CN111062773A - Virtual power plant transaction management system - Google Patents

Virtual power plant transaction management system Download PDF

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Publication number
CN111062773A
CN111062773A CN201911121680.1A CN201911121680A CN111062773A CN 111062773 A CN111062773 A CN 111062773A CN 201911121680 A CN201911121680 A CN 201911121680A CN 111062773 A CN111062773 A CN 111062773A
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transaction
power plant
stage
virtual power
contract
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CN201911121680.1A
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CN111062773B (en
Inventor
周洪益
柏晶晶
唐华
马汝祥
胡志林
王慧
胥峥
袁德刚
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State Grid Corp of China SGCC
Yancheng Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
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State Grid Corp of China SGCC
Yancheng Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • G06Q30/0601—Electronic shopping [e-shopping]
    • G06Q30/0605—Supply or demand aggregation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/02—Marketing; Price estimation or determination; Fundraising
    • G06Q30/0283—Price estimation or determination
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Electricity, gas or water supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • 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
    • Y04S50/00—Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
    • Y04S50/16—Energy services, e.g. dispersed generation or demand or load or energy savings aggregation

Abstract

The invention provides a virtual power plant transaction management system which comprises an internal electricity price determining stage, a user transaction matching stage, a contract determining stage, a transaction executing stage and a transaction settlement stage, wherein the transaction management system adopts a block chain distributed system to complete internal transactions of a virtual power plant and transactions with a power grid through the internal electricity price determining stage, the user transaction matching stage, the contract determining stage, the transaction executing stage and the transaction settlement stage respectively. The invention provides a transaction management system of a virtual power plant, which can intelligently monitor the execution state and the execution condition of a transaction contract and improve the power utilization benefit and the productivity value of users in the virtual power plant.

