Hybrid inverter power control system for PV string, battery, grid and back-up loads

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United States of America Patent

PATENT NO 9923379
SERIAL NO

15203770

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Abstract

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A string inverter for use with a photovoltaic array includes at least one string-level DC input channel for receiving DC power from the photovoltaic array, and at least one input-output channel for connecting the string inverter to a battery pack. The string inverter also includes a DC to AC inverter having an AC output, and a switch configured to control a flow of power through the string inverter. When the switch is in a first state, AC power can flow from the string inverter to a load side of a customer utility meter and one or more back-up loads, in a second state, power can flow from the load side of a customer utility meter to the one or more back-up loads bypassing the string inverter, and in a third state, all circuits coupled to the output of the string inverter are electrically disconnected from the string inverter.

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Patent Owner(s)

Patent OwnerAddress
SOLARCITY CORPORATION3055 CLEARVIEW WAY SAN MATEO CA 94402

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Carlson, Eric Daniel San Mateo, US 24 73
Lutkus, Andrew Russell Martinez, US 5 4
Narla, Sandeep San Jose, US 21 19

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