CN111799805A - Virtual power plant regulation and control method and device based on 5G technology - Google Patents
Virtual power plant regulation and control method and device based on 5G technology Download PDFInfo
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- 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
- H02J3/144—Demand-response operation of the power transmission or distribution network
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- 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
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- 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
- H02J13/00026—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 involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
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- 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
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- 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
- H02J2213/00—Indexing scheme relating to details of circuit arrangements for providing remote indication of network conditions of for circuit arrangements for providing remote control of switching means in a power distribution network
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—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
Abstract
The invention provides a virtual power plant regulation and control method and device based on a 5G technology, which comprises the following steps: configuring priority according to the power demand of a power grid user and the regulation and control time delay requirement; deploying 5G network slices corresponding to the priority for power grid users in a communication system of the virtual power plant; acquiring load information of each power grid user in the virtual power plant through 5G network slicing; analyzing whether the current power grid is in the peak power utilization period or not according to the load information, and generating a regulation and control instruction by combining the priority of a power grid user if the current power grid is in the peak power utilization period; and issuing a regulation and control instruction through the 5G network slice, and executing load regulation and control operation on a power grid user according to the regulation and control instruction. The transmission rate of the regulation and control instruction issued by the virtual power plant is improved through the 5G communication technology, so that the load problem of a power grid user is solved in time, the high-reliability and low-time-delay transmission function of the regulation and control instruction of the virtual power plant is realized, and the safe operation of the power grid is guaranteed.
Description
Technical Field
The invention belongs to the field of virtual power plant regulation and control, and particularly relates to a virtual power plant regulation and control method and device based on a 5G technology.
Background
The virtual power plant is a voltage coordination management system which combines distributed energy sources, an energy storage system and controllable loads in a power grid through a regulation and control management system and is used for a special power plant to participate in the operation of the power grid. In the process of performing coordination control on the virtual power plant, various acquisition, monitoring and control data need to be transmitted. Due to the fact that the geographic positions of all terminals in an actual power grid are scattered, when a power consumption peak occurs, a regulation and control instruction cannot be issued in time aiming at the load condition of a power grid user due to the communication network problem, and further a power failure risk is caused, and therefore the requirements of a virtual power plant on high reliability and low time delay of a communication network cannot be met by means of a traditional communication technology.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a virtual power plant regulation and control method based on a 5G technology, which comprises the following steps:
configuring priority according to the power demand of a power grid user and the regulation and control time delay requirement;
deploying 5G network slices corresponding to the priority for power grid users in a communication system of the virtual power plant;
acquiring load information of each power grid user in the virtual power plant through 5G network slicing;
analyzing whether the current power grid is in the peak power utilization period or not according to the load information, and generating a regulation and control instruction by combining the priority of a power grid user if the current power grid is in the peak power utilization period;
and issuing a regulation and control instruction through the 5G network slice, and executing load regulation and control operation on a power grid user according to the regulation and control instruction.
Optionally, configuring the priority according to the power demand of the grid user and the regulation and control delay requirement includes:
distributing the highest priority to the grid users who cannot be powered off;
the method comprises the steps of obtaining the regulation and control time delay required by a power grid user capable of being powered off, configuring priorities for the power grid user according to the magnitude of the regulation and control time delay, wherein the smaller the magnitude of the regulation and control time delay, the higher the configured priority, and the same priority is configured for the power grid user with the same magnitude of the regulation and control time delay.
Optionally, the deploying, for a power grid user, a 5G network slice corresponding to a priority in a communication system of the virtual power plant includes:
evaluating the network environment of the power grid user, and judging the capability of the power grid user for building a private power network according to the evaluation result;
if the power grid user has the capacity of self-building the power private network, deploying a 5G network slice corresponding to the priority of the power grid user in a mode of self-building a 5G power private network;
if the power grid user does not have the capacity of self-building the private power grid, the 5G network slice corresponding to the priority of the power grid user is deployed in a mode of renting the public network of an operator.
Optionally, analyzing whether the current power grid is in the peak power utilization period according to the load information, and if the current power grid is in the peak power utilization period, generating a regulation and control instruction by combining with the priority of a power grid user, includes:
obtaining the load amount generated by the current power grid user according to the load information of each power grid user;
when the load is higher than a preset value, judging that the current power grid is in a power utilization peak period;
respectively determining the power grid users with the highest priority and the lowest priority in the power grid users generating the loads;
and generating a load shedding regulation and control instruction for the power grid user with the lowest priority, and generating a time delay reduction regulation and control instruction for the power grid user with the highest priority.
