Fault Identification Technique to Identify Open Circuit Fault Switch Location Based on SPMC Boost Rectifier Circuit Using MATLAB Simulink

This paper presents a comprehensive fault identification technique for a single-phase matrix converter (SPMC) based boost rectifier circuit. The primary objective of the fault identification technique is to identify the faulty switch during an open circuit fault (OCF) using diagnostic techniques monitoring the input supply's cycle, the output voltage, and the inductor current magnitude as well as the current and voltage measurement to obtain the binary code. To interpret the fault occurrence, a binary code is created to interpret the faulty switch, which serves as a signal to a controller to initiate the appropriate Current Option Route (COR) strategy. This configuration is intended to reroute current to operational switches in the condition of an Open Circuit Fault (OCF) and maintain the necessary current direction in the circuit. Using MATLAB Simulink, the switching operation of the COR approach and fault identification technique is presented. The successful generation and application of the binary code for fault identification and correction highlight the robustness and practical utility of the proposed method in enhancing the reliability of the SPMC-based boost rectifier system.