PHASE ADVANCE METHOD IN MOTORS WITH PERMANENT MAGNETS PRESENTING INDUCED VOLTAGES WITH FLAT REGION

PHASE ADVANCE METHOD IN MOTORS WITH PERMANENT MAGNETS PRESENTING INDUCED VOLTAGES WITH FLAT REGION

The present invention refers to the use of phase advance in motors with non-ideal induced voltages, especially in motors with induced voltages that present a flat region, to avoid instability in the control, wherein the first step is to detect the passage of the voltage induced by the flat region of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: ANDRICH, Roberto
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Beschreibung
Zusammenfassung:The present invention refers to the use of phase advance in motors with non-ideal induced voltages, especially in motors with induced voltages that present a flat region, to avoid instability in the control, wherein the first step is to detect the passage of the voltage induced by the flat region of instability, and then apply a fixed increment in the phase advance in order to avoid the flat region. Detection can be done in two ways: by direct measurement of induced voltage; and measuring the extinguishing time of the freewheel current.