JPS5475521A - Speed control device of motor - Google Patents
Speed control device of motorInfo
- Publication number
- JPS5475521A JPS5475521A JP14271077A JP14271077A JPS5475521A JP S5475521 A JPS5475521 A JP S5475521A JP 14271077 A JP14271077 A JP 14271077A JP 14271077 A JP14271077 A JP 14271077A JP S5475521 A JPS5475521 A JP S5475521A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- motor
- control
- value
- basic
- 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 Direct Current Motors (AREA)
Abstract
PURPOSE: To prevent overload, and at the same time, facilitate to control acceleration, by making memory of predetermined speed signal which is coresponded to armature current in basic speed of a motor, and limiting speed instruction value in this memory content.
CONSTITUTION: Automatic speed control series which control speed of electric motor M, coresponded to speed instruction No and automatic field weakening control series which control field weakening control over basic speed of the motor M are prepared, when speed is controlled, signal of armature current detector 6 is inverted to revolution number by a calculator 17, is memorized in an integrated circuit 18, and output of an amplifier 1 of speed instruction value is limited through limiter circuit 19. Therefore, overload of the motor can be prevented and working efficiency can be improved, because limiter is acted to a value which is equivalent to rated revolution number upto basic speed in the amplifier 1, and when basic speed is reached, load is limited to memory value of the integrated circuit 18.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14271077A JPS5475521A (en) | 1977-11-30 | 1977-11-30 | Speed control device of motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14271077A JPS5475521A (en) | 1977-11-30 | 1977-11-30 | Speed control device of motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5475521A true JPS5475521A (en) | 1979-06-16 |
Family
ID=15321761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14271077A Pending JPS5475521A (en) | 1977-11-30 | 1977-11-30 | Speed control device of motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5475521A (en) |
-
1977
- 1977-11-30 JP JP14271077A patent/JPS5475521A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5475521A (en) | Speed control device of motor | |
JPS5468609A (en) | Tape running control method | |
JPS534947A (en) | Controller for elevator | |
JPS5759493A (en) | Overcurrent detecting system at variable frequency controlling time | |
JPS51150020A (en) | Automatic load adjusting device of generator | |
WIMMER | Experimental evaluation of a volts-per-hertz reference circuit for the isotope Brayton system(Experimental evaluation of volts-per-hertz reference curcuit incorporated in voltage regulator to control turbine-driven alternator with application to Brayton cycle space power system) | |
JPS5537866A (en) | Speed controller for motor | |
JPS53123831A (en) | Hunting protection device of hysteresis motors | |
JPS5442638A (en) | Circuit breaker | |
JPS5274814A (en) | Speed limiter for motor | |
JPS52146818A (en) | Device for restricting shaft torque variation in rotary shaft system | |
JPS5361024A (en) | Power-off reset device for inverter | |
JPS5494628A (en) | Governor device of alternating current generator | |
JPS541847A (en) | Setting reset current in automatic current limiter | |
JPS5419111A (en) | Controlling motor with shunt field winding | |
JPS57102577A (en) | Wind power generator | |
JPS52120353A (en) | Protective device for dc power transmission system | |
JPS5425246A (en) | Speed control apparatus for welding wire feeding motor | |
JPS5532436A (en) | Inverter | |
JPS5362151A (en) | Checking circuit for circuit breaker | |
JPS5289701A (en) | Controlling circuit for the number of rotations of turbine | |
JPS53135001A (en) | Driving system for turbo-machines | |
JPS5391357A (en) | Digital protective relay device | |
JPS5332321A (en) | Acceleration and deceleration control system for ac motor | |
JPS52135033A (en) | Generator protective device |