New Method to Reduce Current and Voltage Distortions Under Overmodulation for Matrix Converters

Abstract

This study presents a new method to reduce current and voltage distortions for matrix converters in the overmodulation range. Analytical overmodulation conditions for input currents and output voltages are derived. Then, a carrier-based overmodulation method is proposed to reduce distortions by appropriately adjusting reference voltages. Simulation results confirm that the distortions of input currents and output voltages can be reduced using the proposed method.

Loss and Temperature Evaluation of Unbalanced Three‐Phase Inverter Driven Two‐Phase PWM Scheme Using Variable Switching‐Pause Period

“…The switching loss can be reduced by reducing the number of switching cycles compared with that in the three-phase PWM scheme [16]. The two-phase PWM scheme has been used in three-phase inverters as well as matrix converters [17] and Y-inverters [18].…”