CN110942339B - Virtual power plant transaction management method - Google Patents
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- 238000010248 power generation Methods 0.000 description 3
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Abstract
The invention provides a virtual power plant transaction management method, which comprises the following steps: (1): collecting data; (2): judging whether the total power of selling electricity is equal to zero, if so, using the price p 1 Purchasing electricity from a power grid; if not, entering the step (3); (3): judging whether the total power sold is less than the total power purchased, if so, selecting the lowest price internal transaction to enter the step (5) by p 1 The price is purchased from the power grid; if not, entering the step (4); (4): select the highest price internal trade and proceed to step (5) with p 2 The price supplies power to the power grid; (5): sending out a transaction invitation; (6): receiving a transaction invitation; (7): the receiver judges whether to carry out the transaction, if yes, the step (8) is carried out, and if not, the transaction is rejected or not replied; (8): sending out a receiving reply; (9): signing a contract and uploading information; (10): scheduling is completed intelligently; (11): and (6) settlement.
Description
Technical Field
The invention belongs to the technical field of virtual power plants, and particularly relates to a transaction management method for 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 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 energy and photovoltaic are influenced by objective factors such as geography and climate, and 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 a power grid is greatly impacted during grid connection, and people are looking for a mode of distributed new energy power generation to participate in a power market.
The invention provides a virtual power plant transaction management method, which selects different prices and transaction modes according to the actual conditions in a virtual power plant, improves the power utilization benefit and the productivity value of users in the virtual power plant, completes the settlement of electric power transactions and reduces the settlement period.
Disclosure of Invention
The invention provides a transaction management method for a virtual power plant, which can improve the electricity utilization benefit, the productivity value and the settlement period of users in the virtual power plant.
The invention specifically relates to a transaction management method for a virtual power plant, which comprises the following steps:
step (1): the virtual power plant acquires data, and total electricity purchasing power and total electricity selling power are obtained according to users of the virtual power plant;
step (2): judging whether the total electricity selling power is equal to zero or not, if yes, all the users in the virtual power plant can only use the price p 1 Purchasing electricity from a power grid; if not, entering the step (3);
and (3): judging whether the total electricity selling power is smaller than the total electricity purchasing power, if so, selecting the lowest price from the internal electricity prices of the virtual power plant to carry out internal transaction, and entering the step (5), wherein the users who do not complete the internal transaction use p 1 Purchasing electricity from the power grid at a price; if not, entering the step (4);
and (4): the total electricity selling power is greater than the total electricity purchasing power, and the interior of the virtual power plantThe total energy is excessive, electricity needs to be sold to a large power grid, the highest price is selected from the internal electricity prices of the virtual power plants for internal transaction, and the step (5) is carried out, and the number p of users who do not complete the internal transaction is 2 Price providing electrical energy to the grid;
and (5): 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;
and (6): the transaction receiver receives the transaction invitation;
and (7): the transaction receiver judges whether to carry out the transaction according to the transaction invitation, if the transaction is carried out, the step (8) 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 (8): sending a transaction receiving reply to the transaction initiator within 60 minutes, and proposing a transaction requirement of the transaction receiver;
and (9): both sides sign trade contracts and upload trade information to a trade platform to carry out whole-network broadcasting so as to facilitate the publicity of the trade;
step (10): the service provider reads the content of the trade contract, intelligently completes a scheduling task, and the user energy management system assists in controlling the power consumption behavior of the user according to the content of the trade contract;
step (11): and after the transaction time interval is ended, performing transaction settlement according to the content of the transaction contract and finishing the transfer of transaction funds.
