JPS5350422A - Ac motor drive system - Google Patents
Ac motor drive systemInfo
- Publication number
- JPS5350422A JPS5350422A JP12514076A JP12514076A JPS5350422A JP S5350422 A JPS5350422 A JP S5350422A JP 12514076 A JP12514076 A JP 12514076A JP 12514076 A JP12514076 A JP 12514076A JP S5350422 A JPS5350422 A JP S5350422A
- Authority
- JP
- Japan
- Prior art keywords
- drive system
- motor drive
- carrier frequency
- frequency voltage
- abnormal
- 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
Links
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE: To permit abnormal mechanical vibrations of the motor to be quickly stopped by modulating carrier frequency voltage with a power source frequency voltage to produce an output waveform of a drive inverter and varying the carrier frequency according to the abnormal vibrations.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12514076A JPS5350422A (en) | 1976-10-18 | 1976-10-18 | Ac motor drive system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12514076A JPS5350422A (en) | 1976-10-18 | 1976-10-18 | Ac motor drive system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5350422A true JPS5350422A (en) | 1978-05-08 |
Family
ID=14902842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12514076A Pending JPS5350422A (en) | 1976-10-18 | 1976-10-18 | Ac motor drive system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5350422A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60118062A (en) * | 1983-11-28 | 1985-06-25 | Matsushita Electric Ind Co Ltd | Pwm inverter device |
JPS6115590A (en) * | 1984-06-28 | 1986-01-23 | Daikin Ind Ltd | Vibration reducing unit of rotary compressor |
JPS61105047A (en) * | 1984-10-26 | 1986-05-23 | Matsushita Electric Ind Co Ltd | Air conditioner containing pwm inverter |
JPS61177172A (en) * | 1985-01-30 | 1986-08-08 | Toyo Electric Mfg Co Ltd | Pwm inverter controller |
JPS61162300U (en) * | 1985-03-28 | 1986-10-07 | ||
JPS61237947A (en) * | 1985-04-12 | 1986-10-23 | Matsushita Seiko Co Ltd | Ventilating fan |
US6704212B2 (en) | 2002-01-30 | 2004-03-09 | Hitachi, Ltd. | PWM inverter with long carrier wave insertion |
-
1976
- 1976-10-18 JP JP12514076A patent/JPS5350422A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60118062A (en) * | 1983-11-28 | 1985-06-25 | Matsushita Electric Ind Co Ltd | Pwm inverter device |
JPS6115590A (en) * | 1984-06-28 | 1986-01-23 | Daikin Ind Ltd | Vibration reducing unit of rotary compressor |
JPS61105047A (en) * | 1984-10-26 | 1986-05-23 | Matsushita Electric Ind Co Ltd | Air conditioner containing pwm inverter |
JPS61177172A (en) * | 1985-01-30 | 1986-08-08 | Toyo Electric Mfg Co Ltd | Pwm inverter controller |
JPS61162300U (en) * | 1985-03-28 | 1986-10-07 | ||
JPS61237947A (en) * | 1985-04-12 | 1986-10-23 | Matsushita Seiko Co Ltd | Ventilating fan |
US6704212B2 (en) | 2002-01-30 | 2004-03-09 | Hitachi, Ltd. | PWM inverter with long carrier wave insertion |
DE10237882B4 (en) | 2002-01-30 | 2018-06-28 | Hitachi, Ltd. | Pulse Width Modulation, Voltage Transformer and Inverter |
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