Description

Virtual power plant transaction management system
Technical Field
The invention belongs to the technical field of virtual power plants, and particularly relates to a transaction management system of a virtual power plant.
Background
With the appearance of the problems of fossil energy exhaustion, environmental pollution and the like, clean renewable distributed new energy power generation gradually becomes the focus of people's attention. Distributed new energy access distribution networks increasingly show the development trend of good penetration and high density. The distribution network may provide electric energy to loads of the micro-grid and may also receive electric energy from new energy sources of the micro-grid, the original unidirectional flow of the distribution network is changed into bidirectional flow, and the energy structure becomes more complex. Meanwhile, wind power generation and photovoltaic power generation are influenced by objective factors such as geography and climate, and the power generation has the characteristics of randomness, intermittence and instability, so that the energy distribution of a power distribution network has larger uncertainty, the output power is unstable, and the power grid is greatly impacted when the power distribution network is connected, and people are looking for a mode that distributed new energy power generation participates in the power market.
The virtual power plant technology does not change the grid-connected mode of each distributed power supply, but aggregates distributed energy sources of different types such as distributed power supplies, energy storage systems, controllable loads, electric vehicles and the like through advanced control, metering, communication and other technologies, and realizes the coordinated optimization operation of a plurality of distributed energy sources through a higher-level software framework, thereby being more beneficial to the reasonable optimization configuration and utilization of resources, improving the utilization rate of the distributed energy sources, realizing the active management of a power distribution network, and effectively reducing the quantity of centralized power plants through integrating more distributed power supplies, thereby optimizing the investment cost of the power distribution network and a power transmission network.
The invention provides a virtual power plant transaction management system, which selects different prices and transaction modes according to the internal actual conditions of a virtual power plant, improves the power utilization benefit and the productivity value of users in the virtual power plant, and adopts a block chain distributed system to perform transaction to monitor the execution state and the execution condition of a transaction contract in real time.
Disclosure of Invention
The invention provides a transaction management system of a virtual power plant, which can intelligently monitor the execution state and the execution condition of a transaction contract and improve the power utilization benefit and the productivity value of users in the virtual power plant.
The invention particularly relates to a virtual power plant transaction management system which comprises an internal electricity price determining stage, a user transaction matching stage, a contract determining stage, a transaction executing stage and a transaction settlement stage, wherein the transaction management system adopts a block chain distributed system to complete internal transactions of a virtual power plant and transactions with a power grid through the internal electricity price determining stage, the user transaction matching stage, the contract determining stage, the transaction executing stage and the transaction settlement stage respectively.
And the internal electricity price determining stage determines according to the total electricity purchasing power and the total electricity selling power of the virtual power plant: if the total electricity selling power is equal to zero, the photovoltaic capacity of all users in the virtual power plant is insufficient or equal to zero, and all the users in the virtual power plant can only use the price p1Purchasing electrical energy from the electrical grid; if total power selling power is greater than zero and is less than total power purchasing power, surplus electric energy needs to be sold in the surplus user's productivity in virtual power plant, partial user's energy shortage need to electric energy is purchased to the electric wire netting, just in the virtual power plant total energy shortage need to electric energy is purchased to the electric wire netting, virtual power plant selects the minimum price to carry out inside transaction, with p1The price is the electric energy purchased from the power grid, so that the electricity purchasing cost of the electricity purchasing users is as low as possible, the electricity utilization efficiency of the electricity selling users is as high as possible, and the minimum price is lower than p1(ii) a If the total electricity selling power is larger than the total electricity purchasing powerPower, surplus needs to sell surplus electric energy in the inside user's productivity of virtual power plant, and the electric energy needs to be bought to the part user's productivity shortage, just total energy surplus in the virtual power plant need to the electric wire netting is sold electricity, virtual power plant selects the highest price to carry out inside transaction, with p2Selling electric energy to the grid at a price, the maximum price being higher than p2。
And the contract determining stage is used for determining a trading contract according to the user electricity price and the electric energy trading volume in the virtual power plant:
step (1): the transaction initiator selects a transaction object according to the internal electricity price and the electric energy transaction amount of the virtual power plant and sends a transaction invitation to the object through a transaction platform;
step (2): the transaction receiver receives the transaction invitation;
and (3): the transaction receiver judges whether to carry out the transaction according to the transaction invitation, if the transaction is carried out, the step (5) is carried out, if the transaction is not carried out, a reply of refusing the transaction is sent to the transaction initiator within 60 minutes or the reply is not sent out beyond 60 minutes;
and (4): sending a transaction receiving reply to the transaction initiator within 60 minutes, and proposing a transaction requirement of the transaction receiver;
and (5): the two parties sign a trading contract, store the trading contract into a block chain in the form of codes, and record the trading contract into data blocks of the block chain after being broadcast and verified in the block chain distributed system.
The transaction execution stage intelligently finishes a scheduling task according to the content of the transaction contract, the user energy management system assists in controlling the power utilization behavior of the user according to the content of the transaction contract, the block chain distributed system monitors the execution state and the execution condition of the transaction contract in real time, and confirms that the transaction contract is triggered to execute a specific transaction or execute a specific action after the execution condition of the transaction contract is reached by inquiring external data.
And in the transaction settlement stage, after the transaction is completed, the transaction settlement is carried out according to the transaction contract content and the actual transaction condition, and the transfer of the transaction funds of both parties is intelligently completed.
Compared with the prior art, the beneficial effects are: the transaction management system selects different prices and transaction modes according to the internal actual conditions of the virtual power plant, and adopts the block chain distributed system to perform transaction to monitor the execution state and the execution condition of the transaction contract in real time, so that the power utilization benefit, the productivity value and the settlement period of users in the virtual power plant are improved.
Drawings
FIG. 1 is a schematic diagram of a virtual power plant transaction management system according to the present invention.
Detailed Description
The following describes in detail a specific embodiment of a virtual power plant transaction management system according to the present invention with reference to the accompanying drawings.
As shown in fig. 1, the transaction management system of the present invention includes an internal electricity price determining stage, a user transaction matching stage, a contract determining stage, a transaction executing stage, and a transaction settling stage, wherein the transaction management system adopts a block chain distributed system to complete the internal transaction of the virtual power plant and the transaction with the power grid through the internal electricity price determining stage, the user transaction matching stage, the contract determining stage, the transaction executing stage, and the transaction settling stage, respectively; the block chain is used for recording the interaction information of each transaction participant in a chain structure in a general ledger distributed accounting mode, and the transaction information is properly stored in a block mode.
