GB1185874A - Electric Motor Control Circuits - Google Patents

Electric Motor Control Circuits

Info

Publication number
GB1185874A
GB1185874A GB677067A GB677067A GB1185874A GB 1185874 A GB1185874 A GB 1185874A GB 677067 A GB677067 A GB 677067A GB 677067 A GB677067 A GB 677067A GB 1185874 A GB1185874 A GB 1185874A
Authority
GB
United Kingdom
Prior art keywords
motor
circuit
voltage
plugging
armature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB677067A
Inventor
Brian David Hooper
John Arscott Colwill
Brian Turton Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB677067A priority Critical patent/GB1185874A/en
Publication of GB1185874A publication Critical patent/GB1185874A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
    • H02P7/2913—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Abstract

1,185,874. Control of D.C. motors. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 2 Feb., 1968 [13 Feb., 1967], No. 6770/67. Heading H2J. A series D.C. motor 1, 2, energizable in either direction of rotation by a battery 5 and interlocked change-over contacts 8, 9 in series with the armature 2, is controlled by a semi-conductor chopper circuit 4 whose firing circuit 12 is in turn controlled by a member 10 manually adjustable to provide a full voltage range across the motor and by a member 11 which detects the sense of the voltage across the armature 2 and restricts the voltage applied to the motor during " plugging " conditions. The circuit 4 varies the mark-space ratio of constant frequency pulses which it applies to the motor and the member 11 applies a signal to the circuit 12 when the motor is operating in the forward direction with respect to the supply voltage (namely when it is not plugging), this signal permitting the circuit 4 to operate over its full range of mark-space ratio variation. Diodes 6, 7 provide stability during the interpulse periods and plugging conditions respectively. In a modification, Fig. 2 (not shown), a parallel combination of resistance and short-circuiting switch is connected in series with the armature and field, the switch being controlled by the member 11 so that the resistance is inserted during plugging conditions and shorted out when the motor is operating normally. This latter form of control may be additional or alternative to the voltage regulator circuit 4 which, in a further envisaged modification, may be free from voltage restriction if the resistance control is present.
GB677067A 1967-02-13 1967-02-13 Electric Motor Control Circuits Expired GB1185874A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB677067A GB1185874A (en) 1967-02-13 1967-02-13 Electric Motor Control Circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB677067A GB1185874A (en) 1967-02-13 1967-02-13 Electric Motor Control Circuits

Publications (1)

Publication Number Publication Date
GB1185874A true GB1185874A (en) 1970-03-25

Family

ID=9820433

Family Applications (1)

Application Number Title Priority Date Filing Date
GB677067A Expired GB1185874A (en) 1967-02-13 1967-02-13 Electric Motor Control Circuits

Country Status (1)

Country Link
GB (1) GB1185874A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375067A1 (en) * 1976-12-21 1978-07-21 Bosch Gmbh Robert TRAINING DEVICE, ESPECIALLY FOR AN ACCOMPANIED TRANSPORT DEVICE
EP0002116A1 (en) * 1977-11-03 1979-05-30 Lansing Bagnall Limited Control circuit for a D.C. motor for example in an electrically powered vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375067A1 (en) * 1976-12-21 1978-07-21 Bosch Gmbh Robert TRAINING DEVICE, ESPECIALLY FOR AN ACCOMPANIED TRANSPORT DEVICE
EP0002116A1 (en) * 1977-11-03 1979-05-30 Lansing Bagnall Limited Control circuit for a D.C. motor for example in an electrically powered vehicle

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees