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Get More Power from Your Low Power Inverters

Technology Benefits

Peak efficiency of 96 percentEliminate the need of electrolytic capacitorsNew MPPT method for resonant converterNew control based soft switching method with no additional cost or componentSolves the light load efficiency problem

Technology Application

BatteriesResidential solar systemsCommercial building solar systemsPV power plantsFuel cells

Detailed Technology Description

Micro-inverter use has been limited to small scale, single phase residential and commercial PV installations. By extending the micro-inverter concept to large size PV installation where three-phase AC connection is used, advantages such as individual variable frequency maximum power point tracking (MPPT) to determine a switching frequency for a resonant power converter, redundant system architecture, ease of installation, removal of unreliable electrolytic capacitors, and less DC distribution losses can be gained. To make the idea of PV farm architecture based on three-phase micro-inverters feasible, a high efficiency, low cost, high reliability, high compact micro-inverter was designed and built. Invented three-phase micro-inverter can be used for any PV power plant, from small scale to proof applications for commercial building to large scale PV power plants.

Country/Region

USA

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