| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small, light and low-cost inverter controller for induction motor drive. <P>SOLUTION: The inverter controller derives an input voltage correction coefficient by dividing an input voltage reference value by an input voltage detected value, and multiplying a motor voltage command value, which is obtained from a motor voltage command maker 14, by an input voltage correction coefficient, which is the output value of an input voltage corrector 16, thereby correcting the voltage of the motor voltage command so as to make a motor voltage command correction. The inverter controller has a first mode, in which 1 is set to the input voltage correction coefficient in case that the detected input voltage is over the input voltage reference value in the derivation of the input voltage correction coefficient, and a second mode, in which a value of having divided the input voltage reference value by the input voltage detected value is set to it. <P>COPYRIGHT: (C)2010,JPO&INPIT |
