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Evaluation method of renewable energy accommodation capacity based on time series production simulation

With the continuous expansion of China’s renewable energy installed capacity, the randomness and volatility brought about by renewable energy power generation have put forward new requirements for the safe and stable operation of the power grid. Accurately evaluating the accommodation capacity of renewable energy in the power grid has important practical significance for improving the power quality and safety in the power grid. Based on the traditional time series production simulation model, this paper introduced a time series production simulation model considering power flow constraints. After linearizing the model, a time series production simulation model considering linear power flow constraints in key time periods is obtained. Considering the critical time section can not only ensure the safety of power grid operation, but also improve the calculation efficiency. Based on the load data of each substation in the Zhangjiagang area on a typical day in 2020, the method introduced in this paper is used to evaluate the accommodation capacity. The method is used for simulation evaluation, which provides an effective foundation for the planning of renewable energy and power system in this region.