Improvement of electrical power quality with distributed power flow controller with fuzzy PWM technique

Abstract

With the rise in the need of electricity globally and because of an enlargement in industry market and also due to the increase in urbanization, the nonlinear load in the power grid has considerably increased in the few decade. Now electricity has become an essential commodity in our life. To cater this growing demand of power energy, everyone is now a concern about the quality of electrical power. Frequent voltage fluctuations and power loss reduction are the major challenge in the power system sector. So, the quality of power is an issue which is equally important for both the end users and electric utilities. This paper gives a model of distributed power flow controller (DPFC) with fuzzy PI controller for control of electrical power system. In DPFC, multiple series converters and one shunt converter are used and also there is no DC link between them. The proposed model with fuzzy PWM has been implemented in MATLAB/Simulink environment and tested for 5 bus system.