate of any sub-station area in the station area is less than 60%; the method includes:
  • the battery in each sub-station area is controlled to be charged and discharged according to the peak-to-valley electricity price at the location of the sub-station area, so that the AC/DC of the corresponding sub-station area is controlled.
  • DC (Alternating Current, AC/Direct Current, DC) converters and DC/DC converters operate in constant power control mode, sharing the energy storage charge and discharge power equally;
  • the sub-station area with a rate greater than 60% is used for load sharing, and the AC/DC converter of any sub-station area is selected from the remaining sub-station area as the voltage source to carry out the constant DC side voltage control mode.
  • the flow converter operates in the constant power control mode;
  • control the remaining sub-station areas in the station area except for the sub-station areas with the load rate less than 60% to combine energy storage to perform load balancing
  • control The AC/DC converter in the substation area with the load factor less than 60% operates as a voltage source in a constant DC side bus voltage control mode
  • the DC/DC converter in the substation area with the load factor less than 60% operates In the constant power control mode, the AC/DC converters of the remaining sub-station areas operate in the constant power control mode.
  • the operation modes further include: power-off transfer operation mode 1, power-off transfer operation mode 2, and shutdown mode;
  • the triggering condition for power-off transfer operation mode 1 is: any location in the station area One of the sub-station areas is powered off;
  • the trigger condition for the power-off to transfer operation mode 2 is: any one of the sub-station areas in the station area is not powered off;
  • the trigger condition for the shutdown mode is: the station area each of said substation zones in the zone is de-energized;
  • the method further includes: in the case of triggering the triggering condition of the power-loss transfer operation mode 1, controlling the remaining sub-station areas in the station area except the power-loss sub-station area to combine energy storage to compensate for the loss of power.
  • the sub-station area of the electricity is supplied with power, and the AC/DC converter of any sub-station area is selected from the remaining sub-station area as a voltage source to operate in the constant DC side bus voltage control mode, and control the any one of the sub-station areas.
  • the DC/DC converter of the sub-platform and another AC/DC converter operate in the constant power control mode, and the AC/DC converter in the sub-platform area that controls the power failure operates in the variable voltage and frequency conversion (Variable Frequency) , VF) control mode; wherein, in the VF control mode, the AC/DC converter of the substation area that is powered off, before supplying power to the lost station area, according to the power loss of the substation area.
  • the load ratio at a moment judges whether to cut off a feeder load;
  • the sub-station area in the station area that is not de-energized is controlled to combine the energy storage to supply power to the sub-station area that is de-energized, and the non-de-energized sub station area is controlled.
  • the AC/DC converter in the substation area that is powered off operates in the constant DC bus voltage control mode as a voltage source, and the DC/DC converter in the substation area that is not powered off operates in the Constant power control mode, the AC/DC converter in the substation area that loses power operates in the VF control mode;
  • the station area flexible interconnection system is controlled to shutdown.
  • the hierarchical control includes: optimal control, unified control and local control, the optimal control maps the station area flexible interconnection system to monitor the master station on site, and the unified control maps the station area The central controller of the flexible interconnection system, the local control maps the equipment layer of the flexible interconnection system of the platform area.
  • an embodiment of the present application also proposes an operation control system for a flexible interconnection system in a station area, including:
  • a determining unit configured to determine the control layer where the station area flexible interconnection system is currently located in the process of layered control of the station area flexible interconnection system; the control layer includes an optimal control layer and a unified control layer and the local control layer;
  • the on-site monitoring master station is used to determine the multiple time scales of the current control plan of the flexible interconnection system in the station area according to the predicted values of different time scales when it is determined that the flexible interconnection system in the current station area is in the optimal control layer an optimization instruction, so that the station-area flexible interconnection system runs to a control target in response to the multi-time-scale optimization instruction;
  • the central controller is used to collect the state quantity and analog quantity of the equipment layer when it is determined that the station area flexible interconnection system is in the unified control layer, and perform logic on the state quantity and the analog quantity operation to obtain the result of the logic operation, so that the operation of the flexible interconnection system in the station area can be controlled in real time based on the result of the logic operation;
  • the device layer is configured to perform local side response control in response to the reference voltage and power commands received by the outer loop when it is determined that the station area flexible interconnection system is in the local control layer.
  • control objectives include at least one of the following to meet preset requirements: load sharing between stations, peak shaving, valley filling, VPP, and power supply reliability.
  • the operation action includes at least one of the following: a power flow controller start-stop action, a power flow controller cascade coordination action, a system cooperative action, and a system running action.
  • the device layer is configured to respond to the reference voltage and power commands received by the outer loop when it is determined that the station area flexible interconnection system is in the local control layer, according to the arrangement and combination of station area trigger conditions The result and the operating mode of the selection control carry out the responsive control of the local side;
  • the station area includes at least two substation areas; the operation modes include: an economical operation mode, a load-balanced operation mode 1, and a balanced-load operation mode 2; the triggering condition of the economical operation mode is: The load rate of each sub-station area in the station area is lower than 60%; the trigger condition of the balanced load operation mode 1 is: the load rate of any sub-station area in the station area is greater than 60%; The triggering condition of the load-balancing operation mode 2 is: the load rate of any sub-station area in the station area is less than 60%;
  • the equipment layer is used to control the battery of each substation area to charge and discharge according to the peak-to-valley electricity price at the location of the station area under the condition of triggering the triggering condition of the economic operation mode, so that the corresponding substation area can be charged and discharged.
  • the AC/DC converters and DC/DC converters are operated in the constant power control mode, and the energy storage charge and discharge power are equally distributed; in the case of triggering the trigger condition of the balanced load operation mode 1, control the station area
  • the remaining sub-station areas are combined with energy storage, and the load-sharing is performed on the sub-station areas with the load rate greater than 60%.
  • the AC/DC converter operates in the constant DC side bus voltage control mode as a voltage source, the DC/DC converter in the substation area with the load factor less than 60% operates in the constant power control mode, and the remaining substations operate in the constant power control mode.
  • the AC/DC converter of the station area operates in the constant power control mode.
  • the operation modes further include: power-off transfer operation mode 1, power-off transfer operation mode 2, and shutdown mode;
  • the triggering condition for power-off transfer operation mode 1 is: any location in the station area One of the sub-station areas is powered off;
  • the trigger condition for the power-off to transfer operation mode 2 is: any one of the sub-station areas in the station area is not powered off;
  • the trigger condition for the shutdown mode is: the station area each of said substation zones in the zone is de-energized;
  • the device layer is configured to control the combined energy storage pair of the remaining sub-station areas in the station area except the sub-station area that is de-energized in the case of triggering the triggering condition of the power-off transfer operation mode 1;
  • the substation area that has lost power is supplied with power, and the AC/DC converter in any substation area is selected from the remaining substation area as a voltage source to operate in the constant DC side bus voltage control mode, and the arbitrary DC side bus voltage control mode is controlled to control the arbitrary substation area.
  • the DC/DC converter of one sub-platform and the other AC/DC converter operate in the constant power control mode, and the AC/DC converter in the sub-station area controlled to lose power operates in the VF control mode; Wherein, in the VF control mode, the AC/DC converter of the substation area that is powered off is judged according to the load rate of the substation area that is powered off at the previous moment before supplying power to the substation area. Whether to cut off a feeder load;
  • the sub-station area in the station area that is not de-energized is controlled to combine the energy storage to supply power to the sub-station area that is de-energized, and the non-de-energized sub station area is controlled.
  • the AC/DC converter in the substation area that is powered off operates in the constant DC bus voltage control mode as a voltage source, and the DC/DC converter in the substation area that is not powered off operates in the In the constant power control mode, the AC/DC converter in the substation area that loses power operates in the VF control mode; in the case of triggering the shutdown mode, the flexible interconnection system in the station area is controlled to shut down .
  • the layered control includes: optimal control, unified control and local control, the optimal control maps the on-site monitoring master station of the station area flexible interconnection system, and the unified control maps the The central controller of the station area flexible interconnection system, the local control maps the equipment layer of the station area flexible interconnection system.
  • the on-site monitoring master station mapped with the optimal control layer will be monitored according to different time periods.
  • the scale prediction value determines the multi-time-scale optimization instruction of the current control plan of the station-area flexible interconnection system, so that the station-area flexible interconnection system responds to the multi-time-scale optimization instruction to run to the control target; when the station-area flexible interconnection system is in the In the case of the unified control layer, the central controller mapped with the unified control layer collects the state quantity and the analog quantity of the device layer, and performs a logical operation on the state quantity and the analog quantity to obtain the result of the logical operation, So that based on the result of the logic operation, the operation of the station area flexible interconnection system can be controlled in real time; when the station area flexible interconnection system is in the on-site control layer, it is mapped with the on-site control layer.
