CN113054675A - Power demand response method, system, device and medium - Google Patents

Power demand response method, system, device and medium Download PDF

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Publication number
CN113054675A
CN113054675A CN202110277798.4A CN202110277798A CN113054675A CN 113054675 A CN113054675 A CN 113054675A CN 202110277798 A CN202110277798 A CN 202110277798A CN 113054675 A CN113054675 A CN 113054675A
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response
power
node
power supply
demand
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CN113054675B (en
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王晨薇
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Shanghai Envision Innovation Intelligent Technology Co Ltd
Envision Digital International Pte Ltd
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Shanghai Envision Innovation Intelligent Technology Co Ltd
Envision Digital International Pte Ltd
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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
    • H02J3/28—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
    • H02J3/322—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging
    • 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
    • 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
    • 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
    • H02J3/381—Dispersed generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

The application discloses a power demand response method, a system, equipment and a medium, which relate to the technical field of power grids and are applied to a power demand response system. The method comprises the following steps: in response to receiving the power demand of the power grid broadcasted by the demand computation node, the response node generates a response scheme according to the power demand and the state information of the power supply equipment accessed to the block network; the response nodes correspond to the power supply equipment one by one, and are used for processing and storing response data of the power supply equipment responding to the power demand, wherein the response data comprise the power demand and a response scheme; the response node stores the response data into a block chain of the block network; and the response node controls the power supply equipment to supply power to the power grid in response to the power demand according to the response scheme. The method can eliminate the question of the response data of the user to the power demand response and improve the supervision capacity of the user to the power demand response.

Description

Power demand response method, system, device and medium
Technical Field
The present application relates to the field of power grid technologies, and in particular, to a method, a system, a device, and a medium for responding to a power demand.
Background
V2G (Vehicle-to-Grid) describes the relationship of an electric Vehicle to the Grid. When the electric automobile is not used, the user sells the electric energy of the vehicle-mounted battery to a system of the power grid, and the system of the power grid pays a certain economic subsidy to the user.
After the power grid sends out a power demand, the electric automobile discharges to the power grid in response to the power demand, and the power grid settles the response according to the discharge capacity of the electric automobile. In the related art, the electric meter on the electric vehicle does not display the relevant data responding to the power demand response of the power grid, a user can only check the published response data through the operation and maintenance party of the power grid, the response data is the total response, and the data of 15 minutes of actual response is not available, so that the user cannot check the actual response.
In the related art, response data of the electric vehicle responding to the power demand of the power grid are unilaterally provided by the power grid, and the authenticity and the credibility of the data are easily questioned.
Disclosure of Invention
The application provides a power demand response method, system, device and medium. The method can eliminate the question of the response data of the user to the power demand response and improve the supervision capacity of the user to the power demand response. The technical scheme is as follows:
according to one aspect of the application, a power demand response method is provided, which is applied to a power demand response system, wherein the power demand response system comprises response nodes and demand computation nodes which form a block network, and the method comprises the following steps:
in response to receiving the power demand of the power grid broadcasted by the demand computation node, the response node generates a response scheme according to the power demand and state information of power supply equipment accessed to the block network; the response nodes correspond to the power supply equipment one by one, and are used for processing and storing response data of the power supply equipment in a process of responding to the power demand, wherein the response data comprise the power demand and the response scheme;
the response node stores the response data into a block chain of the block network;
and the response node controls the power supply equipment to supply power to the power grid in response to the power demand according to the response scheme.
According to one aspect of the present application, there is provided an electric power demand response system including response nodes and demand computation nodes constituting a block network;
the demand calculation node is used for calculating the power demand of the power grid and broadcasting the power demand to the response node;
the response node is used for responding to the received power demand broadcast by the demand calculation node, and generating a response scheme according to the power demand and the state information of the power supply equipment accessed to the block network; the response nodes correspond to the power supply equipment one by one, and are used for processing and storing response data of the power supply equipment in a process of responding to the power demand, wherein the response data comprise the power demand and the response scheme;
the response node is used for storing the response data into a block chain of the block network;
and the response node is used for controlling the power supply equipment to supply power to the power grid in response to the power demand according to the response scheme.
According to an aspect of the present application, there is provided a computer device including: a processor having a memory coupled to the memory; wherein the processor is configured to load and execute executable instructions to implement the power demand response method as described in the above aspect.
According to an aspect of the present application, there is provided a computer-readable storage medium having stored thereon at least one instruction for execution by a processor to implement the power demand response method according to the above aspect.
According to an aspect of the present application, there is also provided a computer program product storing at least one instruction which is loaded and executed by a processor to implement the power demand response method of the above aspect.
The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:
by adopting the structure of the block chain and the block network of the power demand response system, after the demand calculation node broadcasts the power demand of the power grid, the response node of each power supply device can generate a response scheme according to the states of all the power supply devices in the block network, and the response scheme and the current power demand are stored in the block chain of the block network, so that each power supply device participating in the power demand response respectively stores the response data of the power demand response, the question of the user on the response data can be eliminated, the supervision capability of the user on the response data is improved, the supervision cost of the power demand response is reduced, the supervision efficiency is improved, and the implementation of the power demand response is promoted.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a system block diagram of a power demand response system provided by an exemplary embodiment of the present application;
FIG. 2 is a block diagram of a power grid provided by another exemplary embodiment of the present application;
FIG. 3 is a system block diagram of a power demand response system provided by another exemplary embodiment of the present application;
FIG. 4 is a schematic diagram of a response node of a power demand response system provided by another exemplary embodiment of the present application;
FIG. 5 is a block diagram of a power demand response system provided by another exemplary embodiment of the present application;
FIG. 6 is a method flow diagram of a power demand response method provided by another exemplary embodiment of the present application;
FIG. 7 is a method flow diagram of a power demand response method provided by another exemplary embodiment of the present application;
fig. 8 is a block diagram of a server according to an exemplary embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Reference herein to "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
First, the terms referred to in the present application will be briefly described:
electric Vehicle (EV): the electric vehicle is driven by an electric motor using electric energy as a power source.
