Converter topologies with low passive components usage for the next generation of integrated motor drives

This paper analyses possible converter topologies suitable for the next generation of integrated motor drives and analyzes them in respect to their performance, hardware requirements (both semiconductors and passive devices) and efficiency, which determines the cooling requirements. Because in all the converter topologies an IGBT bridge inversion stage is used, similar performance is expected on the motor side and only analysis of the input side is carried out. These topologies are evaluated for a 4 kW power level and two topologies are proposed, one for low-cost and another for high-performance.