Work

Fixed Switching Frequency Digital Sliding-Mode-Based Control of a Three-Phase Four-Wire AC–DC Rectifier With Power Factor Correction

Year: 2025

Type: article

Abstract: This article presents a fixed-frequency digital sliding mode control (SMC) technique to perform power factor correction (PFC) for electric vehicle (EV) charging applications. A three-phase four-wire boost rectifier with split-capacitor topology is selected. Using system model, three decoupled sliding mode controllers are designed to achieve loss-free resistor (LFR) behavior in each phase for PFC. The control law and the dynamic model of the rectifier are obtained by imposing sliding-mode regime in discrete time. To obtain simple expression of the duty cycle for ease of digital implementation in natural frame, the discrete-time model of the system has been used with reasonable approximations. Despite the theoretical stability of the closed-loop system, practical implementation of the control law is limited by digital control delays. To mitigate this problem in practice, a modified control law is proposed to ensure stability by scaling the weighted error in the expression of the control law resulting from the ideal SMC. The combination of the topology and the control method in the natural frame shows improved performance compared to the existing literature. Theoretical predictions are validated by several numerical simulations of the switched model and experimental measurements under different practical scenarios.

Source: IEEE Transactions on Industrial Electronics

DOI: 10.1109/tie.2025.3569951

Authors: Seyedamin Valedsaravi, Kuntal Mandal, Abdelali El Aroudi, Luis Martínez-Salamero

Institution: Universitat Rovira i Virgili

Language: English

Topic: Advanced DC-DC Converters

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Industry, innovation and infrastructure, Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $2,645