Uninterruptible Power Supply Employing Single-Phase Matrix Converter Topology

Abstract

This paper presents an Uninterruptible Power Supply (UPS) system using a Single-Phase Matrix Converter (SPMC) topology. The proposed UPS system is called UPS- SPMC. In this work, the conversion of Alternating Current (AC) to Direct Current (DC) and vice versa using the proposed UPS-SPMC is investigated. The main objective of this work is to simplify the circuit topology of the UPS system. The SPMC is opted to replace both rectifier and inverter circuits that typically used in UPS systems. Integrated switching algorithms for the proposed UPS-SPMC to work in rectifier-mode (during normal operation) or inverter-mode (during interruption) have been developed in MATLAB/ Simulink. Selected simulation results are presented to verify the proposed system.