  • the device layer of the device performs local side response control in response to the reference voltage and power commands received by the outer loop. That is, when the station area flexible interconnection system is in different control layers, different control operations are performed through different devices mapped to the control layer. In this way, the station area flexible interconnection system is in a working state during normal operation, and its mutual power is controllable.
  • the capacity and load balancing ability can support the rapid development of the source and load ends in the current station area.
  • FIG. 1 is a schematic flow chart of the implementation of an operation control method for a flexible interconnection system in a station area provided by an embodiment of the present application;
  • FIG. 2 is a geographical diagram of an embodiment of an operation control method for a flexible interconnection system in a station area provided by an embodiment of the present application;
  • FIG. 3 is a system diagram of an embodiment of an operation control method for a station area flexible interconnection system provided by an embodiment of the present application
  • FIG. 4 is a structural diagram of an operation control system for a station area flexible interconnection system according to an embodiment of the present application.
  • the interconnection and mutual supply of multiple stations in the same area can improve the load balancing and energy optimization capabilities of the stations to a certain extent, and relieve the pressure of power grid upgrades.
  • an embodiment of the present application proposes an operation control method for a flexible interconnection system in a station area. As shown in FIG. 1 , the method includes:
  • Step S101 in the process of performing hierarchical control on the station area flexible interconnection system, determine the control layer where the station area flexible interconnection system is currently located;
  • the station area flexible interconnection system includes an on-site monitoring master station, a central controller and an equipment layer;
  • the control layer includes an optimal control layer, a unified control layer and an on-site control layer;
  • determining the control layer that the station area flexible interconnection system is currently located in may be in the process of controlling the station area flexible interconnection system.
  • the control unit in the station area flexible interconnection system determines the control layer where the station area flexible interconnection system is located at the current moment for layered control.
  • the control unit can be an application specific integrated circuit (ASIC), a digital signal processor (Digital Signal Processor, DSP), a digital signal processing device (Digital Signal Processing Device, DSPD), a programmable logic device (Programmable logic device). At least one of Logic Device, PLD), FPGA, central processing unit (Central Processing Unit, CPU), controller, microcontroller, and microprocessor.
  • ASIC application specific integrated circuit
  • DSP Digital Signal Processor
  • DSPD Digital Signal Processing Device
  • DSPD Digital Signal Processing Device
  • PROM programmable logic device
  • the hierarchical control may include: optimal control, unified control and local control.
  • the optimal control maps the on-site monitoring master station of the station area flexible interconnection system
  • the unified control maps the central controller of the station area flexible interconnection system
  • the local control maps all The equipment layer of the flexible interconnection system in the platform area.
  • Step S102 when the station area flexible interconnection system is in the optimal control layer, the on-site monitoring master station mapped with the optimal control layer determines the station area flexibility according to prediction values of different time scales. Multi-time-scale optimization instructions of the current control plan of the interconnection system, so that the station-area flexible interconnection system runs to the control target in response to the multi-time-scale optimization instructions;
  • control objectives include at least one of the following to meet preset requirements: load sharing between stations, peak shaving and valley filling, VPP, and power supply reliability.
  • Step S103 when the station area flexible interconnection system is in the unified control layer, the central controller mapped with the unified control layer collects the state quantity and analog quantity of the equipment layer, and compares the state quantity and the analog quantity.
  • the analog quantity performs a logic operation to obtain a result of the logic operation, so that the operation of the platform area flexible interconnection system can be controlled in real time based on the result of the logic operation;
  • the operation actions include at least one of the following: a start-stop action of a power flow controller, a cascade coordination action of a power flow controller, a system coordination action, and a system running action.
  • Step S104 When the station area flexible interconnection system is in the local control layer, the device layer mapped with the local control layer responds to the reference voltage and power commands received by the outer loop to perform local control. response control.
  • the response control on the local side includes: performing the response control on the local side according to the result of the permutation and combination of trigger conditions of the station area and the operation mode of selection control;
  • the on-site monitoring master station mapped with the optimal control layer will be monitored according to different time periods.
  • the scale prediction value determines the multi-time-scale optimization instruction of the current control plan of the station-area flexible interconnection system, so that the station-area flexible interconnection system responds to the multi-time-scale optimization instruction to run to the control target; when the station-area flexible interconnection system is in the In the case of the unified control layer, the central controller mapped with the unified control layer collects the state quantity and the analog quantity of the device layer, and performs a logical operation on the state quantity and the analog quantity to obtain the result of the logical operation, So that based on the result of the logic operation, the operation of the station area flexible interconnection system can be controlled in real time; when the station area flexible interconnection system is in the on-site control layer, it is mapped with the on-site control layer.
  • the device layer of the device performs local side response control in response to the reference voltage and power commands received by the outer loop. That is, when the station area flexible interconnection system is in different control layers, different control operations are performed through different devices mapped to the control layer. In this way, the station area flexible interconnection system is in a working state during normal operation, and its mutual power is controllable.
  • the capacity and load balancing ability can support the rapid development of the source and load ends in the current station area.
  • the station area includes at least two substation areas; the operation modes include: an economical operation mode, a load-balanced operation mode 1, and a balanced-load operation mode 2; the triggering condition of the economical operation mode is: The load rate of each sub-station area in the station area is lower than 60%; the trigger condition of the balanced load operation mode 1 is: the load rate of any sub-station area in the station area is greater than 60%; The triggering condition of the load-balancing operation mode 2 is: the load rate of any sub-station area in the station area is less than 60%;
  • the battery of each substation is controlled to be charged and discharged according to the peak-to-valley electricity price at the location of the substation, so that the corresponding AC/DC converter of the substation is controlled.
  • the DC/DC converter operates in the constant power control mode, and the energy storage charge and discharge power are equally divided;
  • the sub-station area with a rate greater than 60% is used for load sharing, and the AC/DC converter of any sub-station area is selected from the remaining sub-station area as the voltage source to carry out the constant DC side voltage control mode.
  • the AC/DC converters and DC/DC converters in any sub-station area are selected to operate in the constant power control mode, and the AC/DC converters in the sub-station area whose load rate is greater than 60% are controlled to be converted.
  • the controller operates in the constant power control mode;
  • control the remaining sub-station areas in the station area except for the sub-station areas with the load rate less than 60% to combine energy storage to perform load balancing
  • control The AC/DC converter in the substation area with the load factor less than 60% operates as a voltage source in a constant DC side bus voltage control mode
  • the DC/DC converter in the substation area with the load factor less than 60% operates In the constant power control mode, the AC/DC converters of the remaining substation areas operate in the constant power control mode.
  • the operation modes further include: power-off transfer operation mode 1, power-off transfer operation mode 2, and shutdown mode;
  • the triggering condition for power-off transfer operation mode 1 is: any location in the station area One of the sub-station areas is powered off;
  • the trigger condition for the power-off to transfer operation mode 2 is: any one of the sub-station areas in the station area is not powered off;
  • the trigger condition for the shutdown mode is: the station area each of said substation zones in the zone is de-energized;
  • control the remaining sub-station areas in the station area except the power-loss sub-station area to combine energy storage for the power-loss sub-station area power supply from the remaining sub-station areas, select any AC/DC converter in the sub-station area as the voltage source to operate in the constant DC side bus voltage control mode, and control the DC/DC of the any sub-station area.
  • the converter and another AC/DC converter operate in the constant power control mode, and the AC/DC converters in the substation area that control the power failure operate in the VF control mode;
  • the AC/DC converter in the substation area judges whether to cut off a feeder load according to the load rate of the substation area at the last moment of power loss before supplying power to the lost station area;
  • the sub-station area in the station area that is not de-energized is controlled to combine the energy storage to supply power to the sub-station area that is de-energized, and the non-de-energized sub station area is controlled.
  • the AC/DC converter in the substation area that is powered off operates in the constant DC bus voltage control mode as a voltage source, and the DC/DC converter in the substation area that is not powered off operates in the Constant power control mode, the AC/DC converter in the substation area that loses power operates in the VF control mode;
  • the land flexible interconnection system is controlled to shutdown.
  • the geographical map is shown in Figure 2.
  • the No. 1 station area 201 is connected to more than 20 users (the average load rate is 20%), and the No. 2 station area 202 is connected to more than 200 users. (The average load rate is 54%), and more than 80 users are connected to 203 in the No. 5 station area (the average load rate is 20%).
  • the distance between No. 2 and No. 5 stations is about 150 meters, and No. 1, No. 201 is about 800 meters away from the first two stations.
