| 摘要 |
PROBLEM TO BE SOLVED: To provide a controller of a rotary machine, being capable of appropriately suppressing a decrease in torque controllability when voltage saturation occurs.SOLUTION: A controller of a rotary machine performs phase control by using a voltage phase φ of an output voltage vector and amplitude control by using voltage amplitude "Vn+ΔV" of the output voltage vector, in order to control torque of a motor generator at a target torque Trq*. A range of a modulation factor higher than 0 and less than a first specified value is defined as a first range, and a range of the modulation factor from the first specified value to an upper limit value is defined as a second range. Actual current responsiveness with respect to a command current by the amplitude control is lowered in the second range than in the first range, without making torque responsiveness with respect to the target torque Trq* by the phase control lower in the second range than in the first range.SELECTED DRAWING: Figure 2 |
