DE416090C - Self-excited direct current machine with strongly variable magnetic flux - Google Patents

Self-excited direct current machine with strongly variable magnetic flux

Info

Publication number
DE416090C
DE416090C DEP47510D DEP0047510D DE416090C DE 416090 C DE416090 C DE 416090C DE P47510 D DEP47510 D DE P47510D DE P0047510 D DEP0047510 D DE P0047510D DE 416090 C DE416090 C DE 416090C
Authority
DE
Germany
Prior art keywords
magnetic flux
self
variable magnetic
direct current
air gaps
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
Application number
DEP47510D
Other languages
German (de)
Inventor
Dipl-Ing Erich Deubner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
POEGE ELEK CITAETS AKT GES
Original Assignee
POEGE ELEK CITAETS AKT GES
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by POEGE ELEK CITAETS AKT GES filed Critical POEGE ELEK CITAETS AKT GES
Priority to DEP47510D priority Critical patent/DE416090C/en
Application granted granted Critical
Publication of DE416090C publication Critical patent/DE416090C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/40—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits
    • H02K23/42—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits having split poles, i.e. zones for varying reluctance by gaps in poles or by poles with different spacing of the air gap

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Description

Selbsterregte Gleichstrommaschine mit stark veränderlichem Magnetfluß. Bei selbsterregten Gleichstromdynamos für in weiten Grenzen veränderliche Spannung, allgemein bei selbsterregten Dynamos für stark veränderlichen magnetischen Fluß, muß Vorsorge getroffen werden, daß die Spannung auch beim niedrigsten Fluß stabil bleibt. Die Spannungscharakteristik muß deshalb derart gestaltet werden, daß innerhalb des Regelbereiches Proportionalität zwischen Ankerspannung und Erregerstrom vermieden wird. Dies ist der Fall, wenn mindestens ein Teil des. magnetischenKreises als magnetischer Isthmus ausgebildet und so bemessen ist, daß er bereits durch den niedrigsten für die Reglung erforderlichen Fluß gesättigt wird. Damit hierbei die Durchflutung des magnetischen Kreises bei höherem Fluß nicht unzulässig vergrößert wird, muß dem Isthmus, wie bereits bekannt, ein magnetischer Nebenschluß in Form eines Luftweges parallel geschaltet werden, welcher bei steigendem Fluß den Isthmus entlastet. Es ist zweckmäßig, Isthmus und Entlastungsnebenschluß im Pol unterzubringen.Self-excited DC machine with strongly variable magnetic flux. With self-excited DC dynamos for voltage that can be varied within wide limits, generally with self-excited dynamos for strongly variable magnetic flux, Care must be taken that the voltage is stable even at the lowest flux remain. The voltage characteristic must therefore be designed so that within of the control range proportionality between armature voltage and excitation current avoided will. This is the case when at least part of the magnetic circuit is considered magnetic Isthmus is formed and so dimensioned that it is already through the lowest for the flow required for regulation is saturated. So that the flooding of the magnetic circuit is not impermissibly enlarged at higher flux, must dem Isthmus, as already known, a magnetic shunt in the form of an airway are connected in parallel, which with increasing flow the isthmus relieved. It is advisable to accommodate the isthmus and relief shunt in the pole.

Bei dem Gegenstand der ,Erfindung ist die Anordnung der Isthmen und Luftwege so getroffen, daß der Polfluß bei Änderung seines Betrages in dem zwischen zwei Spalten liegenden Isthmusteil auch seine Richtung ändert. Dadurch ist es möglich, den oben aufgestellten Forderungen: Krümmung der Spannungscharakteristik bei schwachem Fluß, geringe Durchflutungszunahme bei starkem Fluß, in hohem Maße zu entsprechen.The subject of the invention is the arrangement of the isthms and Airways taken so that the pole flux when changing its amount in the between part of the isthmus lying two columns also changes its direction. This makes it possible the requirements set out above: curvature of the voltage characteristic in the case of weak River, small increase in flow rate with strong flow, to correspond to a high degree.

Abb. i und 2 zeigen zwei Ausführungsbeispiele; und zwar das eine Mal seitlich offene Schlitze, das andere Mal geschlossene Schlitze. Abb. 3 zeigt den mittleren Kraftlinienverlauf bei schwachem Fluß, wobei die Luftspalte praktisch keinen Fluß führen, Abb. q. den Verlauf der Kraftlinien bei starkem Fluß, wobei auf die Luftspalte ein beträchtlicher Anteil des Gesamtflusses entfällt.Figs. I and 2 show two embodiments; and that once Slits open on the sides, the other time closed slits. Fig. 3 shows the mean line of force with weak flow, the air gaps practical lead no river, fig. q. the course of the lines of force in a strong flow, where the air gaps account for a considerable proportion of the total flow.

Claims (2)

PATENT-ANSPRÜcHE: i. Selbsterregte Gleichstrommaschine mit stark veränderlichem Magnetfluß, deren Feldmagnetpole gleichbleibende magnetische Widerstände (Luftspalte quer zur Polachse) in Parallelschaltung mit veränderlichen magnetischen Widerständen (Isthmen) aufweisen, dadurch gekennzeichnet, daß zu beiden Seiten der Polachse Luftspalte -derart angeordnet sind, daß bei wachsendem Magnetfluß in dem zwischen den Luftspalten liegenden Isthmusteil eine Richtungsänderung des Magnetflusses .eintritt, durch welche die Weglänge der Kraftlinien in diesem gesättigten Isthmusteil verkürzt wird. PATENT CLAIMS: i. Self-excited DC machine with highly variable Magnetic flux, the field magnetic poles of which have constant magnetic resistances (air gaps across the pole axis) in parallel with variable magnetic resistances (Isthmuses), characterized in that air gaps on both sides of the polar axis -are arranged in such a way that with increasing magnetic flux in the one between the air gaps lying isthmus part a change of direction of the magnetic flux .ein occurs, through which the path length of the lines of force in this saturated part of the isthmus is shortened. 2. Ausführungsform nach Anspruch i, dadurch gekennzeichnet, daß die Spalte breiter als nötig hergestellt werden und die Einstellung der erforderlichen Spaltweite durch Eisenblechbeilagen, deren Lage durch Schichten aus magnetisch schlecht leitendem Material gesichert wird, erfolgt. 2. Embodiment according to claim i, characterized in that the gaps are made wider than necessary and the required gap width is set by sheet iron inserts, the position of which is secured by layers of poorly magnetically conductive material.
DEP47510D 1924-02-16 1924-02-16 Self-excited direct current machine with strongly variable magnetic flux Expired DE416090C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP47510D DE416090C (en) 1924-02-16 1924-02-16 Self-excited direct current machine with strongly variable magnetic flux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP47510D DE416090C (en) 1924-02-16 1924-02-16 Self-excited direct current machine with strongly variable magnetic flux

Publications (1)

Publication Number Publication Date
DE416090C true DE416090C (en) 1925-07-16

Family

ID=7382446

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP47510D Expired DE416090C (en) 1924-02-16 1924-02-16 Self-excited direct current machine with strongly variable magnetic flux

Country Status (1)

Country Link
DE (1) DE416090C (en)

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