Power Quality Improvement by Distribution Static Synchronous Compensator (D-STATCOM)

Abstract

Distribution static compensator is a shunt compensating device which is generally used to improve the quality of power in distribution systems by exchanging of reactive power with unbalanced and nonlinear load. DSTATCOM is a shunt device used to improve the power factor, maintain distribution voltage level, for load balancing and mitigation harmonics in a distribution network. Relevant solutions which are applied to improve power quality like harmonics, fluctuation of voltage, voltage deviation, unbalance of three phase voltage and current, frequency deviation. Different control schemes such as Phase Control Method (PCM), Synchronous Reference Frame Theory (SRFT), Instantaneous Reactive Power Theory (IRPT), Fryze Power Theory (FPT) and hysteresis current control strategy have are used for reactive power compensation with the help of Voltage Source Converter. In this project the results of source current of different control schemes are rrents are generated by control schemes have been dynamically tracked in a hysteresis band control. The performance of DSTATCOM for different control schemes is validated for load balancing and harmonic elimination by using simulation models in MATLAB/SIMULINK.