Virtual power plant multi-objective optimization scheduling method considering output external characteristics

Abstract

The invention relates to a virtual power plant multi-objective optimization scheduling method considering output external characteristics. The method comprises the following steps: 1) defining the output external characteristics of a virtual power plant; 2) aggregating a plurality of distributed power supplies to construct a virtual power plant main body; 3) establishing a virtual power plant multi-objective optimization scheduling model by taking the optimized virtual power plant output external characteristics, the maximized virtual power plant operation income and the minimized virtual power plant carbon emission as scheduling objective functions; and 4) converting multiple objectives in the virtual power plant multi-objective optimization scheduling model into single objectives, linearizing nonlinear conditions, and solving by adopting a mixed integer linear programming method to obtain scheduling statistical information including a wind power photovoltaic output condition, charging and discharging time and power of energy storage equipment, and charging and discharging time and power of an electric motor car. Compared with the prior art, the method has the advantages of rapidness, reliability, high feasibility, wide application range and the like.

Description

technical field [0001] The invention relates to the field of optimal dispatching of virtual power plants, in particular to a multi-objective optimal dispatching method of virtual power plants considering external characteristics of output. Background technique [0002] A virtual power plant is a special type of power plant composed of different types of distributed energy sources. It is also a comprehensive energy management system. The virtual power plant uses advanced communication technology and software Distributed energy sources such as automobiles are aggregated and participate in the operation of the power market and power system. The virtual power plant manages and integrates different types of energy generation within its jurisdiction, and has similar dispatchability and controllability to traditional power plants. Therefore, how to construct a virtual power plant with similar output characteristics of traditional power plants. received widespread attention. [00...

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Problems solved by technology

[0003] As a way of aggregating distributed power sources, the virtual power plant’s output characteristics are based on the output characteristics of traditional power plants. The dual characteristics of power source and load; there are many other existing literatures that have established the optimal dispatching model of virtual power plants based on wind, wind and storage, and discussed the management structure, interaction mechanism and key technologies of virtual power plants; however, the above existing literatures have not considered Considering the external output characteristics of the virtual power plant as a whole, at the same time, the optimal operation of the virtual power plant needs to take into account the operating income of each distributed energy operator and the environmental benefits to the society. It is not comprehensive and in-depth to only consider the characteristics of its output , most of the existing literature takes economics and environmental protection as the objective function to study the optimal dispatching strategy of virtual power plants, but the research on the external characteristics of output is not sufficient, and further exploration is still needed

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