Determining the internal electricity price and the power supply and sale condition according to the total electricity purchasing power and the total electricity sale power of the virtual power plant:
if the total electricity selling power is equal to zero, the photovoltaic capacity of all users in the virtual power plant is insufficient or equal to zero, and all the users in the virtual power plant can only use the price p1Purchasing electrical energy from an electrical grid;
if the total electricity selling power is larger than zero and smaller than the total electricity purchasing power, the excess electricity needs to be sold when the partial users in the virtual power plant have excess capacity, the partial users have insufficient capacity and need to purchase electricity from the power grid, the virtual power plant selects the lowest price to perform internal transaction, the power grid stores the electricity, and the total electricity purchasing power is obtained when the total electricity purchasing power is insufficient in the virtual power plant,With p1The price is to buy the electric energy from the power grid, so that the electricity purchasing cost of the electricity purchasing user is as low as possible, the electricity utilization benefit of the electricity selling user is as high as possible, and the lowest price is lower than p1；
If the total electricity selling power is larger than the total electricity purchasing power, the excess electricity needs to be sold if the partial users in the virtual power plant have excess capacity, the electric energy needs to be purchased if the partial users have insufficient capacity, the total energy in the virtual power plant is excess and the electricity needs to be sold to the power grid, the virtual power plant selects the highest price to perform internal transaction, and the highest price is used for selling the electricity by p2Selling electric energy to the power grid at a price of more than p2。
And in the contract determining stage, determining a trading contract according to the user electricity price and the electric energy trading volume in the virtual power plant:
step (1): the transaction initiator selects a transaction object according to the internal electricity price and the electric energy transaction amount of the virtual power plant and sends a transaction invitation to the transaction object through the transaction platform; step (2): the transaction receiver receives the transaction invitation; and (3): the transaction receiver judges whether to carry out the transaction according to the transaction invitation, if the transaction is carried out, the step (5) is carried out, if the transaction is not carried out, a reply of refusing the transaction is sent to the transaction initiator within 60 minutes or the reply is not sent out beyond 60 minutes; and (4): sending a transaction receiving reply to the transaction initiator within 60 minutes, and proposing a transaction request of the transaction receiver; and (5): the two parties sign a transaction contract, store the contract into the blockchain in the form of codes, and record the contract into the data blocks of the blockchain after being broadcast and verified in the blockchain distributed system.
In the transaction execution stage, the transaction contract content intelligently completes a scheduling task, a user energy management system assists in controlling the power utilization behavior of a user according to the transaction contract content, a block chain distributed system monitors the execution state and the execution condition of the transaction contract in real time, and confirms that the transaction contract is triggered to execute a specific transaction or execute a specific action after the execution condition of the transaction contract is reached by inquiring external data.
In the transaction settlement stage, after the transaction is finished, the transaction settlement is carried out according to the transaction contract content and the actual transaction condition, and the transfer of the transaction funds of both parties is intelligently finished.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. The transaction management system is characterized by comprising an internal electricity price determining stage, a user transaction matching stage, a contract determining stage, a transaction executing stage and a transaction settlement stage, wherein the transaction management system adopts a block chain distributed system to complete internal transaction of the virtual power plant and transaction with a power grid after passing through the internal electricity price determining stage, the user transaction matching stage, the contract determining stage, the transaction executing stage and the transaction settlement stage respectively.
2. The virtual power plant transaction management system of claim 1, wherein the internal electricity price determination stage determines from the virtual power plant total purchased power and total sold power: if the total electricity selling power is equal to zero, the photovoltaic capacity of all users in the virtual power plant is insufficient or equal to zero, and all the users in the virtual power plant can only use the price p1Purchasing electrical energy from the electrical grid; if total power selling power is greater than zero and is less than total power purchasing power, surplus electric energy needs to be sold in the surplus user's productivity in virtual power plant, partial user's energy shortage need to electric energy is purchased to the electric wire netting, just in the virtual power plant total energy shortage need to electric energy is purchased to the electric wire netting, virtual power plant selects the minimum price to carry out inside transaction, with p1The price is the electric energy purchased from the power grid, so that the electricity purchasing cost of the electricity purchasing users is as low as possible, the electricity utilization efficiency of the electricity selling users is as high as possible, and the minimum price is lower than p1(ii) a If the total electricity selling power is larger than the total electricity purchasing power, the surplus electric energy needs to be sold when the partial user capacity in the virtual power plant is surplus, and the partial user capacity cannot be soldThe virtual power plant selects the highest price to carry out internal transaction and uses p to sell electricity to the power grid when the total energy in the virtual power plant is surplus enough to purchase the electric energy2Selling electric energy to the grid at a price, the maximum price being higher than p2。
3. The virtual power plant transaction management system of claim 2, wherein the contract determination stage determines a transaction contract according to the user electricity price and the electric energy transaction amount in the virtual power plant:
step (1): the transaction initiator selects a transaction object according to the internal electricity price and the electric energy transaction amount of the virtual power plant and sends a transaction invitation to the object through a transaction platform;
step (2): the transaction receiver receives the transaction invitation;
and (3): the transaction receiver judges whether to carry out the transaction according to the transaction invitation, if the transaction is carried out, the step (5) is carried out, if the transaction is not carried out, a reply of refusing the transaction is sent to the transaction initiator within 60 minutes or the reply is not sent out beyond 60 minutes;
and (4): sending a transaction receiving reply to the transaction initiator within 60 minutes, and proposing a transaction requirement of the transaction receiver;
and (5): the two parties sign a trading contract, store the trading contract into a block chain in the form of codes, and record the trading contract into data blocks of the block chain after being broadcast and verified in the block chain distributed system.
4. The virtual power plant transaction management system of claim 3, wherein the transaction execution stage intelligently completes scheduling tasks according to the content of the transaction contract, the user energy management system assists in controlling the power consumption behavior of the user according to the content of the transaction contract, the blockchain distributed system monitors the execution state and the execution condition of the transaction contract in real time, and confirms that the transaction contract is triggered to execute a specific transaction or execute a specific action after the execution condition of the transaction contract is reached by inquiring external data.
5. The virtual power plant transaction management system of claim 4, wherein in the transaction settlement stage, after the transaction is completed, the transaction settlement is performed according to the content of the transaction contract and the actual transaction condition, and the transfer of the transaction funds of both parties is intelligently completed.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111641207A (en) * 2020-06-03 2020-09-08 国网上海市电力公司 Virtual aggregation system and method for regional energy complex
CN116562914A (en) * 2023-05-25 2023-08-08 浙江浙能能源服务有限公司 Transaction management system for virtual power plant

