Torque estimator for switched reluctance machines

Details Torque estimator for switched reluctance machines Torque estimator for switched reluctance machines

1989-10-16

1990-10-02

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 318701, H02P 800

Patent

active

049610384

ABSTRACT:
Apparatus for estimating torque generated by a switched reluctance machine utilizes a ROM table look-up scheme to generate a torque estimate based upon phase current and rotor position information. Each ROM address is accessed by digitizing and then combining sensed phase current and rotor position signals. Knowledge of the instantaneous torque output enables closed-loop torque control including appropriate adjustments of phase currents to reduce or eliminate torque pulsations.

REFERENCES:
patent: 4661756 (1987-04-01), Murphy et al.
patent: 4684867 (1987-08-01), Miller
patent: 4707650 (1987-11-01), Bose
patent: 4739240 (1988-04-01), MacMinn et al.

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