  • No. 1, 2 and 5 stations are all on-pillar ,
  • the station transformer, switch, concentrator, station transformer terminal, static reactive power compensation device (Static Var Compensator, SVG) are all integrated into the JP cabinet of the distribution transformer integrated distribution cabinet.
  • the substations are all 1 channel 10kV incoming line and 3 channels 400V feeder.
  • the No. 1 substation, the No. 2 substation and the No. 5 substation only use two feeders, leaving one feeder for backup, but the JP cabinet There are only 2 feeder holes;
  • the No. 3 and No. 4 substations have three feeders in use.
  • the 10kV incoming line is equipped with a zero-g switch
  • the 400V low-voltage main incoming line is equipped with a knife switch
  • the outlet side of the No. 3 feeder is equipped with an air switch.
  • the resolution of information collection is 15 minutes.
  • a set of flexible platform interconnection system is constructed between stations 1, 2 and 5 in area 1.
  • the flexible interconnection container 30 contains three 250kW (kilowatt) bidirectional DC/AC converters, each The converter is embedded with AC incoming line switch, and the three stations pass through their respective DC/AC converters and then gather into the DC switch cabinet 301 to form a common DC bus connection.
  • One outgoing line is connected to the energy storage system, and the other two are connected to the fast charging pile for backup.
  • the incoming and outgoing line switches in the DC switch cabinet 301 integrate the fast protection function.
  • the lithium iron phosphate battery has an energy storage capacity of 300kWh (kilowatt hours), and is connected to the DC switch cabinet 301 through a 200kW bidirectional DC/DC converter.
  • a central controller 302 and a set of local monitoring master stations are configured
  • the system 303 is used for real-time monitoring and control of the operation state of the interconnected system in the station area, and at the same time, based on the predicted data, an optimal scheduling instruction is assigned to the interconnected system.
  • a number of auxiliary equipment such as rapid protection, metering, DC screen, and cables are equipped to ensure the normal operation of the flexible interconnected container system.
  • the central controller 302 communicates with the contactors or relays K11, K12, K13, K14, K21, K22, K23, K24, K51, K52, K53 and K54 communicate with each other and realize the three remote functions of remote signaling, telemetry and remote control;
  • the central controller 302 communicates with 3 DC/AC units respectively through RS-485, obtains the state quantity and analog quantity of the converter, and at the same time performs remote control of its control mode and start and stop, and remote measurement of its output power, Realize four remote functions;
  • the central controller 302 communicates with the DC switch cabinet 301 by means of RS-485, obtains the switch status quantities of the DC side incoming and outgoing lines, and at the same time remotely controls it to realize the two-remote function;
  • the central controller 302 communicates with the local monitoring master station 303 through Ethernet.
  • the local monitoring master station 303 obtains the real-time operation information of the flexible interconnection system of the station area from the central controller 302, and on the other hand, the central controller 302 Receive optimization instructions of different time scales from the local master station, and issue each terminal device after verification;
  • the central controller 302 uploads part of the data of the flexible interconnection system in the sub-station area to the main station in the IV area through the wireless mode, after the chip hard encryption and the I-type network management soft encryption.
  • an operation control system 400 for a flexible interconnection system in a station area as shown in FIG. 4 , including:
  • the determining unit 401 is configured to determine the control layer where the station area flexible interconnection system is currently located in the process of performing hierarchical control on the station area flexible interconnection system; the control layer includes an optimal control layer, a unified control layer layer and in-place control layer;
  • the on-site monitoring master station 402 is used to determine the multi-time of the current control plan of the flexible interconnection system in the station area according to the predicted values of different time scales when it is determined that the flexible interconnection system in the station area is in the optimal control layer a scale optimization instruction, so that the station-area flexible interconnection system runs to a control target in response to the multi-time-scale optimization instruction;
  • the central controller 403 is configured to collect the state quantity and analog quantity of the equipment layer when it is determined that the station area flexible interconnection system is in the unified control layer, and perform the state quantity and the analog quantity on the state quantity and the analog quantity. logical operation, to obtain the result of the logical operation, so that the operation of the flexible interconnection system in the station area can be controlled in real time based on the result of the logical operation;
  • the device layer 404 is configured to perform local side response control in response to the reference voltage and power commands received by the outer loop when it is determined that the station area flexible interconnection system is in the local control layer.
  • control objectives include at least one of the following meeting the preset requirements: load sharing between stations, peak shaving and valley filling, VPP, and power supply reliability meeting the preset requirements.
  • the operation action includes at least one of the following: a power flow controller start-stop action, a power flow controller cascade coordination action, a system cooperative action, and a system running action.
  • the device layer 404 is configured to respond to the reference voltage and power commands received by the outer loop and arrange the trigger conditions according to the station area when it is determined that the station area flexible interconnection system is in the local control layer. Combining the result and the operating mode of the selection control to carry out the response control of the local side;
  • the station area includes at least two substation areas; the operation modes include: an economical operation mode, a load-balanced operation mode 1, and a balanced-load operation mode 2; the triggering condition of the economical operation mode is: The load rate of each sub-station area in the station area is lower than 60%; the trigger condition of the balanced load operation mode 1 is: the load rate of any sub-station area in the station area is greater than 60%; The triggering condition of the load-balancing operation mode 2 is: the load rate of any sub-station area in the station area is less than 60%;
  • the device layer 404 is used to control the battery of each substation to charge and discharge according to the peak-to-valley electricity price at the location of the substation under the condition of triggering the triggering condition of the economical operation mode, so that the corresponding substation can be charged and discharged.
  • the AC/DC converters and DC/DC converters in the area are operated in constant power control mode, and the energy storage charge and discharge power are equally distributed; under the condition of triggering the trigger condition of the balanced load operation mode 1, control the station
  • the remaining sub-station areas in the area except the sub-station areas with the load rate greater than 60% are combined with energy storage, and the load-sharing is performed on the sub-station areas with the load rate greater than 60%.
  • the DC converter operates in the constant power control mode, and controls the AC/DC converters in the substation area with a load rate greater than 60% to operate in the constant power control mode; when triggering the balanced load operation mode 2 In the case of a trigger condition, control the remaining sub-station areas in the station area except the sub-station area with the load rate less than 60% to combine energy storage to perform load sharing, and control the sub-station area with the load rate less than 60%.
  • the AC/DC converters in the substation area operate in the constant DC side bus voltage control mode as a voltage source, the DC/DC converters in the substation area with the load factor less than 60% operate in the constant power control mode, and the remaining DC/DC converters operate in the constant power control mode.
  • the AC/DC converters in the substation area operate in the constant power control mode.
  • the operation modes further include: power-off transfer operation mode 1, power-off transfer operation mode 2, and shutdown mode;
  • the triggering condition for power-off transfer operation mode 1 is: any location in the station area One of the sub-station areas is powered off;
  • the trigger condition for the power-off to transfer operation mode 2 is: any one of the sub-station areas in the station area is not powered off;
  • the trigger condition for the shutdown mode is: the station area each of said substation zones in the zone is de-energized;
  • the device layer 404 is used to control the combined energy storage of the remaining sub-station areas in the station area except the sub-station area that has lost power in the case of triggering the triggering condition of the power-loss transfer operation mode 1
  • Supply power to the substation area that has lost power select any AC/DC converter in the substation area from the remaining substation area as a voltage source to operate in a constant DC side bus voltage control mode, and control the The DC/DC converter of any sub-platform and the other AC/DC converter operate in the constant power control mode, and the AC/DC converter in the sub-station area that controls power failure operates in the VF control mode ;
  • the AC/DC converter of the substation area of the power outage before supplying power to the outage station area, according to the load rate of the substation area of the power outage at the previous moment Judge whether to cut off a feeder load;
  • the sub-station area in the station area that is not de-energized is controlled to combine the energy storage to supply power to the sub-station area that is de-energized, and the non-de-energized sub station area is controlled.
  • the AC/DC converter in the substation area that is powered off operates in the constant DC bus voltage control mode as a voltage source, and the DC/DC converter in the substation area that is not powered off operates in the In the constant power control mode, the AC/DC converter in the substation area that loses power operates in the VF control mode; in the case of triggering the shutdown mode, the flexible interconnection system in the station area is controlled to shut down .
  • the layered control includes: optimal control, unified control and local control, the optimal control maps the on-site monitoring master station of the station area flexible interconnection system, and the unified control maps the The central controller of the station area flexible interconnection system, the local control maps the equipment layer of the station area flexible interconnection system.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may employ one or more computer-usable storage media (including, but not limited to, magnetic disk storage, Compact Disc Read-Only Memory (CD-ROM), optical storage, etc.) having computer-usable program code embodied therein. ) in the form of a computer program product implemented on it.
  • the solutions in the embodiments of the present application may be implemented in various computer languages, for example, the object-oriented programming language Java and the literal translation scripting language JavaScript, and the like.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

