JPS5472422A - Blushless synchlonous motor - Google Patents
Blushless synchlonous motorInfo
- Publication number
- JPS5472422A JPS5472422A JP13948377A JP13948377A JPS5472422A JP S5472422 A JPS5472422 A JP S5472422A JP 13948377 A JP13948377 A JP 13948377A JP 13948377 A JP13948377 A JP 13948377A JP S5472422 A JPS5472422 A JP S5472422A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- winding
- synchronous motor
- exciter
- switch
- 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
- Motor And Converter Starters (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE: To make one rotary machine serve a double purpose for a start-up motor and an AC exciter for exciting field winding by making the rotor winding of AC exciter a 3-phase winding and driving it as an induction motor at the starting-up of synchronous motor.
CONSTITUTION: At the starting-up of the synchronous motor 3, the switch 15 is closed to supply power to the rotor winding 5c of the AC exciter 5 with 3-phase winding, while in the circuit of the rotor 5A, the self-turn off type semiconductor 13 is turned off to keep the thyristor for making excitation under a turn-off condition. Then, open loop is formed to start the induction motor, and then if it is accelerated up to near synthronous speed, normal operation can be obtained by supplying the AC current 1 to the synchronous motor 3, opening the switch 15, and closing the switch 17. Thus, no current flows in the rotor winding and field winding of the synchronous motor 3 at the time of start-up, thus eliminating various troubles caused by starting current.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13948377A JPS5472422A (en) | 1977-11-22 | 1977-11-22 | Blushless synchlonous motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13948377A JPS5472422A (en) | 1977-11-22 | 1977-11-22 | Blushless synchlonous motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5472422A true JPS5472422A (en) | 1979-06-09 |
Family
ID=15246294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13948377A Pending JPS5472422A (en) | 1977-11-22 | 1977-11-22 | Blushless synchlonous motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5472422A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5959091A (en) * | 1982-09-29 | 1984-04-04 | Toshiba Corp | Operating method for commutatorless motor |
-
1977
- 1977-11-22 JP JP13948377A patent/JPS5472422A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5959091A (en) * | 1982-09-29 | 1984-04-04 | Toshiba Corp | Operating method for commutatorless motor |
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