JPS61285080A - Commutation failure detector of current type inverter - Google Patents

Commutation failure detector of current type inverter

Info

Publication number
JPS61285080A
JPS61285080A JP60125921A JP12592185A JPS61285080A JP S61285080 A JPS61285080 A JP S61285080A JP 60125921 A JP60125921 A JP 60125921A JP 12592185 A JP12592185 A JP 12592185A JP S61285080 A JPS61285080 A JP S61285080A
Authority
JP
Japan
Prior art keywords
current
commutation failure
type inverter
detected
current type
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
JP60125921A
Other languages
Japanese (ja)
Inventor
Toshiyuki Ooyama
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 JP60125921A priority Critical patent/JPS61285080A/en
Publication of JPS61285080A publication Critical patent/JPS61285080A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To effectively and rapidly detect a commutation failure by comparing the DC side current of a current type inverter with an AC side current, and detecting the difference between the high priority of the momentary value of the phase current of AC side and the DC current.
CONSTITUTION: Currents of AC phases are detected by AC detectors 12, and input to high priority circuits 13. The circuit 13 selects the maximum value of the positive momentary value of the input phase currents, and outputs it to a subtractor 14. The DC side input voltage of a current type inverter 5 is detected by a DC current detector 11, and the subtractor 14 calculates the difference between the detected DC current and the current output from the circuit 13. When the difference becomes the prescribed value or higher, the output of a comparator 15 becomes '1' to warn that a commutation failure occurs in the inverter.
COPYRIGHT: (C)1986,JPO&Japio
JP60125921A 1985-06-10 1985-06-10 Commutation failure detector of current type inverter Pending JPS61285080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60125921A JPS61285080A (en) 1985-06-10 1985-06-10 Commutation failure detector of current type inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60125921A JPS61285080A (en) 1985-06-10 1985-06-10 Commutation failure detector of current type inverter

Publications (1)

Publication Number Publication Date
JPS61285080A true JPS61285080A (en) 1986-12-15

Family

ID=14922239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60125921A Pending JPS61285080A (en) 1985-06-10 1985-06-10 Commutation failure detector of current type inverter

Country Status (1)

Country Link
JP (1) JPS61285080A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2058936A1 (en) * 2006-08-30 2009-05-13 Daikin Industries, Ltd. Current control type power conversion device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2058936A1 (en) * 2006-08-30 2009-05-13 Daikin Industries, Ltd. Current control type power conversion device
EP2058936A4 (en) * 2006-08-30 2013-12-11 Daikin Ind Ltd Current control type power conversion device

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