JPS55141995A - Variable speed driving system for synchronous motor - Google Patents

Variable speed driving system for synchronous motor

Info

Publication number
JPS55141995A
JPS55141995A JP4787379A JP4787379A JPS55141995A JP S55141995 A JPS55141995 A JP S55141995A JP 4787379 A JP4787379 A JP 4787379A JP 4787379 A JP4787379 A JP 4787379A JP S55141995 A JPS55141995 A JP S55141995A
Authority
JP
Japan
Prior art keywords
current
divider
limiter
variable speed
synchronous motor
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
JP4787379A
Other languages
Japanese (ja)
Other versions
JPS591074B2 (en
Inventor
Osamu Motoyoshi
Toshikatsu Tsuchiya
Hiroshi Osawa
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP54047873A priority Critical patent/JPS591074B2/en
Publication of JPS55141995A publication Critical patent/JPS55141995A/en
Publication of JPS591074B2 publication Critical patent/JPS591074B2/en
Expired 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
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/022—Synchronous motors
    • H02P25/024—Synchronous motors controlled by supply frequency

Landscapes

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

Abstract

PURPOSE:To remove a factor causing an unstable operation by limiting correlatively with a field current dimensional of a torque component current and a phase angle so as not to allow the phase angle to exceed 90 deg.. CONSTITUTION:A current limiter 23 is arranged between a divider 3 and a current command operator 4, and a current limit value at the limiter 23 is indicated by a divider 24. The divider 24 divides a field current if by sindelta given by a flux operator 5 and gives the result to the current limiter 23 as a limit value. Therefore, a command value i2* from the divider 3 is limited to satisfy a condition i2>(if/sindelta) in the current limter 23 and then inputted to the current command operator 4.
JP54047873A 1979-04-20 1979-04-20 Variable speed drive system of synchronous motor Expired JPS591074B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54047873A JPS591074B2 (en) 1979-04-20 1979-04-20 Variable speed drive system of synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54047873A JPS591074B2 (en) 1979-04-20 1979-04-20 Variable speed drive system of synchronous motor

Publications (2)

Publication Number Publication Date
JPS55141995A true JPS55141995A (en) 1980-11-06
JPS591074B2 JPS591074B2 (en) 1984-01-10

Family

ID=12787491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54047873A Expired JPS591074B2 (en) 1979-04-20 1979-04-20 Variable speed drive system of synchronous motor

Country Status (1)

Country Link
JP (1) JPS591074B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000027024A1 (en) * 1998-10-30 2000-05-11 Kabushiki Kaisha Toshiba Apparatus for controlling synchronous motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000027024A1 (en) * 1998-10-30 2000-05-11 Kabushiki Kaisha Toshiba Apparatus for controlling synchronous motor
GB2347283A (en) * 1998-10-30 2000-08-30 Toshiba Kk Apparatus for controlling synchronous motor
GB2347283B (en) * 1998-10-30 2003-03-12 Toshiba Kk Synchronous motor controller

Also Published As

Publication number Publication date
JPS591074B2 (en) 1984-01-10

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