Modern rail electrification need stable and reliable rectification power supply with high efficiency and high powder

and a lot of harmonic caused by the rectification power supply will result in grid-side low power factor operation and grid-side current waveform distortion. Based on this

the circuit topology structure and mathematical model of the single-phase voltage PWM rectifier were analyzed by using an indirect control method based on the phase and amplitude control-PAC strategy in this paper. The method was to control the amplitude and phase of the fundamental component of the bridge side alternating voltage

and thus the grid-side current was indirect controlled. The simulation verified the grid-side power factor of the control strategy was over 0.99

and the gridside current THD is less than 5%

which can meet the requirements of dual energy flow and adjustable output voltage.