JPS5713991A - Operation system of induction motor - Google Patents

Operation system of induction motor

Info

Publication number
JPS5713991A
JPS5713991A JP8464380A JP8464380A JPS5713991A JP S5713991 A JPS5713991 A JP S5713991A JP 8464380 A JP8464380 A JP 8464380A JP 8464380 A JP8464380 A JP 8464380A JP S5713991 A JPS5713991 A JP S5713991A
Authority
JP
Japan
Prior art keywords
output
setter
signal
speed
switch
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
JP8464380A
Other languages
Japanese (ja)
Inventor
Takashi Kitazawa
Kazunori Masuda
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.)
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Electric Manufacturing 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 Toyo Electric Manufacturing Ltd filed Critical Toyo Electric Manufacturing Ltd
Priority to JP8464380A priority Critical patent/JPS5713991A/en
Publication of JPS5713991A publication Critical patent/JPS5713991A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: To elevate the torque-speed characteristic and the efficiency by switching a half-wave type cycloconverter and a primary voltage control in combination.
CONSTITUTION: In a low speed area where the output signal level of a speed setter 11 is lower than the reference value of the output of a switching level setter 14, a comparator 15 fails to produce a signal. A switch 6 is closed with a signal L outputted from a switching signal geneator 16 to turn the connection of a main circuit 3 of an induction motor 2 to a three-phase AC half-wave type cycloconverter. A voltage of a tacho generator 8 is computed 10 with the output of the speed setter 11 and the output is fed to a gate control circuit 13L by way of a speed control amplifier 12 to control a thyristor device 3 with the output thereof. When the output of the setter 11 is larger than that of the setter 14, a comparator 15 provides an output to close a switch 7 with a signal H of a generator 16 while the switch 6 is opened. With a gate control circuit 13H, the connection of the main circit is turned to a thyristor diode mixed antiparallel type three-phase primary voltage control power converter.
COPYRIGHT: (C)1982,JPO&Japio
JP8464380A 1980-06-24 1980-06-24 Operation system of induction motor Pending JPS5713991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8464380A JPS5713991A (en) 1980-06-24 1980-06-24 Operation system of induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8464380A JPS5713991A (en) 1980-06-24 1980-06-24 Operation system of induction motor

Publications (1)

Publication Number Publication Date
JPS5713991A true JPS5713991A (en) 1982-01-25

Family

ID=13836369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8464380A Pending JPS5713991A (en) 1980-06-24 1980-06-24 Operation system of induction motor

Country Status (1)

Country Link
JP (1) JPS5713991A (en)

Similar Documents

Publication Publication Date Title
JPS5534854A (en) Controlling method of secondary winding-exciting motor
JPS54106832A (en) Operation control method for a/d converter
JPS5713991A (en) Operation system of induction motor
JPS5450812A (en) Power source change over device of induction motors
JPS5736580A (en) Protecting method for converter
JPS55127805A (en) Electric-car controlling system
JPS52131139A (en) Three phase ac voltage control circuit
JPS54150626A (en) Scherbius device
JPS5330727A (en) Speed controller for induction motor
JPS5489216A (en) Dc power unit
JPS55103073A (en) Thyristor switch
JPS5653593A (en) Dc motor current control circuit
JPS5510862A (en) Thyristor motor controller
JPS55106094A (en) Method of controlling operation of synchronous motor
JPS5372121A (en) Torque control device of induction motor
JPS54148254A (en) Controller for circuit breaker
JPS5579699A (en) Speed controller for squirrel-cage induction motor
JPS5574387A (en) Generation-braking device for induction motor
JPS5532436A (en) Inverter
JPS5574390A (en) Control of dc motor
JPS56132190A (en) Driving device for induction motor
JPS54158635A (en) Controller for power converter
JPS54156118A (en) Serbius apparatus
JPS5271616A (en) Voltage control circuit for distortion wave generator
JPS5674099A (en) Excitation of synchronous generator