Title:
ELECTRIC DRIVE WITH ASYNCHRONOUS MOTOR
Document Type and Number:
WIPO Patent Application WO/1980/001974
Kind Code:
A1
Abstract:
An electric drive with an a synchronous motor comprises a pick-up (1) of the angular position of the rotor of the asynchronous motor, the stator windings (6) of which are connected, through a chain of interconnected in series and adjustable current source (7), a unit (9) of phase-sensible rectifiers, an adder (25), multipliers (17, 18) and a converter (13) of the number of phases, to devices (22, 20) pre-setting the stator active and reactive currents. The inputs (11) of the unit (9) are connected to the output of a multiphase voltage source (12). The multiphase voltage source comprises connected in series: a frequence adder (31), a frequence divider (32), a converter (33) of the number of phases with its outputs connected to other inputs (11) of the unit (9), and an adjustable generator (34) of frequences of the rotor currents. The output of the generator (34) is connected to the input of the frequence adders, whereas the input serves as a steering input (36) of the multiphase voltage source and is electrically connected with the output of the device (22) pre-setting the stator active current.
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Inventors:
BAI R (SU)
IVANOV E (SU)
FELDMAN A (SU)
KANEP A (SU)
CHABANOV A (SU)
BRODOVKSY V (SU)
IVANOV E (SU)
FELDMAN A (SU)
KANEP A (SU)
CHABANOV A (SU)
BRODOVKSY V (SU)
Application Number:
PCT/SU1980/000047
Publication Date:
September 18, 1980
Filing Date:
March 13, 1980
Export Citation:
Assignee:
BAI R (SU)
IVANOV E (SU)
FELDMAN A (SU)
KANEP A (SU)
CHABANOV A (SU)
BRODOVKSY V (SU)
IVANOV E (SU)
FELDMAN A (SU)
KANEP A (SU)
CHABANOV A (SU)
BRODOVKSY V (SU)
International Classes:
H02P6/00; H02P6/16; H02P27/02; H02P21/12; H02P27/04; (IPC1-7): H02P5/34; H02P7/42
Foreign References:
| SU675567A1 | 1979-07-25 | |||
| US3465226A | 1969-09-02 | |||
| DE1941312C3 |
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