An Instantaneous Harmonic Decomposition Technique for Three-phase Current Based on Multiple Reference Coordinates

Current harmonic decomposition is important to power systems. Current signal is classified into stationary and non-stationary signal according to whether the parameters change with time. This study focuses on the instantaneous harmonic decomposition of three-phase permanent magnet synchronous motor currents in non-stationary process. First, based on the definition of the instantaneous frequency in...