A Cuk Converter Based Fault Detection and Correction Topology for BLDC Drives in Electric Vehicles

摘要

Growing concern about the environment and fuel paucity leads to an increased usage of electric vehicles. Electric vehicles are those which functions based on electric drives. Due to the immense benefits of brushless dc motors, they replace induction motors in electric vehicles. A system is supposed to be consistent if it can manage with fault and functions perfectly as earlier in case of any faulty events. There are primarily two sorts of faults that happen across the switches in a control circuit, namely short circuit fault and open circuit fault. In this paper, a novel circuitry for fault recognition and rectification through the technique of employing redundant legs for both the front end converter and the full bridge inverter is presented. Compared to the contemporary methods, the proposed circuitry helps in safe detachment and reconfiguration of switches that undergoes any of the above stated faults. A protection circuit integrated in the topology helps in overvoltage and overcurrent protection. Usage of cuk converter as a front end converter makes the anticipated topology more proficient as it can operate in both the buck and boost modes, which is very vital in case of electric vehicles. This makes the topology more compatible to the applications. The simulation outcomes substantiate the consistency and viability of the anticipated topology.