Power Harmonic Emission Level Evaluation Based on Principal Component Analysis Regression Method

Abstract

Accurate harmonic emission level evaluation is the basis of distinguishing the responsibility of harmonic pollution between power supply system and consumer. A new harmonic emission level evaluation method based on principal component analysis (PCA) regression is proposed in this paper. Firstly, the principle of principal component analysis regression method is stated. Secondly, harmonic impedance of supply system is evaluated by principal component analysis regression method. Finally, harmonic emission level of supply system and consumer is calculated according to the harmonic impedance of supply system. This method has a high accuracy in harmonic emission level evaluation. The effectiveness of the proposed method was verified by computer simulation results.