电力系统频率测量的一种新方法  

New Frequency Measuring Method in Power System

作　　者：罗光富[1] 梅红伟[1] 纪延超[1] 

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,哈尔滨150001

出　　处：《电力系统及其自动化学报》2005年第2期5-8,共4页Proceedings of the CSU-EPSA

摘　　要：频率是电力系统中一个十分重要的特征量,频率测量是电力系统测量装置中十分重要的环节。提出一种新的频率测量方法,它具有实现方便、计算量小、精度高、实时性好等优点。通过数值仿真,分析了信号初相角、AD的位数和采样频率对频率测量精度的影响,证明该方法具有一定的实用价值。Frequency is a very important characteristic quantity in power systems. Frequency measuring acts a very important role in power system measuring equipments. This paper presents a useful method for frequency measuring. This method is easy to be implemented with small calculation, high precision and a good real-time performance. The validity of this proposed method is verified through numerical simulation in the case of taking account of original phase, the bits of A/D and the sampling frequency. The results prove that this method has some practical value.

关 键 词：电力系统 频率测量 数值仿真 

分 类 号：TM93[电气工程—电力电子与电力传动]