摘要
讨论了一种基于滑动窗口的电量测量算法,并在此基础上推导了具有最小计算量的递推算法,最后得到了一种可克服累积误差的快速算法。该算法基本是建立在离散傅里叶变换之上的一种递推算法,保留了频域法的优点的同时又克服了传统频域法需要大量计算的缺点。该算法较大地提高了计算效率和算法实时性,可被应用于实时控制、无功功率和谐波补偿、以及功率和能量实时计算等诸多领域。
This paper discusses an algorithm based on a sliding window, and it also proposes two algorithms that are the recursive algorithm with the least calculations and the fast algorithm which can avoid the cumulative errors. It is a recursive algorithm based on Discrete Fourier Transform （DFT）, which keeps the virtue of frequency-domain and overcomes the disadvantages of traditional frequency-domain that needs lots of calculations. This algorithm can enhance the computational efficiency and time response greatly. Therefore, it can be used for the real-time control, compensations of reactive power and harmonics, real-time calculation of power and energy, etc.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第10期63-65,75,共4页
Power System Protection and Control
关键词
谐波
电量
测量
瞬时值
误差
算法
harmonics
electrical quantities
measurement
instantaneous value
error
algorithm