Abstract

提供一种用于台区柔性互联系统的运行控制方法及系统，该种运行控制方法包括：在对台区柔性互联系统进行分层控制的过程中，确定台区柔性互联系统当前所处的控制层；当台区柔性互联系统处于最优控制层的情况下，与最优控制层映射的就地监控主站根据不同时间尺度预测值确定台区柔性互联系统当前控制计划的多时间尺度优化指令；当台区柔性互联系统处于统一控制层的情况下，与统一控制层映射的中央控制器采集设备层的状态量与模拟量，对状态量及模拟量进行逻辑运算，得到逻辑运算的结果；当台区柔性互联系统处于就地控制层的情况下，与就地控制层映射的设备层响应外环接收的参考电压及功率指令进行就地侧的响应控制。

Description

一种用于台区柔性互联系统的运行控制方法及系统
相关申请的交叉引用
本申请基于申请号为202110015459.9、申请日为2021年01月05日、申请名称为“一种用于台区柔性互联系统的运行控制方法及系统”的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及配电系统运行控制技术，尤其涉及一种用于台区柔性互联系统的运行控制方法及系统。
背景技术
目前针对台区间互联互供电大多采用基于拓扑重构、开关组合状态切换等方法，但在这种传统交流方式进行互联互供过程中，由于交流电网“闭环设计、开环运行”的特征，台区之间的母联开关在系统正常运行时往往处于冷备用状态，其互济功率可控性以及负载均衡能力均不足以支撑当前台区内源、荷两端快速发展的需求。
发明内容
本申请实施例期望提供一种用于台区柔性互联系统的运行控制方法及系统。
一方面，本申请实施例提供了一种用于台区柔性互联系统的运行控制方法，所述台区柔性互联系统包括就地监控主站、中央控制器和设备层；该方法包括：
在对所述台区柔性互联系统进行分层控制的过程中，确定所述台区柔性互联系统当前所处的控制层；所述控制层包括最优控制层、统一控制层和就地控制层；
当所述台区柔性互联系统处于所述最优控制层的情况下，与所述最优控制层映射的所述就地监控主站根据不同时间尺度预测值确定所述台区柔性互联系统当前控制计划的多时间尺度优化指令，以使得所述台区柔性互联系统响应所述多时间尺度优化指令运行至控制目标；
当所述台区柔性互联系统处于所述统一控制层的情况下，与所述统一控制层映射的中央控制器采集所述设备层的状态量与模拟量，对所述状态量及所述模拟量进行逻 辑运算，得到所述逻辑运算的结果，以使得基于所述逻辑运算的结果能够对所述台区柔性互联系统的运行动作进行实时控制；
当所述台区柔性互联系统处于所述就地控制层的情况下，与所述就地控制层映射的所述控制设备层响应外环接收的参考电压及功率指令进行就地侧的响应控制。
在一些实施方式中，所述控制目标包括如下至少一种满足预设要求：台区间均载、削峰填谷、峰峰值(Voltage Peak-Peak，VPP)、供电可靠性。
在一些实施方式中，运行动作包括如下至少一种：潮流控制器启停动作、潮流控制器级联协调动作、系统协同动作、系统运行动作。
在一些实施方式中，就地侧的响应控制，包括：根据台区触发条件的排列组合结果和选择控制的运行模式进行所述就地侧的响应控制；
其中，不同的运行模式映射不同的协同控制策略和不同的顺序控制逻辑。
在一些实施方式中，所述台区包括至少两个子台区；所述运行模式，包括：经济运行模式、均衡负载运行模式1、均衡负载运行模式2；所述经济运行模式的触发条件为：所述台区中每一所述子台区的负载率均低于60％；所述均衡负载运行模式1的触发条件为：所述台区中任意一个子台区的负载率大于60％；所述均衡负载运行模式2的触发条件为：所述台区中任意一个子台区的负载率小于60％；所述方法包括：
在触发所述经济运行模式的触发条件的情况下，控制每一所述子台区的电池根据所述子台区所在地的峰谷电价进行充放电，使对应的所述子台区的交流/直流(Alternating Current，AC/Direct Current，DC)变流器及DC/DC变流器运行在定功率控制模式，均分储能充放电功率；
在触发所述均衡负载运行模式1的触发条件的情况下，控制所述台区中除所述负载率大于60％的子台区之外的剩余的子台区联合储能，对所述负载率大于60％的子台区进行均载，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源进行定直流侧电压控制模式，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器以及DC/DC变流器运行在所述定功率控制模式，控制所述负载率大于60％的子台区的AC/DC变流器运行在所述定功率控制模式；
在触发所述均衡负载运行模式2的触发条件的情况下，控制所述台区中除所述负载率小于60％的子台区之外的剩余的子台区联合储能进行均载，控制所述负载率小于60％的子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，所述负载率小于60％的子台区的DC/DC变流器运行在所述定功率控制模式，所述剩余的子 台区的AC/DC变流器运行在所述定功率控制模式。
在一些实施方式中，所述运行模式，还包括：失电转供运行模式1、失电转供运行模式2和停机模式；所述失电转供运行模式1的触发条件为：所述台区中任意一个所述子台区失电；所述失电转供运行模式2的触发条件为：所述台区中任意一个所述子台区未失电；所述停机模式的触发条件为：所述台区中的每一所述子台区均失电；
所述方法还包括：在触发所述失电转供运行模式1的触发条件的情况下，控制所述台区中除失电的所述子台区之外剩余的子台区联合储能对失电的所述子台区进行供电，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，控制所述任意一个子平台的DC/DC变流器及另一个AC/DC变流器运行在所述定功率控制模式，控制失电的所述子台区AC/DC变流器运行在变压变频(Variable Frequency，VF)控制模式；其中，失电的所述子台区的AC/DC变流器在所述VF控制模式下，在对失电台区进行供电前，根据失电的所述子台区上一时刻的负载率判断是否切除一条馈线负荷；
在触发所述失电转供运行模式2的触发条件的情况下，控制所述台区中未失电的所述子台区联合储能对所述失电的子台区进行供电，所述未失电的所述子台区的AC/DC变流器作为电压源运行在所述定直流母线电压控制模式，所述未失电的所述子台区DC/DC变流器运行在所述定功率控制模式，所述失电的子台区AC/DC变流器运行在所述VF控制模式；
在触发所述停机模式的触发条件的情况下，控制所述台区柔性互联系统停机。
在一些实施方式中，分层控制包括：最优控制、统一控制和就地控制，所述最优控制映射所述台区柔性互联系统就地监控主站，所述统一控制映射所述台区柔性互联系统的中央控制器，所述就地控制映射所述台区柔性互联系统的设备层。
另一方面，本申请实施例还提出了一种用于台区柔性互联系统的运行控制系统，包括：
确定单元，用于在对所述台区柔性互联系统进行分层控制的过程中，确定所述台区柔性互联系统当前所处的控制层；所述控制层包括最优控制层、统一控制层和就地控制层；
就地监控主站，用于在确定所述当台区柔性互联系统处于所述最优控制层的情况下，根据不同时间尺度预测值确定所述台区柔性互联系统当前控制计划的多时间尺度优化指令，以使得所述台区柔性互联系统响应所述多时间尺度优化指令运行至控制目 标；
中央控制器，用于在确定当所述台区柔性互联系统处于所述统一控制层的情况下，采集所述设备层的状态量与模拟量，对所述状态量及所述模拟量进行逻辑运算，得到逻辑运算的结果，以使得基于所述逻辑运算的结果能够对所述台区柔性互联系统的运行动作进行实时控制；
所述设备层，用于在确定所述台区柔性互联系统处于所述就地控制层的情况下，响应外环接收的参考电压及功率指令进行就地侧的响应控制。
在一些实施方式中，所述控制目标包括如下至少一种满足预设要求：台区间均载、削峰填谷、VPP、供电可靠性。
在一些实施方式中，所述运行动作包括如下至少一种：潮流控制器启停动作、潮流控制器级联协调动作、系统协同动作、系统运行动作。
在一些实施方式中，设备层，用于在确定所述台区柔性互联系统处于所述就地控制层的情况下，响应外环接收的参考电压及功率指令，根据台区触发条件的排列组合结果和选择控制的运行模式进行所述就地侧的响应控制；
其中，不同的运行模式映射不同的协同控制策略和不同的顺序控制逻辑。
在一些实施方式中，所述台区包括至少两个子台区；所述运行模式，包括：经济运行模式、均衡负载运行模式1、均衡负载运行模式2；所述经济运行模式的触发条件为：所述台区中每一所述子台区的负载率均低于60％；所述均衡负载运行模式1的触发条件为：所述台区中任意一个子台区的负载率大于60％；所述均衡负载运行模式2的触发条件为：所述台区中任意一个子台区的负载率小于60％；
所述设备层，用于在触发所述经济运行模式的触发条件的情况下，控制每一所数子台区的电池根据台区所在地的峰谷电价进行充放电，使对应的所述子台区的AC/DC变流器及DC/DC变流器运行在定功率控制模式，均分储能充放电功率；在触发所述均衡负载运行模式1的触发条件的情况下，控制所述台区中除所述负载率大于60％的子台区之外的剩余的子台区联合储能，对所述负载率大于60％的子台区进行均载，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源进行定直流侧电压控制模式，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器以及DC/DC变流器运行在所述定功率控制模式，控制所述负载率大于60％的子台区AC/DC变流器运行在所述定功率控制模式；在触发所述均衡负载运行模式2的触发条件的情况下，控制所述台区中除所述负载率小于60％的子台区之外的剩余的子台区联合储能 进行均载，控制所述负载率小于60％的子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，所述负载率小于60％的子台区的DC/DC变流器运行在定功率控制模式，所述剩余的子台区的AC/DC变流器运行在所述定功率控制模式。
在一些实施方式中，所述运行模式，还包括：失电转供运行模式1、失电转供运行模式2和停机模式；所述失电转供运行模式1的触发条件为：所述台区中任意一个所述子台区失电；所述失电转供运行模式2的触发条件为：所述台区中任意一个所述子台区未失电；所述停机模式的触发条件为：所述台区中的每一所述子台区均失电；
