ENERGY STORAGE BASED DC VOLTS BOOST FOR TRANSIENT HIGH-SPEED/HIGH-TORQUE OPERATION OF VARIABLE FREQUENCY DRIVE CONTROLLED MOTORS

A process for transiently increasing performance of an electric motor includes boosting a DC link voltage of a rectifier-fed variable frequency drive of the electric motor by using an energy storage system. The energy storage system delivers power directly to a DC link of the variable frequency drive. The energy storage system can be at least one of a battery bank, capacitor bank and a flywheel. Feedback from the DC link is delivered to a DC link controller.