| 摘要 |
PROBLEM TO BE SOLVED: To enable relaxation of complexity of design and prevention of degradation of control performance for a motor control device.SOLUTION: A motor control device 100 applies a voltage vector to a three-phase motor 102 by using an inverter 101 so that the motor magnetic flux of the three-phase motor 102 follows an instruction magnetic flux vector. The motor control device 100 has a phase specifying part 111, an amplitude specifying part 115 and an instruction magnetic flux specifying part 112. The phase specifying part 111 specifies, with an instructed speed, a movement amount of each control period at which the phase of the motor magnetic flux should be moved, and specifies the phase of the instruction magnetic flux vector by using the specified movement amount. The amplitude specifying part 115 specifies the amplitude of the instructed magnetic flux vector. The instructed magnetic flux specifying part 112 specifies the instruction magnetic flux vector by using the phase of the instruction magnetic flux vector specified by the phase specifying part 111 and the amplitude of the instruction magnetic flux vector specified by the amplitude specifying part 115.SELECTED DRAWING: Figure 3 |