Optionally, the issuing of the regulation and control instruction through the 5G network slice, and the executing of the load regulation and control operation on the power grid user according to the regulation and control instruction include:
according to the regulation and control instruction of load shedding, the power supply of the power grid users with the lowest priority is suspended until the power grid is no longer in the peak period of power utilization, and then the power supply is resumed;
and according to the regulation and control instruction for reducing the time delay, reducing the air interface time delay and the core network time delay of the 5G network slice corresponding to the power grid user with the highest priority.
The invention also provides a virtual power plant regulation and control device based on the 5G technology based on the same idea, which is characterized by comprising the following components:
a configuration unit: the priority is configured according to the power demand of a power grid user and the regulation and control time delay requirement;
a communication unit: the system comprises a virtual power plant, a network interface and a communication interface, wherein the virtual power plant is used for deploying 5G network slices corresponding to priorities for power grid users in a communication system of the virtual power plant;
a collecting unit: the virtual power plant load monitoring system is used for acquiring load information of each power grid user in the virtual power plant through 5G network slicing;
a regulation unit: the power grid management system is used for analyzing whether the current power grid is in the peak power utilization period or not according to the load information, and generating a regulation and control instruction by combining the priority of a power grid user if the current power grid is in the peak power utilization period;
an execution unit: and the system is used for issuing a regulation and control instruction through the 5G network slice and executing load regulation and control operation on a power grid user according to the regulation and control instruction.
Optionally, the configuration unit is specifically configured to:
distributing the highest priority to the grid users who cannot be powered off;
the method comprises the steps of obtaining the regulation and control time delay required by a power grid user capable of being powered off, configuring priorities for the power grid user according to the magnitude of the regulation and control time delay, wherein the smaller the magnitude of the regulation and control time delay, the higher the configured priority, and the same priority is configured for the power grid user with the same magnitude of the regulation and control time delay.
Optionally, the communication unit is specifically configured to:
evaluating the network environment of the power grid user, and judging the capability of the power grid user for building a private power network according to the evaluation result;
if the power grid user has the capacity of self-building the power private network, deploying a 5G network slice corresponding to the priority of the power grid user in a mode of self-building a 5G power private network;
if the power grid user does not have the capacity of self-building the private power grid, the 5G network slice corresponding to the priority of the power grid user is deployed in a mode of renting the public network of an operator.
Optionally, the regulatory unit is specifically configured to:
obtaining the load amount generated by the current power grid user according to the load information of each power grid user;
when the load is higher than a preset value, judging that the current power grid is in a power utilization peak period;
respectively determining the power grid users with the highest priority and the lowest priority in the power grid users generating the loads;
and generating a load shedding regulation and control instruction for the power grid user with the lowest priority, and generating a time delay reduction regulation and control instruction for the power grid user with the highest priority.
Optionally, the execution unit is specifically configured to:
according to the regulation and control instruction of load shedding, the power supply of the power grid users with the lowest priority is suspended until the power grid is no longer in the peak period of power utilization, and then the power supply is resumed;
and according to the regulation and control instruction for reducing the time delay, reducing the air interface time delay and the core network time delay of the 5G network slice corresponding to the power grid user with the highest priority.
The technical scheme provided by the invention has the beneficial effects that:
according to the high-reliability low-delay communication scene in the three 5G application scenes, the advantages of higher transmission rate and lower transmission delay of the 5G communication technology are utilized, and a 5G network slice is adopted to build a communication network. The transmission rate of the regulation and control instruction issued by the virtual power plant is improved through the 5G communication technology, so that the load problem of a power grid user is solved in time, the power failure risk caused by the delay of the regulation and control instruction can be avoided particularly in the peak period of power utilization, the high-reliability low-delay virtual power plant regulation and control instruction transmission function is realized, and the guarantee is provided for the safe operation of a power grid.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a flow chart of a virtual power plant regulation and control method based on 5G technology provided by the invention;
FIG. 2 is an architecture diagram of a virtual power plant;
FIG. 3 is an architecture diagram of a 5G private power grid of a virtual power plant;
fig. 4 is a structural block diagram of a virtual power plant regulation and control device based on the 5G technology.
