Abstract

This paper presents an improved control strategy combining Selective Harmonic Elimination (SHE) and Finite Control Model Predictive Control (FCS-MPC) applied to a Five-Level Active Neutral Point Clamped Converter (5L-ANPC). The proposed SHE-MPC approach achieves both the balancing of floating and DC-link capacitors and the suppression of low-order harmonics, which are critical for medium voltage and high power applications. By dynamically adjusting the optimal SHE-PWM switching pattern during transient conditions, the controller ensures a fast system response and minimizes harmonic distortion. Under stationary conditions, the method eliminates low-order harmonics, improving overall power quality. Simulation results demonstrate the superior performance of SHEMPC in both steady-state harmonic mitigation and transient response, offering significant advantages in system robustness and efficiency compared to FCS-MPC.