Performance of DSTATCOM control with Instantaneous Reactive Power Theory under ideal and polluted grid

This paper discusses the modeling and design of Instantaneous Reactive Power Theory for control of DSTATCOM. Conventional IRPT and modified version in the form of Complete Harmonic Elimination is discussed and modeled. Results with sinusoidal grid as well as non-sinusoidal voltages are presented in this paper. The compensator has the ability to improve power factor, regulate voltage, reduce harmonics in supply current and provide load balancing. Several aspects of control are compared in three phase, three wire system.