系统频率测量方法研究及基于DFT的测频算法仿真  

System frequency measurement method and DFT-based frequency measurement algorithm simulation

作　　者：苏东波[1] 金恩淑[1] 汝晓鹏[2] 

机构地区：[1]东北电力大学,吉林吉林132012 [2]海军航空工程学院,山东烟台264001

出　　处：《电子设计工程》2013年第5期75-77,80,共4页Electronic Design Engineering

摘　　要：频率是电力系统运行质量和安全情况的最主要标志之一,集成保护与控制系统需集成低频减载等控制方式,测频是低频减载算法的核心,本文较全面地阐述了电力系统频率测量的重要意义和这些年来的研究成果。以测频主算法的数学原理为线索,对现有的各种测频算法进行了分类和评述,并提出了频率测量的发展方向。在考虑到现有条件的基础下,考虑算法的实时性以及精度问题,选用基于DFT算法,并对该算法进行了matlab仿真。The frequency is one of the most important signs of power system operation quality and security situation, integrated protection and control systems need to be integrated UFLS control, frequency measurement is the core frequency load shedding algorithm. This paper gives a comprehensive overview of the significance of the power system frequency measurement and research in the recent years. Mathematical principles of the measured frequency of the main algorithm for clues, classified and commented on various frequency measurement algorithm. Take the basis into account the existing conditions, and consider the algorithm for real-time and accuracy problems, Selection of the DFF algorithm matlab simulation of the algorithm.

关 键 词：电力系统 频率 测频算法 MATLAB仿真 

分 类 号：TM746[电气工程—电力系统及自动化]