Two motors drive system topologies with five-leg inverter

This paper presents three motor drive system topologies using five-leg converters. The proposed configurations present lower dc-link voltage than their counterparts found in the literature. All the topologies use ten power switches and does not have any connection to the mid-point of the capacitor bank. Model, pulse-width modulation techniques and control strategies are investigated. The main characteristics of the drive systems are also presented. Experimental and simulated results demonstrate the feasibility of the systems.