Research on Impact Load Measurement Method and Algorithm

Aiming at the problem that impact load affects energy metering, a method and algorithm for impact load measurement are proposed. The point-by-point power calculation process of impact load and the specific parameters of impact load filter algorithm based on IIR low-pass filter are given. For the key parameters affecting the accurate measurement of impact load, the DC component calibration algorithm, voltage and current gain calibration algorithm, voltage and current offset calibration algorithm, active and reactive gain calibration algorithm, active and reactive offset calibration algorithms are proposed respectively. The impact load experiment scheme is designed, and the error experiments of the State grid meter algorithm and the paper algorithm are carried out respectively. The experimental results show that the overall measurement error of the proposed algorithm is better than the ordinary State Grid meter algorithm, which can accurately measure the impact load electrical energy.