Virtual power plant multi-energy complementary source load storage optimal configuration method

Abstract

The invention relates to a virtual power plant multi-energy complementary source load storage optimal configuration method, which comprises the steps of establishing a virtual power plant operation cost model according to a predicted load demand, an internal source equipment capacity and an energy storage equipment capacity; establishing an internal distributed energy operation model according tothe generation of the cooling, heating and power between the internal distributed energy and the energy consumption; then carrying out deployment optimization on distributed energy in the virtual power plant by applying an evolutionary particle swarm algorithm, an operation cost model of the virtual power plant and a distributed energy operation model; carrying out deployment optimization on distributed energy in the virtual power plant; and finally, determining an operation scheme with the lowest relative operation cost according to the day-ahead prediction load demand, the real-time electricity price of the external power grid and the operation parameters of the virtual power plant source equipment. According to the method, the optimal deployment scheme of the distributed energy in the virtual power plant operation model can be comprehensively, accurately and conveniently calculated, and method guidance is provided for benefit maximization of the virtual power plant and adjustment ofthe power grid.

Description

technical field [0001] The invention relates to an energy allocation technology, in particular to a method for optimal allocation of sources, loads and storages in a virtual power plant with multi-energy complementarity. Background technique [0002] Virtual power plants can realize the aggregation and coordination optimization of distributed power sources, energy storage systems, controllable loads, electric vehicles and other distributed energy sources through advanced information and communication technology and software systems, so as to serve as a power source for a special power plant to participate in the power market and grid operation Coordinate management system. [0003] In modern power applications, the application of distributed energy is more and more extensive. Due to the randomness and uncertainty of distributed energy, its output is uneven, its harmonic content is large, and it is difficult to coordinate and utilize it. As the penetration rate of distribut...

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Problems solved by technology

[0005] Due to the unbalanced supply and demand of loads, high wind and light curtailment phenomena are caused, resulting in low energy utilization

In addition, gas turbines and other equipment will generate heat energy while generating electric energy, which will cause a large amount of energy waste if they cannot be used rationally.

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