Method of regulating the torque response of a multiphase electro

Details Method of regulating the torque response of a multiphase electro Method of regulating the torque response of a multiphase electro

1989-12-14

1993-02-02

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Primary circuit control

318811, H02P 540

Patent

active

051840561

ABSTRACT:
In the regulation of the torque response of multiphase electronically commutated electric motors, in particular synchronous motors, a constant moment of rotation response is achieved by forming the nominal current values for the phases to be regulated depending on a torque-regulating variable and the rotor position. A current regulator is assigned to each current phase to be regulated. The method makes it possible to preset a nominal current value for each phase to be regulated for any adjustable torque as a function of the particular rotor position. The separate regulation of the nominal current values ensures that the up-commutating current is alternating exactly with the down-commutating current and hence no system-caused torque transients occur.

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Mulukutla S. Sarma, Electric Machines, Steady State Theory and Dynamic Performance, 1985, pp. 247-254.

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