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JPS61162300U - - Google Patents

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Publication number
JPS61162300U
JPS61162300U JP4544385U JP4544385U JPS61162300U JP S61162300 U JPS61162300 U JP S61162300U JP 4544385 U JP4544385 U JP 4544385U JP 4544385 U JP4544385 U JP 4544385U JP S61162300 U JPS61162300 U JP S61162300U
Authority
JP
Japan
Prior art keywords
carrier frequency
inverter
electric motor
minimum value
sensor circuit
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
JP4544385U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP4544385U priority Critical patent/JPS61162300U/ja
Publication of JPS61162300U publication Critical patent/JPS61162300U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の一実施例を示す回路図である。 1……誘導電動機、2……インバータ主回路、
5……速度設定器、6……電圧―周波数変換器、
7……ROM、8……D/A変換器、9……キヤ
リア発生回路、10……コンパレータ、11……
ゲート回路、12……センサ、13……検出回路
、14……最小値ホールド回路、15……キヤリ
ア周波数設定回路。
The drawing is a circuit diagram showing an embodiment of the present invention. 1...Induction motor, 2...Inverter main circuit,
5... Speed setting device, 6... Voltage-frequency converter,
7...ROM, 8...D/A converter, 9...Carrier generation circuit, 10...Comparator, 11...
Gate circuit, 12...sensor, 13...detection circuit, 14...minimum value hold circuit, 15...carrier frequency setting circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電動機を駆動するPWM方式インバータにおい
て、電動機の振動又は該振動による騒音を検出す
るセンサ回路と、インバータのキヤリア周波数を
その許容範囲の最小値から最大値まで変化させた
ときの前記センサ回路からの検出レベルが最小値
になるように該キヤリア周波数を設定するキヤリ
ア周波数制御回路とを備えたことを特徴とするP
WM方式インバータ。
In a PWM type inverter that drives an electric motor, a sensor circuit detects vibrations of the electric motor or noise caused by the vibrations, and detection from the sensor circuit when the carrier frequency of the inverter is changed from a minimum value to a maximum value within its allowable range. A carrier frequency control circuit that sets the carrier frequency so that the level becomes a minimum value.
WM method inverter.
JP4544385U 1985-03-28 1985-03-28 Pending JPS61162300U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4544385U JPS61162300U (en) 1985-03-28 1985-03-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4544385U JPS61162300U (en) 1985-03-28 1985-03-28

Publications (1)

Publication Number Publication Date
JPS61162300U true JPS61162300U (en) 1986-10-07

Family

ID=30558951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4544385U Pending JPS61162300U (en) 1985-03-28 1985-03-28

Country Status (1)

Country Link
JP (1) JPS61162300U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01303093A (en) * 1988-05-30 1989-12-06 Daikin Ind Ltd Controller for pulse width modulation of inverter
JPH02136072A (en) * 1988-11-17 1990-05-24 Mitsubishi Electric Corp Pulse width modulation type inverter device
JPH10127089A (en) * 1996-10-02 1998-05-15 Lucent Technol Inc Method for reducing tone energy emitted from rotary machine
JP2009060723A (en) * 2007-08-31 2009-03-19 Fuji Electric Systems Co Ltd Control device for power conversion device and stationary auxiliary power supply device for vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5350422A (en) * 1976-10-18 1978-05-08 Mitsubishi Electric Corp Ac motor drive system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5350422A (en) * 1976-10-18 1978-05-08 Mitsubishi Electric Corp Ac motor drive system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01303093A (en) * 1988-05-30 1989-12-06 Daikin Ind Ltd Controller for pulse width modulation of inverter
JPH02136072A (en) * 1988-11-17 1990-05-24 Mitsubishi Electric Corp Pulse width modulation type inverter device
JPH10127089A (en) * 1996-10-02 1998-05-15 Lucent Technol Inc Method for reducing tone energy emitted from rotary machine
JP2009060723A (en) * 2007-08-31 2009-03-19 Fuji Electric Systems Co Ltd Control device for power conversion device and stationary auxiliary power supply device for vehicle

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