Electric vehicles have received much attention because of their advantages of clean energy and environmental friendliness. The wide application of the electric automobile can effectively relieve the dependence of the traditional fuel oil automobile on fossil fuel on one hand, thereby reducing the emission of pollution gas; on the other hand, the energy storage system can be used as a flexible energy storage resource to enhance the response capability of the system.
State of Charge (SOC): the ratio of the remaining capacity of the battery to its capacity in the fully charged state is expressed in terms of percentage. The value range of the SOC is 0-1, when the SOC is 0, the battery is completely discharged, and when the SOC is 1, the battery is completely full.
V2G (Vehicle-to-Grid): when the electric vehicle is not in use, the electric energy of the vehicle-mounted battery is discharged to the power grid.
G2V (Grid-to-Vehicle ): the power grid charges the on-board battery.
DR (Demand Response, power Demand Response): when the reliability of the power system is threatened, after receiving a direct compensation notice of inductive reduction load or a power price rising signal sent by a power supply party, a power consumer changes the inherent conventional power consumption mode to reduce or push the power consumption load in a certain period of time to respond to power supply, thereby ensuring the stable short-term behavior of a power grid.
Under the conditions of future energy internet and dispersed energy market, the traditional power demand side response will develop towards the direction of comprehensive demand side response. The advantages of electric vehicles in terms of power demand response are mainly derived from their charging flexibility. The intelligent and ordered charging mode is combined with the power demand response service, and the intelligent and ordered charging mode is beneficial to smoothing a load curve of a power grid, improving the capacity utilization efficiency, delaying the upgrading of transmission and distribution capacity and the like. Meanwhile, if the electric vehicle and the power grid are interconnected in a bidirectional mode (a V2G mode), the electric vehicle can provide frequency modulation service to the power grid through the V2G, that is, the power grid temporarily obtains electric energy from the electric vehicle to ensure reliable operation of the power grid.
The electric vehicle charging station has a large number of EVs connected into a power grid and has large potential power demand response capacity. Meanwhile, many electric vehicle charging stations are currently equipped with energy storage devices that can discharge or charge from the grid, further increasing the ability of the electric vehicle charging station to respond to power demands. These energy storage devices and EVs can perform grid demand side responses, i.e., charging when grid load is low, and discharging to the grid when grid load is high, but this process may involve multiple stakeholders: 1) the EV owner can obtain a relevant response subsidy by participating in the power demand response; 2) the power grid initiates a power demand response signal and subsidies the participants according to the response amplitude; 3) the charging station operator is responsible for the operation of the charging station and provides hardware such as V2G; 4) the energy storage supplier, the energy storage device in the charging station may be purchased by the charging station operator, or there may be a separate energy storage hardware supplier, and at this time, the supplier will participate in the subsidy of the power demand response. Therefore, subsidy calculation participating in power demand response is a complex process of interest relevant parties, and particularly when subsidy pricing changes in real time, an effective data recording method is needed to guarantee reality, safety and no tampering of data to relevant parties.
The block chain is used as a decentralized distributed accounting mode, and the special data structure organization form of the block chain enables the block chain technology to have the characteristics of decentralized and transparent functions, contract execution automation and traceability. In the blockchain system, each node stores all data information in the whole blockchain, so that the data has a plurality of backups in the whole network. Each node data is commonly owned, managed and supervised by all participants. On one hand, each node can be added or separated from the network at will, and the stability of the network is ensured; on the other hand, the possibility of data tampering is smaller. The corresponding technical platform can be provided for the records of the transaction information such as charging, response and the like of the electric automobile in the power demand response process, and further the power demand response is promoted through market transaction.
The application provides an electric power demand response method, which is used for recording transaction information such as electricity price, response power, subsidy price and the like of an electric vehicle and energy storage equipment in a charging station in the automatic electric power demand response process, ensuring real and transparent information among related benefit bodies, and overcoming the problems of unsafe platform, data difference, low query efficiency and the like.
FIG. 1 illustrates a block diagram of a power demand response system provided by an exemplary embodiment of the present application. The system comprises: demand computing node 101 and response node 102.
For example, the power demand response system is deployed in a power grid (system), as shown in fig. 2, the power grid system includes an energy storage device 104 connected to the power grid, a charging pile 108 of an electric vehicle, an electric vehicle 109, and other electric devices 107. The electric vehicle 109 can be connected to the power grid through the charging pile 108, or directly connected to the power grid. For example, the energy storage device 104 may be directly connected to the power grid, or may be connected to the power grid through an access device. The devices accessed in the power grid include two types: the power supply system comprises a power supply device and a power utilization device, wherein the power supply device can release electric energy (discharge) to a power grid, and the power utilization device can obtain the electric energy (charge/power utilization) from the power grid. For example, the electric devices include all devices that consume electric energy when connected to the power grid, such as common electric appliances: household appliances, computer equipment, street lights, and the like. Illustratively, the power supply device includes a device, such as a battery, a generator, etc., which is connected to the power grid and can provide power for the power grid. Some devices may be used as both power supply devices and power consumption devices, for example, the energy storage device 104 and the electric vehicle 109 are power consumption devices during charging and power supply devices during discharging.
Illustratively, the power demand response system shown in FIG. 1 is deployed based on the physical structure of the power grid shown in FIG. 2. For example, the power demand response system is a logic system deployed based on a power grid system, and each logic node (response node or demand computation node) of the power demand response system corresponds to an actual physical device.
The response node is deployed corresponding to power supply equipment in the power grid. When power supply equipment connected to a power grid wants to join a power demand response system to respond to the power demand of the power grid to obtain subsidies, the power supply equipment creates a response node, and the response node is connected to the power demand response system to receive the power demand broadcasted by a demand calculation node in the power demand response system and respond. For example, the power supply device corresponding to the response node 102 may be an EV, an energy storage device, or a power generation device. For example, taking the power supply device as an electric vehicle as an example, the response node corresponding to the electric vehicle may be deployed on the electric vehicle, or may be deployed on a charging pile connected to the electric vehicle; taking the power supply device as the energy storage device as an example, the response node corresponding to the energy storage device may be disposed on the energy storage device, or may be disposed on an access apparatus connected to the energy storage device. The responding node refers to a logical node disposed on a physical device, and the physical device performs an operation and a storage function corresponding to the responding node, for example, the physical device includes a processor and a memory, and the processor and the memory run a code or a program to implement the function of the responding node. For example, the power supply devices connected to the power grid do not necessarily have to be connected to the power demand response system through the response nodes, but the power supply devices connected to the power demand response system through the response nodes have to be connected to the power grid.
