| 摘要 |
PROBLEM TO BE SOLVED: To provide a controller of a rotary machine which can improve torque controllability of a motor generator.SOLUTION: A controller 30 sets a voltage phase &phgr; and a voltage amplitude Vn in a dq coordinate system. λ axis is a coordinate axis that is not interfered from change of current vector with respect to change of the voltage phase &phgr; in the dq coordinate system. The controller 30 calculates an amplitude correction amount &Dgr;V to correct the voltage amplitude Vn on the basis of λ axis current Iλr that is λ axial component of the current vector. The controller 30 corrects the voltage amplitude Vn by the calculated amplitude correction amount &Dgr;V and operates a switching element based on the corrected voltage amplitude Vn and the voltage phase &phgr;. |
