Compensation of Voltage Flickerin Induction Motor Drive by Using Facts Devices in Conjunction with Voltage Source Converter

Abstract

The power quality issue will take new dimension due to power system restructuring and shifting trend towards distributed generation. Huge loss in terms of time and money have made power quality problems a major anxiety for modern industries with non-linear loads in electrical power system. Due to the latest achievements in the semiconductors industry and consequently the emergence of the compensators based on voltage source converters, FACTS devices have been gradually noticed to be used for voltage flicker compensation. This paper covers the contrasting approaches; dealing with the voltage flicker mitigation and assessing the related results in details. Initially, the voltage flicker mitigation, using Static Synchronous Compensator (STATCOM) has been performed. In this case, injection of harmonics into the system caused some problems were overcome. The obtained results show that STATCOM is very efficient and effective for the flicker compensation. Inverter systems are used in a wide variety of applications as a front-end power conditioning unit in Electric drives, Uninterruptible power supplies, High Voltage DC transmission, Active power filters, reactive power compensators in power systems, Electric vehicles, Alternate energy systems and Industrial processes. All the simulations have been performed on the MATLAB/Simulink Software