GB1179761A - Improvements relating to Regulating Circuits - Google Patents

Improvements relating to Regulating Circuits

Info

Publication number
GB1179761A
GB1179761A GB321067A GB321067A GB1179761A GB 1179761 A GB1179761 A GB 1179761A GB 321067 A GB321067 A GB 321067A GB 321067 A GB321067 A GB 321067A GB 1179761 A GB1179761 A GB 1179761A
Authority
GB
United Kingdom
Prior art keywords
source
control
load
voltage
current
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
GB321067A
Inventor
John Arscott Colwill
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 GB321067A priority Critical patent/GB1179761A/en
Publication of GB1179761A publication Critical patent/GB1179761A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

1,179,761. Control of D.C. motors. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. 18 Dec., 1967 [20 Jan., 1967], No. 3210/67. Heading H2J. [Also in Division G3] In a regulating circuit of the type which switches between two states to maintain a first quantity, e.g. voltage, at a value set by a first reference signal, this first reference signal is arranged to be modified when a second quantity, e.g. current, reaches a predetermined relationship with a second reference signal, whereby control in dependence upon the second quantity supersedes control in dependence upon the first quantity. As shown, a load 10, e.g. the traction motor of an electrically-driven vehicle, is supplied from a D.C. source 10 by way of a chopper regulator 8 and a current sensor 2. A sawtooth waveform from a source 1 is compared in a comparator 3 with an adjustable D.C. reference voltage from a source 4 which may be associated with the foot-pedal of the vehicle and the output from the comparator, applied to the regulator 8 over a pulse generator 7, determines the voltage applied to the load; if the load current exceeds a predetermined value, a second comparator 5 associated with a second reference source 6 produces an output which is applied to the source 4 to modify the reference voltage supplied thereby. Thus current control overrides voltage control when an excess current flows in the load.
GB321067A 1967-01-20 1967-01-20 Improvements relating to Regulating Circuits Expired GB1179761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB321067A GB1179761A (en) 1967-01-20 1967-01-20 Improvements relating to Regulating Circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB321067A GB1179761A (en) 1967-01-20 1967-01-20 Improvements relating to Regulating Circuits

Publications (1)

Publication Number Publication Date
GB1179761A true GB1179761A (en) 1970-01-28

Family

ID=9754036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB321067A Expired GB1179761A (en) 1967-01-20 1967-01-20 Improvements relating to Regulating Circuits

Country Status (1)

Country Link
GB (1) GB1179761A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2293824A1 (en) * 1974-12-03 1976-07-02 Int Standard Electric Corp Pulse width modulated converter circuit with linear sawtooth generator - has input voltage compensation with second generator fed from input and synchroniser
US4471276A (en) * 1980-06-13 1984-09-11 Stephen Cudlitz Electric motor speed controller and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2293824A1 (en) * 1974-12-03 1976-07-02 Int Standard Electric Corp Pulse width modulated converter circuit with linear sawtooth generator - has input voltage compensation with second generator fed from input and synchroniser
US4471276A (en) * 1980-06-13 1984-09-11 Stephen Cudlitz Electric motor speed controller and method

Similar Documents

Publication Publication Date Title
GB1324338A (en) Direct current control circuit
KR880006834A (en) Induction Motor Electric Vehicle Control System
GB1385239A (en) Current limiting control for an electric power system
GB1201930A (en) Improvements relating to electrical drive units
GB1255382A (en) Power peak limiting control for direct current drives
GB1468251A (en) Braking-mode detection circuit for dc electric motors
DE4311670A1 (en) Voltage regulator for regulating the output voltage of a generator
WO1980002487A1 (en) Voltage-to-frequency-converter
US3543121A (en) Jerk limit circuit for traction motor control systems
GB1179761A (en) Improvements relating to Regulating Circuits
GB1083153A (en) Improved system for controlling a motor
GB1168189A (en) Improvements in Voltage Regulators
GB1138906A (en) Electric generator systems and regulators therefor
US4066934A (en) Motor speed controller
GB1209421A (en) Load weight circuit for electric traction motor control systems
ES363657A1 (en) D.c. motor control system which compares the motor current with a reference to control the motor speed
JPS5731306A (en) Motor speed controller for vehicle
GB1217316A (en) Battery charging systems for road vehicles
US4347467A (en) Control circuit for a D.C. motor
GB1425848A (en) Electrical traction systems incorporating a dc motor and to vehicles including such systems
US4027214A (en) Field shunting circuit
GB1174641A (en) Improvements in Voltage Regulators
US3944897A (en) Control circuits for electrically driven vehicles
GB1025871A (en) Improvements relating to the control of electric motors
GB1131422A (en) Improvements relating to braking apparatus