DE965590C - Device for speed control of a direct current shunt motor fed from the alternating current network via transformers and rectifiers - Google Patents
Device for speed control of a direct current shunt motor fed from the alternating current network via transformers and rectifiersInfo
- Publication number
- DE965590C DE965590C DEL11397A DEL0011397A DE965590C DE 965590 C DE965590 C DE 965590C DE L11397 A DEL11397 A DE L11397A DE L0011397 A DEL0011397 A DE L0011397A DE 965590 C DE965590 C DE 965590C
- Authority
- DE
- Germany
- Prior art keywords
- voltage
- rectifiers
- speed control
- fed
- tapped
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ac-Ac Conversion (AREA)
Description
Die Erfindung betrifft die Verbesserung einer bekannte.nVorrichtu.ng zur Drehzahlsteuerung eines aus dem Wechselstromnetz über Transformatoren und Gleichrichter gespeisten Gleichsüromnebenschlußmotors durch gleichzeitige und gegensinnige Änderung der Anker- und Feldspannung.The invention relates to the improvement of a known device for speed control of one from the alternating current network via transformers and rectifiers fed equal shunt motor by simultaneous and opposite change the armature and field voltage.
Bei der bekannten Vorrichtung werden von der Sekundärseite des Transformators durch einen beweglichen Abgriff zwei veränderbare Spannungen abgenommen, die zur Speisung der Anker- und Erregerwicklung des Motors dienen. Hiervon unterscheidet sich cAie Erfindung im wesentlichen und vorteilhaft dadurch, daß Anker- und Erregerwicklung in einem anderen Verhältnis als dem der abgegriffenenSpannungen gespeist werden, indem der Anker von der einen abgegriffenen Spannung, die Erregerwicklung aber von der anderen abgegriffenen Spannung zuzüglich einer zu ihr in Reihe geschalteten festen Zusatzspannung gespeist wird. Durch -diese Anordnung wird gegenüber der bekannten Vorrichtung der Vorteil erzielt, daß der Motor stets eine Mindesterregung entsprechend der Zusatzspannung und daher auch dann eine stabile Drehzahl besitzt, wenn der veränderbare Erreäerspannungsanteil durch entsprechende Verstellung des Abgriffs zu Null gemacht wird.In the known device are from the secondary side of the transformer two variable voltages removed by a movable tap, which are used for Serve the armature and excitation winding of the motor. This differs from this The invention is essentially and advantageously due to the fact that armature and excitation windings are fed in a different ratio than that of the tapped voltages, by the armature from the one tapped voltage, but the exciter winding from the other tapped voltage plus one connected in series with it fixed additional voltage is fed. By -this arrangement is compared to the known Device achieved the advantage that the motor always has a minimum excitation accordingly the additional voltage and therefore also has a stable speed when the changeable Erreäerspannungsteil made by appropriate adjustment of the tap to zero will.
Zur Anpassung der zu liefernden Spannung an -den gewünscht@ein Regelbereich und die erforderliche Leistung speist man mit der einen der abgegriffenen Spannungen die Primärwicklung eines weiteren. Transformators. Die Speisung des Gleichstrommoito,rs erfolgt über Gleichrichter, an die weahselstro:mseitig die gesteuerten Spannungen angelegt werden. Die Transfo.rmato@ren können als Spartransformatoren ausgebildet sein.To adapt the voltage to be supplied to the desired @ a control range and the required power is fed with one of the tapped voltages the primary winding of another. Transformer. The supply of the direct current moito, rs takes place via a rectifier to which the controlled voltages are sent be created. The Transfo.rmato@ren can be designed as autotransformers be.
Fig, i der Zeichnung zeigt ein Ausführungsbeispiel der Erfindung. Die Primärwicklung i des Transfö:rmators 3 erhält ihre Spannung aus dem Netz 2. Sekundärseitig sind zwei Wicklungen q. und 5 angebracht. Beiderseits des Abgriffs 6 an der Wicktung q. liegen: die, beiden Spannungen U1 und U2. An der Wicklung 5 entsteht die Spannung UZ. Die Wechselspannung Ui wird durch Gleichrichter 7 in eine Gleichspannung umgewandelt, die den Ankex io eines Gleichstrommotors speist. Die Erregerwicklung 9 des Motors erhält über Gleichrichter 8 die Spannung U2 -h UZ. Durch Verschieben des Abgriffs 6 wird die Spannung an der Erregerwicklung 9 und dem Anker io gegensinnig gesteuert, wobei aber die Erregerwicklung einen relativ kleineren Anteil der Spannungsänderung erhält.Fig, i of the drawing shows an embodiment of the invention. The primary winding i of the transformer 3 receives its voltage from the network 2. There are two windings q on the secondary side. and 5 attached. Both sides of the tap 6 on the winding q. lie: the, two voltages U1 and U2. On the winding 5 the voltage UZ arises. The AC voltage Ui is converted into a by rectifier 7 Converted to DC voltage that feeds the Ankex io of a DC motor. the Excitation winding 9 of the motor receives the voltage U2 -h UZ via rectifier 8. By moving the tap 6, the voltage across the field winding 9 and the armature io controlled in opposite directions, but the excitation winding a relative receives a smaller proportion of the voltage change.
In Fig. 2 der Zeichnung wird die Spannung U2 über einen weiteren Transformator i i in die Spannung U3 =gespannt, und diese liegt mit der festen Spannung UZ in Reihe. Der Transformator 3 ist hier beispielsweise als Spartransformator ausgebildet.In Fig. 2 of the drawing, the voltage U2 is via a further transformer i i into the voltage U3 = tensioned, and this lies with the fixed voltage UZ in Line. The transformer 3 is designed here, for example, as an autotransformer.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL11397A DE965590C (en) | 1952-01-26 | 1952-01-26 | Device for speed control of a direct current shunt motor fed from the alternating current network via transformers and rectifiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL11397A DE965590C (en) | 1952-01-26 | 1952-01-26 | Device for speed control of a direct current shunt motor fed from the alternating current network via transformers and rectifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE965590C true DE965590C (en) | 1957-06-13 |
Family
ID=7258837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEL11397A Expired DE965590C (en) | 1952-01-26 | 1952-01-26 | Device for speed control of a direct current shunt motor fed from the alternating current network via transformers and rectifiers |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE965590C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR466226A (en) * | 1900-01-01 | |||
| DE478803C (en) * | 1925-09-02 | 1929-07-02 | Aeg | Control device for DC motors that are fed via discharge vessels with control grids |
| US2462249A (en) * | 1947-03-20 | 1949-02-22 | Ritter Co Inc | Electric motor control system |
-
1952
- 1952-01-26 DE DEL11397A patent/DE965590C/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR466226A (en) * | 1900-01-01 | |||
| DE478803C (en) * | 1925-09-02 | 1929-07-02 | Aeg | Control device for DC motors that are fed via discharge vessels with control grids |
| US2462249A (en) * | 1947-03-20 | 1949-02-22 | Ritter Co Inc | Electric motor control system |
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