In order to improve the frequency regulation performance of provincial power grid, considering the security and stability of provincial power grid under the CPS assessment standard and based on the characteristics of multi-stage participation of renewable energy in regulation, an evaluation method of CPS load frequency regulation capacity of provincial power grid with renewable energy was proposed. Firstly, the operation characteristics of the provincial grid system are analyzed, and the frequency regulation models of photovoltaic, biomass, diesel, energy storage and wind power are established. Then, the power deviation control of provincial power grid under CPS standard is studied. Finally, a fuzzy logic based method for evaluating CPS frequency regulation capability of provincial power grids is proposed, and an improved sine and cosine optimization algorithm is used to solve the evaluation model to evaluate the frequency modulation capability of provincial power grids considering the CPS assessment criteria.
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Li et al. (2024) studied this question.
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