GB1151446A - Method of Controlling the Speed of Revolution of D.C. Motors and Control Circuits for carrying out the Method - Google Patents
Method of Controlling the Speed of Revolution of D.C. Motors and Control Circuits for carrying out the MethodInfo
- Publication number
- GB1151446A GB1151446A GB2342266A GB2342266A GB1151446A GB 1151446 A GB1151446 A GB 1151446A GB 2342266 A GB2342266 A GB 2342266A GB 2342266 A GB2342266 A GB 2342266A GB 1151446 A GB1151446 A GB 1151446A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diode
- supply
- cycles
- breakdown
- speed
- 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.)
- Expired
Links
- 230000015556 catabolic process Effects 0.000 abstract 5
- 239000003990 capacitor Substances 0.000 abstract 4
- 238000010304 firing Methods 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/292—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC
- H02P7/295—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using static converters, e.g. AC to DC of the kind having one thyristor or the like in series with the power supply and the motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
1,151,446. Control of D.C. motors. HEBERLEIN & CO. A.G. 25 May, 1966 [25 May, 1965; 21 Dec., 1965; 21 April, 1966], No. 23422/66. Heading H2J. [Also in Division G3] The speed of a D.C. motor supplied from an A.C. source is kept constant by adjustment of the firing angle of a controlled rectifier (thyristor) 3 by a system in which the motor back E.M.F. charges a triggering capacitor 9 negatively (top plate, through 10 and 6) during negative halfcycles of the supply (top terminal) to an extent, at least at the lower end of the speed range, depending upon the back E.M.F. so that during positive half-cycles of the supply the time taken for the capacitor to reach the necessary positive triggering potential also depends upon the back E.M.F. As shown, a breakdown diode 7 limits the negative charge on 9 at higher speeds to protect the thyristor; speed control is then effected by the fact that the positive charging of 9 from the supply is opposed by the back E.M.F. Speed is adjusted by rheostat 8 effective during positive half-cycles. The diode 7 also breaks down in the positive direction to apply the triggering pulse. The shunt field 2 is maintained by a capacitor 11. In Fig. 3 (not shown), the breakdown diode 7 is replaced by a transistor and diode in series conductive on positive half-cycles, the thyristor then being protected by a shunting Zener diode (13). Fig. 4 (not shown) again uses a breakdown diode but negative breakdown is prevented by a normal diode (15) in series. Fig. 5 (not shown) operates similarly to Fig. 1, but supply diodes 4 and 5 are re-arranged. Fig. 6 (not shown) illustrates a system in which the capacitor is negatively charged by the supply voltage added to the back E.M.F. during negative half-cycles and this charge is reversed by the supply during positive half-cycles, until the firing point is reached. In Figs. 8 and 9 (not shown), the system is applied to a series motor and the breakdown device is a " glow tube."
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH731365A CH423942A (en) | 1965-05-25 | 1965-05-25 | Method for speed and torque control of a direct current shunt motor and circuit for carrying out the method |
| CH1762265A CH456742A (en) | 1965-12-21 | 1965-12-21 | Method for speed and torque control of a direct current shunt motor, and thyristor circuit for carrying out the method |
| CH577966A CH450528A (en) | 1966-04-21 | 1966-04-21 | Method for speed and torque control of a direct current main circuit motor and thyristor circuit for carrying out the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1151446A true GB1151446A (en) | 1969-05-07 |
Family
ID=27175334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2342266A Expired GB1151446A (en) | 1965-05-25 | 1966-05-25 | Method of Controlling the Speed of Revolution of D.C. Motors and Control Circuits for carrying out the Method |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE681585A (en) |
| DE (1) | DE1538562A1 (en) |
| GB (1) | GB1151446A (en) |
| NL (1) | NL6607219A (en) |
-
1966
- 1966-05-21 DE DE19661538562 patent/DE1538562A1/en active Pending
- 1966-05-25 NL NL6607219A patent/NL6607219A/xx unknown
- 1966-05-25 GB GB2342266A patent/GB1151446A/en not_active Expired
- 1966-05-25 BE BE681585D patent/BE681585A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1538562A1 (en) | 1970-01-29 |
| BE681585A (en) | 1966-11-25 |
| NL6607219A (en) | 1966-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1207553A (en) | Improvements in current limiting arrangements for motor control systems | |
| GB1270840A (en) | Voltage regulators for direct current supplies | |
| GB1139320A (en) | Improvements in or relating to speed-control circuits for commutator motors | |
| GB960797A (en) | Control system for electric motor | |
| GB1235247A (en) | Feedback speed control | |
| GB1187079A (en) | Improvements in Electromagnetic Clutch Control. | |
| GB1151446A (en) | Method of Controlling the Speed of Revolution of D.C. Motors and Control Circuits for carrying out the Method | |
| GB1136050A (en) | Control systems for electric motors | |
| GB1225475A (en) | ||
| GB1181646A (en) | Speed Control System for a D.C. Electric Motor | |
| GB1231910A (en) | ||
| GB1179567A (en) | Improvements in or relating to Power Controllers | |
| GB1261442A (en) | Speed control circuits for electric motors | |
| GB1465609A (en) | Control devices for semiconductor controlled rectifiers | |
| GB1079525A (en) | Speed control system for centrifuge motors and the like | |
| ES369981A1 (en) | Crossfire protection technique | |
| US3381196A (en) | System for controlling excitation to synchronous motor during starting | |
| US3931558A (en) | SCR motor speed control system with trigger stabilization circuit | |
| GB1013803A (en) | Pulse type regulating system for generators | |
| GB1217033A (en) | Precipitator control apparatus | |
| GB1152811A (en) | Power Supply System for D.C. Motors | |
| GB1187309A (en) | Improvements in Alternating Current Generators | |
| GB1215723A (en) | Speed control circuit for a single phase commutator electric motor | |
| GB1470239A (en) | Electronic adjusting and regulating device | |
| GB1021160A (en) | Lift control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |