考虑频率变化暂态过程的自适应测频算法的研究  

Study on self-adaptive frequency measurement algorithm considering frequency transient change process

作　　者：姜惠兰[1] 单大鹏[1] 徐建强[2] 

机构地区：[1]天津大学电气自动化与能源工程学院,天津300072 [2]大庆石油管理局供电公司,黑龙江大庆163454

出　　处：《继电器》2001年第2期20-22,共3页Relay

摘　　要：针对电力系统微机自动安全控制装置对频率信号精度的要求 ,全面分析了频率变化暂态过程时的误差情况 ,研究推导出了基于傅氏测频算法的理论频率修正系数 ,给出了实用的自适应调整策略。通过数字仿真验证了该自适应测频算法的有效性和实用性。On the basis of precision requirement for frequency signal by computer automatic control system in power system, this paper overall analyzes error conditions in frequency transient change process, studies and derives Fourier algorithm based frequency amendment coefficient in theory, and provides practical self adaptive adjust strategy. Simulation has verified that self adaptive frequency measurement algorithm presented in this paper is effective and practical.

关 键 词：傅氏滤波 自适应 频率测量 算法 电力系统 暂态过程 

分 类 号：TM744[电气工程—电力系统及自动化]