Abstract

This paper presents a model-free predictive current controller (MFPCC) based on ultra-local model for three-phase voltage source PWM rectifier (VSR), which has an inherent rapid dynamic response as a result of the MPC controller, as well as robust control performance due to use of the ultra-local model. The proposed approach, which utilizes model-free predictive current controllers, does not require any plant identification while ensuring the stability and the robustness of the control synthesis. Simulation and experimental results on a 3-phase/150V VSR indicate that, with a simple control structure, insensitivity to power supply fluctuations and to large load variations is ensured.