A virtual power plant energy management method based on cooperative game

Abstract

A method for energy management of a virtual power plant based on a cooperative game, comprising the following steps: S1: obtaining the number of prosumers in a virtual power plant system and information on the distributed equipment equipped with them; S2: obtaining the operation of each distributed equipment of the prosumers in the virtual power plant Constraints; S3: Read the on-grid electricity price and electricity purchase price for the virtual power plant, and establish the income function of any alliance in the power plant under the cooperation mode; S4: Obtain the output probability density function of each renewable energy source in the power plant, and establish the energy of the virtual power plant Optimize the objective function and its constraints; S5: Optimize the objective function of the virtual power plant to obtain the output power and load power of each prosumer when the virtual power plant alliance achieves the maximum benefit; S6: Calculate the actual income of the grand alliance; S7: Find Take the distribution strategy with the highest satisfaction of each alliance under the major league; S8: Calculate the income distribution plan of the major league. The invention effectively improves the overall benefit of the virtual power plant.

Description

technical field [0001] The invention relates to the technical field of smart grid energy management, in particular to a virtual power plant energy management method based on a cooperative game. Background technique [0002] With the rapid development of distributed energy sources such as energy storage, photovoltaic power generation, flexible loads, and electric vehicles, the passive management mode of traditional power systems has been unable to achieve effective management of distributed energy sources, nor can it guarantee the power system's performance when distributed power sources are added. Safety and reliability. Virtual power plant (VPP) technology integrates various types of distributed energy into a whole to participate in the power market through advanced control, metering, communication and other technologies, and realizes a system of multiple energy sources in the power plant through the energy management system Optimize the operation to realize the safe appli...

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Problems solved by technology

[0003] However, the number of distributed energy sources in the virtual power plant is large and scattered, and distributed energy sources such as photovoltaics, wind turbines, and elastic loads have strong output uncertainty

At the same time, there are inconsistencies in the interests and goals between the power generation / consumption entities within the virtual power plant and the power plant

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