JPS5510862A - Thyristor motor controller - Google Patents
Thyristor motor controllerInfo
- Publication number
- JPS5510862A JPS5510862A JP8310178A JP8310178A JPS5510862A JP S5510862 A JPS5510862 A JP S5510862A JP 8310178 A JP8310178 A JP 8310178A JP 8310178 A JP8310178 A JP 8310178A JP S5510862 A JPS5510862 A JP S5510862A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- value
- altered
- lead angle
- control lead
- 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 Motors That Do Not Use Commutators (AREA)
Abstract
PURPOSE: To prevent the torque of a thyristor motor from varying by varying the current limiting value of a current limiting circuit when a control lead angle is altered.
CONSTITUTION: A synchronous motor 4 is operated via an AC power supply AC, a forward converter 1 and a reverse converter 2. When motor rotating speed is less than predetermined level, a speed judging circuit 15 produces a low level signal, and a phase shifter 13 produces an arc signal that the control lead angle is zero. In this case, the limiting value of the current limiting circuit 8 is set at low value. When the motor rotating speed is raised higher than predetermined value, the circuit 15 produces a high level signal. Thus, the control lead angle is so altered that the reverse converter 3 can naturally commutate, and the limiting value of the circuit 8 is altered to large value. Thus, the limiting value of the circuit 8 is altered to vary the current simultaneously upon variation of the control lead angle to thereby prevent the torque of the motor from varying.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8310178A JPS5510862A (en) | 1978-07-10 | 1978-07-10 | Thyristor motor controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8310178A JPS5510862A (en) | 1978-07-10 | 1978-07-10 | Thyristor motor controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5510862A true JPS5510862A (en) | 1980-01-25 |
Family
ID=13792792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8310178A Pending JPS5510862A (en) | 1978-07-10 | 1978-07-10 | Thyristor motor controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5510862A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104959683A (en) * | 2015-07-06 | 2015-10-07 | 何锦尧 | Forward and reverse rotating system for tapping machine |
-
1978
- 1978-07-10 JP JP8310178A patent/JPS5510862A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104959683A (en) * | 2015-07-06 | 2015-10-07 | 何锦尧 | Forward and reverse rotating system for tapping machine |
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