【摘要】 分析了电力系统负荷模型对电网频率稳定性的影响,以2009年华中电网一次调频及国内某电网机组跳闸实测数据为依据,对实验结果和仿真结果进行了对比研究。通过调整负荷频率系数,验证了负荷模型及其拟合参数的正确性和有效性。通过仿真证明目前国内频率稳定计算时采用的负荷频率系数偏保守。更多还原

【Abstract】 The impact of power system load model on frequency stability of power systems is analyzed.Based on the practical measured data of primary frequency regulation in Central China power grid in 2009 and the measured data of generation unit trip of a certain domestic power network,the comparative research between experimental results and simulation results is performed.By means of adjusting load frequency coefficient,the correctness and effectiveness of load model and its fitting parameters are verified.Simulation results show that the load frequency coefficient adopted in domestic frequency stability calculation biases towards conservative.更多还原