Model Predictive Voltage Control of Uninterruptible Power Supply with an Output RLC Filter

In response to the growing demand for advanced control techniques tailored to three-phase inverters equipped with output filters, aiming to produce high-quality voltage while minimizing total harmonic distortion (THD), model predictive control (MPC) emerges as a highly effective solution. Despite being an intuitive controller that is easily understandable and implementable, it has a significant drawback: MPC has mainly been applied to slow dynamic systems due to the substantial number of complex calculations needed to solve the optimization problem at each sampling interval. The objective of this paper is to implement MPC with both one-step and two-step prediction, considering linear and non-linear loads. The proposed control strategy is verified through simulation using MATLAB/Simulink tools.