Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1993-08-20
1995-08-29
Shoop, Jr., William M.
Electricity: motive power systems
Induction motor systems
Primary circuit control
318821, H02P 540
Patent
active
054463637
ABSTRACT:
There is disclosed a method of controlling an induction motor, which controls a primary current of the induction motor on the basis of a magnetic flux component current command i.sub.1d *, a torque component current command i.sub.1q *, and a slip frequency command .omega..sub.s which are orthogonal component command values of the primary current of the induction motor, wherein control parameters R.sub.2 *, l.sub.2 * and M* set in accordance with a secondary resistance R.sub.2, a secondary leakage inductance l.sub.2 and a mutual inductance M of the induction motor are used to calculate the magnetic flux component current command i.sub.1d *, the torque component current command i.sub.1q * and the slip frequency command .omega..sub.s. Even in the case where the mutual inductance M of the induction motor varies, if the coefficient 1/M* is assumed as a magnetic saturation function given by a gap magnetic flux, the influence of the magnetic saturation can be canceled.
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Kurosawa et al., "Block Diagram And Vector Control Of An Induction Motor With Magnetic Saturation", Abstract, 1992 National Convention Record I.E.E. Japan, Industry Applications Society.
Kurosawa Ryoichi
Yamamoto Hajime
Cabeca John W.
Kabushiki Kaisha Toshiba
Shoop Jr. William M.
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