Modulation compressor and air conditioning system having the same

The present invention is a shell for forming a closed space; Located within the shell, a compression unit which is capable of varying a capacity for compressing a working fluid; Located within the shell, the electromotive driving unit including a stator and a rotor, and drives the compression unit; And a rotating shaft for transmitting a rotating force of the electromotive driving unit to the compressing unit; a capacity modulation compressor comprising a rotor, the rotor core, conductive bars, and having a flux barriers, and permanent magnets, activated by induction torque generated by the conductive bars, and the magnetic flux by a magnetic torque produced due to the reluctance torque and the permanent magnet according to the barrier is operating at a synchronous speed, the capacity modulation compressor of the compression capacity of the working fluid compressed in the compression unit at the time of start-up is characterized in that the smaller capacity than a maximum compression capacity It provides. LSPRM, the capacity modulation compressor, a starting torque