Patent ID: 7202626
Filing Date: 2007-04-10
Classification: F25B,H02M,H02P,Y02B

Abstract:
1. A drive system for a compressor of a chiller system, the drive system comprising: a variable speed drive, the variable speed drive being configured to receive an input AC power at a fixed input AC voltage and a fixed input frequency and provide an output power at a variable voltage and variable frequency, the variable voltage having a maximum voltage greater in magnitude than the fixed input AC voltage and the variable frequency having a maximum frequency greater than the fixed input frequency, the variable speed drive comprising: a switched reluctance motor having a plurality of stator windings, each stator winding of the plurality of stator windings connected in series between the inverter leg first and second IGBT power switches of the inverter stage and powered by the output power from the inverter stage, the switched reluctance motor being connectable to a compressor of the chiller system to power the compressor.