AT66438B - Device for the quick starting and control of DC motors that are used to drive vehicle propellers. - Google Patents
Device for the quick starting and control of DC motors that are used to drive vehicle propellers.Info
- Publication number
- AT66438B AT66438B AT66438DA AT66438B AT 66438 B AT66438 B AT 66438B AT 66438D A AT66438D A AT 66438DA AT 66438 B AT66438 B AT 66438B
- Authority
- AT
- Austria
- Prior art keywords
- motors
- control
- drive vehicle
- armature
- quick starting
- Prior art date
Links
- 238000004804 winding Methods 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- H02P7/08—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 manual control without auxiliary power
- H02P7/14—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 manual control without auxiliary power of voltage applied to the armature with or without control of field
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H15/00—Marine propulsion by use of vessel-mounted driving mechanisms co-operating with anchored chains or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
- B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
- C01B32/55—Solidifying
-
- 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
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/18—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels
- B63H2021/216—Control means for engine or transmission, specially adapted for use on marine vessels using electric control means
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Power Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Direct Current Motors (AREA)
- Motor And Converter Starters (AREA)
Description
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gesamte Stromstoss wird also stets zur Beschleunigung oder Verzögerung des Propellers ausgenutzt, so dass diese ausserordentlich sehnen auf hohe oder geringe Geschwindigkeit gebracht werden kann.
Die Dauer des auftretenden Stromstosses wirdhiedutch so erheblich beschränkt, dass die Wicklungen des Motors nicht übermässig auf Erwärmung beansprucht werden. Auch die Kommutierung des starken Stromstosses findet funkenfrei statt, da die Ankergeschwindigkeit bei seinem Auftreten nur gering ist und ausserdem die Erwärmung der Kohlen bis zum Funken immerhin eine gewisse Zeit beansprucht.
Um von der grossen Zeitkonstante des Erregerstromkreises und dem dadurch bedingten langsamen Ansteigen des Feldes unabhängig zu sein, wird man die Erregung der Motoren dauernd an Spannung liegen lassen, so dass bereits im Momente des Einschaltens des Ankerstromco volle Feldstärke herrscht.
Wegen der stets vorhandenen Selbstinduktion des Ankerstromkreises setzt der Strem im Einschaltmomente mit dem Werte Null ein, er gelangt erst nach Ablauf einer allerdings sehr kurzen Zeit auf seinen Maximalwert. um dann wegen der schnell zunehmenden Geschwindigkeit des Motors wieder zu fallen und schliesslich auf seinen normalen Wert zu gelangen. Es kann vorkommen. dass die Selbstinduktion des Ankers bei grossen Maschinen so gering ist, dass der maximale Stromstoss übermässig gross wird und Schädigungen am Motor und an der speisenden Akkumu- latorenbatterie im Gefolge hat. Um derartige Störungen zu vermeiden. soll im Ankerstromkreis eine Selbstinduktionsspule vorgeschaltet werden, die die Schnelligkeit des Strommanstieges und das Maximum des Stromes beliebig zu begrenzen gestattet.
Sehr vorteilhaft ist es, wenn man die Selbstinduktion in die Maschine selbst verlegt, indem man die Feldmagnete mit einer vom Ankerstrom durchflossenen Kompoundierungswickiung versieht. Es tritt dann nicht nur die reine Selbstinduktionswirkung auf, sondern der Stromstoss wird auch dadurch geschwächt, dass durch das starke Feld auch bei kleiner Geschtndigko ! des Motors bereits grössere gegenelektromotorische Kräfte induziert werden. Besonders zweckmässig ist es, die Kompoundierungswicklung nicht unmittelbar 111 Reihe mit dem Ankerstrom zu schalten, sondern sie durch einen Transformator induktiv mit dem Ankerkrose zu kuppen.
Man erreicht dadurch die Wirkung, dass nur der starke Anstieg des Stromes tüi Anfang der Beschleunigungsperiode auf das Feld des Motors und damit auf die Gfgen-EMK wirkt. dass dagegen im normalen Betriebe der Maschine keine Beeinflussung des Magnetfeldes durch den Ankersttum stattfindet, die die Betriebseigenschaft des Motor ? verändert.
