Large scale energy storage system enabling balanced control of inverters
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United States of America Patent
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Jul 5, 2016
Grant Date -
Oct 22, 2015
app pub date -
Mar 23, 2015
filing date -
Apr 21, 2014
priority date (Note) -
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Abstract
There is disclosed a large scale energy storage system enabling balanced control of inverters, the large scale energy storage system including an inverter controller comprising a PWM generation circuit configured to generate a reference PWM signal and a first O/E converter configured to convert the reference PWM signal transmitted from the PWM generation circuit into an optical signal and to output the optical signal, and a plurality of PCS inverters configured to output a grid voltage, each of the PCS inverters comprising a second O/E converter embedded therein to convert the PWM signal and the optical signal output from the inverter controller into an optical signal and a plurality of inverter modules.
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