Motor control apparatus and motor control method

Details Motor control apparatus and motor control method Motor control apparatus and motor control method

2008-03-25

2010-10-26

Masih, Karen (Department: 2837)

Electricity: motive power systems

Positional servo systems

Multiple mode systems

C318S677000, C318S491000

Reexamination Certificate

active

07821219

ABSTRACT:
Size and weight reduction of a motor-driven vehicle, robot or the like is achieved. A current command Iref from a speed feedback gain is supplied to each of circuits with coefficients of sin(θm), sin(θm+2π/3) and sin(θm−2π/3) to generate three-phase signals. The three-phase signals are respectively supplied to current control gains through adder-subtracters. Further, signals from motor constants are added together by an adder to produce motor torque. Furthermore, coil voltages output from adders pass through diodes and are then added together by an adder, and the signal is supplied to a regenerative voltage determiner. When a regenerative voltage becomes excessive, in-phase current Idc is supplied through a regeneration control gain to adder-subtracters.

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