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EP0043973A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Rotating-field machine drive consisting of an inverter-controlled rotating-field machine, and a control system for an inverter connected to two alternating voltage integrators and a model computer circuit

Assignee: Siemens AG
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Filing: 1981-06-29
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Granted: —
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Expires: 2001-06-29
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Abstract

Abstract Translated from German Die aus Ständertrom und Ständerspannung gebildeten Komponenten des EMK-Vektors werden mittels Wechselspannungsintergratoren (IG, IG' - "Spannungsmodell") integriert. Die Ausgangsgrößen (Ψα, Ψβ) legen die Komponenten des Maschinen-Flußvektors fest. Der Umrichtersteuerung werden die parallele und senkrechte Komponente des Ständerstromes bezüglich dieses Flußvektors vorgegeben. Die Wechselspannungsintergratoren enthalten Nullpunktregler im Rückführungskreis, denen die Differenz aus Maschinenflußkomponenten (Ψα, Ψβ) und entsprechenden Modellflußkomponenten (Ψαo, Ψβo) vorgegeben werden. Die Modellflußkomponenten werden in einer Rechenmodellschaltung ("Strommodell") aus Ständerstrom, Magnetisierungsstrom und Laüferstellung berechnet. Dadurch wird - insbesondere bei kleinen Frequenzen - der Frequenzgang des Spannungsmodells unterdrückt. The components of the EMF vector formed from the stator current and stator voltage are integrated by means of AC voltage integrators (IG, IG '- "voltage model"). The output variables (Ψα, Ψβ) determine the components of the machine flow vector. The converter control is given the parallel and vertical components of the stator current with respect to this flux vector. The AC voltage integrators contain zero point controllers in the feedback loop, to which the difference between machine flow components (Ψα, Ψβ) and corresponding model flow components (Ψαo, Ψβo) are specified. The model flow components are calculated in a computational model circuit ("current model") from the stator current, magnetizing current and rotor production. This suppresses the frequency response of the voltage model, especially at low frequencies.

Inventors

  • 👤 Felix Dr. Blaschke
  • 👤 Theodor Dipl.-Ing. Salzmann

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 06:50
CPC Classifications
H; H02; H02P; H02P21/00; H02P21/06; H02P21/10; H02P21/14; H02P21/141

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE1806769A1 Cited
DE2131780A1 Cited
EP0007552A1 Cited
EP0007550A1 Cited

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