H02P 21 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation

Patents for H02P 21 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation (7,114)
09/1979
09/25/1979	CA1063165A1 Torque regulating induction motor control system
07/1979
07/10/1979	US4160940 Method of and system for operating an induction motor
04/1979
04/24/1979	CA1053321A1 Apparatus for regulating magnetic flux in an ac motor
10/1978
10/10/1978	US4119893 Circuit for forming an electrical quantity which is proportional to a flux component in a rotating field machine
08/1978
08/29/1978	CA1037557A1 Control of rotary-field electric machines
05/1978
05/09/1978	US4088934 Means for stabilizing an a-c electric motor drive system
09/1977
09/06/1977	US4047083 Adjustable speed A-C motor drive with smooth transition between operational modes and with reduced harmonic distortion
08/1977
08/23/1977	US4044285 Method and apparatus for controlling variable speed, controlled current induction motor drive systems
08/23/1977	US4044284 Alternating current motor control method and system
08/09/1977	US4041361 Constant torque induction motor drive system
06/1977
06/07/1977	US4028600 Method and apparatus for slow speed operation of an inverter controlled rotating field machine
05/1977
05/10/1977	US4023083 Torque regulating induction motor system
03/1977
03/08/1977	US4011489 Apparatus for regulating magnetic flux in an AC motor
02/1977
02/15/1977	US4008421 Methods and apparatus for speed-control of induction motors