The demand computing node is deployed on a computer device, the computer device can be accessed to a power grid or not, the demand node is a logic node deployed on the computer device (physical device), and the computer device is used for completing the operation and storage functions corresponding to the demand computing node. Illustratively, the computer device may be at least one of a terminal or a server, wherein the terminal includes at least one of a mobile phone, a laptop, a desktop, and a tablet.
Illustratively, all the nodes (the demand computing node and the response node) in the power demand response system are connected through a wired network or a wireless network to form a block network based on a block chain as shown in fig. 1. The block network is a Distributed network (Distributed network) based on a block chain technology.
Illustratively, as shown in fig. 1, the demand computation node 101 is configured to compute demand power and subsidy prices to which the grid needs to be responded, and to broadcast the power demand (demand power and subsidy prices) to the response node 102 in the power demand response system. The response node 102 is configured to receive the power demand, generate a response scheme according to the power demand and the state information of the power supply device, and control the power supply device to respond to the power demand of the power grid according to the response scheme to supply power to the power grid.
Illustratively, a demand computing node 101 is provided in an electric power demand response system, the number of response nodes 102 in the electric power demand response system may be arbitrary, for example, the number of response nodes may be 0, 1 or an infinite number, the number of response nodes 102 is determined according to the number of power supply devices accessing the electric power demand response system, and whenever a new power supply device is accessed, a new response node is created for the power supply device to access the electric power demand response system.
For example, as shown in fig. 3, taking the power supply device corresponding to the response node as an example including the EV103 and the energy storage device 104, where the EV103 includes the EV1, the EV2, the EV3, and the EV4, the power demand response system includes 5 response nodes and 1 demand computation node, and 6 nodes are connected two by two.
Illustratively, as shown in fig. 4, the response node includes a storage structure and a determination module, where the storage structure includes an IP (Internet Protocol) address 201, a public key 202, a private key 203, a response scheme 204, a block chain 205, a received information database 206, a response node information database 207, a charging and discharging information database 208, and a transaction database 209.
The public key and the private key are generated when the response node accesses the power demand response system, and are used for information encryption and verification. The receiving information database is used for caching the information broadcast by other nodes. The response node information database is used for storing the states and the demand information of all response nodes in the power demand response system. The state and demand information includes the current SOC of the power supply device corresponding to the response nodenowTotal battery capacity W and expected off-grid time t of power supply equipmentdepExpected minimum SOC off griddep. Illustratively, when the power supply device is an energy storage device, it expects an off-grid time tdepInfinite, off-grid minimum SOCdepIs (1-maximum depth of discharge). And the charge and discharge information database is used for storing the charge and discharge states and the charge and discharge powers of all response nodes in the power demand response system. The transaction database is used for storing intelligent contracts, power demands, response data and response income data, the intelligent contracts comprise at least one of energy storage renting contracts and EV renting contracts, after a response node finishes a power demand response, the response income data of the response is calculated according to the response data of the response and the power demands, the corresponding data, the power demands and the response income data are stored in the transaction database, and subsidy settlement requests are sent to the power grid according to the data stored in the transaction database to settle the response income. For example, after the response node receives the power demand broadcast by the demand computation node, the response judgment module judges the response scheme of the response node at this time, and the response node responds to the power demand at this time according to the response scheme.
The response node creates blank blocks on the block chain according to fixed time intervals, the demand calculation unit calculates the power demand of the power grid in a period of time according to the same time intervals, and the response node stores response data of the power supply equipment to the power demand into the latest blank blocks. Illustratively, as shown in fig. 5, a block in a block chain includes two parts, a block header 301 and a block body 302, wherein the block header 301 includes at least one of a version number of a current block, an address of a previous block, a timestamp, and a Merkle root; the block body 302 includes: response data of all response nodes participating in the response, illustratively, one piece of response data corresponds to one response node, and one piece of response data includes: and the response time interval, the required power required by the power grid corresponding to the time interval, the number of the response node, the response power of the response node, the response subsidy price and the response income of the response node in the current response.
For example, due to the effect of transmission distance on power transmission loss, a power demand response system is typically deployed in a regional power grid for responding to a power demand in the regional power grid, for example, based on a city or a regional power grid. For example, when the power demand response system of a city is deployed based on the power grid of the city, the response node may be deployed on the charging pile in each electric vehicle charging station of the city, and the electric vehicle may activate the response node to access the power demand response system through, for example, the charging pile, so as to respond to the power demand. The response node can also be deployed on each electric automobile, and no matter the electric automobile accesses the power grid of the city at the position of the city, the electric automobile can create the response node to access the power demand response system to respond to the power demand of the power grid. For example, the computer device corresponding to the demand calculation node may be set in the city or outside the city, and the demand response node may obtain the relevant power information of the city power grid through the network, so as to analyze the current power supply state of the power grid, calculate the demand power and the subsidy price of the power grid to generate the power demand when the power supply power of the power grid cannot meet the demand, and broadcast the power demand to the response node in the power demand response system. Of course, the computer device can also be directly connected to the power grid of the city to directly measure and calculate the power supply state of the city power grid.
Fig. 6 shows a flowchart of a power demand response method provided by an exemplary embodiment of the present application, where the method may be applied to a power demand response system as shown in fig. 1, where the power demand response system includes response nodes and demand computation nodes that form a block network, and the method may include the following steps:
step 401, in response to receiving the power demand of the power grid broadcasted by the demand computation node, the response node generates a response scheme according to the power demand and the state information of the power supply equipment accessed to the block network; the response nodes correspond to the power supply equipment one by one, and the response nodes are used for processing and storing response data of the power supply equipment in a power demand response process, and the response data comprises power demands and response schemes.
For example, the demand computation node periodically computes the power demand of the power grid over a period of time, the power demand includes the demanded power of the power grid, and the subsidy price, and the demand computation node broadcasts the power demand to other nodes in the block network after computing the power demand. For example, the demand calculation node calculates the power demand of the grid once every first time period in the future for the first time period. For example, the demand computation node computes the power demand of the grid every two hours in the future. For example, the power demand sent by the demand computation node is 1000kw of power needed in the next two hours (10:00-12:00), subsidizing 50 dollars per 100 kwh.
