PFC FAST DYNAMIC RESPONSE CONTROL METHOD AND SYSTEM

The present application relates to a PFC fast dynamic response control method and system. The control method includes: constructing an output voltage controller, tracking and correcting the output voltage of the PFC circuit by the output voltage controller; constructing a load current feed-forward c...

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Bibliographische Detailangaben
Hauptverfasser:	ZHAO, Kaihong, GUO, Shuibao, WANG, Yiqiang
Format:	Patent
Sprache:	eng ; fre ; 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:	The present application relates to a PFC fast dynamic response control method and system. The control method includes: constructing an output voltage controller, tracking and correcting the output voltage of the PFC circuit by the output voltage controller; constructing a load current feed-forward controller, by using the load current feed-forward controller, estimating the feed-forward peak current and accumulating the estimated feed-forward peak current with an output of the output voltage controller to determine the input current reference peak value; performing current loop control based on the input current reference peak value to determine a switch signal of a power electronic switch device in the PFC circuit, and controlling the power electronic switch device to be turned on and off based on the switch signal. Compared with the related art, the present application has advantages of fast dynamic response, small input current harmonic component and the like.