Buck-Boost Converter: A Vital Solution to Unwanted Tripping of VFDs due to Voltage Disturbances in Industrial Plants

Variable frequency drives (VFDs) are used to drive motors with a wide range of industrial applications. But the phenomenon of unwanted tripping in VFDs hinders the performance and also affects the utilities related to it. VFDs are sensitive to momentary voltage disturbance and it's tripping leads to huge loss to the consumer. Thus, devices such as buck-boost converter can be used to solve this problem up to the greatest extent. Buck-boost converter maintains the output voltage to the required level by sustaining the necessary DC bus voltage. It absorbs or supplies the DC voltage according to the disturbances occurring in the system. This paper represents a MATLAB simulation approach for mitigating the voltage disturbance impact on Variable Frequency Drives using the buck-boost converter.