所述设备层，用于在触发所述失电转供运行模式1的触发条件的情况下，控制所述台区中除失电的所述子台区之外剩余的子台区联合储能对失电的所述子台区进行供电，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，控制所述任意一个子平台的DC/DC变流器及另一个AC/DC变流器运行在所述定功率控制模式，控制失电的所述子台区的AC/DC变流器运行在VF控制模式；其中，失电的所述子台区的AC/DC变流器在所述VF控制模式下，在对失电台区进行供电前，根据失电的所述子台区上一时刻的负载率判断是否切除一条馈线负荷；
在触发所述失电转供运行模式2的触发条件的情况下，控制所述台区中未失电的所述子台区联合储能对所述失电的子台区进行供电，所述未失电的所述子台区的AC/DC变流器作为电压源运行在所述定直流母线电压控制模式，所述未失电的所述子台区DC/DC变流器运行在所述定功率控制模式，所述失电的子台区AC/DC变流器运行在所述VF控制模式；在触发所述停机模式的触发条件的情况下，控制所述台区柔性互连系统停机。
在一些实施方式中，所述分层控制包括：最优控制、统一控制和就地控制，所述最优控制映射所述台区柔性互联系统就地监控主站，所述统一控制映射所述台区柔性互联系统的中央控制器，所述就地控制映射所述台区柔性互联系统的设备层。
本申请实施例中，通过对台区柔性互联系统进行分层控制，当台区柔性互联系统处于最优控制层的情况下，与所述最优控制层映射的就地监控主站根据不同时间尺度预测值确定所述台区柔性互联系统当前控制计划的多时间尺度优化指令，以使得所述台区柔性互联系统响应所述多时间尺度优化指令运行至控制目标；当台区柔性互联系统处于所述统一控制层的情况下，与统一控制层映射的中央控制器采集所述设备层的状态量与模拟量，对所述状态量及所述模拟量进行逻辑运算，得到逻辑运算的结果，以使得基于所 述逻辑运算的结果能够对所述台区柔性互联系统的运行动作进行实时控制；当台区柔性互联系统处于所述就地控制层的情况下，与所述就地控制层映射的所述设备层响应外环接收的参考电压及功率指令进行就地侧的响应控制。即，当台区柔性互联系统处于不同的控制层时，通过与控制层映射的不同设备进行不同的控制操作，如此，台区柔性互联系统在正常运行时处于工作状态，其互济功率可控性以及负载均衡能力可以支撑当前台区内源、荷两端快速发展的需求。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，这些附图示出了符合本申请的实施例，并与说明书一起用于说明本申请的技术方案。
图1为本申请实施例提供的一种用于台区柔性互联系统的运行控制方法的实现流程示意图；
图2为本申请实施例提供的一种用于台区柔性互联系统的运行控制方法的实施例地理图；
图3为本申请实施例提供的一种用于台区柔性互联系统的运行控制方法实施例的系统图；
图4为本申请实施例提供的一种用于台区柔性互联系统的运行控制系统的结构图。
具体实施方式
现在参考附图介绍本发明的示例性实施方式，然而，本发明可以用许多不同的形式来实施，并且不局限于此处描述的实施例，提供这些实施例是为了详尽地且完全地公开本发明，并且向所属技术领域的技术人员充分传达本发明的范围。对于表示在附图中的示例性实施方式中的术语并不是对本发明的限定。在附图中，相同的单元/元件使用相同的附图标记。
除非另有说明，此处使用的术语(包括科技术语)对所属技术领域的技术人员具有通常的理解含义。另外，可以理解的是，以通常使用的词典限定的术语，应当被理解为与其相关领域的语境具有一致的含义，而不应该被理解为理想化的或过于正式的意义。
大规模分布式光伏的并网接入，配电及以电动汽车、电采暖等电能替代负荷为代表新型负荷的广泛普及，直接影响现有配电台区的电能质量和运行控制，大规模无序接入还将导致配电台区及电源线路容量不足的问题，需投入大量资金进行增容扩建。
另一方面，同一区域内经济结构不一致导致台区负载差距较大的问题，随着政府打造乡村电气化工程推进，接入公变容量逐渐增大，使大量台区存在重载风险而又不能通过增容布点投资来解决，而同一地区也存在负载较轻却未能充分利用容量的台区。
因此，同一区域多个台区间通过互联互供可一定程度提高台区间负荷均衡和能量优化的能力，缓解电网升级改造的压力。
基于上述技术问题，本申请实施例提出了一种用于台区柔性互联系统的运行控制方法，如图1所示，该方法包括：
步骤S101：在对所述台区柔性互联系统进行分层控制的过程中，确定所述台区柔性互联系统当前所处的控制层；
这里，所述台区柔性互联系统包括就地监控主站、中央控制器和设备层；所述控制层包括最优控制层、统一控制层和就地控制层；
在一些可能的实施方式中，在对所述台区柔性互联系统进行分层控制的过程中，确定所述台区柔性互联系统当前所处的控制层，可以是在对所述台区柔性互联系统进行分层控制的过程中，所述台区柔性互联系统中的控制单元确定当前时刻台区柔性互联系统分层控制所处的控制层。
所述控制单元可以是特定用途集成电路(Application Specific Integrated Circuit，ASIC)、数字信号处理器(Digital Signal Processor，DSP)、数字信号处理装置(Digital Signal Processing Device，DSPD)、可编程逻辑装置(Programmable Logic Device，PLD)、FPGA、中央处理器(Central Processing Unit，CPU)、控制器、微控制器、微处理器中的至少一种。
可以理解的是，所述分层控制可以包括：最优控制、统一控制和就地控制。
在一种实施方式中，所述最优控制映射所述台区柔性互联系统就地监控主站，所述统一控制映射所述台区柔性互联系统的中央控制器，所述就地控制映射所述台区柔性互联系统的设备层。
步骤S102：当所述台区柔性互联系统处于所述最优控制层的情况下，与所述最优控制层映射的所述就地监控主站根据不同时间尺度预测值确定所述台区柔性互联系统当前控制计划的多时间尺度优化指令，以使得所述台区柔性互联系统响应所述多时间尺度优化指令运行至控制目标；
在一些可能的实施方式中，控制目标包括如下至少一种满足预设要求：台区间均载、削峰填谷、VPP、供电可靠性。
步骤S103：当所述台区柔性互联系统处于所述统一控制层的情况下，与所述统一控制层映射的中央控制器采集所述设备层的状态量与模拟量，对所述状态量及所述模拟量进行逻辑运算，得到逻辑运算的结果，以使得基于所述逻辑运算的结果能够对所述台区柔性互联系统的运行动作进行实时控制；
在一些可能的实施方式中，所述运行动作包括如下至少一种：潮流控制器启停动作、潮流控制器级联协调动作、系统协同动作、系统运行动作。
步骤S104：当所述台区柔性互联系统处于所述就地控制层的情况下，与所述就地控制层映射的所述设备层响应外环接收的参考电压及功率指令进行就地侧的响应控制。
在一些可能的实施方式中，所述就地侧的响应控制，包括：根据台区触发条件的排列组合结果和选择控制的运行模式进行所述就地侧的响应控制；
其中，不同的运行模式映射不同的协同控制策略和不同的顺序控制逻辑。
本申请实施例中，通过对台区柔性互联系统进行分层控制，当台区柔性互联系统处于最优控制层的情况下，与所述最优控制层映射的就地监控主站根据不同时间尺度预测值确定所述台区柔性互联系统当前控制计划的多时间尺度优化指令，以使得所述台区柔性互联系统响应所述多时间尺度优化指令运行至控制目标；当台区柔性互联系统处于所述统一控制层的情况下，与统一控制层映射的中央控制器采集所述设备层的状态量与模拟量，对所述状态量及所述模拟量进行逻辑运算，得到逻辑运算的结果，以使得基于所述逻辑运算的结果能够对所述台区柔性互联系统的运行动作进行实时控制；当台区柔性互联系统处于所述就地控制层的情况下，与所述就地控制层映射的所述设备层响应外环接收的参考电压及功率指令进行就地侧的响应控制。即，当台区柔性互联系统处于不同的控制层时，通过与控制层映射的不同设备进行不同的控制操作，如此，台区柔性互联系统在正常运行时处于工作状态，其互济功率可控性以及负载均衡能力可以支撑当前台区内源、荷两端快速发展的需求。
在一些实施方式中，所述台区包括至少两个子台区；所述运行模式，包括：经济运行模式、均衡负载运行模式1、均衡负载运行模式2；所述经济运行模式的触发条件为：所述台区中每一所述子台区的负载率均低于60％；所述均衡负载运行模式1的触发条件为：所述台区中任意一个子台区的负载率大于60％；所述均衡负载运行模式2的触发条件为：所述台区中任意一个子台区的负载率小于60％；
在触发所述经济运行模式的触发条件的情况下，控制每一所数子台区的电池根据台区所在地的峰谷电价进行充放电，使对应的所述子台区的AC/DC变流器及DC/DC 变流器运行在定功率控制模式，均分储能充放电功率；
在触发所述均衡负载运行模式1的触发条件的情况下，控制所述台区中除所述负载率大于60％的子台区之外的剩余的子台区联合储能，对所述负载率大于60％的子台区进行均载，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源进行定直流侧电压控制模式，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器以及DC/DC变流器运行在所述定功率控制模式，控制所述负载率大于60％的子台区AC/DC变流器运行在所述定功率控制模式；
在触发所述均衡负载运行模式2的触发条件的情况下，控制所述台区中除所述负载率小于60％的子台区之外的剩余的子台区联合储能进行均载，控制所述负载率小于60％的子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，所述负载率小于60％的子台区的DC/DC变流器运行在定功率控制模式，所述剩余的子台区的AC/DC变流器运行在所述定功率控制模式。
在一些实施方式中，所述运行模式，还包括：失电转供运行模式1、失电转供运行模式2和停机模式；所述失电转供运行模式1的触发条件为：所述台区中任意一个所述子台区失电；所述失电转供运行模式2的触发条件为：所述台区中任意一个所述子台区未失电；所述停机模式的触发条件为：所述台区中的每一所述子台区均失电；
