GB1400023A - Ward leonard speed control systems for dc motors - Google Patents

Ward leonard speed control systems for dc motors

Info

Publication number
GB1400023A
GB1400023A GB4509572A GB4509572A GB1400023A GB 1400023 A GB1400023 A GB 1400023A GB 4509572 A GB4509572 A GB 4509572A GB 4509572 A GB4509572 A GB 4509572A GB 1400023 A GB1400023 A GB 1400023A
Authority
GB
United Kingdom
Prior art keywords
speed
signal
tachogenerator
motor
generator
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
GB4509572A
Other languages
English (en)
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1400023A publication Critical patent/GB1400023A/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
    • H02P7/34—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 Ward-Leonard arrangements
    • H02P7/347—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 Ward-Leonard arrangements in which only the generator field is controlled

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
  • Elevator Control (AREA)
GB4509572A 1971-10-01 1972-09-29 Ward leonard speed control systems for dc motors Expired GB1400023A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46076345A JPS5238206B2 (zh) 1971-10-01 1971-10-01

Publications (1)

Publication Number Publication Date
GB1400023A true GB1400023A (en) 1975-07-16

Family

ID=13602754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4509572A Expired GB1400023A (en) 1971-10-01 1972-09-29 Ward leonard speed control systems for dc motors

Country Status (7)

Country Link
JP (1) JPS5238206B2 (zh)
CA (1) CA963080A (zh)
CH (1) CH547035A (zh)
DE (1) DE2247866A1 (zh)
FR (1) FR2152331A5 (zh)
GB (1) GB1400023A (zh)
HK (1) HK75576A (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114644A (en) * 1974-07-29 1976-02-05 Hitachi Ltd Erebeetadendokino kidoseigyohoshiki
JPS5168056A (en) * 1974-12-10 1976-06-12 Mitsubishi Electric Corp Erebeetano sokudoseigyosochi
JPS51139046A (en) * 1975-05-26 1976-12-01 Hitachi Ltd Control device of the alternating current elevator
JPS529819A (en) * 1975-07-14 1977-01-25 Hitachi Ltd Speed controlling device of dc motors
JPS52107526A (en) * 1976-03-08 1977-09-09 Hitachi Ltd Speed controller for dc motor
JPS6050523B2 (ja) * 1976-10-15 1985-11-08 三菱電機株式会社 圧延機における被圧延材噛込時の速度補償装置
JPS546260A (en) * 1977-06-13 1979-01-18 Mitsubishi Electric Corp Device for controlling elevator cage speed
JPS5456114U (zh) * 1978-08-30 1979-04-18

Also Published As

Publication number Publication date
HK75576A (en) 1976-12-10
JPS5238206B2 (zh) 1977-09-28
DE2247866A1 (de) 1973-04-19
JPS4842319A (zh) 1973-06-20
CA963080A (en) 1975-02-18
CH547035A (de) 1974-03-15
FR2152331A5 (zh) 1973-04-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee