Passive Fault-Tolerant Control of PWM Converter in a Hybrid AC/DC Microgrid

This paper aims to present a novel fault-tolerant control approach for an AC/DC pulse-width modulation (PWM) converter operating in a microgrid framework. A group of interconnected loads and renewable distributed energy resources such as wind farm, solar photovoltaic farm, and a battery energy storage are considered to form a microgrid. The control system related to the AC/DC converter aims at tolerating the fault effects due to power-loss malfunction in the solar photovoltaic system. To address this issue, a passive fault-tolerant control method based on fuzzy logic is proposed and the effectiveness of the designed scheme is demonstrated in an advanced microgrid benchmark model implemented in MATLAB/Simulink environment.