| 摘要 |
<p>PURPOSE:To accurately control a motor by providing an error detector, and correcting a current amplitude and a current phase, thereby removing a control difference. CONSTITUTION:A deviation DELTAtheta between a phase command theta' and an actual motor current phase theta is detected by an error detector 22, added to the command theta by an adder 22a, and new phase command of (theta'+DELTAtheta) is addressed to a memory circuit 3. On the other hand, a deviation I between the amplitude command I' and actual motor current amplitude I is detected by an error detector 33, added by an adder 22b to the amplitude command I, and a new current amplitude command of (I'+DELTAI) is addressed to the other input of the memory circuit 3. The circuit 3 calculates it and outputs a reference 3-phase current command.</p> |
