发电机惯性时间常数对电网动态频率的影响  

Effects of generator inertial time constant on the dynamic frequency of the power system

作　　者：韩玉兰[1] 赵进全[2] 芦兴[3] 汪成根[2] 

机构地区：[1]西安邮电学院,陕西西安710061 [2]西安交通大学电气工程学院,陕西西安710049 [3]东北电力大学电气工程学院,吉林吉林132012

出　　处：《南昌工程学院学报》2007年第6期50-53,共4页Journal of Nanchang Institute of Technology

摘　　要：基于PSASP对某实际电网有功脱落后的动态频率进行了仿真,指出PSASP中发电机模型的惯性时间常数比实际电网运行时发电机的惯性时间常数偏小.通过改变发电机仿真模型的惯性时间常数,分析了惯性时间常数对电力系统动态频率的影响,并通过调节发电机模型的惯性时间常数,得出了与实际电网相吻合的动态频率仿真曲线.The paper simulates the dynamic frequency of a factual power network in active power tripping status by means of PSASP and points out that the inertial time constant of generator models in PSASP is smaller than the one in factual power networks. It also analyzes the effects of generator inertial time constant on the dynamic frequency of the power system by altering the former in PSASP and maps out the simulation curves of the dynamic frequency in agreement with that of the factual power networks.

关 键 词：发电机 动态频率 仿真 电力系统 惯性时间常数 

分 类 号：TM3[电气工程—电机]