FR2397745A1 - DC motor automatic two-zone speed control - by varying voltage at constant field excitation and vice=versa - Google Patents

DC motor automatic two-zone speed control - by varying voltage at constant field excitation and vice=versa

Info

Publication number
FR2397745A1
FR2397745A1 FR7721511A FR7721511A FR2397745A1 FR 2397745 A1 FR2397745 A1 FR 2397745A1 FR 7721511 A FR7721511 A FR 7721511A FR 7721511 A FR7721511 A FR 7721511A FR 2397745 A1 FR2397745 A1 FR 2397745A1
Authority
FR
France
Prior art keywords
motor
regulator
voltage
speed control
versa
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.)
Granted
Application number
FR7721511A
Other languages
French (fr)
Other versions
FR2397745B1 (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.)
PISTRAK MIKHAIL
Original Assignee
PISTRAK MIKHAIL
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 PISTRAK MIKHAIL filed Critical PISTRAK MIKHAIL
Priority to FR7721511A priority Critical patent/FR2397745A1/en
Publication of FR2397745A1 publication Critical patent/FR2397745A1/en
Application granted granted Critical
Publication of FR2397745B1 publication Critical patent/FR2397745B1/fr
Granted 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
    • H02P7/282—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 field supply only
    • H02P7/2825—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 field supply only 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

The automatic speed control arrangement for a DC motor provides tow-zone speed control, i.e. at low speeds control is effected by varying the voltage applied to the armature while maintaining constant field excitation, and at high speeds vice versa. The arrangement includes a unipolar voltage regulator (9) receiving a reference voltage (10) and a signal proportional to the motor voltage from voltage sensor (11). An e.m.f. regulator (6) receives the output of regulator (9), a signal proportional to the motor back e.m.f. and hence motor speed from e.m.f. sensor (8), and a reference voltage (7) proportional to the rated e.m.f. of the motor. A field current regulator (4) receives the output of regulator (6) and a signal proportional to the motor field current from sensor (5). The output of regulator (4) controls a rectifier (3) providing current to the field winding of the motor.
FR7721511A 1977-07-12 1977-07-12 DC motor automatic two-zone speed control - by varying voltage at constant field excitation and vice=versa Granted FR2397745A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7721511A FR2397745A1 (en) 1977-07-12 1977-07-12 DC motor automatic two-zone speed control - by varying voltage at constant field excitation and vice=versa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7721511A FR2397745A1 (en) 1977-07-12 1977-07-12 DC motor automatic two-zone speed control - by varying voltage at constant field excitation and vice=versa

Publications (2)

Publication Number Publication Date
FR2397745A1 true FR2397745A1 (en) 1979-02-09
FR2397745B1 FR2397745B1 (en) 1981-08-28

Family

ID=9193305

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721511A Granted FR2397745A1 (en) 1977-07-12 1977-07-12 DC motor automatic two-zone speed control - by varying voltage at constant field excitation and vice=versa

Country Status (1)

Country Link
FR (1) FR2397745A1 (en)

Also Published As

Publication number Publication date
FR2397745B1 (en) 1981-08-28

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Legal Events

Date Code Title Description
ST Notification of lapse