Detailed Description
To make the structure and advantages of the present invention clearer, the structure of the present invention will be further described with reference to the accompanying drawings.
Example one
As shown in fig. 1, the invention provides a virtual power plant regulation and control method based on a 5G technology, and the regulation and control method comprises the following steps:
s1, configuring priority according to the power demand of the power grid user and the regulation and control time delay requirement;
s2, deploying 5G network slices corresponding to the priority levels for power grid users in a communication system of the virtual power plant;
s3, obtaining load information of each power grid user in the virtual power plant through 5G network slicing;
s4, analyzing whether the current power grid is in the peak period of power utilization according to the load information, and generating a regulation and control instruction by combining the priority of a power grid user if the current power grid is in the peak period of power utilization;
and S5, issuing a regulation and control instruction through the 5G network slice, and executing load regulation and control operation on the power grid user according to the regulation and control instruction.
Because different power grid users have different requirements on power supply reliability, the risk of power failure and fault of the power grid in the peak period of power utilization can be effectively reduced through regulation and control of the virtual power plant. Traditional communication technology often has the not good drawback of service quality because of the technical limitation, and the characteristics of the sliced high reliability low time delay of 5G network, construct virtual electric wire netting communication system, compared with the traditional technology have higher communication capacity of transmission rate, and then satisfy the high quality demand of virtual power plant to the energy, energy storage and load regulation, effectively prevent to rely on traditional communication technology and lead to the fact that virtual power plant gathers load information and issues the untimely condition emergence of regulation and control instruction, especially can avoid causing the power failure risk because of regulation and control instruction delay when the power consumption peak period, provide the guarantee for electric wire netting safe operation.
The 5G network slice is used as a key technology of 5G communication, a physical network of an operator is divided into a plurality of logically independent virtual networks, each virtual network has different functional characteristics, different requirements and services can be flexibly met, the virtual networks are mutually isolated, and when one virtual network fails, other virtual networks cannot be influenced. At present, a mainstream mode is to slice based on a service scene, and the current mode is divided into an Enhanced Mobile Broadband (EMBB) slice, a Massive Machine Type Communication (MMTC) slice, and an Ultra-reliable and Low Latency Communication (URLLC) slice, that is, three major application scenes of a 5G network slice. Network resources are virtualized through a Network Function Virtualization (NFV) technology and a Software Defined Network (SDN), all hardware is abstracted into three types of resources including calculation, storage and a Network for unified management and distribution, the three types of resources are distributed to different slices with different sizes, the three types of resources are completely isolated and do not interfere with one another, and unified management and resource segmentation of 5G Network slices are achieved.
In this embodiment, as shown in fig. 2, the virtual power plant includes a control center, a power generation system, a load control unit, and an energy storage system, and the control center is connected to the power generation system, the load control unit, and the energy storage system through a 5G network slice.
The regulation and control center is responsible for collecting load information of the power generation system, the load control unit and the energy storage system, analyzing the current power load condition of the power grid according to the load information, and issuing a regulation and control command through the 5G network slice. The power generation system is used for new energy power generation including new energy such as wind power and photovoltaic. The load control unit is an interruptible control load, the interruptible control load comprises power utilization units such as user air conditioners and lighting systems, the virtual power plant configures priorities according to power utilization requirements and regulation and control time delay requirements of all power grid users, then a regulation and control instruction of the interruptible control load is determined according to the priorities, and the load control unit regulates and controls the load according to the regulation and control instruction to realize accurate regulation and control of the interruptible control load. The energy storage system is used for compensating the power generation system, and power generation has fluctuation and randomness, so that the abnormal power generation condition can be timely compensated through the energy storage system, and the normal power supply of the whole power grid is effectively prevented from being influenced by the uncontrollable problem of the power generation system.
In this embodiment, the configuring the priority according to the power demand of the grid user and the requirement of the regulation and control delay includes: firstly, whether a power grid user requires power failure is judged, if the power failure does not require power failure, the highest priority is allocated to the power grid user, for example, the highest first priority is set for a non-power-failure production unit such as a hospital and a user signing a constant power supply contract, and reliable power supply is ensured at any time. And then acquiring the regulation and control time delay required by the power grid users allowing power failure, configuring the priority for the power grid users according to the magnitude of the regulation and control time delay, wherein the smaller the magnitude of the regulation and control time delay, the higher the configured priority, and the same priority is configured for the power grid users with the same magnitude of the regulation and control time delay. For example, for a grid user whose regulation delay is required to be in the millisecond level, the grid user is configured to be in the second priority level, for a grid user whose regulation delay is required to be in the millisecond level to the hundred millisecond level, the grid user is configured to be in the third priority level, for a grid user whose regulation delay is required to be more than the hundred millisecond level, the grid user is configured to be in the fourth priority level, and so on. And if the regulation and control time delay requirements of two power grid users are in millisecond level, the two power grid users are the second priority.
