BACKGROUND

Field

The present disclosure is directed towards a solar power system, and more particularly, towards optimizing efficiencies of solar power systems.

Background

Solar power systems harvest energy from photovoltaic (PV) panels or modules, which generate energy from photovoltaic cells. Typically, solar power systems are configured to collect energy from a number of photovoltaic panels by connecting a string of PV panels in a series connection. The output of a string of PV panels is measured, in part, by the voltage it produces, referred to as the PV string voltage.

Typically, solar panel systems are designed to operate within an electrical code, such as the National Electric Code (NEC). For example, a standard architecture of a PV string is governed by NEC, section 690.7”, “Maximum Voltage.” It reads “in a dc PV source circuit or output circuit, the maximum PV system voltage for that circuit shall be calculated as the sum of the rated open-circuit voltage of the series-connected PV modules corrected for the lowest expected ambient temperature.” This electrical code is very conservative in that if a solar power system is designed in accordance with it, then the string voltage is limited, which lowers efficiencies of the solar power system.

As described more fully below, the present disclosure sets for methods, circuits and systems to optimize efficiencies of a solar power system.

