Development of power electronic distribution transformer using fuzzy logic control

Abstract

This paper presents the design and analysis of power electronic distribution transformer (PEDT). The PEDT is the new distribution transformer based on power high-frequency transformer and electronic converter. Operating the PEDT with the conventional proportional integral (PI) control does not give a satisfactory dynamic response and power quality. Improved power quality dynamic performance of PEDT can be achieved by using intelligent control. This study proposed a novel controller for a PEDT based on fuzzy logic control (FLC). The performance and power quality of the proposed PEDT are improved by replacing the conventional PI controller with the modern FLC. The proposed model was simulated using MATLAB/Simulink in order to evaluate the behavior of the PEDT. The model was tested under the study state and transient state. The results show that the PEDT with the proposed FLC gives a better dynamic performance and power quality compared to the PI controller.

Behavior of a Dual Stator Induction Machine Fed by Neutral Point Clamped Multilevel Inverter

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Development of an Adaptive Controller for Gridconnected Power Electronic Converter

“…Several control strategies have been proposed in the previous work in order to obtain a well-regulated output voltage from PEC converters characterized by time variant dynamics, variable supply voltage, and non-linear loads. Among these control, strategies are PID controller, fuzzy logic controller, fuzzy-PI techniques that found their application in power converters linear control like PID control, and neural network control [8][9][10]. The fuzzy logic control and neural network control have provided improved control action compared to the linear PID controller, but they usually have issues of developmental difficulties, high computational complexity, and large processing power.…”