摘要：【中文】本发明公开了一种抽水蓄能电站区域负荷频率控制方法和系统，包括建立考虑非线性环节的两区域再热式汽轮机组负荷频率控制模型；建立分数阶PID控制器；实现基于分数阶PID控制器的两区域再热式汽轮机组负荷频率控制；基于抽水蓄能电站的两段式工作模型，实现抽水蓄能电站发电和抽水工况下的分数阶PID负荷频率控制。本发明为抽水蓄能电站负荷频率控制方法，考虑了实际电力系统中存在的非线性因素，克服了传统线性模型的不足。其设计的分数阶PID负荷频率控制在面对大功率缺额仍可获得较好的精度、控制效果和鲁棒稳定性。本发明通过分数阶PID控制器与抽水蓄能电站负荷频率控制的有效结合，进一步提高了电网频率控制的可靠性和电力系统运行的稳定性。 【EN】The invention discloses a method and a system for controlling regional load frequency of a pumped storage power station, which comprises the steps of establishing a load frequency control model of a two-region reheat type steam turbine set considering a nonlinear link; establishing a fractional order PID controller; the load frequency control of the two-area reheating type steam turbine unit based on the fractional order PID controller is realized; based on a two-stage working model of the pumped storage power station, fractional order PID load frequency control of the pumped storage power station under the power generation and water pumping working conditions is realized. The invention discloses a load frequency control method for a pumped storage power station, which considers nonlinear factors existing in an actual power system and overcomes the defects of a traditional linear model. The designed fractional order PID load frequency control can still obtain better precision, control effect and robust stability in the face of high-power shortage. The invention further improves the reliability of the power grid frequency control and the stability of the operation of the power system by effectively combining the fractional order PID controller with the pumped storage power station load frequency control.