Modeling of split capacitor based dstatcom & voltage balancing scheme for load compensation

In this paper Distribution static compensator (DSTATCOM) is realized with split capacitor configuration using state space modeling. This inverter topology is able to compensate the zero sequence components as well as achieve the harmonic compensation, power factor correction & load balancing. The significant problem faced by this topology is capacitor voltage unbalance. To overcome this drawback two quadrant chopper control scheme is used. The compensator reference currents are generated using instantaneous symmetrical component theory while the hysteresis pulse width modulation (PWM) is used to control inverter switching. The derived model has been analyzed by simulation studies through MATLAB.