The priority is configured according to the power demand of the power grid users and the regulation and control time delay requirement, reasonable management of the power grid users is achieved, loads of different power grid users can be regulated and controlled in a targeted mode, and once the loads are needed, the adjustment and control can be carried out rapidly and in a targeted mode. When the power grid is in a peak of power utilization and power failure can be induced, loads with low priority can be cut off through the load control unit, so that certain uninterruptible production units and users are not affected at all, and reliable power supply service is guaranteed.
In this embodiment, the deploying, in the communication system of the virtual power plant, a 5G network slice corresponding to the priority for the power grid user includes: evaluating the network environment of the power grid user, and judging the capability of the power grid user for building a private power network according to the evaluation result; if the power grid user has the capacity of self-building the power private network, deploying a 5G network slice corresponding to the priority of the power grid user in a mode of self-building a 5G power private network; if the power grid user does not have the capacity of self-building the private power grid, the 5G network slice corresponding to the priority of the power grid user is deployed in a mode of renting the public network of an operator.
As shown in fig. 3, the network architecture of the 5G private power network includes a control center terminal, a power generation system terminal, an energy storage device in an energy storage system, a load control terminal, a 5G base station, and a 5G core network. The power generation system terminal comprises a wind power generation terminal and a photovoltaic power generation terminal. The control center terminal, the wind power generation terminal, the photovoltaic power generation terminal, the energy storage equipment and the load control terminal are in information transmission with the 5G base station through a 5G wireless air interface protocol, and the 5G base station is in information transmission with the 5G core network through a high-speed optical fiber. Meanwhile, based on the existing 5G communication technology, a 5G core network is constructed by adopting an SBA service architecture and an SA independent networking mode. And in consideration of the requirements of load regulation and control of the virtual power plant on time delay and communication reliability, selecting the URLLC network slice to deploy the 5G network, wherein different priorities correspond to different URLLC network slices.
The URLLC network slice can realize high-reliability low-delay communication, different communication services can be provided for power grid users with different priorities in a network slice mode, communication support is further provided for load regulation and control, and on the other hand, due to the characteristics of the network slice, the 5G network in the virtual power plant can be flexibly adjusted, and the deployment is convenient and rapid.
In this embodiment, the analyzing whether the current power grid is in the peak power utilization period according to the load information, and if the current power grid is in the peak power utilization period, generating the regulation and control instruction by combining the priority of the power grid user includes: the control center obtains load information of each power grid user in the virtual power plant through 5G network slicing, and obtains load quantity generated by the current power grid user through the load information of each power grid user. When the load is higher than a certain preset value, the situation shows that the number of the users of the power grid which are using electricity at present is too large, the generated load is too large, and if the load is not regulated and controlled in time, a power failure fault may occur. Therefore, the control center begins to analyze the power grid users with the highest priority and the lowest priority in the power grid users using electricity, generates a control instruction for load shedding for the power grid users with the lowest priority, and generates a control instruction for reducing time delay for the power grid users with the highest priority. And finally, the control center issues the generated control instruction to the load control center through the 5G network slice.
The issuing of the regulation and control instruction through the 5G network slice and the execution of load regulation and control operation on the power grid users according to the regulation and control instruction comprise the following steps: the load control unit controls the power generation system to stop supplying power to the power grid user with the lowest priority according to the regulation and control instruction for cutting the load, cuts off the generated load until the power grid is no longer in the peak period of power utilization, and supplies power to the power grid user again after receiving the power supply recovery instruction from the regulation and control center; according to a regulation and control instruction for reducing time delay, the air interface time delay and the core network time delay of a communication system are reduced, wherein the air interface time delay is reduced by increasing subcarrier intervals and distributing more network resources, the function of the core network facing a user part is further sunk to an access network through an edge computing technology, the original centralized core network becomes distributed, and the function of the core network is closer to a terminal in the geographical position, so that the purpose of reducing the time delay is achieved.