在触发所述失电转供运行模式1的触发条件的情况下，控制所述台区中除失电的所述子台区之外剩余的子台区联合储能对失电的所述子台区进行供电，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，控制所述任意一个子平台的DC/DC变流器及另一个AC/DC变流器运行在所述定功率控制模式，控制失电的所述子台区的AC/DC变流器运行在VF控制模式；其中，失电的所述子台区的AC/DC变流器在所述VF控制模式下，在对失电台区进行供电前，根据失电的所述子台区上一时刻的负载率判断是否切除一条馈线负荷；
在触发所述失电转供运行模式2的触发条件的情况下，控制所述台区中未失电的所述子台区联合储能对所述失电的子台区进行供电，所述未失电的所述子台区的AC/DC变流器作为电压源运行在所述定直流母线电压控制模式，所述未失电的所述子台区DC/DC变流器运行在所述定功率控制模式，所述失电的子台区AC/DC变流器运行在所述VF控制模式；
在触发所述停机模式的触发条件的情况下，控制所述台区柔性互连系统停机。
本申请实施例提出的技术方案，在实时功率控制上具备先进性，同时在实现同等功 能应用前提下，建设成本更低且在高级应用上具备先进性。
下面结合下述实施例对本申请进行进一步说明：
下面以地区1配变台区系统进行说明，地理图如图2所示，1号台区201接入20余户用户(平均负载率20％)、2号台区202接入200余户用户(平均负载率54％)、5号台区203接入80余户用户(平均负载率20％)。
在地理位置上，2号台区202和5号台区距离150米左右，1号台区201距离前两个台区约800米，1号、2号和5号台变均为柱上变，台变、开关、集中器、台变终端、静止式无功补偿装置(Static Var Compensator，SVG)均集成到配电变压器综合配电柜JP柜中。
台变均为1路10kV进线和3路400V馈线，其中1号台变、2号台变和5号台变只用了2路馈线，留有1路馈线备用，但JP柜柜体上只有2个馈线孔；
3号台变和4号台变3路馈线已用，10kV进线配有零克开关，400V低压总进线配有刀闸，3路馈线出口侧配有空开，目前5个台变终端信息采集分辨率均为15分钟。
在地区1的1、2、5号台区间建设的一套柔性台区互联系统，如图3所示，柔性互联集装箱30内包含3台250kW(千瓦)双向DC/AC变流器，每台变流器内嵌交流进线开关，3个台区通过各自DC/AC变流器后汇集到直流开关柜301中，形成共直流母线的接线方式，直流开关柜301为3进3出，3条出线1路接入储能系统、另外2路备用接入快速充电桩，直流开关柜301中各进、出线开关融合了快速保护功能。
磷酸铁锂电池储能容量为300kWh(千瓦时)，通过200kW双向DC/DC变流器接入直流开关柜301中，二次方面，配置1台中央控制器302和1套就地监控主站系统303，用以对台区互联系统运行状态实时监测与管控，同时基于预测数据对互联系统指定优化调度指令。同时，配置若干快速保护、计量、直流屏、电缆等辅助设备，确保柔性互联集装箱系统正常工作。
柔性互联集装箱在内部二次通讯方面：
1)中央控制器302通过RS-485转光纤转RS-485的方式来分别与3个JP柜中接触器或继电器K11、K12、K13、K14、K21、K22、K23、K24、K51、K52、K53、K54进行通讯，实现遥信、遥测、遥控三遥功能；
2)中央控制器302通过RS-485方式与分别与3台DC/AC进行通讯，获取变流器状态量及模拟量，同时对其控制模式及启停进行遥控、对其输出功率进行遥测，实现四遥功能；
3)中央控制器302通过RS-485方式与直流开关柜301进行通讯，获取直流侧进、出线开关状态量，同时对其进行遥控，实现二遥功能；
4)中央控制器302通过以太网的方式与就地监控主站303进行通讯，一方面就地监控主站303从中央控制器302获取台区柔性互联系统实时运行信息，另一方面中央控制器302接收就地主站不同时间尺度的优化指令，校验后下发各终端设备；
5)中央控制器302通过无线方式，并经过芯片硬加密、以及经过I型网管软加密后，将部台区柔性互联系统部分数据上传至Ⅳ区主站。
在上述实施例的基础上，本申请实施例还提出了一种用于台区柔性互联系统的运行控制系统400，如图4所示，包括：
确定单元401，用于在对所述台区柔性互联系统进行分层控制的过程中，确定所述台区柔性互联系统当前所处的控制层；所述控制层包括最优控制层、统一控制层和就地控制层；
就地监控主站402，用于在确定所述当台区柔性互联系统处于所述最优控制层的情况下，根据不同时间尺度预测值确定所述台区柔性互联系统当前控制计划的多时间尺度优化指令，以使得所述台区柔性互联系统响应所述多时间尺度优化指令运行至控制目标；
中央控制器403，用于在确定当所述台区柔性互联系统处于所述统一控制层的情况下，采集所述设备层的状态量与模拟量，对所述状态量及所述模拟量进行逻辑运算，得到逻辑运算的结果，以使得基于所述逻辑运算的结果能够对所述台区柔性互联系统的运行动作进行实时控制；
所述设备层404，用于在确定所述台区柔性互联系统处于所述就地控制层的情况下，响应外环接收的参考电压及功率指令进行就地侧的响应控制。
在一些实施方式中，所述控制目标包括如下至少一种满足预设要求：台区间均载、削峰填谷、VPP、供电可靠性满足预设要求。
在一些实施方式中，所述运行动作包括如下至少一种：潮流控制器启停动作、潮流控制器级联协调动作、系统协同动作、系统运行动作。
在一些实施方式中，设备层404，用于在确定所述台区柔性互联系统处于所述就地控制层的情况下，响应外环接收的参考电压及功率指令，根据台区触发条件的排列组合结果和选择控制的运行模式进行所述就地侧的响应控制；
其中，不同的运行模式映射不同的协同控制策略和不同的顺序控制逻辑。
在一些实施方式中，所述台区包括至少两个子台区；所述运行模式，包括：经济运行模式、均衡负载运行模式1、均衡负载运行模式2；所述经济运行模式的触发条件为：所述台区中每一所述子台区的负载率均低于60％；所述均衡负载运行模式1的触发条件为：所述台区中任意一个子台区的负载率大于60％；所述均衡负载运行模式2的触发条件为：所述台区中任意一个子台区的负载率小于60％；
所述设备层404，用于在触发所述经济运行模式的触发条件的情况下，控制每一所数子台区的电池根据台区所在地的峰谷电价进行充放电，使对应的所述子台区的AC/DC变流器及DC/DC变流器运行在定功率控制模式，均分储能充放电功率；在触发所述均衡负载运行模式1的触发条件的情况下，控制所述台区中除所述负载率大于60％的子台区之外的剩余的子台区联合储能，对所述负载率大于60％的子台区进行均载，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源进行定直流侧电压控制模式，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器以及DC/DC变流器运行在所述定功率控制模式，控制所述负载率大于60％的子台区AC/DC变流器运行在所述定功率控制模式；在触发所述均衡负载运行模式2的触发条件的情况下，控制所述台区中除所述负载率小于60％的子台区之外的剩余的子台区联合储能进行均载，控制所述负载率小于60％的子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，所述负载率小于60％的子台区的DC/DC变流器运行在定功率控制模式，所述剩余的子台区的AC/DC变流器运行在所述定功率控制模式。
在一些实施方式中，所述运行模式，还包括：失电转供运行模式1、失电转供运行模式2和停机模式；所述失电转供运行模式1的触发条件为：所述台区中任意一个所述子台区失电；所述失电转供运行模式2的触发条件为：所述台区中任意一个所述子台区未失电；所述停机模式的触发条件为：所述台区中的每一所述子台区均失电；
所述设备层404，用于在触发所述失电转供运行模式1的触发条件的情况下，控制所述台区中除失电的所述子台区之外剩余的子台区联合储能对失电的所述子台区进行供电，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，控制所述任意一个子平台的DC/DC变流器及另一个AC/DC变流器运行在所述定功率控制模式，控制失电的所述子台区的AC/DC变流器运行在VF控制模式；其中，失电的所述子台区的AC/DC变流器在所述VF控制模式下，在对失电台区进行供电前，根据失电的所述子台区上一时刻的负载率判断是 否切除一条馈线负荷；
在触发所述失电转供运行模式2的触发条件的情况下，控制所述台区中未失电的所述子台区联合储能对所述失电的子台区进行供电，所述未失电的所述子台区的AC/DC变流器作为电压源运行在所述定直流母线电压控制模式，所述未失电的所述子台区DC/DC变流器运行在所述定功率控制模式，所述失电的子台区AC/DC变流器运行在所述VF控制模式；在触发所述停机模式的触发条件的情况下，控制所述台区柔性互连系统停机。
在一些实施方式中，所述分层控制包括：最优控制、统一控制和就地控制，所述最优控制映射所述台区柔性互联系统就地监控主站，所述统一控制映射所述台区柔性互联系统的中央控制器，所述就地控制映射所述台区柔性互联系统的设备层。
本申请实施例的技术方案，在实时功率控制上具备先进性，同时在实现同等功能应用前提下，建设成本更低且在高级应用上具备先进性。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、只读光盘(Compact Disc Read-Only Memory，CD-ROM)、光学存储器等)上实施的计算机程序产品的形式。本申请实施例中的方案可以采用各种计算机语言实现，例如，面向对象的程序设计语言Java和直译式脚本语言JavaScript等。
本申请是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。
上文对各个实施例的描述倾向于强调各个实施例之间的不同之处，其相同或相似之处可以互相参考，为了简洁，本文不再赘述。
本申请所提供的各实施例中所揭露的特征，在不冲突的情况下可以任意组合，得到新的产品实施例。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的实施方式，上述的实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本申请的保护之内。

