JPS5388908A - Abnormality decision in motor parallel operation - Google Patents
Abnormality decision in motor parallel operationInfo
- Publication number
- JPS5388908A JPS5388908A JP294777A JP294777A JPS5388908A JP S5388908 A JPS5388908 A JP S5388908A JP 294777 A JP294777 A JP 294777A JP 294777 A JP294777 A JP 294777A JP S5388908 A JPS5388908 A JP S5388908A
- Authority
- JP
- Japan
- Prior art keywords
- parallel operation
- motor parallel
- abnormality decision
- decision
- abnormality
- 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 Multiple Motors (AREA)
Abstract
PURPOSE: To facilitate the decision at start, acceleration and normal time and enable the decision of power failure by comparing the mean value of the induced frequency in a number of motors and the frequency of individual motors and determining the abnormality of the motor operation status.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP294777A JPS5388908A (en) | 1977-01-17 | 1977-01-17 | Abnormality decision in motor parallel operation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP294777A JPS5388908A (en) | 1977-01-17 | 1977-01-17 | Abnormality decision in motor parallel operation |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5388908A true JPS5388908A (en) | 1978-08-04 |
Family
ID=11543555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP294777A Pending JPS5388908A (en) | 1977-01-17 | 1977-01-17 | Abnormality decision in motor parallel operation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5388908A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4644232A (en) * | 1983-10-19 | 1987-02-17 | Hitachi, Ltd. | Method of and an apparatus for controlling a plurality of DC motors |
WO2019244194A1 (en) * | 2018-06-18 | 2019-12-26 | 三菱電機株式会社 | Motor drive device and refrigeration cycle application device |
-
1977
- 1977-01-17 JP JP294777A patent/JPS5388908A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4644232A (en) * | 1983-10-19 | 1987-02-17 | Hitachi, Ltd. | Method of and an apparatus for controlling a plurality of DC motors |
WO2019244194A1 (en) * | 2018-06-18 | 2019-12-26 | 三菱電機株式会社 | Motor drive device and refrigeration cycle application device |
JPWO2019244194A1 (en) * | 2018-06-18 | 2020-12-17 | 三菱電機株式会社 | Motor drive and refrigeration cycle applicable equipment |
CN112272917A (en) * | 2018-06-18 | 2021-01-26 | 三菱电机株式会社 | Motor driving device and refrigeration cycle application equipment |
CN112272917B (en) * | 2018-06-18 | 2024-05-03 | 三菱电机株式会社 | Motor driving device and refrigeration cycle application equipment |
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