When the total electricity selling power is larger than zero and smaller than the total electricity purchasing power, the lowest price transaction is selected from the electricity prices in the virtual power plant, and the lowest price is lower than the power grid price p 1 (ii) a When the total electricity selling power is larger than the total electricity purchasing power, the highest price is selected from the electricity prices in the virtual power plant, and the highest price is higher than the power grid price p 2 。
The internal electricity price is determined 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, all the users in the virtual power plantThe photovoltaic capacity is insufficient or equal to zero, and at the moment, all the users in the virtual power plant can only use the price p 1 Purchasing electricity from a power grid; if the total electricity selling power is larger than zero and smaller than the total electricity purchasing power, surplus photovoltaic electric energy needs to be sold when the productivity of partial users in the virtual power plant is surplus, electric energy needs to be purchased when the productivity of partial users is insufficient, electricity needs to be purchased from the power grid when the total photovoltaic energy in the virtual power plant is insufficient, at the moment, the lowest-price transaction is selected for internal transaction, the electricity purchasing cost of electricity purchasing users is enabled to be as low as possible, the electricity utilization benefit of the electricity selling users is as high as possible, and meanwhile, the electric energy is purchased from the power grid; if total power selling power is greater than total power purchasing power, surplus electric energy needs to be sold when the partial user productivity in the virtual power plant is surplus, electric energy needs to be purchased when the partial user productivity is insufficient, the total energy in the virtual power plant is surplus, electric energy needs to be sold to a large power grid, the highest price is selected for internal trading, and meanwhile, the electric energy is sold to the power grid.
Compared with the prior art, the beneficial effects are that: the trading management method selects different prices and trading modes according to the actual conditions in the virtual power plant, and improves the electricity utilization benefit and the capacity value of users in the virtual power plant.
Drawings
FIG. 1 is a flow chart of a virtual power plant transaction management method according to the present invention.
Detailed Description
The following describes in detail a specific embodiment of a system for detecting propagation characteristics of terahertz waves in a power polymer composite material according to the present invention with reference to the accompanying drawings.
As shown in fig. 1, the transaction management method of the present invention comprises the steps of: step (1): collecting virtual power plant users to obtain total electricity purchasing power and total electricity selling power; step (2): judging whether the total power sale power is equal to zero or not, if so, enabling all users in the virtual power plant to be only capable of selling the price p 1 Purchasing power from a power grid; if not, entering the step (3); and (3): judging whether the total electricity selling power is smaller than the total electricity purchasing power, if so, selecting the lowest price from the internal electricity prices of the virtual power plant to carry out internal transaction, and entering the step (5), wherein the users who do not complete the internal transaction use p 1 The price is purchased from the power grid; if not, entering the step (4); and (4): the total electricity selling power is larger than the total electricity purchasing power, the total energy in the virtual power plant is excessive, electricity needs to be sold to a large power grid, the highest price is selected from the electricity prices in the virtual power plant for internal transaction, and the step (5) is carried out, and the users who do not complete the internal transaction use p 2 Price providing electrical energy to the grid; and (5): 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 the transaction platform; and (6): the transaction receiver receives the transaction invitation; and (7): the transaction receiver judges whether to carry out the transaction according to the transaction invitation, if the transaction is carried out, the step (8) is entered, if the transaction is not carried out, a reply of refusing the transaction is sent to the transaction initiator within 60 minutes or no reply is sent outside 60 minutes; and (8): sending a transaction receiving reply to the transaction initiator within 60 minutes, and proposing a transaction request of the transaction receiver; and (9): both sides sign trade contracts and upload trade information to a trade platform to carry out whole-network broadcasting so as to facilitate the publicity of the trade; step (10): the service provider reads the content of the trade contract, intelligently finishes a scheduling task, and the user energy management system assists in controlling the power utilization behavior of the user according to the content of the trade contract; step (11): and after the transaction time interval is ended, transaction settlement is carried out according to the contents of the transaction contract, and the transfer of transaction funds is completed.