When the power utilization peak period is in, the regulation and control center generates the regulation and control instruction according to the priority of the power grid users, and regulates and controls the excessive loads in time, so that the loads generated by the power grid users with the lowest priority are cut off, and the power supply to the power grid users with the lowest priority is temporarily stopped, thereby relieving the resource shortage in the power utilization peak period, avoiding the power failure fault of the power grid users with the high priority, and simultaneously reducing the risk loss to the minimum because the power grid users with the low priority allow the power failure for a period of time. Meanwhile, time delay is reduced for the power grid users with the highest priority, and the load conditions of the power grid users are acquired in time, so that high-quality power supply service is provided for the power grid users with the highest priority.
The virtual power plant regulation and control method based on the 5G technology is described below with reference to specific examples, which specifically include:
the method comprises the following steps: first, whether the grid user requires the power failure is judged, and the highest first priority is assigned to the power failure grid user A1. Acquiring the regulation and control time delay required by the power grid user allowing power failure, wherein the regulation and control time delay of the power grid user A2 is required to be in the millisecond level, and distributing a second priority to the power grid user A2; the regulation and control time delay requirements of the power grid users A3 and A4 are all within a millisecond to a hundred millisecond, and a third priority is distributed to the power grid users A3 and A4; the regulation and control time delay of the power grid user A5 is required to be more than hundred milliseconds, and a fourth priority is distributed to the power grid user A5.
Step two: evaluating the network environment of the power grid user in the step one, and judging whether the power grid user has the capacity of self-building a private power grid or not according to an evaluation result; if the power grid has the capacity of self-building the power private network, deploying 5G network slices corresponding to the priority of the power grid user in a mode of self-building the 5G power private network; if the power grid does not have the capacity of self-building the private power grid, a 5G network slice corresponding to the priority of the power grid user is deployed in a mode of renting a public network of an operator.
Step three: and the control center acquires the load information of each power grid user in the step one through 5G network slicing.
Step four: the control center knows that the current power grid users A1, A2 and A5 are in the power utilization state through the load information, and judges that the current power grid is in the power utilization peak period when the sum of the loads generated by the power grid users is calculated to be higher than a preset value K, wherein the preset value K is a positive integer. The lowest priority of the current power grid user A5 and the highest priority of the current power grid user A1 are obtained through analysis of the control center, so that a control instruction for load shedding is generated for the power grid user A5, and a control instruction for reducing time delay is generated for the power grid user A1.
Step five: the control center sends the generated control instruction to the load control unit through the 5G network slice, the load control unit controls the power generation system to stop supplying power to the power grid user A5 according to the control instruction, the load generated by the power grid user A5 is cut off, and meanwhile the 5G network slice corresponding to the power grid user A1 is subjected to time delay reduction processing. And after receiving the power supply restoration instruction from the regulation and control center, the load control center controls the power generation system to supply power to the power grid user again.
Example two
As shown in fig. 4, the present invention is based on the same inventive concept, and further provides a virtual power plant regulation and control device 6 based on the 5G technology, including:
the configuration unit 61: the priority is configured according to the power demand of a power grid user and the regulation and control time delay requirement;
the communication unit 62: the system comprises a virtual power plant, a network interface and a communication interface, wherein the virtual power plant is used for deploying 5G network slices corresponding to priorities for power grid users in a communication system of the virtual power plant;
the acquisition unit 63: the virtual power plant load monitoring system is used for acquiring load information of each power grid user in the virtual power plant through 5G network slicing;
the regulation unit 64: the power grid management system is used for analyzing whether the current power grid is in the peak power utilization period or not according to the load information, and generating a regulation and control instruction by combining the priority of a power grid user if the current power grid is in the peak power utilization period;
the execution unit 65: and the system is used for issuing a regulation and control instruction through the 5G network slice and executing load regulation and control operation on a power grid user according to the regulation and control instruction.