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CN107565557A (en) * 2017-09-27 2018-01-09 赫普科技发展（北京）有限公司 A kind of virtual accumulator cell charging and discharging management system of block chain
CN107798437A (en) * 2017-11-10 2018-03-13 武汉大学 A kind of power trade business trading object based on Conditional Lyapunov ExponentP chooses optimization method
CN108520437A (en) * 2018-03-30 2018-09-11 天津大学 The VPP market mechanisms of wind electricity digestion are improved based on customer charge curve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006260088A (en) * 2005-03-16 2006-09-28 Chubu Electric Power Co Inc Power transaction evaluation support system and method, program, server and terminal
CN107565557A (en) * 2017-09-27 2018-01-09 赫普科技发展（北京）有限公司 A kind of virtual accumulator cell charging and discharging management system of block chain
CN107798437A (en) * 2017-11-10 2018-03-13 武汉大学 A kind of power trade business trading object based on Conditional Lyapunov ExponentP chooses optimization method
CN108520437A (en) * 2018-03-30 2018-09-11 天津大学 The VPP market mechanisms of wind electricity digestion are improved based on customer charge curve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111641207A (en) * 2020-06-03 2020-09-08 国网上海市电力公司 Virtual aggregation system and method for regional energy complex
CN116562914A (en) * 2023-05-25 2023-08-08 浙江浙能能源服务有限公司 Transaction management system for virtual power plant

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