JPS5478420A - Controller for thyristor motor - Google Patents
Controller for thyristor motorInfo
- Publication number
- JPS5478420A JPS5478420A JP14500677A JP14500677A JPS5478420A JP S5478420 A JPS5478420 A JP S5478420A JP 14500677 A JP14500677 A JP 14500677A JP 14500677 A JP14500677 A JP 14500677A JP S5478420 A JPS5478420 A JP S5478420A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- differentiation
- control circuit
- signal
- current
- 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
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
PURPOSE: To reduce the torque ripple, by supplying a current control circuit with a speed differentiation signal at the inverse polarity to a current instruction signal when the thyristor motor is at a specific speed for resonance frequency.
CONSTITUTION: The synchronous motor 5 is equipped with a position detector 6 and speed generator 7, which control a power rectifier 2 and a power inverter 4. Except at the specific speed for resonance frequency, a differentiation circuit 16 does not perform differentiation but serves as a speed control circuit having the current control circuit in a minor loop. At the specific speed, a specific speed detection circuit 14 generates an output, thereby turning on an analogue gate 15. At that time, the differentiation circuit 16 differentiates a speed signal. The current control circuit 11 is supplied with the speed differentiation signal at the inverse polarity to the current instruction signal. As a result, the current is controlled to suppress the change in the speed. Therefore, the speed variation is reduced.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52145006A JPS5953794B2 (en) | 1977-12-05 | 1977-12-05 | Thyristor motor control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52145006A JPS5953794B2 (en) | 1977-12-05 | 1977-12-05 | Thyristor motor control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5478420A true JPS5478420A (en) | 1979-06-22 |
JPS5953794B2 JPS5953794B2 (en) | 1984-12-26 |
Family
ID=15375261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52145006A Expired JPS5953794B2 (en) | 1977-12-05 | 1977-12-05 | Thyristor motor control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5953794B2 (en) |
-
1977
- 1977-12-05 JP JP52145006A patent/JPS5953794B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5953794B2 (en) | 1984-12-26 |
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