Because different power grid users have different requirements on power supply reliability, the risk of power failure and fault of the power grid in the peak period of power utilization can be effectively reduced through regulation and control of the virtual power plant. Traditional communication technology often has the not good drawback of service quality because of the technical limitation, and the characteristics of the sliced high reliability low time delay of 5G network, construct virtual electric wire netting communication system, compared with the traditional technology have higher communication capacity of transmission rate, and then satisfy the high quality demand of virtual power plant to the energy, energy storage and load regulation, effectively prevent to rely on traditional communication technology and lead to the fact that virtual power plant gathers load information and issues the untimely condition emergence of regulation and control instruction, especially can avoid causing the power failure risk because of regulation and control instruction delay when the power consumption peak period, provide the guarantee for electric wire netting safe operation.
In this embodiment, as shown in fig. 2, the virtual power plant includes a control center, a power generation system, a load control unit, and an energy storage system, and the control center is connected to the power generation system, the load control unit, and the energy storage system through a 5G network slice.
The regulation and control center is responsible for collecting load information of the power generation system, the load control unit and the energy storage system, analyzing the current power load condition of the power grid according to the load information, and issuing a regulation and control command through the 5G network slice. The power generation system is used for new energy power generation including new energy such as wind power and photovoltaic. The load control unit is an interruptible control load, the interruptible control load comprises power utilization units such as user air conditioners and lighting systems, the virtual power plant configures priorities according to power utilization requirements and regulation and control time delay requirements of all power grid users, then a regulation and control instruction of the interruptible control load is determined according to the priorities, and the load control unit regulates and controls the load according to the regulation and control instruction to realize accurate regulation and control of the interruptible control load. The energy storage system is used for compensating the power generation system, and power generation has fluctuation and randomness, so that the abnormal power generation condition can be timely compensated through the energy storage system, and the normal power supply of the whole power grid is effectively prevented from being influenced by the uncontrollable problem of the power generation system.
In this embodiment, the configuration unit 61 is specifically configured to: firstly, whether a power grid user requires power failure is judged, if the power failure does not require power failure, the highest priority is allocated to the power grid user, for example, the highest first priority is set for a non-power-failure production unit such as a hospital and a user signing a constant power supply contract, and reliable power supply is ensured at any time. And then acquiring the regulation and control time delay required by the power grid users allowing power failure, configuring the priority for the power grid users according to the magnitude of the regulation and control time delay, wherein the smaller the magnitude of the regulation and control time delay, the higher the configured priority, and the same priority is configured for the power grid users with the same magnitude of the regulation and control time delay. For example, for a grid user whose regulation delay is required to be in the millisecond level, the grid user is configured to be in the second priority level, for a grid user whose regulation delay is required to be in the millisecond level to the hundred millisecond level, the grid user is configured to be in the third priority level, for a grid user whose regulation delay is required to be more than the hundred millisecond level, the grid user is configured to be in the fourth priority level, and so on. And if the regulation and control time delay requirements of two power grid users are in millisecond level, the two power grid users are the second priority.
The priority is configured according to the power demand of the power grid users and the regulation and control time delay requirement, reasonable management of the power grid users is achieved, loads of different power grid users can be regulated and controlled in a targeted mode, and once the loads are needed, the adjustment and control can be carried out rapidly and in a targeted mode. When the power grid is in a peak of power utilization and power failure can be induced, loads with low priority can be cut off through the load control unit, so that certain uninterruptible production units and users are not affected at all, and reliable power supply service is guaranteed.
In the present embodiment, the communication unit 62. The method is specifically used for: evaluating the network environment of the power grid user, and judging whether the power grid user has the capacity of self-building a private power grid or not according to the evaluation result; if the power grid has the capacity of self-building the power private network, deploying 5G network slices corresponding to the priority of the power grid user in a mode of self-building the 5G power private network; if the power grid does not have the capacity of self-building the private power grid, a 5G network slice corresponding to the priority of the power grid user is deployed in a mode of renting a public network of an operator.
As shown in fig. 3, the network architecture of the 5G private power network includes a control center terminal, a power generation system terminal, an energy storage device in an energy storage system, a load control terminal, a 5G base station, and a 5G core network. The power generation system terminal comprises a wind power generation terminal and a photovoltaic power generation terminal. The control center terminal, the wind power generation terminal, the photovoltaic power generation terminal, the energy storage equipment and the load control terminal are in information transmission with the 5G base station through a 5G wireless air interface protocol, and the 5G base station is in information transmission with the 5G core network through a high-speed optical fiber. Meanwhile, based on the existing 5G communication technology, a 5G core network is constructed by adopting an SBA service architecture and an SA independent networking mode. Considering the requirements of load regulation and control of a virtual power plant on time delay and communication reliability, a high-reliability and Low-Latency communication (URLLC) network slice is selected to deploy a 5G network, and different priorities correspond to different URLLC network slices.
