DE102013012773A1 - Electromotor has electrical conductors separately and electrically connected with magnetic poles that are provided with constant flux direction, are electrically commutated at stator or rotor and are separated with air gap - Google Patents
Electromotor has electrical conductors separately and electrically connected with magnetic poles that are provided with constant flux direction, are electrically commutated at stator or rotor and are separated with air gap Download PDFInfo
- Publication number
- DE102013012773A1 DE102013012773A1 DE201310012773 DE102013012773A DE102013012773A1 DE 102013012773 A1 DE102013012773 A1 DE 102013012773A1 DE 201310012773 DE201310012773 DE 201310012773 DE 102013012773 A DE102013012773 A DE 102013012773A DE 102013012773 A1 DE102013012773 A1 DE 102013012773A1
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- Germany
- Prior art keywords
- magnetic poles
- pole
- poles
- electric motor
- rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Elektromotor mit ungleicher Polzahl an Stator und Rotor und seine Steuerung.The invention relates to an electric motor with unequal number of poles on the stator and rotor and its control.
In
In
Beim erfindungsgemäßen Motor aber dient der Aufbau und die spezielle Ansteuerung dieses neuartigen Aufbaus nicht nur der Verminderung der Betriebsspannung, sondern auch der Erhöhung des Motordrehmoments.In the engine according to the invention, however, the structure and the special control of this novel structure not only serves to reduce the operating voltage, but also to increase the engine torque.
Damit wird erreicht, dass eine Erhöhung Motordrehmoments gegenüber konventionellen Elektromotoren bei gleichzeitiger Erniedrigung der benötigten elektrischen Leistung möglich wirdThis ensures that an increase in engine torque compared to conventional electric motors while lowering the required electrical power is possible
Die grundsätzliche Problematik von Elektromotoren mit Magnetpolen an Stator und Läufer liegt im Induktionsgesetz für die elektromagnetischen Pole. Für einen elektromagnetischen Pol gilt die Spannungsgleichung einer Spule
Für Elektromotoren mit Magnetpolen an Stator und Rotor bleibt die Polfläche A konstant. Daher kann man Gleichung Gl. 1 ändern in:
Man erkennt, daß die Zeitspanne dt zur Umpolung eines Poles entscheidend ist für die Höhe des Spannungsbedarfs. Halbiert man dt, verdoppelt also die Frequenz, so verdoppelt man die Spannung uq It can be seen that the time span dt for pole reversal is decisive for the magnitude of the voltage requirement. Halving dt, ie doubling the frequency doubles the voltage u q
Die Spannungsgleichung der Spule soll anhand der Transformatorenhauptgleichung erläutert werden. (vgl.
Beim Transformatoren wird die Transformatorenhauptgleichung so hergeleitet:
Der Augenblickswert des Magnetflusses zum Zeitpunk t wird:
- B'
- = Induktion, Maximalwert
- AFe
- = Eisenquerschnitt
- ω
- = Winkelgeschwindigkeit
- t
- = Zeitpunktswert
The instantaneous value of the magnetic flux at the time t is:
- B '
- = Induction, maximum value
- A Fe
- = Iron cross section
- ω
- = Angular velocity
- t
- = Time value
Der Augenblickswert der Spannung wird daher:
Mit N = Wicklungszahl und daraus:
daraus wird dann der Effektivwert der Spannung
this then becomes the rms value of the voltage
Wie wir erkennen ist der Effektivwert (Gl. 5) ein Durchschnittswert. Bei einem Motor wirken aber die Zeitpunktwerte während einer Frequenzschwingung mit (Gl. 4)As we can see, the RMS value (equation 5) is an average value. In the case of a motor, however, the instantaneous values during a frequency oscillation act (equation 4)
Die Erfindung und ihre Steuerung wird anhand der
Man betrachte zunächst nun in
Wie in
Die effektive Zugkraft am Luftspalt ist dann (Anzahl der Polwechselspalte)·0,622·B' = 8·0,622·B' = = 4,976·B' ≈ 5·B'The effective tensile force at the air gap is then (number of pole change gaps) x 0.622 x B '= 8 x 0.622 x B' = 4.976 x B 'x 5 x B'
In
Damit ist die mittlere Zugkraft unter einem Läuferpol (0,7065 + 0,5785 + 0,617)/3 = 0,634. Bei vier Läuferpolen also 4·0,634 = 2,536Thus, the mean tensile force under a rotor pole is (0.7065 + 0.5785 + 0.617) / 3 = 0.634. With four rotor poles, therefore, 4 · 0.634 = 2.536
Insgesamt hat der erfindungsgemäße Motor die Zugkraft (3,81 + 2,536)·B' = 6,346·B'. Beim erfindungsgemäßen Motor erhöht sich damit die Drehkraft auf das 6,346/5 = 1,269 um 26,9%.Overall, the motor according to the invention has the tensile force (3.81 + 2.536) · B '= 6.346 · B'. In the engine according to the invention, the torque increases to 6.466 / 5 = 1.269 by 26.9%.
