Method and apparatus for induction motor drive

Details Method and apparatus for induction motor drive Method and apparatus for induction motor drive

1987-06-23

1988-08-09

Shoop, Jr., William M.

Electricity: motive power systems

Induction motor systems

Primary circuit control

363 39, 363 41, 363 42, H02P 534

Patent

active

047630590

ABSTRACT:
An induction motor drive including a current source inverter system having controlled turn on and turn off semiconductors in a load side inverter selectively places notches in the waveshape of the current supplied to the parallel combination of the motor and a capacitor bank for the minimization of harmonics.

REFERENCES:
patent: 3739253 (1973-06-01), Humphrey et al.
patent: 4099109 (1978-07-01), Abbondanti
patent: 4290001 (1981-09-01), Espelage et al.
patent: 4562396 (1985-12-01), Espelage et al.
patent: 4581693 (1986-04-01), Ueda et al.
"Selected Harmonic Reduction in Static D-C-A-C Inverters" by F. G. Turnbull, IEEE Transactions Paper 63-1011, 1963 (5 pages).
H. Patel Doctoral Dissertation--University of Missouri, 1977 (218 pages and index).
"Generalized Technigues of Harmonic Elimination and Voltage Control in Thyristor Inverters" Parts I & II, Patel et al., Citation Unknown, Prior to 1985.
"Evaluation of Techniques for Reducing Shaft Cogging in Current Fed AC Drives" by J. Zubek--1978 Ind. Appl. Soc. Annual Meeting Conf. Record--pp. 517-524.

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