Voltage control of DC-DC Three level Boost converter using TS Fuzzy PI controller

TL;DR

This paper presents a novel TS Fuzzy PI controller for a DC-DC Three-level Boost converter, enhancing efficiency and disturbance rejection across a wide operating range.

Contribution

It introduces a TS Fuzzy PI control strategy specifically designed for the nonlinear TLBC, improving performance and robustness compared to traditional PI controllers.

Findings

Enhanced disturbance rejection capabilities.

Maintains performance over a wide operating range.

Flexible control adaptation demonstrated through simulations.

Abstract

Appropriate control contributes essentially in the design of efficient DC-DC converters. With this intention, a study deals with the synthesis of a controller for DC-DC Three-level Boost converter (TLBC), has been addressed. The studied TLBC, known as nonlinear system, has been locally modeled using transfer function models. For instance, PI controllers were designed using the local models, and then they were combined using Takagi-Sugeno fuzzy (TSF) approach to form a TSF-PI controller. Simulation tests show the flexibility of the proposed controller, its rejection capability to different disturbances, and its ability to achieve the performance specification overall the wide operating range of the system.