Electricity: motive power systems – Induction motor systems – Secondary circuit control
Patent
1992-07-10
1993-02-16
Shoop, Jr., William M.
Electricity: motive power systems
Induction motor systems
Secondary circuit control
318812, 318799, 388854, 388806, H02P 516
Patent
active
051874202
ABSTRACT:
A motor control device carries cut feedback control of a motor such that the rotational speed of the motor is equal to the command speed. A control voltage is first calculated as the sum of a first constant times the difference between the command speed and the actual rotational speed, a second constant times the actual rotational speed and a predetermined offset value. The calculated control voltage is corrected on the basis of the phase difference between the command speed and the actual rotational speed and a voltage after the correction is outputted as a motor control voltage. The rotational speed of the motor can be caused to rapidly follow the target speed by adjusting the first and second constants and the offset value whether the command speed is relatively low or high, thereby to make it possible to control the motor at a constant speed.
REFERENCES:
patent: 3950682 (1976-04-01), Dohanich, Jr.
patent: 4575667 (1986-08-01), Kurakake
patent: 4586083 (1986-04-01), Omae et al.
patent: 4623827 (1986-11-01), Ito
patent: 4733144 (1988-03-01), Bisseling
patent: 4745563 (1988-05-01), Kaku
Patent Abstracts of Japan, vol. 10, No. 125 (E-402)(2182) May 10, 1986 & JP-A-60 255 082 (Matsishita Denki Sangyo K.K.), Dec. 16, 1985.
Patent Abstract of Japan, vol. 7, No. 123 (E-178)(1268) May 27, 1983 & JP-A-58 039 292 (Oki Denki Kogyo K.K.) Mar. 7, 1983.
R. Bonert, "Design of a High Performance Digital Tachometer with a Microcontroller", IEEE Transactions of Instrumentation and Measurement, vol. 38, No. 6, New York, U.S., pp. 1104-1108 (Nov. 1989).
Gelli A. Spescha, "Ein Schnelles Digitales Drehzahlmessgerat", Messen Prufen Automatisieren, vol. 22, No. 10, Bad Worishofen de pp. 630-635 (Oct. 1986).
Araki Toshihiko
Harada Hiroyuki
Kajitani Tetsuji
Matsuura Yasumasa
Cabeca John W.
Mita Industrial Co. Ltd.
Shoop Jr. William M.
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