Method and system to convert direct current (DC) to alternating current (AC) using a photovoltaic inverter

A method to increase photovoltaic (PV) inverter (10) efficiency by disabling a DC-DC Boost includes: applying a DC power generated by a PV array (12) to the PV inverter; boosting (26, 118) the DC power from the PV array from a predetermined voltage level to a predetermine DC link voltage, wherein th...

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Bibliographische Detailangaben
1. Verfasser:	LEONARD, JOHN ANDREW
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 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:	A method to increase photovoltaic (PV) inverter (10) efficiency by disabling a DC-DC Boost includes: applying a DC power generated by a PV array (12) to the PV inverter; boosting (26, 118) the DC power from the PV array from a predetermined voltage level to a predetermine DC link voltage, wherein the PV array is regulated by the boosting to output a voltage at the predetermined voltage level; converting (122) the boosted DC power to AC power, and disabling (150) the boost of the power generated by the PV array after the array has a predetermined voltage level at least as great as the DC link voltage.