Passivity-Based Control and Current Balance Control of a Current-Source Pulse-Width-Modulation Rectifier

To improve the static performance, dynamic and current balance of a current-source PWM rectifier with multi-modules, comprehensive control method passivity-based is proposed in this paper. Current control, which based on AC voltage sequencing, has advantages being easy to implement not limited by number modules. Mathematical modelling, controller design, simulation verification were conducted successively, results show that low impact high power quality. At same time, module currents are well balanced, even under external disturbance, when using control.