High speed and high frequency operationkept under control at low system costThanks to BorgWarner’s field-proven multilevel inverter (MLI) technology, motorand generator speeds of up to 180,000 rpm can be safely controlled.With over 10 years of field experience in automotive applications, BorgWarnerhas successfully transferred its MLI technology to stationary industrial use in thisfirst forced-air-cooled solution.MLI technology makes the difference: high PWM frequency and the additional voltagelevel reduce air-gap flux pulsations, resulting in significantly lower rotor losses –delivering substantial system cost savings.MLI 60A integrates a passive AC front end (PFE) and a multilevel inverter intoone compact unit