Photovoltaic grid-connected electrical energy conservation-type inverter

The utility model discloses a photovoltaic grid-connected electrical energy conservation-type inverter, which is used for connecting a photovoltaic assembly into the grid. The electrical energy conservation-type inverter comprises a rectifier circuit, a DC filter circuit, a DC step-up circuit, an in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DU ZHONGAN, WU HUYUE
Format:	Patent
Sprache:	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 photovoltaic grid-connected electrical energy conservation-type inverter, which is used for connecting a photovoltaic assembly into the grid. The electrical energy conservation-type inverter comprises a rectifier circuit, a DC filter circuit, a DC step-up circuit, an inverter circuit and an AC filter circuit, wherein the positive electrode of the photovoltaic assembly is connected onto the positive electrode of the rectifier circuit; the negative electrode of the photovoltaic assembly is connected onto the negative electrode of the rectifier circuit; and after output of the rectifier circuit sequentially passes through the DC filter circuit, the DC step-up circuit, the inverter circuit and the AC filter circuit, AC power is outputted. According to the electrical energy conservation-type inverter, DC power is firstly optimized and then inverted, happening of reactive voltage flicker can be effectively eliminated, power of an effective load can be stabilized at 98%, efficiency is maximized, and operation is safe and persistent.