系统负荷频率特性对电网频率稳定性的影响  

Impact of Load Frequency Characteristics on Frequency Stability of Power Systems

作　　者：赵强 张丽[2] 王琦[1] 李勇[3] 徐有平[3] 奚江惠[3] 李锴[3] 唐明明[4] 

机构地区：[1]中国电力科学研究院,北京市海淀区100192 [2]中国电力工程顾问集团华北电力设计院工程有限公司,北京市西城区100120 [3]华中电力调度通信中心,湖北省武汉市430077 [4]中华人民共和国国家知识产权局专利局,北京市海淀区100088

出　　处：《电网技术》2011年第3期69-73,共5页Power System Technology

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。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.

关 键 词：负荷频率特性 频率稳定 电力系统 

分 类 号：TM761.2[电气工程—电力系统及自动化]