For example, after receiving the power demand, the response node obtains status information of all power supply devices in the power demand response system. For example, in the power demand response system, one response node corresponds to one power supply device, and whenever a new power supply device is connected to the power demand response system, a new response node is generated to be connected to the block network of the power demand response system. Therefore, after the response node receives the power demand, the response node broadcasts the state information of the power supply device corresponding to the node to other response nodes in the block network, and meanwhile, the response node also receives the state information of other power supply devices broadcasted by other response nodes, so that each response node can obtain the state information of all the power supply devices in the power demand response system.
Illustratively, a power supply device is a device that can supply power to a power grid in response to the power demand of the power grid. For example, the power supply device may be at least one of an electric vehicle, an energy storage device (battery), and a power generation device (generator). The power supply equipment can realize bidirectional circulation of energy with the power grid, namely, the power supply equipment can obtain electric energy from the power grid to charge, and the charging equipment can also provide electric energy for the power grid to discharge. For example, the power supply device may be an electric car or an energy storage device.
Illustratively, the state information of the power supply apparatus includes a current SOCnowTotal battery capacity W and expected off-grid time t of power supply equipmentdepExpected minimum SOC off griddepAt least one of (1). Wherein, when the power supply equipment is an electric automobile, the expected off-grid time t of the power supply equipmentdepAnd lowest SOC expected when off-griddepIs set by the user when accessing the power demand system, for example, the user accesses the electric vehicle to the power demand system for charging, and then sets the expected time to leave the power demand response system and the lowest SOC that the electric vehicle should have when leaving the power demand response systemdep。
Illustratively, the response node determines which power supply devices respond to the current power demand and the response power of each power supply device according to the power demand of the power grid and the state information of all the power supply devices, and generates a response scheme, and the response node controls the power supply devices to respond to the current power demand according to the generated response scheme. The response scheme is the sum of the schemes that all power supply equipment in the power demand response system respond to the current power demand. Each response node can calculate response schemes of all power supply equipment responding to the current power demand according to the power demand and the state information in the same calculation mode, when one response node calculates the response scheme, the response scheme is stored in the block chain, the response scheme is broadcasted to other nodes (the response node and the demand calculation node), the other nodes verify the response scheme after receiving the response scheme, and after the verification is passed, the response scheme is stored in the block chain to update the block chain backup of the node. Illustratively, the response scheme includes: and the power supply equipment responds to the current power demand, the response power of the power supply equipment and the expected response benefit of the power supply equipment from the current response.
Illustratively, the response node and the demand computation node are nodes in a block network accessing a block chain, and the response node may be any computer device with computing capability, for example, the response node may be implemented by a computer device on an electric automobile, a computer device on a charging pile, or a computer device on a charging device of a storage battery. That is, the response node may be provided in the power supply device, or may be provided in an access device/device that the power supply device accesses to the power demand response system, and one power supply device corresponds to one response node. Illustratively, the demand computation node may be a computer device, such as a terminal or server, that accesses a block network of the power demand response system.
In step 402, the responding node stores the response data in a block chain of the block network.
For example, after the response node generates the response scheme, the response scheme and the power requirement are packaged into the blocks, and the blocks are linked into the block chain.
Illustratively, the responding node will periodically create a blank block, and link the blank block into the block chain. Illustratively, the response node creates the blank block for the same period of time that the demand computation node calculates the demand for power. When the response scheme is generated, the responding node packages the response data into the latest blank block and links into a block chain.
Illustratively, each node in the block network of the power demand response system maintains a block chain together, the block chain is used for storing response data of each response node in the power demand response system responding to each power demand, and due to the characteristics of the block chain, each node stores a backup of the block chain, and the stored response data is not easy to change.
And step 403, the response node controls the power supply equipment to supply power to the power grid in response to the power demand according to the response scheme.
After the response scheme is generated, the response node generating the response scheme broadcasts the response scheme to other nodes, the other nodes verify and store the response scheme, and then each response node controls the power supply equipment corresponding to the node according to the response scheme to respond to the current power demand.
Illustratively, when the power supply device controlled by the node is listed as a response power supply device responding to the current power demand in the response scheme, the response power supply device is controlled to supply power to the power grid. And when the power supply equipment controlled by the node is not listed as the response power supply equipment for responding the current power demand in the response scheme, the power supply equipment is not controlled to supply power to the power grid.
In summary, in the method provided in this embodiment, a block network of the power demand response system is constructed by using a block chain structure, and after the demand computation node broadcasts the power demand of the power grid, the response node of each power supply device generates a response scheme according to the states of all power supply devices in the block network, and stores the response scheme and the current power demand into the block chain of the block network, so that each power supply device participating in the power demand response stores response data of the power demand response, and therefore, the question of the user on the response data can be eliminated, the supervision capability of the user on the response data is improved, the supervision cost of the power demand response is reduced, the supervision efficiency is improved, and the implementation of the power demand response is promoted.
In the embodiment based on fig. 6, fig. 7 shows a flowchart of a power demand response method provided by another exemplary embodiment of the present application. In this embodiment, step 401 includes step 4011 and step 4012, step 402 includes step 4021 and step 4022, and step 403 further includes step 404 and step 405.
Step 4011, in response to receiving the power demand of the power grid broadcasted by the demand computation node, the response node obtains and stores state information of n power supply devices in the block network to obtain a state information set.
Illustratively, the storage structure of the response node includes an IP address, a public key, a private key, a response scheme, a block chain, a reception information database, a response node information database, a charging and discharging information database, and a transaction database as shown in fig. 4. After receiving the power demand, the response node sends the state information of the power supply equipment of the node to other nodes in the block network, receives the state information of the power supply equipment sent by other response nodes, and stores the state information of all the power supply equipment in the power demand response system into the charging and discharging information database.
Illustratively, the storage structure of the demand compute node may be the same as the storage structure of the response node. For example, the storage structure of the demand computing node may include only: IP address, public key, private key, and blockchain.
For example, the status information of all the power supply apparatuses is referred to as a status information set.
