Parameters and Volt-Ampere Ratings of a Floating Capacitor Open-End Winding Synchronous Motor Drive for extended CPSR

Abstract

This paper proposes an analytical method for the selection of the machine parameters and inverters power ratings of a synchronous motor operated in Open-End Winding (OEW) configuration with one of the two Voltage Source Inverters (VSIs) connected to a floating capacitor (FC) in order to meet a specific torque-speed profile. With the derived normalized expressions and curves all the suitable synchronous motors operated with an OEW-FC and a standard 2L-VSI drive can be easily compared according to the power rating and desired speed-torque characteristic.