The Webb Law Firm
Grid-connected inverter and method for filtering AC output thereof
Disclosed is a grid-connected inverter and a method for filtering AC output thereof. The grid-connected inverter includes an AC output filter which includes two or more switchable filtering modules, with the power capacity of each filtering module corresponding to a different output power of the grid-connected inverter; a monitoring module which is used to perform realtime monitoring on voltage and current outputted by the grid-connected inverter; and a control circuit which is used to calculate an output power grade of the grid-connected inverter according to the voltage and the current monitored by the monitoring module and control switching to the filtering module having a corresponding power capacity according to the power grade, the power grade being selected from a plurality of power grades which are divided according to power capacities of the filtering modules.
TBEA XI'AN ELECTRIC TECHNOLOGY CO., LTD. TBEA SUNOASIS CO., LTD.
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H02J H02M Y02E H02J H02M
additional inventional additional additional inventional
Xintao Weizeng Shaohua
Zhang Liu Ruan