And step 4012, the response node generates a response scheme according to the state information set and the power demand.
Illustratively, the response node includes a storage structure and a determination module for generating a response scheme based on the set of state information and the power demand.
Illustratively, the status information includes the discharge power of the power supply device and the expected departure time from the block network (power demand response system).
Illustratively, the discharge power is the maximum power that the power supply device is allowed to discharge. Taking the power supply equipment as an electric automobile as an example, the discharge power PdIs the maximum output power P of the electric automobilebdisAnd the maximum receiving power P of the charging pilepileinActual maximum output power P of electric automobileleftMinimum value of (P)d＝min{Pbdis,Ppilein,Pleft}). The actual maximum output power of the electric vehicle is an average power discharged within a certain time according to the current remaining power of the electric vehicle, for example, if the current remaining power of the electric vehicle is 300kwh (kilowatt hour), and the certain time is 15 minutes, the actual maximum output power P of the electric vehicle in the current state is obtainedleftIs 300/0.25 ═1200kw (kilowatts). If the maximum output power P of the electric automobilebdis300kw, the maximum received power P of the charging pile connected to the current electric automobilepileinAt 500kw, the discharge power of the electric vehicle is min {1200,300,500}, which is 300 kw.
For example, the expected departure time is a time set by a user, for example, when the user connects the power supply device to the power demand response system, the user is expected to exit the power demand response system after 3 hours. When the power supply device is an energy storage device, the expected field-off time of the energy storage device, which is the discharge power of the energy storage device, is infinite.
The response node calculates n discharge priorities corresponding to the n power supply devices respectively according to the state information set, the discharge priorities and the discharge power of the power supply devices are in positive correlation, the discharge priorities and the expected field-off time of the power supply devices are in negative correlation, and n is a positive integer.
For example, the response scheme provided by this embodiment is to give priority to the power supply device with high discharge power and short off-site time in the power demand response system to discharge preferentially. Thus, a discharge priority is introduced to order the power supply devices.
Illustratively, a method of calculating a discharge priority is given: the discharging priority of one power supply device is equal to the difference between the power factor and the time factor of the power supply device, wherein the power factor is equal to the ratio of the discharging power of the power supply device to the discharging average power, and the discharging average power is the average value of the discharging power of all the power supply devices connected into the power demand response system; the time factor is equal to the ratio of the expected departure time length to the fixed time length, the expected departure time length is equal to the difference between the expected departure time length and the current time, and the fixed time length is the preset time length. For example, when the power demand response system is disposed within the charging station, the fixed duration may be equal to the difference between the charging station door closing time and the current time.
Illustratively, the greater the discharge priority of the power supply device, the greater its discharge power, and the closer the field time is expected.
The response node arranges the n power supply equipment according to the discharge priority from large to small to obtain a discharge sequence list of the power supply equipment; the response node determines the first j power supply devices in the discharge order list as response power supply devices for responding to the power demand according to the power demand, wherein j is a positive integer less than or equal to n.
Illustratively, the power demand includes a demanded power required by the grid. Illustratively, the response node calculates the sum of the discharge powers of the first j power supply devices in the discharge order list to obtain a first total discharge power, and calculates the sum of the discharge powers of the first j-1 power supply devices in the discharge order list to obtain a second total discharge power, wherein j is a positive integer less than or equal to n, and n is a positive integer; the response node determines the first j power supply devices as responding power supply devices for responding to the power demand in response to the first total power discharge being greater than the demanded power and the second total power discharge being less than the demanded power.
That is, the n power supply apparatuses in the discharge order list are arranged in the order of [ d1, d2, d3 … … dn ]]For example, its corresponding discharge power PdIs Pd1、Pd2、Pd3……PdnThen the first j power supply devices should satisfy
Figure BDA0002977336610000131
And is
Figure BDA0002977336610000132
Wherein, Δ P is the required power of the power grid.
The response node determines the response power of the response power supply device according to the discharge power and the power demand of the response power supply device.
Illustratively, the response node determines the discharge power of the first j-1 power supply devices as the response power of the first j-1 response power supply devices; calculating a first difference value between the required power and the second total discharge power by the response node; and the response node determines a second difference value between the discharge power of the jth power supply device and the first difference value as the response power of the jth response power supply device.
Namely, the discharge power of the first j-1 power supply devices (response power supply devices) is the response power, and the response power of the jth power supply device (response power supply device) is the difference between the required power and the total discharge power of the previous j-1 power supply devices.
Illustratively, the responding power supply device is a power supply device participating in the response of the current power demand, and for the power supply devices arranged from the j +1 th to the nth in the discharge sequence list, the current power demand is not responded, and the power supply devices do not discharge to the power grid.
For example, the response node may also generate the response scheme according to other methods, for example, according to the discharge power of the power supply devices, the first j power supply devices with the maximum discharge power are determined as the response power supply devices. Or, the response node calculates an average value of the required power according to the number of the power supply devices currently connected to the power demand response system, that is, the required power is divided by the number of the power supply devices, and all the power supply devices are controlled to discharge to the power grid according to the average value of the required power.
For example, in consideration of power transmission loss, the response node may further obtain a geographic location of the power supply device, calculate a device distance between the power supply device and a city center location, calculate a ratio of the device distance to a device average distance to obtain a distance priority, where the device average distance is an average value of the device distances of all the power supply devices, and sort the power supply devices according to a difference between the discharge priority and the distance priority to obtain a discharge order list. And selecting the front j power supply equipment as response power supply equipment to respond to the current power demand according to the discharge sequence list.
In step 4021, the responding node periodically creates a blank chunk on the blockchain.
Illustratively, the response node creates the blank blocks for the same period that the demand computation node calculates the demand for power.
Step 4022, in response to the response scheme being generated, the responding node stores the response data in the blank block corresponding to the latest time interval in the block chain.
Illustratively, the response data includes a response scheme and a power demand. The response scheme includes: at least one of a number of the response power supply device, response power, response profit, and response period. The power demand includes at least one of a demanded power and a subsidy price. For example, the response data includes j response records of j response power supply devices (response nodes), each of which includes: at least one of a response time interval, the power demand of the power grid, the number of the response node (response power supply device), the response power of the response power supply device, the subsidy price of the response, and the response income of the response. Illustratively, the response period is a discharge period of the response power supply device. The response profit is a profit calculated from the subsidy price and the response power.
