Three-phase inverter and harmonic current suppression method thereof

The invention provides a three-phase inverter and a harmonic current suppression method thereof. The method comprises the following steps: acquiring an alternating current side current and a power grid side voltage of the three-phase inverter; error voltage compensation is carried out based on the a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GAO YU, ZHANG YUJIANG, ZHU GEJUN, WU FENG, HU RONGYUAN, LI JIANGUO, ZHANG YONG, WANG KAI, ZHANG FENG, YANG MEIJIA
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 CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	The invention provides a three-phase inverter and a harmonic current suppression method thereof. The method comprises the following steps: acquiring an alternating current side current and a power grid side voltage of the three-phase inverter; error voltage compensation is carried out based on the alternating current side current and the power grid side voltage, and alternating current side error reference voltage of the three-phase inverter is obtained; passive control is carried out based on the direct current side voltage uDC of the three-phase inverter, the alternating current side reference current of the three-phase inverter under the dq coordinate system, the alternating current side current of the three-phase inverter and the power grid side voltage, and the alternating current side reference voltage of the three-phase inverter is obtained; obtaining an alternating current side target voltage of the three-phase inverter based on the alternating current side error reference voltage and the alternating