DE911289C - Arrangement with coupled AC motors fed from the same network - Google Patents
Arrangement with coupled AC motors fed from the same networkInfo
- Publication number
- DE911289C DE911289C DES3577D DES0003577D DE911289C DE 911289 C DE911289 C DE 911289C DE S3577 D DES3577 D DE S3577D DE S0003577 D DES0003577 D DE S0003577D DE 911289 C DE911289 C DE 911289C
- Authority
- DE
- Germany
- Prior art keywords
- motors
- arrangement
- coupled
- same network
- coupling transformer
- 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
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/34—Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter
- H02K17/36—Cascade arrangement of an asynchronous motor with another dynamo-electric motor or converter with another asynchronous induction motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ac-Ac Conversion (AREA)
Description
Bei vom gleichen Netz gespeisten, mechanisch oder elektrisch gekuppelten Wechselstrommotoren, insbesondere Asynchronmotoren, mit Kurzschlußläufer macht die Einhaltung einer gewünschten, beispielsweise gleichmäßigen Lastverteilung auf die einzelnen Motoren Schwierigkeiten. Diese werden gemäß der Erfindung in einfacher Weise dadurch behoben, daß in Abhängigkeit vom Ständerstrom jedes einzelnen Motors die Spannung im Ständer der anderen Motoren und damit deren Schlupf und Leistungsabgabe über einen Kopplungstransformator beeinflußt wird.If they are fed by the same network, mechanically or electrically coupled AC motors, especially asynchronous motors, with squirrel cage rotors make the Compliance with a desired, for example even load distribution on the individual engines difficulties. These become easier according to the invention Way resolved that depending on the stator current of each individual motor the voltage in the stator of the other motors and thus their slip and power output is influenced by a coupling transformer.
In der Zeichnung ist die Erfindung beispielsweise dargestellt. Hierbei sind Asynchronmotoren I und 2 mechanisch gekuppelt. Die Ständerströme der beiden Motoren werden über Wicklungen 3 bzw. 4 geführt, die auf dem Eisenkörper 5 eines Kopplungstransformators angeordnet sind. Dabei ist der genannte Transformator in der Weise ausgelegt, daß beim Vorhandensein der hier gewünschten gleichmäßigen Lastverteilung auf die beiden Motoren I und 2 keine gegenseitige Beeinflussung der beiden. Ständerstromkreise erfolgt, mithin beide Motoren gleiche Ständerspannung erhalten. Wäre jedoch beispielsweise die Leistungsabgabe des Motors I größer als die des Motors 2, so ist auch dessen Ständerstrom größer. Der größere Strom in der Wicklung 3 des Transformators erzeugt einen magnetischen Fluß im Eisenkörper, welcher in der Wicklung 4 für den Motor 2 eine zusätzliche Spannung induziert. Die höhere Spannung an dem Motor 2 hat eine Verkleinerung des Schlupfs, also Vergrößerung der Leistung zur Folge. Damit ist eine Entlastung des Motors I zustande gekommen, und es stellt sich eine gleichmäßige Lastverteilung ein. In der Zeichnung sind nur die Leiter und Wicklungen einer Phase dargestellt. Es ist selbstverständlich, daß der Kopplungstransformator die gleiche Phasenzahl wie der Motor besitzen muß.In the drawing, the invention is shown as an example. Here Asynchronous motors I and 2 are mechanically coupled. The stator currents of the two Motors are guided over windings 3 and 4, which are on the iron body 5 of a Coupling transformer are arranged. The said transformer is in designed in such a way that the presence of the uniform load distribution desired here on the two motors I and 2 there is no mutual influence of the two. Stator circuits takes place, so both motors receive the same stator voltage. But would be for example the power output of engine I is greater than that of engine 2, so is its Stator current greater. The greater current is generated in winding 3 of the transformer a magnetic flux in the iron body, which in the winding 4 for the motor 2 induces an additional voltage. The higher voltage on the motor 2 has a Reduction of the slip, thus increasing the performance as a result. So is a discharge of the engine I came about, and it turns out a steady Load sharing a. Only the conductors and windings of one phase are shown in the drawing shown. It goes without saying that the coupling transformer is the same Number of phases as the motor must have.
Der Kopplungstransformator ist zweckmäßig einstellbar. Das kann beispielsweise durch Verwendung von Wicklungen 3 und 4 mit Anzapfungen 7 bzw. 8, durch Änderungen des Eisenweges oder der Sättigung des Eisenkörpers 5 erreicht werden. Werden Asynchronmotoren verwendet, dann kann das Übersetzungsverhältnis des Kopplungstransformators und damit die Art der Lastverteilung gegebenenfalls zusätzlich durch Verkettungen der einzelnen Phasenwicklungen auf dem Transformator z. B. durch Anwendung einer Zickzackschaltung geändert werden.The coupling transformer is expediently adjustable. For example by using windings 3 and 4 with taps 7 and 8 respectively, by making changes the iron path or the saturation of the iron body 5 can be achieved. Are asynchronous motors used, then the transformation ratio of the coupling transformer and thus the type of load distribution, if necessary, additionally by concatenating the individual phase windings on the transformer z. B. by using a zigzag circuit to be changed.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES3577D DE911289C (en) | 1942-04-22 | 1942-04-22 | Arrangement with coupled AC motors fed from the same network |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES3577D DE911289C (en) | 1942-04-22 | 1942-04-22 | Arrangement with coupled AC motors fed from the same network |
Publications (1)
Publication Number | Publication Date |
---|---|
DE911289C true DE911289C (en) | 1954-05-13 |
Family
ID=7470236
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES3577D Expired DE911289C (en) | 1942-04-22 | 1942-04-22 | Arrangement with coupled AC motors fed from the same network |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE911289C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1206063B (en) * | 1957-07-23 | 1965-12-02 | Siemens Ag | Multi-motor drive with the same or proportionally equal load distribution |
-
1942
- 1942-04-22 DE DES3577D patent/DE911289C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1206063B (en) * | 1957-07-23 | 1965-12-02 | Siemens Ag | Multi-motor drive with the same or proportionally equal load distribution |
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