Nun wollen wir die Leistungsaufnahme der beiden Motoren bei identischen B' = μ0·μr·H berechnen.Now we want to calculate the power consumption of the two motors with identical B '= μ 0 · μ r · H.
Für eine kurze Spule gilt die Formel H0 = I0·N/(l2 + d2)0,5 For a short coil, the formula H 0 = I 0 * N / (I 2 + d 2 ) 0.5
Beim alten Motor ist die Polfläche das Vierfache der Polfläche des erfindungsgemäßen Motors.In the old engine, the pole face is four times the pole face of the motor according to the invention.
Der Durchmesser dalt = 2·derf.The diameter d alt = 2 · d erf .
Die Polfäche des Altmotors sei 1600 = r2 alt die des erfindungsgemäßen Motors also 400 = r2 erf The Polfäche of the old engine is 1600 = r 2 old that of the engine according to the invention therefore 400 = r 2 erf
Dann wird dalt = 80, derf = 40.Then d old = 80, d erf = 40.
Die Länge l = 10 sei bei beiden Spulen identisch.
Bei identischem I0 in den Wicklungen folgt mit Hilfe der Transformatorenhauptgleichung für einen Pol:
Bei 4 Polen ist also
Für einen Pol des erfindungsgemäßen Motors wird die Transformatorenhauptgleichung wird
Bei 4 Wicklungssträngen wird die elektrische Gesamtleistung:
Dadurch wird
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 60307466 T2 [0002] DE 60307466 T2 [0002]
- DE 102012005149 A1 [0003] DE 102012005149 A1 [0003]
Zitierte Nicht-PatentliteraturCited non-patent literature
- Böhm; elektrische Maschinen; Vogel Verlag 4. Aufl. 1996 [0006] Boehm; electrical machines; Vogel Verlag 4th ed. 1996 [0006]
- W. BIENECK; Elektro T – Grundlagen der Elektrotechnik; Holland + Josenhans, Stuttgart 1996 [0009] W. BIENECK; Elektro T - Fundamentals of Electrical Engineering; Holland + Josenhans, Stuttgart 1996 [0009]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201310012773 DE102013012773A1 (en) | 2012-08-03 | 2013-07-31 | Electromotor has electrical conductors separately and electrically connected with magnetic poles that are provided with constant flux direction, are electrically commutated at stator or rotor and are separated with air gap |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012015368.6 | 2012-08-03 | ||
DE102012015368 | 2012-08-03 | ||
DE102012024325.1 | 2012-12-12 | ||
DE102012024325 | 2012-12-12 | ||
DE201310012773 DE102013012773A1 (en) | 2012-08-03 | 2013-07-31 | Electromotor has electrical conductors separately and electrically connected with magnetic poles that are provided with constant flux direction, are electrically commutated at stator or rotor and are separated with air gap |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102013012773A1 true DE102013012773A1 (en) | 2014-02-06 |
Family
ID=49944098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201310012773 Withdrawn DE102013012773A1 (en) | 2012-08-03 | 2013-07-31 | Electromotor has electrical conductors separately and electrically connected with magnetic poles that are provided with constant flux direction, are electrically commutated at stator or rotor and are separated with air gap |
Country Status (1)
Country | Link |
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DE (1) | DE102013012773A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60307466T2 (en) | 2002-05-31 | 2007-10-04 | Politecnico Di Milano | Concentrated winding synchronous electric motor and method of developing the same |
DE102012005149A1 (en) | 2011-10-26 | 2013-05-02 | Peter Graf Von Ingelheim | Electric motor i.e. large motor, has rotor magnets moved by mutual induction of windings while voltage requirement of motor is reduced and/or increasing rotational force of motor during counter supply of power by using permanent magnets |
-
2013
- 2013-07-31 DE DE201310012773 patent/DE102013012773A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60307466T2 (en) | 2002-05-31 | 2007-10-04 | Politecnico Di Milano | Concentrated winding synchronous electric motor and method of developing the same |
DE102012005149A1 (en) | 2011-10-26 | 2013-05-02 | Peter Graf Von Ingelheim | Electric motor i.e. large motor, has rotor magnets moved by mutual induction of windings while voltage requirement of motor is reduced and/or increasing rotational force of motor during counter supply of power by using permanent magnets |
Non-Patent Citations (2)
Title |
---|
Böhm; elektrische Maschinen; Vogel Verlag 4. Aufl. 1996 |
W. BIENECK; Elektro T - Grundlagen der Elektrotechnik; Holland + Josenhans, Stuttgart 1996 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R086 | Non-binding declaration of licensing interest | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |