Abstract

This paper deal with comparative analysis of PI(proportional-integral) based STATCOM (Static Compensator) and DVR (dynamic voltage restorer) for power control of a prime mover operated at a constant speed isolated asynchronous generators (IAG) powering three-phase linear and non-linear load. Biomass, Biogas, gas-turbine, Diesel engine like SEIG stands for self-excited induction generator powered by prime mover operating at a constant speed used for isolated control generation has an issue with the voltage regulation. The DVR is a parallel voltage controller, which the system by adding voltage in series constant source and voltage at load. Other side STATCOM is a shunt voltage controller, which inject current into the system for maintain constant source voltage. The DVR and STATCOM controllers are modelled utilising a self-supporting DC bus and a voltage source converter (VSC) that utilises an IGBT (Insulated Gate Bipolar Junction Transistor) as its foundational component. The SEIG-based 7.5Kw, 415V, 50Hz producing system has Simulink, the toolbox for the power system block set (PSB), as well as DVR and STATCOM modelling and simulation are done in MATLAB.

Description