| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce noise and vibration that are generated during operation of a commutatorless motor when achieving rotation control of the commutatorless motor by adjusting inverter output, and to achieve a low-cost inverter controlling apparatus having a simple structure. <P>SOLUTION: The inverter controlling apparatus 1 generates a switching signal in an inverter 2 for driving the commutatorless motor M from an armature current. The inverter controlling apparatus 1 has a retention means 11 for retaining the phase of the switching signal when the armature current is measured, an estimation means 12 for estimating the rotor position of the commutatorless motor from the armature current, an operation means 13 for generating a phase correction value according to the retained phase of the switching signal and the estimated phase of the rotor position, and an output means 14 for continuously outputting a signal string of the switching signal that is being outputted until the phase correction value is generated, and correcting the phase of the switching signal that is being outputted when the phase correction value is generated to output the signal string of a new switching signal. <P>COPYRIGHT: (C)2003,JPO |