For example, when a power demand response occurs, the response node packages the response data of the current power demand response into the latest blank block, and links the packaged block into the block chain of the power demand response system.
And step 404, the response node acquires a response result of the power supply equipment responding to the power demand, and stores the response result into a transaction database, wherein the response result comprises at least one of response power, response time interval, subsidy price and response income of the power supply equipment.
Illustratively, the response node further comprises a transaction database, wherein the transaction database stores transaction objects, transaction contents and intelligent contracts. The transaction objects are users (user account numbers) providing power supply equipment and operators of the power grid, and the transaction contents (response results) comprise: at least one of response power, demand power, subsidy price, and response revenue. The intelligent contract comprises a renting contract of the energy storage equipment and an EV renting contract, the contract stipulates that the use right of response power supply equipment (the energy storage equipment and the EV) which is judged to participate in demand response is rented to an operator of a power grid within a period of time on the premise that a preset trigger condition in the contract is met, an energy storage equipment owner and an EV owner are used as renters, the operator of the power grid is used as a lessee, the former obtains a rent issued in a response subsidy mode, and the latter pays the response subsidy to obtain the use right of the energy storage equipment and the EV.
For example, after the power demand response is finished, the response node may store the response result of the current response into the transaction database.
Step 405, the response node sends a profit settlement request to the server according to the response result stored in the transaction database, and the server is used for performing profit settlement according to the response result.
Illustratively, the profit settlement request includes a response result, the server is a server set by an operator of the power grid, and the server is used for performing transaction settlement.
For example, the present embodiment further provides an exemplary embodiment of adding a response node to the power demand response system.
For example, the original n response nodes in the power demand response system are taken as an example. Responding to the access of the (n + 1) th power supply equipment to the power demand response system, and generating an address, a private key and a public key of the (n + 1) th response node by the (n + 1) th response node corresponding to the (n + 1) th power supply equipment; the (n + 1) th response node broadcasts (n + 1) th node information to the block network, wherein the (n + 1) th node information comprises the address and the public key of the (n + 1) th response node; n response nodes receive the (n + 1) th node information and store the (n + 1) th node information into respective response node information databases; the n +1 th response node receives n pieces of node information of n response nodes broadcasted by the n response nodes, the n +1 piece of node information is stored in an n +1 th response node information database, the n +1 piece of node information comprises the n pieces of node information and the n +1 th piece of node information, and the n +1 th response node information database is the n +1 th response node information database of the response nodes.
Illustratively, the responding node periodically broadcasts node information of the node to other responding nodes in the power demand response system, wherein the node information comprises at least one of an IP address of the node, a public key, a current power amount of the power supply device, a total capacity of a battery, a predicted offline time of the power supply device, and a lowest power amount expected when the power supply device is offline. And after receiving the node information, other response nodes update the node information to the own response node information database in real time.
Illustratively, the response node information database stores node information of each response node in the power demand response system.
In summary, in the method provided in this embodiment, after the response node receives the power demand, the response node synchronizes the state information of the power supply devices to other response nodes, calculates the discharge priorities of all the power supply devices according to the state information and the power demand, sorts the power supply devices according to the discharge priorities, and selects the power supply device with the higher discharge priority as the response power supply device to respond to the current power demand. Therefore, the power supply equipment with high discharge power and short off-grid time is preferentially selected to perform power demand response, and the efficiency of power demand response and the resource utilization rate are improved.
By way of example, an exemplary embodiment is presented in which the power demand response method provided herein is applied in an electric vehicle charging station.
In an exemplary embodiment, in an electric vehicle charging station, response nodes are configured on a charging pile and an energy storage device in the charging station, demand calculation nodes are configured on any computer in the charging station, and the nodes are connected through a local area network or a wide area network to form a block network based on a block chain.
When a new electric automobile is accessed to the power demand response system through the charging pile, the computer of the charging pile generates a new response node, an IP address of the node is obtained, a private key is generated, a public key is generated according to the private key, the public key and relevant information of the power supply equipment are broadcasted to other nodes in the power demand network, node information of other nodes is downloaded from other nodes, and the node information is stored in a response node information database. And completing the access process of the new response node.
Illustratively, the demand computation node periodically computes a demand for power and broadcasts the demand for power to the response nodes. After receiving the power demand, the response node determines the charging and discharging state and the discharging power of the power supply equipment of the node and broadcasts the power supply equipment to the whole network, receives the state information of the power supply equipment broadcast by other response nodes, and sorts all the power supply equipment according to the discharging priority alpha to form a node discharging sequence list. And the response node selects the first power supply equipment in the discharge sequence list as response power supply equipment to respond to the current power demand to discharge to the power grid according to the required power in the power demand.
In summary, according to the method provided in this embodiment, by constructing the power demand response system in the charging station, when the power grid has a power demand, the power supply device in the charging station can supply power to the power grid, so as to reduce the load of the power grid, improve the resource utilization rate, and enable the owner of the power supply device to obtain a certain benefit through the power demand response. The block chain is used for storing the response data, so that the reliability of the response data is improved, a better supervision mode is provided, the supervision cost of the power demand response is reduced, the supervision efficiency is improved, and the implementation of the power demand response is promoted.
Illustratively, as shown in fig. 1, the present application further provides an electric power demand response system, which includes a response node 102 and a demand computation node 101 that form a block network;
the response node 102 is configured to generate, in response to receiving the power demand of the power grid broadcasted by the demand computation node 101, a response scheme according to the power demand and state information of the power supply device accessing the block network; the response nodes 102 correspond to the power supply devices one by one, and the response nodes 102 are configured to process and store response data of the power supply devices in a process of responding to the power demand, where the response data includes the power demand and the response scheme;
the response node 102 is configured to store the response data into a block chain of the block network;
the response node 102 is configured to control the power supply device to supply power to the power grid in response to the power demand according to the response scheme.
In an optional embodiment, the block network includes n response nodes 102, where the n response nodes 102 respectively correspond to n power supply devices, and n is a positive integer;
the response node 102 is configured to, in response to receiving the power demand of the power grid broadcasted by the demand computation node 101, obtain and store the state information of the n power supply devices in the block network to obtain a state information set;
the response node 102 is configured to generate the response scheme according to the state information set and the power demand.
