The Harmonic Impedance Analysis and Assessment Method Based on the Generalized Ridge RegressionChinese Full Text
YANG Jing 1,YANH Yi-xiong 2,XU Huan-huan 3,YAO Shu-jun 1,MA Lu-yao 1,LIU Long-hui 1(1.School of Electrical and Electronic Engineering,North China Electric Power University, Beijing 102206,China; 2.Guangxi Electric Power Company,Lianyungang Sub-company,Lianyungang 538000,China; 3.School of Business and Management Engineering,Qingdao University,Qingdao 266017,China)
Abstract: The method of using the generalized ridge regression in system harmonic impedance analysis and the harmonic evaluation has been studied.Based on the equivalent circuit of the system, users can obtain system harmonic impedance,the background harmonic and the analytical expression of the common connection point harmonic.The harmonic voltage and current data can be got at the common connection point.System harmonic impedance and background harmonic can be used as the regression coefficients of generalized ridge regression.Using direct method can obtain estimation parameters of the generalized ridge regression,and calculate the harmonic e mission levels.The method, which is better than the partial least squares method,can overcome the influence caused by the abnormal data on regression coefficient,and its ridge estimators have better robustness.Using MATLAB simulation software,the simulation results prove the effectiveness of this method and accuracy.
Keywords：
power system; harmonic impedance; harmonic assessment; generalized ridge regression; partial least square method;
- DOI：
10.13357/j.cnki.jep.002086
- Series：
- Subject：
- Classification Code：
TM711
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