Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1983-01-31
1984-04-10
Rubinson, G. Z.
Electricity: motive power systems
Switched reluctance motor commutation control
318439, H02K 2900
Patent
active
044423861
ABSTRACT:
A control apparatus of a transistor motor comprises an addition reference setting circuit (203), a positive voltage addition circuit (204 and 207), a negative voltage addition circuit (205), and a positive
egative voltage addition circuit (202). The addition reference setting circuit (203) is adapted to produce reference values VC and VD. The addition is made of the magnitude of the positive-going component with respect to the reference value VC out of the peak values of the feedback voltages (VU, VV and VW) in the positive voltage addition circuit, whereby the output VAA is provided. Addition is also made of the magnitude of the negative going component with respect to the reference value VD out of the peak values of the feedback voltages in the negative voltage addition circuit, whereby the output VB is provided. The above described outputs VAA and VB are added to each other in the positive
egative voltage addition circuit, whereby the output VE is provided. The output voltages of the hall-effect devices (.alpha., .beta. and .gamma.) are controlled such that the magnitude of the output VE may be consistent with the magnitude of the control signal (VF) in a difference control circuit (209 and 201). Accordingly, it was confirmed that a torque ripple of the motor is drastically mitigated.
REFERENCES:
patent: 3891904 (1975-06-01), Pollmeier
patent: 4344023 (1982-08-01), Yokobori et al.
patent: 4368411 (1983-01-01), Kidd
E. K. Persson, "Brushless Low Inertia Motors", IEEE Pub. 136, pp. 31-34 (1976).
Hagiwara Ippei
Idei Toshio
Tatsutani Toshio
Uchida Ryohei
Yamasaki Tatsuo
Mitsubishi Denki & Kabushiki Kaisha
Ro Bentsu
Rubinson G. Z.
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