JPS5537866A - Speed controller for motor - Google Patents
Speed controller for motorInfo
- Publication number
- JPS5537866A JPS5537866A JP11039378A JP11039378A JPS5537866A JP S5537866 A JPS5537866 A JP S5537866A JP 11039378 A JP11039378 A JP 11039378A JP 11039378 A JP11039378 A JP 11039378A JP S5537866 A JPS5537866 A JP S5537866A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- speed
- load torque
- field current
- calculator
- 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 Direct Current Motors (AREA)
- Dc-Dc Converters (AREA)
Abstract
PURPOSE: To prevent a motor from being overloaded when a load torque changes with time and to raise the running efficiency of the motor, by calculating the load torque in every minimum necessary time and control the motor to a speed appropriate to the load torque.
CONSTITUTION: When a field current setting unit 10 is put at a maximum rated value to apply a speed instruction No, the output of a field current detector 11 is selected by a priority circtit 16 to accelerate the motor by a maximum field current. When the motor reaches a ground speed, the load torque computed by a calculator 17 and a multiplier 18 from the load current and the field current is converted by another calculator 19 into a speed level to which the motor can be acclerated in a field control range. The speed level is stored into an integration memory 20. The speed level is renewed by a logical calculator 22 in every prescribed time to apply a limiter to an amplifier 1 to restrict the speed instruction. Since the motor is limited to the stored speed level, the motor is surely prevented from being overloaded.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53110393A JPS6041552B2 (en) | 1978-09-08 | 1978-09-08 | Electric motor speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53110393A JPS6041552B2 (en) | 1978-09-08 | 1978-09-08 | Electric motor speed control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5537866A true JPS5537866A (en) | 1980-03-17 |
| JPS6041552B2 JPS6041552B2 (en) | 1985-09-17 |
Family
ID=14534664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53110393A Expired JPS6041552B2 (en) | 1978-09-08 | 1978-09-08 | Electric motor speed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6041552B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536945A (en) * | 1978-09-05 | 1980-03-14 | Toray Industries | Flexible printed circuit board |
| JPS61248305A (en) * | 1985-04-24 | 1986-11-05 | 旭化成株式会社 | Substrate for flexible printed wiring |
| JPS62176835A (en) * | 1986-01-31 | 1987-08-03 | 旭化成株式会社 | Substrate for flexible printed wiring |
-
1978
- 1978-09-08 JP JP53110393A patent/JPS6041552B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5536945A (en) * | 1978-09-05 | 1980-03-14 | Toray Industries | Flexible printed circuit board |
| JPS6153880B2 (en) * | 1978-09-05 | 1986-11-19 | Toray Industries | |
| JPS61248305A (en) * | 1985-04-24 | 1986-11-05 | 旭化成株式会社 | Substrate for flexible printed wiring |
| JPS62176835A (en) * | 1986-01-31 | 1987-08-03 | 旭化成株式会社 | Substrate for flexible printed wiring |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6041552B2 (en) | 1985-09-17 |
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