Motor drive control apparatus

Details Motor drive control apparatus Motor drive control apparatus

1993-01-26

1995-04-25

Shoop, Jr., William M.

Electricity: motive power systems

Synchronous motor systems

318806, 318815, 318821, 318822, 318823, 318609, H02P 146

Patent

active

054102340

ABSTRACT:
A motor drive control apparatus having an electrical power amplifier for supplying an electrical power to a motor, and a current control loop and speed control loop for controlling the drive of the motor, which includes a current feedforward component calculation section for creating voltage commands to be imposed on respective phases from current commands for the respective phases for the motor and the impedance model of the motor for carrying out a feedforward control by using the voltage commands to be imposed on the respective phases. With the above arrangement, the motor drive control apparatus can create the voltage commands to be imposed on the respective phases regardless of the existence of control dead time elements such as a limited gain set in control loops, and the like so that a command follow-up property is improved when a torque is changed, a follow-up error is reduced over an entire region when the torque is changed, and further a stable control can be achieved in the same way as a conventional apparatus at a steady time.

REFERENCES:
patent: 4887015 (1989-12-01), Kurakake et al.
patent: 5038092 (1991-08-01), Asano et al.
patent: 5063335 (1991-11-01), Baechtel et al.
patent: 5101145 (1992-03-01), Rehm
patent: 5153491 (1992-10-01), Fujioka et al.
patent: 5196778 (1993-03-01), Hayashida

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