OVER-VOLTAGE PROTECTION FOR SAFE OPERATION OF STRINGS INCLUDING A NUMBER OF SOLAR PANELS BEYOND A RATED MAXIMUM NUMBER

원문 (중국어)

A system and method for safe operation of a tracking solar array field during extreme and non-extreme operating conditions. A plurality of strings of tracking solar panels are electrically connected to a combiner box that produces a combined variable operating DC voltage at an input of an inverter. A total number of the solar panels in a string exceeds a rated maximum number of solar panels to maintain variable operating DC voltage below a rated maximum DC voltage during extreme operating conditions that cause the variable DC voltage to exceed the rated maximum DC voltage. If extreme operating conditions are imminent, the method reduces the variable DC voltage to below the rated maximum DC voltage by switching in a shunt load at the input of the inverter, or switching in a shunt load at the output of the combiner box; or tilting operating tracking solar panels to a solar stow tilt position.