| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that the responsiveness of control likely deteriorates at an operation of a high-modulation rate, when controlling the rotating state of a rotating machine by operating an output voltage of an inverter applied to the rotating machine. <P>SOLUTION: An actual difference of voltages (voltage differences ΔVd, ΔVq) with respect to a voltage to be outputted to a motor 10 in order to make command currents idc, iqc flow is calculated by inputting differences between actual currents id, iq flowing in the motor 10 and the command currents idc, iqc into a voltage equation. In a d-axis integration operation part 46 and a q-axis integration operation part 48, command voltages Vdc1, Vqc1 are calculated by integration operations of the voltage differences ΔVd, ΔVq, respectively. <P>COPYRIGHT: (C)2009,JPO&INPIT |
