Patent ID: 8935924
Filing Date: 2015-01-20
Classification: F01D,F05D

Abstract:
1. A compressor driving device configured to generate a driving power to drive a compressor, the compressor being connected to a multi-shaft gas turbine having a high pressure side shaft and a low pressure side shaft, and the low pressure side shaft of the gas turbine being connected to the compressor, wherein the compressor driving device comprises: a motor configured to be coupled the compressor; and a control section configured to control the motor to generate a rotation speed of a turning of the compressor during a period when normal operation of the gas turbine is stopped, wherein the control section is further configured to carry out a helper motor drive mode in which an assist torque is generated by the motor in response to a detection signal for assisting a torque of the gas turbine when a torque generated by the gas turbine is lacking, during a period when the gas turbine is in normal operation.