摘要
为了准确定位谐波源,提出一种基于谐波视在功率贡献量大小的定位方法。该方法根据谐波源在公共连接点(PCC)处视在功率贡献量的网络拓扑,应用随机矢量协方差特性评估方法和波动量法对谐波阻抗进行估计,建立谐波源作用在PCC处贡献量的数字模型。通过仿真验证,证明了该方法定位谐波源的准确性,并具有较好的鲁棒性。
In order to locate the harmonic source accurately, a method of positioning based on the apparent power contribution of harmonic is proposed. Based on the network topology of the power contribution at the point of common coupling（PCC）, the method is used to estimate the harmonic impedance by using the stochas- tic vector covariance characteristic evaluation method and the fluctuation method, and the mathematical model of the contribution of the harmonic source at the PCC is established. The simulation results show that the pro- posed method can locate the harmonic source and has good robustness.
出处
《测控技术》
CSCD
2017年第5期16-20,共5页
Measurement & Control Technology
关键词
谐波源定位
视在功率贡献量
阻抗估计
协方差特性评估方法
波动量法
harmonic source location
apparent power contribution amount
impedance estimation
covariance characteristics evaluation method
waving method