Es kann nützlich sein, anstatt eines gewöhnlichen Schalters zum Einschalten des Anker- stromes einen Schalter mit Schutzwiderstand zu verwenden. Dieser besitzt wegen semer ausser@
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eine erhebliche Raum- und Gewichtsersparms erzielt, die bei vielen Fahrzeugen von ausschlaggebender Bedeutung für die Anwendung des Systames ist. Der grösste Vorteil liegt aber darm begründet, dass die Manövrierfähigkeit des Fahrzeuges ausserordentlich verbessert wird. weil die Anlass- oder Umnsteuerzeit des Propellers auf wenige Sekunden herabgedrückt wird. während sie bei den bisherigen Antriebsarten gewöhnlich erhebliche Bruchteile von Minuten betrug.
PATENT-ANSPRÜCHE :
1. Einrichtung zum schnellen Anlassen oder schnellen Regeln und Umkehren der Geschwindigkeit von Nebenschluss-oder Kompoundmotoren die zum Antriebe von Fahrzcugpropellern dienen dadurch gekennzeichnet, dass bei erregtem Felde der Anker ohne Anlass widerstand geschaltet wird.
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The entire current surge is therefore always used to accelerate or decelerate the propeller, so that this extremely long can be brought to high or low speed.
The duration of the current surge that occurs is limited to such an extent that the windings of the motor are not subjected to excessive heating. The commutation of the strong current surge also takes place without sparks, since the armature speed is only low when it occurs and, in addition, the heating of the coals up to the spark takes a certain amount of time.
In order to be independent of the large time constant of the excitation circuit and the resulting slow increase in the field, the excitation of the motors will be kept permanently connected to voltage so that the full field strength already prevails when the armature current is switched on.
Due to the constant self-induction of the armature circuit, the current begins at the moment of switch-on with the value zero, but only reaches its maximum value after a very short time. only to then fall again due to the rapidly increasing speed of the motor and finally return to its normal value. It can happen. that the self-induction of the armature in large machines is so low that the maximum current surge becomes excessively large and results in damage to the motor and the supplying accumulator battery. To avoid such interference. a self-induction coil is to be connected upstream in the armature circuit, which allows the speed of the current rise and the maximum of the current to be limited as desired.
It is very advantageous to move the self-induction into the machine itself, by providing the field magnets with a compounding winding through which the armature current flows. In this case, not only does the pure self-induction effect occur, but the current surge is also weakened by the fact that the strong field means that even when there is little shock! of the motor already greater counter-electromotive forces are induced. It is particularly expedient not to connect the compounding winding directly in series with the armature current, but rather to dome it inductively with the armature taper by means of a transformer.
This achieves the effect that only the strong rise in the current at the beginning of the acceleration period acts on the field of the motor and thus on the Gfgen EMF. on the other hand, that in normal operation of the machine there is no influence of the armature on the magnetic field, which affects the operating characteristics of the motor? changed.
It can be useful to use a switch with a protective resistor instead of an ordinary switch to switch on the armature current. This has because of semer except @
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A considerable saving in space and weight is achieved, which is of decisive importance for the use of the system in many vehicles. The biggest advantage, however, is that the maneuverability of the vehicle is greatly improved. because the starting or reversing time of the propeller is reduced to a few seconds. while it was usually considerable fractions of minutes with previous types of drive.
PATENT CLAIMS:
1. Device for quick starting or quick regulation and reversal of the speed of shunt or compound motors which are used to drive Fahrzcugpropellern characterized in that when the field is excited, the armature is switched without starting resistance.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE836X | 1912-01-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT66438B true AT66438B (en) | 1914-08-25 |
Family
ID=84982820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT66438D AT66438B (en) | 1912-01-27 | 1912-12-06 | Device for the quick starting and control of DC motors that are used to drive vehicle propellers. |
Country Status (4)
Country | Link |
---|---|
AT (1) | AT66438B (en) |
FR (1) | FR453580A (en) |
GB (2) | GB191302136A (en) |
NL (1) | NL836C (en) |
-
1912
- 1912-12-06 AT AT66438D patent/AT66438B/en active
-
1913
- 1913-01-09 NL NL1881A patent/NL836C/en active
- 1913-01-25 FR FR453580A patent/FR453580A/en not_active Expired
- 1913-01-27 GB GB191302136D patent/GB191302136A/en not_active Expired
- 1913-06-06 GB GB191313148D patent/GB191313148A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR453580A (en) | 1913-06-11 |
GB191302136A (en) | 1913-06-26 |
NL836C (en) | 1915-09-15 |
GB191313148A (en) | 1914-04-02 |
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