Claims (14)

  1. 一种用于台区柔性互联系统的运行控制方法，所述台区柔性互联系统包括就地监控主站、中央控制器和设备层；所述方法包括：
    在对所述台区柔性互联系统进行分层控制的过程中，确定所述台区柔性互联系统当前所处的控制层；所述控制层包括最优控制层、统一控制层和就地控制层；
    当所述台区柔性互联系统处于所述最优控制层的情况下，与所述最优控制层映射的所述就地监控主站根据不同时间尺度预测值确定所述台区柔性互联系统当前控制计划的多时间尺度优化指令，以使得所述台区柔性互联系统响应所述多时间尺度优化指令运行至控制目标；
    当所述台区柔性互联系统处于所述统一控制层的情况下，与所述统一控制层映射的所述中央控制器采集所述设备层的状态量与模拟量，对所述状态量及所述模拟量进行逻辑运算，得到所述逻辑运算的结果，以使得基于所述逻辑运算的结果能够对所述台区柔性互联系统的运行动作进行实时控制；
    当所述台区柔性互联系统处于所述就地控制层的情况下，与所述就地控制层映射的所述设备层响应外环接收的参考电压及功率指令进行就地侧的响应控制。
  2. 根据权利要求1所述的方法，其中，所述控制目标包括如下至少一种满足预设要求：台区间均载、削峰填谷、峰峰值VPP、供电可靠性。
  3. 根据权利要求1所述的方法，其中，所述运行动作包括如下至少一种：潮流控制器启停动作、潮流控制器级联协调动作、系统协同动作、系统运行动作。
  4. 根据权利要求1所述的方法，其中，所述就地侧的响应控制，包括：根据台区触发条件的排列组合结果和选择控制的运行模式进行所述就地侧的响应控制；
    其中，不同的运行模式映射不同的协同控制策略和不同的顺序控制逻辑。
  5. 根据权利要求4所述的方法，其中，所述台区包括至少两个子台区；所述运行模式，包括：经济运行模式、均衡负载运行模式1、均衡负载运行模式2；所述经济运行模式的触发条件为：所述台区中每一所述子台区的负载率均低于60％；所述均衡负载运行模式1的触发条件为：所述台区中任意一个子台区的负载率大于60％；所述均衡负载运行模式2的触发条件为：所述台区中任意一个子台区的负载率小于60％；
    所述方法还包括：
    在触发所述经济运行模式的触发条件的情况下，控制每一所述子台区的电池根据 所述子台区所在地的峰谷电价进行充放电，使对应的所述子台区的交流/直流AC/DC变流器及直流/直流DC/DC变流器运行在定功率控制模式，均分储能充放电功率；
    在触发所述均衡负载运行模式1的触发条件的情况下，控制所述台区中除所述负载率大于60％的子台区之外的剩余的子台区联合储能，对所述负载率大于60％的子台区进行均载，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源进行定直流侧电压控制模式，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器以及DC/DC变流器运行在所述定功率控制模式，控制所述负载率大于60％的子台区的AC/DC变流器运行在所述定功率控制模式；
    在触发所述均衡负载运行模式2的触发条件的情况下，控制所述台区中除所述负载率小于60％的子台区之外的剩余的子台区联合储能进行均载，控制所述负载率小于60％的子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，所述负载率小于60％的子台区的DC/DC变流器运行在定功率控制模式，所述剩余的子台区的AC/DC变流器运行在所述定功率控制模式。
  6. 根据权利要求5所述的方法，其中，所述运行模式，还包括：失电转供运行模式1、失电转供运行模式2和停机模式；所述失电转供运行模式1的触发条件为：所述台区中任意一个所述子台区失电；所述失电转供运行模式2的触发条件为：所述台区中任意一个所述子台区未失电；所述停机模式的触发条件为：所述台区中的每一所述子台区均失电；
    所述方法还包括：
    在触发所述失电转供运行模式1的触发条件的情况下，控制所述台区中除失电的所述子台区之外剩余的子台区联合储能对失电的所述子台区进行供电，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，控制所述任意一个子平台的DC/DC变流器及另一个AC/DC变流器运行在所述定功率控制模式，控制失电的所述子台区的AC/DC变流器运行在变压变频VF控制模式；其中，失电的所述子台区的AC/DC变流器在所述VF控制模式下，在对失电的所述子台区进行供电前，根据失电的所述子台区上一时刻的负载率判断是否切除一条馈线负荷；
    在触发所述失电转供运行模式2的触发条件的情况下，控制所述台区中未失电的所述子台区联合储能对所述失电的子台区进行供电，所述未失电的所述子台区的AC/DC变流器作为电压源运行在所述定直流母线电压控制模式，所述未失电的所述子 台区DC/DC变流器运行在所述定功率控制模式，所述失电的子台区的AC/DC变流器运行在所述VF控制模式；
    在触发所述停机模式的触发条件的情况下，控制所述台区柔性互联系统停机。
  7. 根据权利要求1至6任一项所述的方法，其中，所述分层控制包括：最优控制、统一控制和就地控制，所述最优控制映射所述台区柔性互联系统就地监控主站，所述统一控制映射所述台区柔性互联系统的中央控制器，所述就地控制映射所述台区柔性互联系统的设备层。
  8. 一种用于台区柔性互联系统的运行控制系统，所述系统包括：
    确定单元，用于在对所述台区柔性互联系统进行分层控制的过程中，确定所述台区柔性互联系统当前所处的控制层；所述控制层包括最优控制层、统一控制层和就地控制层；
    就地监控主站，用于在确定所述当台区柔性互联系统处于所述最优控制层的情况下，根据不同时间尺度预测值确定所述台区柔性互联系统当前控制计划的多时间尺度优化指令，以使得所述台区柔性互联系统响应所述多时间尺度优化指令运行至控制目标；
    中央控制器，用于在确定当所述台区柔性互联系统处于所述统一控制层的情况下，采集所述设备层的状态量与模拟量，对所述状态量及所述模拟量进行逻辑运算，得到所述逻辑运算的结果，以使得基于所述逻辑运算的结果能够对所述台区柔性互联系统的运行动作进行实时控制；
    所述设备层，用于在确定所述台区柔性互联系统处于所述就地控制层的情况下，响应外环接收的参考电压及功率指令进行就地侧的响应控制。
  9. 根据权利要求8所述的系统，其中，所述控制目标包括如下至少一种满足预设要求：台区间均载、削峰填谷、VPP、供电可靠性。
  10. 根据权利要求8所述的系统，其中，所述运行动作包括如下至少一种：潮流控制器启停动作、潮流控制器级联协调动作、系统协同动作、系统运行动作。
  11. 根据权利要求8所述的系统，其中，所述设备层，用于在确定所述台区柔性互联系统处于所述就地控制层的情况下，响应外环接收的参考电压及功率指令，根据台区触发条件的排列组合结果和选择控制的运行模式进行所述就地侧的响应控制；
    其中，不同的运行模式映射不同的协同控制策略和不同的顺序控制逻辑。
  12. 根据权利要求11所述的系统，其中，所述台区包括至少两个子台区；所述 运行模式，包括：经济运行模式、均衡负载运行模式1、均衡负载运行模式2；所述经济运行模式的触发条件为：所述台区中每一所述子台区的负载率均低于60％；所述均衡负载运行模式1的触发条件为：所述台区中任意一个子台区的负载率大于60％；所述均衡负载运行模式2的触发条件为：所述台区中任意一个子台区的负载率小于60％；
    所述设备层，用于在触发所述经济运行模式的触发条件的情况下，控制每一所述子台区的电池根据台区所在地的峰谷电价进行充放电，使对应的所述子台区的AC/DC变流器及DC/DC变流器运行在定功率控制模式，均分储能充放电功率；在触发所述均衡负载运行模式1的触发条件的情况下，控制所述台区中除所述负载率大于60％的子台区之外的剩余的子台区联合储能，对所述负载率大于60％的子台区进行均载，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源进行定直流侧电压控制模式，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器以及DC/DC变流器运行在所述定功率控制模式，控制所述负载率大于60％的子台区AC/DC变流器运行在所述定功率控制模式；在触发所述均衡负载运行模式2的触发条件的情况下，控制所述台区中除所述负载率小于60％的子台区之外的剩余的子台区联合储能进行均载，控制所述负载率小于60％的子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，所述负载率小于60％的子台区的DC/DC变流器运行在定功率控制模式，所述剩余的子台区的AC/DC变流器运行在所述定功率控制模式。
  13. 根据权利要求12所述的系统，其中，所述运行模式，还包括：失电转供运行模式1、失电转供运行模式2和停机模式；所述失电转供运行模式1的触发条件为：所述台区中任意一个所述子台区失电；所述失电转供运行模式2的触发条件为：所述台区中任意一个所述子台区未失电；所述停机模式的触发条件为：所述台区中的每一所述子台区均失电；
    所述设备层，用于在触发所述失电转供运行模式1的触发条件的情况下，控制所述台区中除失电的所述子台区之外剩余的子台区联合储能对失电的所述子台区进行供电，从所述剩余的子台区中选取任意一个子台区的AC/DC变流器作为电压源运行在定直流侧母线电压控制模式，控制所述任意一个子平台的DC/DC变流器及另一个AC/DC变流器运行在所述定功率控制模式，控制失电的所述子台区的AC/DC变流器运行在VF控制模式；其中，失电的所述子台区的AC/DC变流器在所述VF控制模式下，在对失电的所述子台区进行供电前，根据失电的所述子台区上一时刻的负载率判 断是否切除一条馈线负荷；在触发所述失电转供运行模式2的触发条件的情况下，控制所述台区中未失电的所述子台区联合储能对所述失电的子台区进行供电，所述未失电的所述子台区的AC/DC变流器作为电压源运行在所述定直流母线电压控制模式，所述未失电的所述子台区DC/DC变流器运行在所述定功率控制模式，所述失电的子台区AC/DC变流器运行在所述VF控制模式；在触发所述停机模式的触发条件的情况下，控制所述台区柔性互联系统停机。
  14. 根据权利要求8至13任一项所述的系统，其中，所述分层控制包括：最优控制、统一控制和就地控制，所述最优控制映射所述台区柔性互联系统就地监控主站，所述统一控制映射所述台区柔性互联系统的中央控制器，所述就地控制映射所述台区柔性互联系统的设备层。
PCT/CN2021/141375 2021-01-05 2021-12-24 一种用于台区柔性互联系统的运行控制方法及系统 WO2022148258A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110015459.9A CN112821436A (zh) 2021-01-05 2021-01-05 一种用于台区柔性互联系统的运行控制方法及系统
CN202110015459.9 2021-01-05

