Abstract
At present, China’s installed renewable energy capacity is growing at a fast rate, and reasonable allocation of the wind turbine, photovoltaic, and energy storage capacity is a prerequisite to ensure the economic and reliable operation of the system. For the park-type grid-connected operation of the wind-photovoltaic storage system, in order to improve the stability of the system and make full use of the distribution grid resources, the operation strategy of the park-type wind-photovoltaic storage system is proposed, and the model of wind-photovoltaic storage is established respectively, and the economy and reliability of the system are considered comprehensively. The objective function of capacity configuration and the constraints of power system operation specification are set up, combined with the time-of-use electricity price, the charging of energy storage battery is preferred at the low valley, and the objective function is solved by a genetic algorithm according to the energy use characteristics of the park, and three configuration schemes are selected from the Pareto front solution. Finally, through the typical day analysis, the results show that the wind-photovoltaic storage capacity allocation method can effectively improve the economy of park operation and the quality of the park power supply.
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