摘要
为了提高电网频率测量的实时性,考虑系统频率变化趋势已知和未知2种情况,分别提出了2种简单实用频率实时测量方法。数学推理和仿真结果都表明,所提出的2种测频算法能实时地跟踪系统频率变化,所需的数据窗少,算法简单易于实现,具有较强的实时性。
Two simple and practical algorithms are put forward to improve real-time performance of power system frequency measurement responding to the situation of certain frequency trends and the situation of unknown frequency trends. Mathematical reasoning and simulation results show that the proposed algorithms can track the power frequency in real time, require less length of digital filter window, they are simple and easy to implement, and have good real-time character.
出处
《电网与清洁能源》
2009年第4期37-39,共3页
Power System and Clean Energy
关键词
电力系统
频率计算
实时测量
低通滤波器
power system
frequency calculation
real-time measurement
low pass filter
