JPS54155418A - Controller for ac motor - Google Patents

Controller for ac motor

Info

Publication number
JPS54155418A
JPS54155418A JP6400678A JP6400678A JPS54155418A JP S54155418 A JPS54155418 A JP S54155418A JP 6400678 A JP6400678 A JP 6400678A JP 6400678 A JP6400678 A JP 6400678A JP S54155418 A JPS54155418 A JP S54155418A
Authority
JP
Japan
Prior art keywords
converter
converters
load side
electrification
inverse
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
JP6400678A
Other languages
Japanese (ja)
Inventor
Masateru Kuniyoshi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP6400678A priority Critical patent/JPS54155418A/en
Publication of JPS54155418A publication Critical patent/JPS54155418A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: To permit the commutation of thyristor under good condition by alternately electrifying two thyristor forward-inverse power converters with direct current intermediate circuit on a controllable basis.
CONSTITUTION: The controller consists of the first forward-inverse power converter in which the power souce side converter 3 and the load side converter 4 are connected with the DC reactor 5, the secondary forward-inverse power converter in which the power source side converter 6 and the load side converter 7 are connected with the DC reactor 8 connected magnetically with the DC reactor 5, and the controlling device 10 to control each converter with respect to electrification. For setting up the load side converters 4 and 7 of each forward-inverse power converter for a fixed electrification period and permitting the alternate electrification between them, the commutation of the load side converters is made by making the power source side converters 3 and 6 do an alternate forward-inverse conversion work synchronously with the load side electrification command. Thus, when the variable speed control of AC motor is made, the commutation of thyristor can be made under good condition of current wave-form by alternately electrifying the converters controllably.
COPYRIGHT: (C)1979,JPO&Japio
JP6400678A 1978-05-29 1978-05-29 Controller for ac motor Pending JPS54155418A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6400678A JPS54155418A (en) 1978-05-29 1978-05-29 Controller for ac motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6400678A JPS54155418A (en) 1978-05-29 1978-05-29 Controller for ac motor

Publications (1)

Publication Number Publication Date
JPS54155418A true JPS54155418A (en) 1979-12-07

Family

ID=13245663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6400678A Pending JPS54155418A (en) 1978-05-29 1978-05-29 Controller for ac motor

Country Status (1)

Country Link
JP (1) JPS54155418A (en)

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