Transient Analisis of Modified Resonant Regulators with Time Delay Compensation for PMSM Torque Ripple Reduction

Resonant regulators are widely used in a different AC control system with a harmonical control or disturbing input. The traditional form of the resonant regulator has one feature. If the input signal of the resonant regulator is represented as a discrete values sequence, a time delay that is equal to half of the sampling period $T_{s}$ is formed at the regulator time response output. By this reason two types of modified transfer functions of the resonant regulator have been invented. The comparative analysis of all resonant regulator forms quality was represented on this article. Other authors completed the comparative analysis based on the logarithmic scale (bode diagrams). This article provides the analysis based on the permanent-magnet synchronous motor vector control system. The main analysis form that was used is a waveform of the control system.