【摘要】 常规光储电站调频控制方法多采用鲁棒控制技术，易忽略储能单元组动作优先级别高低的影响，导致控制后的频率偏差过高，控制效果较差。为此，提出基于动态分区和多估计准则的新型电力系统光储电站调频控制方法。参照光储电站功率出力的随机性，建立光储电站综合模型，并对光伏阵列状态进行估计，确定储能单元组的优先系数，判断动作优先级别，基于此，采用动态分区方法根据电力系统频率波动异常情况对其进行分区，依据分区结果，利用多估计准则估计频率变化范围，对可疑区域和扩展区域进行调频控制。仿真实验结果表明，在光伏渗透率为50%的情况下，应用所提方法获取的频率响应标准差仅为7.27×10^-3,能够有效抑制系统的频率波动，具有良好的控制性能。更多还原

【Abstract】 The conventional frequency modulation control method of optical storage power station mostly adopts robust control technology, which easily ignores the influence of the action priority level of the energy storage units, resulting in high frequency deviation after control and poor control effect. For this reason, a new frequency modulation control method for new power system optical storage power station based on dynamic partition and multiple estimation criteria is proposed. Referring to the randomness of the power output of the optical storage power station, the comprehensive model of optical storage power station is established, and the state of photovoltaic array is estimated, the priority coefficient of energy storage unit is determined, and the action priority level of the energy storage unit group is determined. Based on this, the dynamic partition method is used to partition the power system according to the abnormal frequency fluctuation, and the frequency variation range is estimated by using multiple estimation criteria according to the partition results, and perform frequency modulation control on suspicious areas and extencled areas. The simulation results show that the standard deviation of the frequency response obtained by the proposed method is only 7.27×10^-3 at 50% photovoltaic penetration, which can effectively suppress the frequency fluctuation of the system and has good control performance.更多还原