In an alternative embodiment, the status information includes a discharge power of the power supply device and an expected departure time from the block network; the response scheme includes a response power supply device responding to the power demand and a response power of the response power consuming device;
the response node 102 is configured to calculate n discharge priorities corresponding to the n power supply apparatuses, respectively, according to the state information set, where the discharge priorities are in a positive correlation with the discharge power of the power supply apparatus, the discharge priorities are in a negative correlation with the expected field-off time of the power supply apparatus, and n is a positive integer;
the response node 102 is configured to arrange the n power supply devices in a descending order of the discharge priority to obtain a discharge order list of the power supply devices;
the response node 102 is configured to determine, according to the power demand, the first j power supply devices in the discharge order list as response power supply devices for responding to the power demand, where j is a positive integer smaller than or equal to n;
the response node 102 is configured to determine a response power of the response power supply device according to the discharge power and the power demand of the response power supply device.
In an alternative embodiment, the power demand comprises a demand power;
the response node 102 is configured to calculate a sum of the discharge powers of the first j power supply devices in the discharge order list to obtain a first total discharge power, and calculate a sum of the discharge powers of the first j-1 power supply devices in the discharge order list to obtain a second total discharge power, where j is a positive integer less than or equal to n, and n is a positive integer;
the response node 102 is configured to determine the first j power supply apparatuses as the response power supply apparatuses for responding to the power demand in response to the first total discharge power being greater than the demand power and the second total discharge power being less than the demand power.
In an alternative embodiment, the response node 102 is configured to determine the discharge power of the first j-1 power supply devices as the response power of the first j-1 power supply devices;
the response node 102 is configured to calculate a first difference between the required power and the second total discharge power;
the response node 102 is configured to determine a second difference between the discharge power of the jth power supply device and the first difference as the response power of the jth responding power supply device.
In an optional embodiment, the response node 102 includes a charging and discharging information database;
the response node 102 is configured to, in response to receiving the power demand of the power grid broadcasted by the demand computation node 101, obtain the state information of n power supply devices in the block network to obtain a state information set;
the response node 102 is configured to store the state information set into the charge and discharge information database.
In an alternative embodiment, the responding node 102 is configured to periodically create a blank block on the block chain;
the responding node 102 is configured to, in response to generating the response scheme, store the response data into a blank block corresponding to a latest time period in the block chain.
In an alternative embodiment, the responding node 102 includes a responding node 102 information database, the block network includes n responding nodes, n is a positive integer;
the (n + 1) th response node corresponding to the (n + 1) th power supply device is used for responding to the (n + 1) th power supply device accessing the power demand response system and generating an address, a private key and a public key of the (n + 1) th response node;
the (n + 1) th response node is configured to broadcast (n + 1) th node information to the block network, where the (n + 1) th node information includes an address and a public key of the (n + 1) th response node;
the n response nodes are used for receiving the n +1 th node information and storing the n +1 th node information into the respective response node information databases;
the n +1 th responding node is configured to receive n pieces of node information of the n responding nodes broadcasted by the n responding nodes, and store the n +1 piece of node information into an n +1 th responding node information database, where the n +1 piece of node information includes the n pieces of node information and the n +1 th piece of node information, and the n +1 th responding node information database is the responding node information database of the n +1 th responding node.
In an alternative embodiment, the responding node 102 includes a transaction database;
the response node 102 is configured to obtain a response result of the power supply device responding to the power demand, and store the response result in the transaction database, where the response result includes at least one of response power, a response time period, a subsidy price, and a response profit of the power supply device;
the response node 102 is configured to send a profit settlement request to a server according to the response result stored in the transaction database, and the server is configured to perform profit settlement according to the response result.
The application also provides a server, which comprises a processor and a memory, wherein at least one instruction is stored in the memory, and the at least one instruction is loaded and executed by the processor to implement the security detection method provided by the above method embodiments. It should be noted that the server may be a server as provided in fig. 8 below.
Referring to fig. 8, a schematic structural diagram of a server according to an exemplary embodiment of the present application is shown. Specifically, the method comprises the following steps: the server 1300 includes a Central Processing Unit (CPU) 1301, a system Memory 1304 including a Random Access Memory (RAM) 1302 and a Read-Only Memory (ROM) 1303, and a system bus 1305 connecting the system Memory 1304 and the CPU 1301. The server 1300 also includes a basic Input/Output (I/O) system 13013 for facilitating information transfer between various devices within the computer, and a mass storage device 1307 for storing an operating system 1313, application programs 1314, and other program modules 1315.
The basic input/output system 1306 includes a display 1308 for displaying information and an input device 1309, such as a mouse, keyboard, etc., for a user to input information. Wherein the display 1308 and input device 1309 are connected to the central processing unit 1301 through an input-output controller 1310 connected to the system bus 1305. The basic input/output system 1306 may also include an input/output controller 1310 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, input-output controller 1310 also provides output to a display screen, a printer, or other type of output device.
The mass storage device 1307 is connected to the central processing unit 1301 through a mass storage controller (not shown) connected to the system bus 1305. The mass storage device 1307 and its associated computer-readable media provide non-volatile storage for the server 1300. That is, the mass storage device 1307 may include a computer-readable medium (not shown) such as a hard disk or CD-ROM (Compact disk Read-Only Memory) drive.
Without loss of generality, the computer-readable media may comprise computer storage media and communication media. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, RAM, ROM, EPROM (Electrically Programmable Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), flash Memory or other solid state Memory technology, CD-ROM, DVD (Digital Video Disc) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that the computer storage media is not limited to the foregoing. The system memory 1304 and mass storage device 1307 described above may be collectively referred to as memory.
The memory stores one or more programs configured to be executed by the one or more central processing units 1301, the one or more programs containing instructions for implementing the management method of the internet of things device, and the central processing unit 1301 executes the one or more programs to implement the management method of the internet of things device provided by the various method embodiments described above.
The server 1300 may also operate as a remote computer connected to a network via a network, such as the internet, according to various embodiments of the present application. That is, the server 1300 may be connected to the network 1312 through the network interface unit 1311, which is connected to the system bus 1305, or may be connected to other types of networks or remote computer systems (not shown) using the network interface unit 1311.
