2MW generator testing device dragged by low-power inverter

The utility model relates to the generator testing device, in particular to a 2MW generator testing device dragged by a low-power inverter. In the technical proposal, a generator to be tested is dragged by an identical frequency motor, an inverter is used as a power supply of the identical frequency...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WANG WEIGUO, ZHAN YAQIN, LIANG JUNSHENG, ZHANG JINGYUAN, HU QINGXI, ZHANG DAQING, YAN MINGPENG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The utility model relates to the generator testing device, in particular to a 2MW generator testing device dragged by a low-power inverter. In the technical proposal, a generator to be tested is dragged by an identical frequency motor, an inverter is used as a power supply of the identical frequency motor, and another motor is arranged to be connected with the identical frequency motor in parallel. With the parallel connection of the motor and the identical frequency motor, the utility model increases the output power on the output shaft of the inverter, and reduces the output current of the 1.5 MW inverter. The two motors have a certain difference in rotating speeds thereof during the test, and the rotor power is controlled by the current transformer in the generator, thereby greatly reducing the control power. When the low-frequency inverter drags the high-frequency generator to be tested, the advantages of the motor enterprise are utilized to reduce the investment, the output current of the inverter is com