Optimal configuration method and device for hybrid energy storage capacity of microgrid energy storage power station

Abstract

The invention relates to an optimal configuration method and device for the hybrid energy storage capacity of a microgrid energy storage power station, and belongs to the technical field of configuration optimization for a microgrid energy storage system. The optimal configuration method comprises the steps of determining the structure of a pre-installed microgrid energy storage power station andpower supply reliability indexes, determining to take the minimum whole life cycle cost of hybrid energy storage equipment as an objective function and constraint conditions, and solving an optimal configuration model by adopting a chaotic cloud particle swarm algorithm integrating an AEA algorithm. The optimal configuration method overcomes the dependence on the initial value, improves the optimization performance of the algorithm and finds the optimal solution. In addition, the capacity and quantity, which are displayed by the optimal solution, of storage batteries and supercapacitors are reasonable in configuration, the whole lift cycle cost of the hybrid energy storage equipment is enabled to be the lowest on the basis of meeting safe, reliable and stable operation of the system, and the economy of the hybrid energy storage equipment in the microgrid is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of configuration optimization of a microgrid energy storage system, and in particular relates to a hybrid energy storage capacity optimal configuration method and device for a microgrid energy storage power station. Background technique [0002] With the increasingly serious energy and environmental problems, the issue of energy conservation and emission reduction has received widespread attention. The proportion of clean energy such as wind energy and solar energy in my country's primary energy has gradually increased, and corresponding wind power and photovoltaic power generation have also been vigorously developed in recent years. Wind power and photovoltaic power generation mainly depend on changing weather conditions, and the output power of their power generation has problems such as volatility, randomness and intermittency. In order to solve this problem, a micro-grid came into being. A micro-grid is a...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a hybrid energy storage capacity optimization configuration method and device for a microgrid energy storage power station, which is used to solve the problem of hybrid energy storage devices caused by unreasonable capacities and quantities of configured batteries and supercapacitors in the prior art. The whole life cycle cost of energy storage is still relatively high, which is not conducive to the economical problems of hybrid energy storage devices in microgrids

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