The URLLC network slice can realize high-reliability low-delay communication, different communication services can be provided for power grid users with different priorities in a network slice mode, communication support is further provided for load regulation and control, and on the other hand, due to the characteristics of the network slice, the 5G network in the virtual power plant can be flexibly adjusted, and the deployment is convenient and rapid.
In this embodiment, the adjusting and controlling unit 64 is specifically configured to: the control center obtains load information of each power grid user in the virtual power plant through 5G network slicing, and obtains load quantity generated by the current power grid user through the load information of each power grid user. When the load is higher than a certain preset value, the situation shows that the number of the users of the power grid which are using electricity at present is too large, the generated load is too large, and if the load is not regulated and controlled in time, a power failure fault may occur. Therefore, the control center begins to analyze the power grid users with the highest priority and the lowest priority in the power grid users using electricity, generates a control instruction for load shedding for the power grid users with the lowest priority, and generates a control instruction for reducing time delay for the power grid users with the highest priority. And finally, the control center issues the generated control instruction to the load control center through the 5G network slice.
The execution unit 65 is specifically configured to: the load control unit controls the power generation system to stop supplying power to the power grid user with the lowest priority according to the regulation and control instruction for cutting the load, cuts off the generated load until the power grid is no longer in the peak period of power utilization, and supplies power to the power grid user again after receiving the power supply recovery instruction from the regulation and control center; according to a regulation and control instruction for reducing time delay, the air interface time delay and the core network time delay of a communication system are reduced, wherein the air interface time delay is reduced by increasing subcarrier intervals and distributing more network resources, the function of the core network facing a user part is further sunk to an access network through an edge computing technology, the original centralized core network becomes distributed, and the function of the core network is closer to a terminal in the geographical position, so that the purpose of reducing the time delay is achieved.
When the power utilization peak period is in, the regulation and control center generates the regulation and control instruction according to the priority of the power grid users, and regulates and controls the excessive loads in time, so that the loads generated by the power grid users with the lowest priority are cut off, and the power supply to the power grid users with the lowest priority is temporarily stopped, thereby relieving the resource shortage in the power utilization peak period, avoiding the power failure fault of the power grid users with the high priority, and simultaneously reducing the risk loss to the minimum because the power grid users with the low priority allow the power failure for a period of time. Meanwhile, time delay is reduced for the power grid users with the highest priority, and the load conditions of the power grid users are acquired in time, so that high-quality power supply service is provided for the power grid users with the highest priority.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or 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 take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. A virtual power plant regulation and control method based on a 5G technology is characterized by comprising the following steps:
configuring priority according to the power demand of a power grid user and the regulation and control time delay requirement;
deploying 5G network slices corresponding to the priority for power grid users in a communication system of the virtual power plant;
acquiring load information of each power grid user in the virtual power plant through 5G network slicing;
analyzing whether the current power grid is in the peak power utilization period or not according to the load information, and generating a regulation and control instruction by combining the priority of a power grid user if the current power grid is in the peak power utilization period;
and issuing a regulation and control instruction through the 5G network slice, and executing load regulation and control operation on a power grid user according to the regulation and control instruction.
2. The virtual power plant regulation and control method based on the 5G technology as claimed in claim 1, wherein the configuring of the priority according to the power demand of the grid user and the regulation and control delay requirement comprises:
distributing the highest priority to the grid users who cannot be powered off;
the method comprises the steps of obtaining the regulation and control time delay required by a power grid user capable of being powered off, configuring priorities for the power grid user according to the magnitude of the regulation and control time delay, wherein the smaller the magnitude of the regulation and control time delay, the higher the configured priority, and the same priority is configured for the power grid user with the same magnitude of the regulation and control time delay.
3. The virtual power plant regulation and control method based on the 5G technology as claimed in claim 1, wherein deploying 5G network slices corresponding to priorities for power grid users in a communication system of the virtual power plant comprises:
evaluating the network environment of the power grid user, and judging the capability of the power grid user for building a private power network according to the evaluation result;
if the power grid user has the capacity of self-building the power private network, deploying a 5G network slice corresponding to the priority of the power grid user in a mode of self-building a 5G power private network;
if the power grid user does not have the capacity of self-building the private power grid, the 5G network slice corresponding to the priority of the power grid user is deployed in a mode of renting the public network of an operator.