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 p 1 Purchasing electricity from a power grid;
if the total electricity selling power is larger than zero and smaller than the total electricity purchasing power, the excess photovoltaic electric energy needs to be sold if the productivity of partial users in the virtual power plant is excess, the electric energy needs to be purchased if the productivity of partial users is insufficient, and the electricity needs to be purchased from the power grid if the total photovoltaic energy in the virtual power plant is insufficient, then the lowest-price transaction is selected for internal transaction, 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 electricity purchasing cost is p for the power grid 1 The price is lower than the power grid price p 1 ；
If the total electricity selling power is larger than the total electricity purchasing power, part of users in the virtual power plant have excess capacity and need to sell excess electric energy, part of users have insufficient capacity and need to purchase electric energy, the total energy in the virtual power plant is excess and need to sell electricity to a large power grid, the highest price is selected for internal trading, and meanwhile p is used for selling electricity to the power grid 2 Selling electric energy at a price, the maximum price being higher than the grid price p 2 。
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 (2)
1. A virtual power plant transaction management method is characterized by comprising the following steps:
step (1): the virtual power plant acquires data, and total electricity purchasing power and total electricity selling power are obtained according to users of the virtual power plant;
step (2): judging whether the total electricity selling power is equal to zero or not, if so, enabling all users in the virtual power plant to be only capable of selling the electricity at the price p 1 Purchasing power from a power grid; if not, entering the step (3);
and (3): judging whether the total electricity selling power is smaller than the total electricity purchasing power, if so, selecting the lowest price from the internal electricity prices of the virtual power plant to perform internal transaction, and entering the step (5), wherein the users who do not finish the internal transaction use p 1 Purchasing electricity from the power grid at a price; if not, entering the step (4);
and (4): the total electricity selling power is larger than the total electricity purchasing power, the total energy in the virtual power plant is excessive, electricity needs to be sold to a large power grid, the highest price is selected from the electricity prices in the virtual power plant to conduct internal transaction, and the step (5) is carried out, and a user who does not complete the internal transaction uses p 2 Price providing electrical energy to the grid;
and (5): 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;
and (6): the transaction receiver receives the transaction invitation;
and (7): the transaction receiver judges whether to carry out the transaction according to the transaction invitation, if the transaction is carried out, the step (8) 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 (8): sending a transaction receiving reply to the transaction initiator within 60 minutes, and proposing a transaction requirement of the transaction receiver;
and (9): both sides sign trade contracts and upload trade information to a trade platform to carry out whole-network broadcasting so as to facilitate the publicity of the trade;
step (10): the service provider reads the content of the trade contract, intelligently completes a scheduling task, and the user energy management system assists in controlling the power consumption behavior of the user according to the content of the trade contract;
step (11): and after the transaction time interval is ended, performing transaction settlement according to the content of the transaction contract and finishing the transfer of transaction funds.
2. The method of claim 1, wherein when the total power sale is greater than zero and less than the total power purchase, a lowest price is selected from the internal prices of electricity in the virtual power plant, and the lowest price is lower than the grid price p 1 (ii) a When the total electricity selling power is larger than the total electricity purchasing power, the highest price is selected from the internal electricity prices of the virtual power plant, and the highest price is higher than the power grid price p 2 。
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| WO2011073020A2 (en) * | 2009-12-18 | 2011-06-23 | Siemens Aktiengesellschaft | Method for distributing electrical energy in an electrical grid having a plurality of electricity consumers |
| CN107480847A (en) * | 2017-06-20 | 2017-12-15 | 郑州大学 | Energy block chain network and the virtual plant operation based on the network and dispatching method |
| CN109784926A (en) * | 2019-01-22 | 2019-05-21 | 华北电力大学（保定） | A kind of virtual plant internal market method of commerce and system based on alliance's block chain |
| CN110245790A (en) * | 2019-05-31 | 2019-09-17 | 国网上海市电力公司 | The accurate adjusting method of region load based on virtual plant technology |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011073020A2 (en) * | 2009-12-18 | 2011-06-23 | Siemens Aktiengesellschaft | Method for distributing electrical energy in an electrical grid having a plurality of electricity consumers |
| CN107480847A (en) * | 2017-06-20 | 2017-12-15 | 郑州大学 | Energy block chain network and the virtual plant operation based on the network and dispatching method |
| CN109784926A (en) * | 2019-01-22 | 2019-05-21 | 华北电力大学（保定） | A kind of virtual plant internal market method of commerce and system based on alliance's block chain |
| CN110245790A (en) * | 2019-05-31 | 2019-09-17 | 国网上海市电力公司 | The accurate adjusting method of region load based on virtual plant technology |
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