Investigations On Auto Disturbance Rejection Controller And Fuzzy Controller For Microturbine Based Distributed Generator

摘要

In recent electrical scenario, the power engineers have started to pay more attention to bridge the gap between generation and demand. Distributed Generation Technology has paved way for this task in recent decades. The micro-turbine generation system is regarded as one of the most promising ways of Distributed Generation. The micro-turbine is a complex thermal dynamic model. It is really a technical challenge to achieve accurate control because of its uncertainty and nonlinearity. In order to realize its steady control to the fullest extent, and its advantages among the Distributed Generation, researchers have started to focus on the performance of the Micro-turbine based systems at different operating conditions of the DG units. Hence they also attempt at designing an optimal controller for a Micro-turbine based DG unit. As a part of this research work, an Auto Disturbance Rejection Controller has been discussed in this project and its performance has been compared with Fuzzy controller.This paper deals with a 30kW micro-turbine and an analysis has been made on how an ADRC improves the stability of this system when compared to the PI and Fuzzy controllers. Load disturbance and short circuit are the two cases under which the performance analysis has been made in this work. MATLAB/Simulink software has been used to validate the superiority of the ADRC to the other controller