4. The virtual power plant regulation and control method based on the 5G technology as claimed in claim 1, wherein the analyzing whether the current power grid is in the peak power utilization period or not according to the load information, and if the current power grid is in the peak power utilization period, generating the regulation and control instruction by combining the priority of the power grid user comprises:
obtaining the load amount generated by the current power grid user according to the load information of each power grid user;
when the load is higher than a preset value, judging that the current power grid is in a power utilization peak period;
respectively determining the power grid users with the highest priority and the lowest priority in the power grid users generating the loads;
and generating a load shedding regulation and control instruction for the power grid user with the lowest priority, and generating a time delay reduction regulation and control instruction for the power grid user with the highest priority.
5. The virtual power plant regulation and control method based on the 5G technology as claimed in claim 4, wherein the issuing of the regulation and control instruction through the 5G network slice, and the performing of the load regulation and control operation on the power grid user according to the regulation and control instruction comprises:
according to the regulation and control instruction of load shedding, the power supply of the power grid users with the lowest priority is suspended until the power grid is no longer in the peak period of power utilization, and then the power supply is resumed;
and according to the regulation and control instruction for reducing the time delay, reducing the air interface time delay and the core network time delay of the 5G network slice corresponding to the power grid user with the highest priority.
6. The utility model provides a virtual power plant's regulation and control device based on 5G technique which characterized in that, regulation and control device includes:
a configuration unit: the priority is configured according to the power demand of a power grid user and the regulation and control time delay requirement;
a communication unit: the system comprises a virtual power plant, a network interface and a communication interface, wherein the virtual power plant is used for deploying 5G network slices corresponding to priorities for power grid users in a communication system of the virtual power plant;
a collecting unit: the virtual power plant load monitoring system is used for acquiring load information of each power grid user in the virtual power plant through 5G network slicing;
a regulation unit: the power grid management system is used for analyzing whether the current power grid is in the peak power utilization period or not according to the load information, and generating a regulation and control instruction by combining the priority of a power grid user if the current power grid is in the peak power utilization period;
an execution unit: and the system is used for issuing a regulation and control instruction through the 5G network slice and executing load regulation and control operation on a power grid user according to the regulation and control instruction.
7. The virtual power plant regulation device based on 5G technology of claim 6, wherein the configuration unit is specifically configured to:
distributing the highest priority to the grid users who cannot be powered off;
the method comprises the steps of obtaining the regulation and control time delay required by a power grid user capable of being powered off, configuring priorities for the power grid user according to the magnitude of the regulation and control time delay, wherein the smaller the magnitude of the regulation and control time delay, the higher the configured priority, and the same priority is configured for the power grid user with the same magnitude of the regulation and control time delay.
8. The virtual power plant regulation device based on 5G technology of claim 6, wherein the communication unit is specifically configured to:
evaluating the network environment of the power grid user, and judging the capability of the power grid user for building a private power network according to the evaluation result;
if the power grid user has the capacity of self-building the power private network, deploying a 5G network slice corresponding to the priority of the power grid user in a mode of self-building a 5G power private network;
if the power grid user does not have the capacity of self-building the private power grid, the 5G network slice corresponding to the priority of the power grid user is deployed in a mode of renting the public network of an operator.
9. The virtual power plant regulation device based on 5G technology of claim 6, wherein the regulation unit is specifically configured to:
obtaining the load amount generated by the current power grid user according to the load information of each power grid user;
when the load is higher than a preset value, judging that the current power grid is in a power utilization peak period;
respectively determining the power grid users with the highest priority and the lowest priority in the power grid users generating the loads;
and generating a load shedding regulation and control instruction for the power grid user with the lowest priority, and generating a time delay reduction regulation and control instruction for the power grid user with the highest priority.
10. The virtual power plant regulation and control device based on 5G technology of claim 9, wherein the execution unit is specifically configured to:
according to the regulation and control instruction of load shedding, the power supply of the power grid users with the lowest priority is suspended until the power grid is no longer in the peak period of power utilization, and then the power supply is resumed;
and according to the regulation and control instruction for reducing the time delay, reducing the air interface time delay and the core network time delay of the 5G network slice corresponding to the power grid user with the highest priority.
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