JPS5619391A - Control device for secondary excitation thyristor motor - Google Patents

Control device for secondary excitation thyristor motor

Info

Publication number
JPS5619391A
JPS5619391A JP9152279A JP9152279A JPS5619391A JP S5619391 A JPS5619391 A JP S5619391A JP 9152279 A JP9152279 A JP 9152279A JP 9152279 A JP9152279 A JP 9152279A JP S5619391 A JPS5619391 A JP S5619391A
Authority
JP
Japan
Prior art keywords
speed
circuit
range
speed command
command
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
JP9152279A
Other languages
Japanese (ja)
Inventor
Katsunori Suzuki
Toshiaki Okuyama
Yuzuru Kubota
Hiroshi Nagase
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
Priority to JP9152279A priority Critical patent/JPS5619391A/en
Publication of JPS5619391A publication Critical patent/JPS5619391A/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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/24—Variable impedance in stator or rotor circuit
    • H02P25/26—Variable impedance in stator or rotor circuit with arrangements for controlling secondary impedance

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To prevent harmonic waves of a secondary excitation thyristor by detecting the speed range for generating detrimental harmonic waves and applying another speed command in this range thereto to rapidly pass over the range. CONSTITUTION:A speed command altering circuit 17 is provided between a speed command circuit 10 and a speed control circuit 11, and comparators 18, 19 and logic AND gate 20 forming a command altering circuit 17 detect the speed range for generating n-th harmonic waves of primary current. The output from the circuit 17 opens or closes the switch 23 to stop the speed command from the speed command circuit 10 in the speed range and applies new speed command from a speed setting variable resistor 22 thereto to alter the speed command so as to rapidly pass over the speed range. In this manner, it can prevent the detrimental harmonic waves which cannot be removed in the conventional resonance filter under such control.
JP9152279A 1979-07-20 1979-07-20 Control device for secondary excitation thyristor motor Pending JPS5619391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9152279A JPS5619391A (en) 1979-07-20 1979-07-20 Control device for secondary excitation thyristor motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9152279A JPS5619391A (en) 1979-07-20 1979-07-20 Control device for secondary excitation thyristor motor

Publications (1)

Publication Number Publication Date
JPS5619391A true JPS5619391A (en) 1981-02-24

Family

ID=14028740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9152279A Pending JPS5619391A (en) 1979-07-20 1979-07-20 Control device for secondary excitation thyristor motor

Country Status (1)

Country Link
JP (1) JPS5619391A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5285905A (en) * 1976-01-12 1977-07-16 Mitsubishi Metal Corp Co base sintered alloy of excellent cuttability used for parts of deco rations
JPS6285688A (en) * 1985-10-08 1987-04-20 Kansai Electric Power Co Inc:The Operating method for variable-speed reversible pump turbine generator-motor
JPH0610084A (en) * 1992-06-29 1994-01-18 Kawasaki Steel Corp High hardness sintered alloy excellent in corrosion resistance and machinability and its manufacture

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5285905A (en) * 1976-01-12 1977-07-16 Mitsubishi Metal Corp Co base sintered alloy of excellent cuttability used for parts of deco rations
JPS5823450B2 (en) * 1976-01-12 1983-05-16 三菱マテリアル株式会社 Production method of C↓o-based sintered alloy for decorative parts with good machinability
JPS6285688A (en) * 1985-10-08 1987-04-20 Kansai Electric Power Co Inc:The Operating method for variable-speed reversible pump turbine generator-motor
JPH0568959B2 (en) * 1985-10-08 1993-09-30 Kansai Electric Power Co
JPH0610084A (en) * 1992-06-29 1994-01-18 Kawasaki Steel Corp High hardness sintered alloy excellent in corrosion resistance and machinability and its manufacture

Similar Documents

Publication Publication Date Title
SE8105093L (en) KIT AND DEVICE FOR SPEED CONTROL OF AN AC MOTOR
JPS54158514A (en) Discharge time controller fir 2-cycle engine
JPS53103116A (en) Induction motor controller
JPS5619391A (en) Control device for secondary excitation thyristor motor
JPS57110850A (en) Neutral decision device
JPS526840A (en) Current interception ignition device
JPS54160216A (en) Revolution control system
JPS563589A (en) Control method for variable voltage and variable frequency inverter
JPS5251510A (en) Frequency generator and motor with that generator
JPS5241819A (en) Hysteresis motor driving apparatus
JPS57106397A (en) Driving device for stepping motor
JPS5699517A (en) Constant-speed running device for car
JPS5332314A (en) Excitation controller for synchronous
JPS57116579A (en) Control system for semiconductor type ac switch
JPS5654963A (en) Ignition timing controller for engine
JPS51136134A (en) High frequency inverter
JPS5399410A (en) Controller for thyristor motor
JPS55122475A (en) Pulse-current control circuit
JPS5475023A (en) Motor speed controller
JPS51150016A (en) Control device of induction motor
JPS57145591A (en) Speed control device for induction motor
JPS53121118A (en) Speed controller for wound-rotor induction motor
JPS5244939A (en) Elevator speed control apparatus
JPS51114570A (en) Process control starter
JPS51126418A (en) Engine load fluctuation detection device