Influence of charging load on power measurement accuracy of electric vehicle
Aiming at the problem of low power metering accuracy in electric vehicle charging process,a power metering model combining wavelet transform and adaptive Kalman filter was proposed after analyzing the characteristics of electric vehicle charging load.In addition,an electric power measurement evaluation model is constructed to evaluate the accuracy of electric power measure-ment.Experimental results show that the proposed method improves the accuracy of power measurement by 0.1723％and the relative accuracy by 68.12％.In addition,the method has strong anti-harmonic interference,and can reduce the amount of harmonic change by more than 60.23％.Therefore,the electric power metering model constructed in the experiment has strong operability and applica-tion potential.
charging loadelectric power measurementwavelet transformadaptive Kalman filteringevaluation model
万方数据
维普
