JPH04161096A - Inverter controller for induction motor - Google Patents

Inverter controller for induction motor

Info

Publication number
JPH04161096A
JPH04161096A JP2282170A JP28217090A JPH04161096A JP H04161096 A JPH04161096 A JP H04161096A JP 2282170 A JP2282170 A JP 2282170A JP 28217090 A JP28217090 A JP 28217090A JP H04161096 A JPH04161096 A JP H04161096A
Authority
JP
Japan
Prior art keywords
power interruption
induction motor
voltage
frequency
converter
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
JP2282170A
Other languages
Japanese (ja)
Other versions
JP2906636B2 (en
Inventor
Ryuhei Watabe
Sachio Ueno
Taiji Morimoto
Yoshiko Nakagawa
Original Assignee
Matsushita Electric Ind 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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Priority to JP2282170A priority Critical patent/JP2906636B2/en
Publication of JPH04161096A publication Critical patent/JPH04161096A/en
Application granted granted Critical
Publication of JP2906636B2 publication Critical patent/JP2906636B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To prevent an induction motor from entering into free-run state by lowering the frequency of output voltage upon DC voltage drop at a converter section due to power interruption or instantaneous power interruption and feeding regenerated power from the induction motor side.
CONSTITUTION: DC voltage at a converter section 4 beings to drop gradually upon power interruption or instantaneous power interruption. DC voltage at the converter section 4 is monitored through a voltage monitoring means 9 and a power interruption detecting means 10 decides power interruption when the DC voltage drops below a reference level. Upon receiving a power interruption detection signal from the power interruption detection means 10, a frequency output means 11 decreases the frequency by an amount reversely proportional to the frequency of the power interruption detection signal and operates an induction motor 13 as a generator in order to supply regenerated power. According to the constitution, the induction motor 13 is prevented from entering into free-run state upon power interruption or instantaneous power interruption.
COPYRIGHT: (C)1992,JPO&Japio
JP2282170A 1990-10-19 1990-10-19 Inverter control device for induction motor Expired - Fee Related JP2906636B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2282170A JP2906636B2 (en) 1990-10-19 1990-10-19 Inverter control device for induction motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2282170A JP2906636B2 (en) 1990-10-19 1990-10-19 Inverter control device for induction motor

Publications (2)

Publication Number Publication Date
JPH04161096A true JPH04161096A (en) 1992-06-04
JP2906636B2 JP2906636B2 (en) 1999-06-21

Family

ID=17649007

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2282170A Expired - Fee Related JP2906636B2 (en) 1990-10-19 1990-10-19 Inverter control device for induction motor

Country Status (1)

Country Link
JP (1) JP2906636B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004025820A1 (en) * 2002-09-13 2004-03-25 Tokyo Electron Limited Rotation drive device and rotation drive method
JP2006197715A (en) * 2005-01-13 2006-07-27 Fuji Electric Fa Components & Systems Co Ltd Controller for ac motor
JP2008113481A (en) * 2006-10-30 2008-05-15 Matsushita Electric Ind Co Ltd Motor control device and air conditioner equipped with the same
JP2010076155A (en) * 2008-09-24 2010-04-08 Mitsubishi Heavy Ind Ltd Rotary printing machine and method for controlling power failure of rotary printing machine
JP2013219898A (en) * 2012-04-06 2013-10-24 Daikin Ind Ltd Control device and heat pump device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004025820A1 (en) * 2002-09-13 2004-03-25 Tokyo Electron Limited Rotation drive device and rotation drive method
US7122988B2 (en) 2002-09-13 2006-10-17 Tokyo Electron Limited Rotation drive device and rotation drive method
JP2006197715A (en) * 2005-01-13 2006-07-27 Fuji Electric Fa Components & Systems Co Ltd Controller for ac motor
JP2008113481A (en) * 2006-10-30 2008-05-15 Matsushita Electric Ind Co Ltd Motor control device and air conditioner equipped with the same
JP2010076155A (en) * 2008-09-24 2010-04-08 Mitsubishi Heavy Ind Ltd Rotary printing machine and method for controlling power failure of rotary printing machine
JP2013219898A (en) * 2012-04-06 2013-10-24 Daikin Ind Ltd Control device and heat pump device

Also Published As

Publication number Publication date
JP2906636B2 (en) 1999-06-21

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees