STUDY OF TOTAL HARMONIC DISTORTION IN THYRISTOR CONTROLLED REACTOR EMPLOYED IN STATIC VOLTAGE COMPENSATOR
Keywords:
CR, Active and Reactive power, Harmonics, Total Harmonic Distortion.Abstract
The present work is based on finding the range of firing angle of SCR used in Thyristor Controlled Reactor (TCR) at which harmonic distortion can be minimized. A three-phase controlled rectifier is designed and an accurate statistical method is proposed to calculate its input current, harmonic components and THD with simulation at various firing angles. Influence of firing angle variations on harmonic currents is investigated. Finally a harmonic current database of rectifier is obtained in terms of firing angle. The application of TCR based compensator is then implemented in the transmission line. Least harmonic distortion was observed in specified range of firing angle. The effectiveness of result has been shown using MATLAB/SIMULINK.