The memory further includes one or more programs, the one or more programs are stored in the memory, and the one or more programs include steps executed by the server for performing the management method of the internet of things device provided by the embodiment of the application.
The embodiment of the present application further provides a computer-readable medium, where at least one instruction is stored, and the at least one instruction is loaded and executed by the processor to implement the management method for the internet of things device according to the above embodiments.
The embodiment of the present application further provides a computer program product, where at least one instruction is stored, and the at least one instruction is loaded and executed by a processor to implement the management method for the internet of things device according to the foregoing embodiments.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. An electric power demand response method applied to an electric power demand response system including response nodes and demand computation nodes constituting a block network, the method comprising:
in response to receiving the power demand of the power grid broadcasted by the demand computation node, the response node generates a response scheme according to the power demand and state information of power supply equipment accessed to the block network; the response nodes correspond to the power supply equipment one by one, and are used for processing and storing response data of the power supply equipment in a process of responding to the power demand, wherein the response data comprise the power demand and the response scheme;
the response node stores the response data into a block chain of the block network;
and the response node controls the power supply equipment to supply power to the power grid in response to the power demand according to the response scheme.
2. The method according to claim 1, wherein the block network comprises n response nodes, the n response nodes respectively correspond to n power supply devices, and n is a positive integer;
the responding node generates a responding scheme according to the power demand and the state information of the power supply equipment accessed to the block network in response to receiving the power demand of the power grid broadcasted by the demand computing node, and the responding scheme comprises the following steps:
in response to receiving the power demand of the power grid broadcast by the demand computation node, the response node obtaining and storing the status information of the n power supply devices in the block network into a status information set;
the response node generates the response scheme according to the set of state information and the power demand.
3. The method of claim 2, wherein the status information includes a discharge power of the power sourcing equipment and an expected departure time from the block network; the response scheme includes a response power supply device responding to the power demand and a response power of the response power consuming device;
the response node generating the response scheme according to the set of state information and the power demand, including:
the response node calculates n discharge priorities corresponding to the n power supply devices respectively according to the state information set, the discharge priorities are in positive correlation with the discharge power of the power supply devices, the discharge priorities are in negative correlation with the expected field leaving time of the power supply devices, and n is a positive integer;
the response node arranges the n power supply devices according to the discharge priority from large to small to obtain a discharge sequence list of the power supply devices;
the response node determines the first j power supply devices in the discharge sequence list as response power supply devices for responding to the power demand according to the power demand, wherein j is a positive integer smaller than or equal to n;
the response node determines a response power of the responsive power sourcing equipment from the discharge power and the power demand of the responsive power sourcing equipment.
4. The method of claim 3, wherein the power demand comprises a demanded power;
the response node determining the first j power supply devices in the discharge order list as response power supply devices responding to the power demand according to the power demand, and the response node comprises:
the response node calculates the sum of the discharge powers of the first j power supply devices in the discharge sequence list to obtain a first total discharge power, calculates the sum of the discharge powers of the first j-1 power supply devices in the discharge sequence list to obtain a second total discharge power, j is a positive integer smaller than or equal to n, and n is a positive integer;
the response node determines the first j power supply devices as the responding power supply devices for responding to the power demand in response to the first total power discharged being greater than the demanded power and the second total power discharged being less than the demanded power.
5. The method of claim 4, wherein the response node determining a response power of the responsive power supply device as a function of the discharge power and the power demand of the responsive power supply device comprises:
the response node determines the discharge power of the first j-1 of the power supply devices as the response power of the first j-1 of the response power supply devices;
the response node calculates a first difference value between the required power and the second total discharge power;
the response node determines a second difference between the discharge power of a jth power supply device and the first difference as the response power of a jth responding power supply device.
6. The method of any of claims 1 to 5, wherein the responding node comprises a database of responding node information, wherein the block network comprises n responding nodes, wherein n is a positive integer, and wherein the method further comprises:
responding to the access of the (n + 1) th power supply device to the power demand response system, and generating an address, a private key and a public key of the (n + 1) th response node corresponding to the (n + 1) th power supply device;
the n +1 th response node broadcasts n +1 th node information to the block network, wherein the n +1 th node information comprises the address and the public key of the n +1 th response node;
the n response nodes receive the (n + 1) th node information and store the (n + 1) th node information into the respective response node information databases;
the n +1 th responding node receives n pieces of node information of the n responding nodes broadcasted by the n responding nodes, and stores the n +1 piece of node information into an n +1 th responding node information database, wherein the n +1 piece of node information comprises the n pieces of node information and the n +1 th piece of node information, and the n +1 th responding node information database is the responding node information database of the n +1 th responding node.
7. The method of any of claims 1 to 5, wherein the responding node comprises a transaction database; the method further comprises the following steps:
the response node acquires a response result of the power supply equipment responding to the power demand, and stores the response result into the transaction database, wherein the response result comprises at least one of response power, response time interval, subsidy price and response income of the power supply equipment;
and the response node sends a profit settlement request to a server according to the response result stored in the transaction database, and the server is used for performing profit settlement according to the response result.
8. An electric power demand response system characterized by comprising: response nodes and demand computation nodes which form a block network;
the demand calculation node is used for calculating the power demand of the power grid and broadcasting the power demand to the response node;
the response node is used for responding to the received power demand broadcast by the demand calculation node, and generating a response scheme according to the power demand and the state information of the power supply equipment accessed to the block network; the response nodes correspond to the power supply equipment one by one, and are used for processing and storing response data of the power supply equipment in a process of responding to the power demand, wherein the response data comprise the power demand and the response scheme;
the response node is used for storing the response data into a block chain of the block network;
and the response node is used for controlling the power supply equipment to supply power to the power grid in response to the power demand according to the response scheme.
9. A computer device, wherein the computer device comprises a processor and a memory; the memory has stored therein at least one instruction, at least one program, set of codes, or set of instructions that is loaded and executed by the processor to implement the power demand response method of any of claims 1 to 7.
10. A computer-readable storage medium having stored thereon at least one instruction for execution by a processor to implement the power demand response method of any one of claims 1 to 7.
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