2003-134667 is referenced by 89 patents.

PROBLEM TO BE SOLVED: To provide a photovoltaic power generation device capable of MPPT control over all solar cell panels even if power generation characteristics varies among the solar cell panels.SOLUTION: There are provided a plurality of blocks of solar cell panels, a junction box wherein the output of each block of solar cell panels is separately converted into a DC voltage, to provide a common prescribed voltage which is collected, and a power conditioner which inversely converts the DC output collected in the junction box into an AC power, so as to perform linkage operation with the power system. In DC voltage conversion, a step-up chopper is follow-up controlled so that the output of each block of solar cell panels comes to be a maximum power point. The power conditioner comprises an inverter which inversely converts the DC output of the junction box into an AC power of such voltage and frequency as to link with the power system, and a system linkage protecting function which releases the linkage if an abnormal current or voltage occurs during linkage operation for protection.

Title
Photovoltaic power generation device
Application Number
2001-319568
Publication Number
2003-134667
Application Date
October 17, 2001
Publication Date
May 9, 2003
Inventor
Toyama Koji
Otake Hiroyuki
Assignee
Mitsubishi Heavy
IPC
H01L 31/04
G05F 01/67
H02J 03/38