Publications (1)

Publication Number Publication Date
WO2022148258A1 true WO2022148258A1 (zh) 2022-07-14

Family

ID=75858043

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/141375 WO2022148258A1 (zh) 2021-01-05 2021-12-24 一种用于台区柔性互联系统的运行控制方法及系统

Country Status (2)

Country Link
CN (1) CN112821436A (zh)
WO (1) WO2022148258A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115800412A (zh) * 2022-12-07 2023-03-14 中国电力科学研究院有限公司 一种台区交直流柔性互动装置、系统及方法
CN116388206A (zh) * 2023-06-07 2023-07-04 国网天津市电力公司滨海供电分公司 变压器n-1故障下的切负荷计算方法、系统及可读介质
CN116404683A (zh) * 2023-06-06 2023-07-07 天津市渤海新能科技有限公司 一种柔直互联系统的能量调控方法、装置、终端和介质
CN116613807A (zh) * 2023-07-20 2023-08-18 国网上海市电力公司 一种配电台区柔性互联系统的暂态稳定性评估方法及系统
CN117691754A (zh) * 2024-02-02 2024-03-12 中国电力科学研究院有限公司 台区层光储充资源边端智能自控方法、系统及电子设备

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112821436A (zh) * 2021-01-05 2021-05-18 国网上海能源互联网研究院有限公司 一种用于台区柔性互联系统的运行控制方法及系统
CN113452027B (zh) * 2021-07-27 2023-04-28 山东鲁软数字科技有限公司智慧能源分公司 一种低压柔直配电台区的能量调度系统及方法
CN113991757B (zh) * 2021-10-29 2024-03-26 国电南瑞科技股份有限公司 无通信下台区低压直流柔性互联功率控制方法、系统、装置及存储介质
CN114336614B (zh) * 2022-01-04 2023-03-28 国网上海能源互联网研究院有限公司 一种用于低压台区柔直互联系统的能量管控方法及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060171329A1 (en) * 2005-01-28 2006-08-03 Jeffrey Ying Control network with data and power distribution
KR101965328B1 (ko) * 2017-11-14 2019-04-03 동신대학교 산학협력단 Dc 나노그리드가 적용된 열 전기 복합 그리드 시스템 및 그 운영 방법
CN110380397A (zh) * 2019-06-18 2019-10-25 天津大学 一种适用于中低压直流配用电系统的控制架构
CN112103991A (zh) * 2020-08-20 2020-12-18 国网浙江省电力有限公司嘉兴供电公司 一种多供区柔性互联系统
CN112821436A (zh) * 2021-01-05 2021-05-18 国网上海能源互联网研究院有限公司 一种用于台区柔性互联系统的运行控制方法及系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060171329A1 (en) * 2005-01-28 2006-08-03 Jeffrey Ying Control network with data and power distribution
KR101965328B1 (ko) * 2017-11-14 2019-04-03 동신대학교 산학협력단 Dc 나노그리드가 적용된 열 전기 복합 그리드 시스템 및 그 운영 방법
CN110380397A (zh) * 2019-06-18 2019-10-25 天津大学 一种适用于中低压直流配用电系统的控制架构
CN112103991A (zh) * 2020-08-20 2020-12-18 国网浙江省电力有限公司嘉兴供电公司 一种多供区柔性互联系统
CN112821436A (zh) * 2021-01-05 2021-05-18 国网上海能源互联网研究院有限公司 一种用于台区柔性互联系统的运行控制方法及系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
XU YINI;LIU HAITAO;XIONG XIONG;JI YU;SHAO YAO;ZHANG HAI;SUN LIJING;WU MING: "Key Technologies and Development Modes of Flexible Interconnection of Low-voltage Distribution Station Area", PROCEEDINGS OF THE CSEE, 12 November 2021 (2021-11-12), pages 3986 - 4001, XP055949380, ISSN: 0258-8013, DOI: 10.13334/j.0258-8013.pcsee.210578 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115800412A (zh) * 2022-12-07 2023-03-14 中国电力科学研究院有限公司 一种台区交直流柔性互动装置、系统及方法
CN115800412B (zh) * 2022-12-07 2024-03-19 中国电力科学研究院有限公司 一种台区交直流柔性互动装置、系统及方法
CN116404683A (zh) * 2023-06-06 2023-07-07 天津市渤海新能科技有限公司 一种柔直互联系统的能量调控方法、装置、终端和介质
CN116404683B (zh) * 2023-06-06 2023-08-29 天津市渤海新能科技有限公司 一种柔直互联系统的能量调控方法、装置、终端和介质
CN116388206A (zh) * 2023-06-07 2023-07-04 国网天津市电力公司滨海供电分公司 变压器n-1故障下的切负荷计算方法、系统及可读介质
CN116388206B (zh) * 2023-06-07 2023-08-18 国网天津市电力公司滨海供电分公司 变压器n-1故障下的切负荷计算方法、系统及可读介质
CN116613807A (zh) * 2023-07-20 2023-08-18 国网上海市电力公司 一种配电台区柔性互联系统的暂态稳定性评估方法及系统
CN116613807B (zh) * 2023-07-20 2023-10-03 国网上海市电力公司 一种配电台区柔性互联系统的暂态稳定性评估方法及系统
CN117691754A (zh) * 2024-02-02 2024-03-12 中国电力科学研究院有限公司 台区层光储充资源边端智能自控方法、系统及电子设备

Also Published As

Publication number Publication date
CN112821436A (zh) 2021-05-18

Similar Documents

Publication Publication Date Title
WO2022148258A1 (zh) 一种用于台区柔性互联系统的运行控制方法及系统
Emmanuel et al. Evolution of dispatchable photovoltaic system integration with the electric power network for smart grid applications: A review
CN103812219B (zh) 一种多储能电站联合远程监控系统
Kim et al. Cooperative control strategy of energy storage system and microsources for stabilizing the microgrid during islanded operation
Mohamed et al. Hierarchical control for DC microgrid clusters with high penetration of distributed energy resources
CN106505551A (zh) 一种基于协调控制装置的光储直流供电系统
CN105406515B (zh) 分级控制的独立微网
CN104638645A (zh) 一种能源互联网及其分级控制系统与控制方法
CN108667147B (zh) 一种含多微电网的柔性中压直流配电中心优化调度方法
CN102916481A (zh) 一种直流微网系统及其能量管理方法
Babaiahgari et al. Coordinated control and dynamic optimization in DC microgrid systems
CN105337306A (zh) 一种光储一体化发电系统
CN105337301A (zh) 微电网并网点的选择方法和装置
Delfanti et al. Smart Grid on field application in the Italian framework: The AS SE. M. project
CN105896550A (zh) 一种智能无功补偿系统的监控方法
Qiao et al. Coordinated control for medium voltage DC distribution centers with flexibly interlinked multiple microgrids
KR20230167348A (ko) 에너지 저장 디바이스 충전에 대한 분산 제어 및 그리드 안정성
CN208423809U (zh) 一种复合储能型双向功率变换装置
CN111030182A (zh) 微网电能监控系统
CN116094032A (zh) 高渗透率光伏接入的配电网云边端协同能量自平衡方法
Zhao et al. Implementation of a dual-microgrid system with flexible configurations and hierarchical control in China
CN113612259A (zh) 一种综合能源站协调控制二次系统及方法
CN110380397A (zh) 一种适用于中低压直流配用电系统的控制架构
Yang et al. Power coordinated control of the islanded multi-layer microgrids
Pinnarelli et al. Optimal management of energy storage systems integrated in nanogrids for virtual “nonsumer” community

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: 21917298

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: 21917298

Country of ref document: EP

Kind code of ref document: A1