JPS5728588A - Speed controlling device for direct current motor - Google Patents

Speed controlling device for direct current motor

Info

Publication number
JPS5728588A
JPS5728588A JP10339280A JP10339280A JPS5728588A JP S5728588 A JPS5728588 A JP S5728588A JP 10339280 A JP10339280 A JP 10339280A JP 10339280 A JP10339280 A JP 10339280A JP S5728588 A JPS5728588 A JP S5728588A
Authority
JP
Japan
Prior art keywords
value
speed
current
circuit
controlling
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.)
Pending
Application number
JP10339280A
Other languages
Japanese (ja)
Inventor
Tatsuya Kura
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.)
Okuma Corp
Original Assignee
Okuma Machinery Works 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 Okuma Machinery Works Ltd filed Critical Okuma Machinery Works Ltd
Priority to JP10339280A priority Critical patent/JPS5728588A/en
Publication of JPS5728588A publication Critical patent/JPS5728588A/en
Pending 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
    • H02P7/2805—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 whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

Landscapes

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

Abstract

PURPOSE:To reduce the time required for acceleration and deceleration of the motor by a method wherein a controlling circuit is provided in such manner that a current controlling value is increased when the motor is driven at a low speed and the value is reduced when driven at a high speed, thereby allowing to flow a high power when a low-speed driving is performed while an excess current protection is being contrived. CONSTITUTION:A current command circuit 3 is inserted between a speed controlling amplifier 2, with which a speed command value (e) and a speed feedback value ef are comparatively amplified, and a current controlling amplifier 4 to be used for comparative amplification of a current commanding value and a current feedback value. In this current commanding circuit 3, the absolute value of the speed feedback value ef and a reference speed value nref are compared, the amount of deviation is amplified and a signal ep is obtained only when ¦ef¦ is larger, and is outputted using the deviation between the ep and the current limiation set point iL as the positive and negative limited values LP and LN. Then the output ic, LP and LN from the speed controlling amplifier 2 are compared at the limitation circuit 38 and a current commanding signal ic' is outputted using the LP and LN as the limitation value
JP10339280A 1980-07-28 1980-07-28 Speed controlling device for direct current motor Pending JPS5728588A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10339280A JPS5728588A (en) 1980-07-28 1980-07-28 Speed controlling device for direct current motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10339280A JPS5728588A (en) 1980-07-28 1980-07-28 Speed controlling device for direct current motor

Publications (1)

Publication Number Publication Date
JPS5728588A true JPS5728588A (en) 1982-02-16

Family

ID=14352789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10339280A Pending JPS5728588A (en) 1980-07-28 1980-07-28 Speed controlling device for direct current motor

Country Status (1)

Country Link
JP (1) JPS5728588A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4712050A (en) * 1986-03-17 1987-12-08 Hitachi, Ltd. Control system for brushless DC motor
JPS6328742A (en) * 1986-07-21 1988-02-06 Imasen Denki Seisakusho:Kk Power seat device for vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372117A (en) * 1976-12-08 1978-06-27 Toshiba Corp Controller for ac motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372117A (en) * 1976-12-08 1978-06-27 Toshiba Corp Controller for ac motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4712050A (en) * 1986-03-17 1987-12-08 Hitachi, Ltd. Control system for brushless DC motor
JPS6328742A (en) * 1986-07-21 1988-02-06 Imasen Denki Seisakusho:Kk Power seat device for vehicle

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