Development of single-loop current sensorless control for bidirectional three-phase PWM rectifier

摘要

This paper is a first attempt to analyze single-loop current sensorless control (CSC) method applied to three phase converter. The most suitable converter topology is selected among popular bidirectional AC-DC converters. The theory of CSC operation is described and evaluated by means of simulation. Results have confirmed the ability of controlling currents in rectifier and inverter mode and keeping inductor's average current over the track of reference value in discontinuous and continuous current mode.