This paper describes the enhancement of Power quality in a power system by reducing the harmonics using Series Compensation. Series Compensation is used to protect the sensitive load from the harmonics generated by the nonlinear load and increases the power quality of a power system. A control strategy used for Series Compensation is based on the synchronous d-q-o transformation. Simulation results shows a comparative study of output voltage and current across a sensitive load without and with Series Compensation. This method of  reducing the harmonics by voltage injection using Series Compensation is more effective. Simulation results using matlab simulink have been presented