JPS5288720A - Frequency converting system - Google Patents

Frequency converting system

Info

Publication number
JPS5288720A
JPS5288720A JP529976A JP529976A JPS5288720A JP S5288720 A JPS5288720 A JP S5288720A JP 529976 A JP529976 A JP 529976A JP 529976 A JP529976 A JP 529976A JP S5288720 A JPS5288720 A JP S5288720A
Authority
JP
Japan
Prior art keywords
frequency converting
converting system
settled
value
speed
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
JP529976A
Other languages
Japanese (ja)
Other versions
JPS5628477B2 (en
Inventor
Akio Hirata
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 JP529976A priority Critical patent/JPS5288720A/en
Publication of JPS5288720A publication Critical patent/JPS5288720A/en
Publication of JPS5628477B2 publication Critical patent/JPS5628477B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: To perform the stable speed control even in an open loop by means that at the time of normal and reversed rotational acceleration and of settled speed of an alternating current motor, when the output current has overstepped the settled value, the output frequency is dwindled to control V/F ratio to be within the settled value.
COPYRIGHT: (C)1977,JPO&Japio
JP529976A 1976-01-20 1976-01-20 Frequency converting system Granted JPS5288720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP529976A JPS5288720A (en) 1976-01-20 1976-01-20 Frequency converting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP529976A JPS5288720A (en) 1976-01-20 1976-01-20 Frequency converting system

Publications (2)

Publication Number Publication Date
JPS5288720A true JPS5288720A (en) 1977-07-25
JPS5628477B2 JPS5628477B2 (en) 1981-07-02

Family

ID=11607357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP529976A Granted JPS5288720A (en) 1976-01-20 1976-01-20 Frequency converting system

Country Status (1)

Country Link
JP (1) JPS5288720A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5878799U (en) * 1981-11-24 1983-05-27 株式会社荏原製作所 Pump device powered by solar cells

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5878799U (en) * 1981-11-24 1983-05-27 株式会社荏原製作所 Pump device powered by solar cells

Also Published As

Publication number Publication date
JPS5628477B2 (en) 1981-07-02

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