Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1992-07-14
1993-08-03
Wysocki, Jonathan
Electricity: motive power systems
Induction motor systems
Primary circuit control
318439, 310179, H02P 700
Patent
active
052332802
ABSTRACT:
The invention relates to a variable speed multi-phase motor powered via a converter, which reduces the control expenditure by dividing the stator winding into a number of partial coils corresponding to the phase number of the motor, arranged in equal grooves. A phase strand of each partial winding is connected to the one pole via a controllable semiconductor switching element, and the other phase strands are connected to the other pole of the direct current intermediate circuit of the converter in series to the one phase strand. Furthermore, a phase strand of each partial winding belonging to the other phase is connected to the corresponding pole of the direct current intermediate circuit via the controllable semiconductor switching element.
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IEEE Transactions on Industry Applications, vol. 26, No. 1, Jan./Feb. 1990, John C. Salmon et al.: A Split-Wound Industion Motor Design to Improve the Reliability of PWM Inverter Drives.
Siemens Aktiengesellschaft
Wysocki Jonathan
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