Non-isolated solar photovoltaic power generation grid-connected inverter

The utility model discloses a non-isolated solar photovoltaic power generation grid-connected inverter. The non-isolated solar photovoltaic power generation grid-connected inverter comprises two paths of boosted circuits which are connected in parallel, a buffer circuit, an inverter circuit and a fi...

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Bibliographische Detailangaben
Hauptverfasser:	WEI LE, WEI CHENGCAI, CHEN YING, LI XIAODONG, LIN JIAYIN, CHEN GUANGHUI, QIN YAN, FENG YUJUAN, ZHENG CHUNQIANG, WU XUEZHEN, DING XIN, YAO KAIWU, QIU MIN
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 utility model discloses a non-isolated solar photovoltaic power generation grid-connected inverter. The non-isolated solar photovoltaic power generation grid-connected inverter comprises two paths of boosted circuits which are connected in parallel, a buffer circuit, an inverter circuit and a filter circuit, each boost circuit comprises a DC/DC converter, a power NMOS tube, an inductor, a fly-wheel diode and a peak absorption circuit, the input end of the DC/DC converter is coupled with the positive electrode of the photovoltaic panel, and the output end of the DC/DC converter is coupled with the grid electrode of the power NMOS tube and outputs a PWM signal; one end of the inductor is coupled with the positive electrode of the photovoltaic panel, and the other end of the inductor is respectively coupled with the drain electrode of the power NMOS tube and the positive electrode of the fly-wheel diode; the source electrode of the power NMOS tube is coupled with the negative electrode of the photovoltaic pa