SELECTIVE POWER POINT TRACKING

摘要

A controller receives electrical power at an input from one or more energy capture device and outputs electrical power to one or more external loads. The controller adjusts, according to a first algorithm, an electrical property affecting an apparent load resistance applied across the input. The controller determines, while the first algorithm is running, whether a first amount of power received by the input is satisfactory. If it is, the controller continues using the first algorithm. If it is not, the controller switches to a algorithm. The first and second maximum algorithms may be optimized for different environmental conditions, such as different amounts of sunlight incident on the one or more energy capture devices.

主权项

1. A controller characterized by an operating point and comprising:
an input configured to receive electrical power from one or more energy capture devices; an output configured to provide electrical power to an external load; one or more processors; memory; and one or more programs, the one or more programs stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for:
adjusting, according to a first algorithm, an electrical property affecting an apparent load resistance applied across the input;determining, while the first algorithm is running, whether a first amount of power received by the input is satisfactory;
in accordance with a determination that the first amount of power is satisfactory, continuing to adjust the electrical property according to the first algorithm; andin accordance with a determination that the first amount of power received is not satisfactory, performing a method comprising (i) switching to a second algorithm, and (ii) adjusting the electrical property according to the second algorithm,wherein the first algorithm is different from the second algorithm.