| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a photovoltaic (PV) energy system. <P>SOLUTION: The 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 of which includes 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 pulsing currents (112) generated via the plurality of PV modules (106) so that a resultant pulsing current is injected into the pulsating bus (102) in a phase with the non-zero average value voltage. A current unfolding circuit (104) is configured to control the amount of an alternate current injected into the utility grid in response to the resultant pulsing current. <P>COPYRIGHT: (C)2010,JPO&INPIT |
