Arrangements for regulating or controlling the speed or torque of electric DC motors

HELECTRICITY H02Electric power H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS

H02P7/00Arrangements for regulating or controlling the speed or torque of electric DC motors

H02P7/0094wherein the position is detected using the ripple of the current caused by the commutator H02P7/02the DC motors being of the linear type H02P7/025the DC motors being of the moving coil type H02P7/03for controlling the direction of rotation of DC motors H02P7/04by means of a H-bridge circuit H02P7/05by means of electronic switching H02P7/06for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current H02P7/063using centrifugal devices H02P7/066using a periodic interrupter H02P7/08by manual control without auxiliary power H02P7/10of motor field only H02P7/12Switching field from series to shunt excitation or vice versa H02P7/14of voltage applied to the armature with or without control of field Ward-Leonard H02P7/18by master control with auxiliary power H02P7/20using multi-position switch H02P7/22using multi-position switch H02P7/24using discharge tubes or semiconductor devices H02P7/245whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value H02P7/26using discharge tubes H02P7/265whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value H02P7/28using semiconductor devices H02P7/2805whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value H02P7/281the DC motor being operated in four quadrants H02P7/2815whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value H02P7/282controlling field supply only H02P7/2825whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value H02P7/285controlling armature supply only H02P7/2855whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value H02P7/288using variable impedance H02P7/2885whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value H02P7/29using pulse modulation H02P7/291with on-off control between two set points H02P7/2913whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value H02P7/292using static converters H02P7/293using phase control H02P7/295of the kind having a thyristor or the like in series with the power supply and the motor H02P7/298controlling armature and field supply H02P7/2985whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value H02P7/30using magnetic devices with controllable degree of saturation H02P7/305whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value H02P7/32using armature-reaction-excited machines H02P7/325whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value H02P7/34using Ward-Leonard arrangements H02P7/343in which both generator and motor fields are controlled H02P7/347in which only the generator field is controlled H02P7/348for changing between series and parallel connections of motors