Quasi-ac, photovoltaic module for unfolder photovoltaic...

Details Quasi-ac, photovoltaic module for unfolder photovoltaic... Quasi-ac, photovoltaic module for unfolder photovoltaic...

H - Electricity

02

J

H02J 3/38 (2006.01) H02M 3/04 (2006.01) H02M 7/44 (2006.01)

Patent

CA 2678330

A photovoltaic (PV) energy system (100) includes a pulsed bus (102) defined by a non-zero average value voltage that is proportional to a rectified utility grid AC supply voltage. The PV energy system (100) also includes a plurality of PV modules (106), each PV module (106) including a bucking circuit (108) configured to convert a corresponding PV voltage into a pulsing current (112), wherein the pulsating bus (102) is configured to sum the pulsing currents (112) produced via the plurality of PV modules (106) such that a resultant pulsing current is injected into the pulsating bus (102) in phase with the non-zero average value voltage. A current unfolding circuit (104) is configured to control the amount of AC current injected into the utility grid in response to the resultant pulsing current.

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