| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter control device which performs stable torque control without an operation stop by step-out due to erroneous detection of a position of a magnetic pole against an increase of a regeneration zone at overloading, in a control device of a one-piston rotary compressor using a brushless DC motor. <P>SOLUTION: A torque gain setting means 12 is provided for detecting the frequency of regeneration voltage detection by a regeneration voltage detection means 11, and setting a torque gain on the basis of the detected value, and a detection zone of the position of the magnetic pole is secured by varying a motor energization angle. <P>COPYRIGHT: (C)2011,JPO&INPIT |
