JPS5771294A - Variable speed driving of induction motor - Google Patents

Variable speed driving of induction motor

Info

Publication number
JPS5771294A
JPS5771294A JP55146376A JP14637680A JPS5771294A JP S5771294 A JPS5771294 A JP S5771294A JP 55146376 A JP55146376 A JP 55146376A JP 14637680 A JP14637680 A JP 14637680A JP S5771294 A JPS5771294 A JP S5771294A
Authority
JP
Japan
Prior art keywords
control
variable speed
speed driving
outputs
gate
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
JP55146376A
Other languages
Japanese (ja)
Inventor
Makoto Fukuyama
Yoshiharu Nakazawa
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 Denki Seizo KK
Toyo Electric Manufacturing Ltd
Original Assignee
Toyo Denki Seizo KK
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 Denki Seizo KK, Toyo Electric Manufacturing Ltd filed Critical Toyo Denki Seizo KK
Priority to JP55146376A priority Critical patent/JPS5771294A/en
Publication of JPS5771294A publication Critical patent/JPS5771294A/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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/0077—Characterised by the use of a particular software algorithm

Landscapes

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

Abstract

PURPOSE:To achieve a variable speed driving with a staged frequency output obtained by controlling each one of three phases obtained in a bidirectional control rectification circuit and each one opposite thereto by switching with a microcomputer. CONSTITUTION:Bidirectional control rectifiers TH are connected to respective phases of a converter 2 for 3-phase-6-phase conversion. The outputs of the control rectifiers TH are fed to a 3-phase induction motor 4 while the gate thereof is controlled with a control circuit 5. The control circuit 5 containing a microcomputer 52 provides the output thereof an alpha control circuit 54 and a sign distributor 55. The outputs thereof are subjected to an AND gate 56 with the output of a gate delay circuit 59 to generate a control signal of the control rectifiers TH. Each one of three phases and each one therto are optimally controlled by switching to obtain staged outputs. Thus, a variable speed driving can be done utilizing a.c. waveforms as intact.
JP55146376A 1980-10-21 1980-10-21 Variable speed driving of induction motor Pending JPS5771294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146376A JPS5771294A (en) 1980-10-21 1980-10-21 Variable speed driving of induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146376A JPS5771294A (en) 1980-10-21 1980-10-21 Variable speed driving of induction motor

Publications (1)

Publication Number Publication Date
JPS5771294A true JPS5771294A (en) 1982-05-04

Family

ID=15406308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146376A Pending JPS5771294A (en) 1980-10-21 1980-10-21 Variable speed driving of induction motor

Country Status (1)

Country Link
JP (1) JPS5771294A (en)

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