Analysis of Power Quality Issues in Multi-Drive System

In This paper a multi drive system with common power converter is considered. For the multi-drive system, twoinduction motors with voltage source inverter is fed from common rectifier is connected. The effectiveness of both thesystem is analysed. First, the impact of unequal loading on the parallel drives system is analysed, and then a schemeis developed to improve the power quality of the grid system so that efficiency can be improve and harmonics can beremoved from the distribution system. Front end is used for converting AC to DC which is given to VariableFrequency Converter for converting DC to AC which is fed to the motor system. To remove the harmonics due therectifier, a shunt active power filter is implemented. The results obtained for the individual drive system and twodrive system is discussed and analysed.