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GB1098960A - Improvements in and relating to electrical control systems - Google Patents

Improvements in and relating to electrical control systems

Info

Publication number
GB1098960A
GB1098960A GB4506/65A GB450665A GB1098960A GB 1098960 A GB1098960 A GB 1098960A GB 4506/65 A GB4506/65 A GB 4506/65A GB 450665 A GB450665 A GB 450665A GB 1098960 A GB1098960 A GB 1098960A
Authority
GB
United Kingdom
Prior art keywords
current
motor
derived
voltage
control
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
GB4506/65A
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.)
Le Material Electr S W
Original Assignee
Le Material Electr S W
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 Le Material Electr S W filed Critical Le Material Electr S W
Publication of GB1098960A publication Critical patent/GB1098960A/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
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
    • H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/145—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/155—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/1555—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with control circuit
    • 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
    • H02P7/292—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 static converters, e.g. AC to DC
    • H02P7/293—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 static converters, e.g. AC to DC using phase control

Landscapes

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

Abstract

1,098,960. Converting; control of D.C. motors. MATERIEL ELECTRIQUE S.W. Feb. 2, 1965 [Feb. 3, 1964], No. 4506/65. Headings H2F and H2J. [Also in Division G3] An arrangement for supplying D.C. in either direction selectively to the armature of a separately excited D.C. motor 3 from an A.C. supply 1 comprises thyristors T1, T2 arranged back-to-back for alternative operation under the control of respective firing circuits 5-1, 5-2 producing firing pulses the timing of which is determined by control voltages derived from P.I. controllers 6-1, 6-2. Each controller is fed with a first current Is proportional to the motor current and derived from a current sensor 7; a second current IR proportional to the difference between desired and actual motor speeds, this current being derived from a comparator 9 which receives a reference input and an input from a tachogenerator 10 driven by the motor 3; and a third current IC1 or IC2 derived by applying to a rectifier device 8-1 or 8-2, a voltage representing the difference between the voltage ecl or ec2 applied to the respective one of said firing circuits and the voltage u, taken from a voltage sensor 12 applied to the motor armature, the rectifier device having a characteristic simulating the characteristic of the thyristor T1 or T2 respectively. With this arrangement the appropriate thyristor T1 or T2 is controlled to act as an inverter to return current to the supply when the motor is decelerated prior to a reversal, but no circulating current through the back-to-back thyristors is produced as in the case of conventional systems of this type and the specification discusses the advantages of this.
GB4506/65A 1964-02-03 1965-02-02 Improvements in and relating to electrical control systems Expired GB1098960A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR962464 1964-02-03

Publications (1)

Publication Number Publication Date
GB1098960A true GB1098960A (en) 1968-01-10

Family

ID=8822323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4506/65A Expired GB1098960A (en) 1964-02-03 1965-02-02 Improvements in and relating to electrical control systems

Country Status (4)

Country Link
BE (1) BE658711A (en)
GB (1) GB1098960A (en)
LU (1) LU47897A1 (en)
NL (1) NL6501295A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078923A1 (en) * 1981-10-20 1983-05-18 Siemens Aktiengesellschaft Method of operating an intermediate circuit inverter, and circuit arrangement for carrying out the method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078923A1 (en) * 1981-10-20 1983-05-18 Siemens Aktiengesellschaft Method of operating an intermediate circuit inverter, and circuit arrangement for carrying out the method

Also Published As

Publication number Publication date
LU47897A1 (en) 1965-04-02
BE658711A (en) 1965-05-17
NL6501295A (en) 1965-08-04

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