System and method for controlling non-isolated bi-directional power converter

Embodiments are disclosed that include power converter systems and methods that include an N-phase power converter stage having an alternating current (AC) side and a direct current (DC) side, where Ngt; 1. The system and method further includes an N-phase LC filter including one or more capacitors,...

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Bibliographische Detailangaben
Hauptverfasser:	JANS, MICHAEL, EUL, WOLF-MICHAEL, ZHOU LIWEI, PREDL MICHAEL
Format:	Patent
Sprache:	chi ; eng
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:	Embodiments are disclosed that include power converter systems and methods that include an N-phase power converter stage having an alternating current (AC) side and a direct current (DC) side, where Ngt; 1. The system and method further includes an N-phase LC filter including one or more capacitors, where respective one or more neutral points of the one or more capacitors are electrically connected to a DC negative terminal of the DC source. The control system drives the power switching elements of the N-phase power converter stages to convert the received power and output the converted power. The control system drives the power switching elements using a variable frequency soft switching of at least 20 kHz frequency. The power converter may have bi-directional operation to operate in a traction mode to drive the electric machine or in a charging mode to charge the DC source. 公开了包括功率转换器系统和方法的实施方式，该功率转换器系统和方法包括具有交流(AC)侧和直流(DC)侧的N相功率转换器级，其中N>1。该系统和方法进一步包括N相LC滤波器，该N相LC滤波器包括一个或多个电容器，其中一个或多个电容器的相应的一个或多个中性点电连接到DC源的