Abstract: The present disclosure relates to a power conditioning system comprising: a converter including a plurality of inverters formed in the form of power electronics building blocks (PEBBs); and a system control unit for: controlling the plurality of inverters such that the plurality of inverters are driven independently of each other; receiving status information from each of the plurality of PEBBs and detecting a specific PEBB requiring maintenance according to the received status information; when the specific PEBB is detected, deactivating an inverter of the specific PEBB separately from the remaining PEBBs; and controlling the driving of the remaining PEBBs such that the power conditioning system continuously operates while the specific PEBB is inactive.

Abstract: The present disclosure relates to a grid-tied photovoltaic power generation system, and particularly, to a grid-tied photovoltaic power generation system including a power maintaining unit configured to maintain power of a controller during an corresponding operation time of a photovoltaic system when power supply is stopped due to a fault generated in a grid, whereby power may be stably supplied to the controller and power of the controller may be maintained, designing of the photovoltaic system and setting of a connection to the grid may be simply and easily performed, a corresponding operation of the photovoltaic system may be controlled regarding the fault generated in the grid, and the fault generated in the grid may be accurately, appropriately, and effectively handled.

Abstract: The present disclosure relates to a grid-tied photovoltaic power generation system, and particularly, to a grid-tied photovoltaic power generation system including a power maintaining unit configured to maintain power of a controller during an corresponding operation time of a photovoltaic system when power supply is stopped due to a fault generated in a grid, whereby power may be stably supplied to the controller and power of the controller may be maintained, designing of the photovoltaic system and setting of a connection to the grid may be simply and easily performed, a corresponding operation of the photovoltaic system may be controlled regarding the fault generated in the grid, and the fault generated in the grid may be accurately, appropriately, and effectively handled.