Model Predictive Control of Single-phase Four-level Hybrid-clamped Converters

The four-level hybrid-clamped converter is considered as a new multilevel converter, which is widely applied in AC motor driver systems and distributed generation systems. Model predictive control (MPC) has been widely utilized in multi-level converters due to easily including different control targets in the cost function of MPCs. To effectively control single-phase four-level hybrid-clamped converters, an optimized model predictive control algorithm has been presented in the paper. The steady-state and dynamic performances of the converter have been evaluated in Matlab/Simulink, the simulated results show the converter owns good steady-state performance and fast dynamic response with the proposed MPC algorithm, which verifies the effectiveness of the proposed MPC algorithm.