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HYBRID INVERTER POWER CONTROL SYSTEM FOR PV STRING, BATTERY, GRID AND BACK-UP LOADS
HYBRID INVERTER POWER CONTROL SYSTEM FOR PV STRING, BATTERY, GRID AND BACK-UP LOADS
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机译:光伏逆变器,电池,电网和后备负载的混合逆变器功率控制系统
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摘要
A string inverter for use with a photovoltaic array includes a string-level DC input channel for receiving DC power from a photovoltaic array. The input channel performs channel-level maximum power point tracking. An input-output channel connects the string inverter to a battery pack. A DC to DC buck-boost circuit between the at least one DC input channel and the at least one input-output channel prevents more than a predetermined amount of DC voltage from reaching the battery pack. A DC to AC inverter circuit having an AC output serving as an output of the string inverter. A revenue grade power meter is configured to measure the AC output of the string inverter.
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