A CONTROL SYSTEM FOR AN INVERTER AND A METHOD OF CONTROLLING AN INVERTER

摘要

An inverter for the control of an electrical machine with p phase windings employs a control sequence for control of the inverter output voltage in which an inverter control block delivers a complete range of switching sequences determined by a single variable parameter, alpha, the variable parameter providing continuous variation of the fundamental component of the inverter output voltage from zero to a maximum value, the switching sequence for each inverter switching leg having an even integer number of switching transitions per electrical cycle, such that 2p points per electrical cycle exist where the state of the switching devices of the inverter are predetermined and independent of the single variable parameter, alpha.