DE4137007A1 - Electric induction motor drive for washing machine - has special construction of motor windings based on edge frequency at which max. voltage is produced - Google Patents

Electric induction motor drive for washing machine - has special construction of motor windings based on edge frequency at which max. voltage is produced

Info

Publication number
DE4137007A1
DE4137007A1 DE4137007A DE4137007A DE4137007A1 DE 4137007 A1 DE4137007 A1 DE 4137007A1 DE 4137007 A DE4137007 A DE 4137007A DE 4137007 A DE4137007 A DE 4137007A DE 4137007 A1 DE4137007 A1 DE 4137007A1
Authority
DE
Germany
Prior art keywords
max
frequency
edge frequency
voltage
special construction
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.)
Withdrawn
Application number
DE4137007A
Other languages
German (de)
Inventor
Heinz Schaeffersmann
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.)
ELEKTRONIK REGELAUTOMATIK
Original Assignee
ELEKTRONIK REGELAUTOMATIK
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
Priority claimed from DE4119902A external-priority patent/DE4119902A1/en
Application filed by ELEKTRONIK REGELAUTOMATIK filed Critical ELEKTRONIK REGELAUTOMATIK
Priority to DE4137007A priority Critical patent/DE4137007A1/en
Priority to SE9201761A priority patent/SE9201761L/en
Priority to BE9200554A priority patent/BE1006848A3/en
Priority to US07/899,784 priority patent/US5378952A/en
Priority to JP4181645A priority patent/JPH05276793A/en
Publication of DE4137007A1 publication Critical patent/DE4137007A1/en
Withdrawn legal-status Critical Current

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
    • H02K17/12—Asynchronous induction motors for multi-phase current
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/304—Arrangements or adaptations of electric motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

The induction motor drive uses a calculated edge frequency at which a max. voltage is exhibited, for optimisation of the motor winding parameters. A model is used to ensure min. energy consumption, with special construction of the motor windings. The max. frequency and the edge frequency exhibit a ratio which corresponds to the reciprocal ratio between loading torque in a lower rev range and loading torque in an upper rev range, allowing the edge frequency to be calculated. ADVANTAGE - Allows power output to be multiplied relative to power level for mains frequency. ..

Description

Die Erfindung betrifft eine Ergänzung der Gesamtkombination bezüglich der Optimierung von Motoren nach dem Hauptpatent.The invention relates to an addition to the overall combination regarding the optimization of engines according to the main patent.

Entsprechend dem Merkmal des Patentanspruches läßt sich die Optimierung durch entsprechende Motorberechnung verbessern.According to the feature of the claim, the Improve optimization by appropriate engine calculation.

Die Eckfrequenz ist die Frequenz, bei der die Maximalspannung erreicht wird und von wo bei weiterer Steigerung der Frequenz (durch den Frequenzumrichter) keine Steigerung der Spannung mehr möglich (bzw. gewollt) ist.The cutoff frequency is the frequency at which the maximum voltage is reached and from where the frequency increases further (by the frequency converter) no increase in voltage is more possible (or wanted).

Die Eckfrequenz ist ein Rechenwert für die Berechnung der Motorwicklung.The basic frequency is a calculated value for the calculation of the Motor winding.

Der Stand der Technik geht von Motoren mit Normfrequenzen aus, die den Versorgungsnetzen entsprechen. Gelegentlich wird die Y/Δ Umschaltmöglichkeit der Wicklung genutzt, um eine Leistungs- und Drehzahlsteigerung von 73% () zu erreichen.The state of the art is based on motors with standard frequencies that correspond to the supply networks. Occasionally the Y / Δ switchover option of the winding is used to a performance and speed increase of 73% () too to reach.

Das Hauptpatent geht in den vorgeschlagenen Kombinationsmerk­ malen von speziell konstruierten und gefertigten Motoren aus.The main patent goes into the proposed combination feature paint from specially designed and manufactured motors.

Es ist die Aufgabe des Zusatzpatentes, für diese Motoren die Berechnung der Eckfrequenz anzugeben.It is the job of the additional patent for these engines specify the calculation of the corner frequency.

Die nach den im Patentanspruch angegebenen Werten berechneten Motoren sind auf minimalen Energiebezug und maximale Modell­ ausnutzung optimiert, besonders wenn die Einschaltzeiten der einzelnen Bereiche und deren thermische Belastung des Motors berücksichtigt sind. Es lassen sich Leistungsstei­ gerungen bis zum Vielfachen der Grundleistung des Modells bei Netzfrequenz erreichen.The calculated according to the values specified in the claim Motors are on minimum energy consumption and maximum model Utilization optimized, especially when the switch-on times of the individual areas and their thermal stress Motors are taken into account. There can be performance gains struggled to multiply the basic performance of the model reach at mains frequency.

Claims (1)

Konstruktionsgrundlage des Motors der Antriebseinheit für eine Wäschebehandlungsmaschine nach Patent . . . (Aktenzeichen P 41 19 902.2-32), dadurch gekenn­ zeichnet, daß die Maximalfrequenz zur Eckfrequenz sich so verhält, wie das reziproke Verhältnis von Belastungs­ drehmoment im unteren Drehzahlbereich zu dem Belastungsmoment im oberen Drehzahlbereich.Design basis of the motor of the drive unit for a laundry treatment machine according to a patent. . . (File number P 41 19 902.2-32), characterized in that the maximum frequency to the corner frequency behaves as the reciprocal ratio of the loading torque in the lower speed range to the loading torque in the upper speed range.
DE4137007A 1991-06-17 1991-11-11 Electric induction motor drive for washing machine - has special construction of motor windings based on edge frequency at which max. voltage is produced Withdrawn DE4137007A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE4137007A DE4137007A1 (en) 1991-06-17 1991-11-11 Electric induction motor drive for washing machine - has special construction of motor windings based on edge frequency at which max. voltage is produced
SE9201761A SE9201761L (en) 1991-06-17 1992-06-09 PROCEDURE MOVE SPEED CONTROL OF INDUCTION ENGINES
BE9200554A BE1006848A3 (en) 1991-06-17 1992-06-16 Electrical control device for a machine.
US07/899,784 US5378952A (en) 1991-06-17 1992-06-17 Machine drive system and method
JP4181645A JPH05276793A (en) 1991-06-17 1992-06-17 Drive unit for asynchronous motor of a washing machine or the like, and revolution number control method for induction motor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4119902A DE4119902A1 (en) 1991-06-17 1991-06-17 Drive unit for washing machines etc. - has three=phase asynchronous motor with at least 2 slots per pole and phase
DE4137007A DE4137007A1 (en) 1991-06-17 1991-11-11 Electric induction motor drive for washing machine - has special construction of motor windings based on edge frequency at which max. voltage is produced

Publications (1)

Publication Number Publication Date
DE4137007A1 true DE4137007A1 (en) 1993-05-13

Family

ID=25904597

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4137007A Withdrawn DE4137007A1 (en) 1991-06-17 1991-11-11 Electric induction motor drive for washing machine - has special construction of motor windings based on edge frequency at which max. voltage is produced

Country Status (1)

Country Link
DE (1) DE4137007A1 (en)

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