DEVICE TO OBTAIN AN APPROXIMATE TRAPEZOIDAL VOLTAGE AT THE ALTERNATING OUTPUT OF A CYCLOCONVERTER

DEVICE TO OBTAIN AN APPROXIMATE TRAPEZOIDAL VOLTAGE AT THE ALTERNATING OUTPUT OF A CYCLOCONVERTER

1. A device (7, 8, 9) for generating approximately trapezoidal alternating voltages at three-phase outputs (1, 2, 3) of a direct converter (4, 5, 6), where a sinusoidal input voltage lambda is input in order to drive the converter gates which act upon a three phase output (1), and a control set (7)...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: SALZMANN, THEODOR
Format: Patent
Sprache:eng ; ger
Schlagworte:
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Beschreibung
Zusammenfassung:1. A device (7, 8, 9) for generating approximately trapezoidal alternating voltages at three-phase outputs (1, 2, 3) of a direct converter (4, 5, 6), where a sinusoidal input voltage lambda is input in order to drive the converter gates which act upon a three phase output (1), and a control set (7) generates the ignition pulses with a control angle which leads to the approximately trapezoidal alternating voltage, characterised in that the sinusoidal input voltage (Ust1 ) is directly connected to a control set (7) which is known per se and whose control angle (alpha 1 ) is linearly proportional (alpha 1 = k.Ust1 ) to the control voltage (Ust1 ) (Fig. 2).