No abstract

In the comparative analysis of image characteristics of shadow-free and shaded area, an algorithm for shaded area, avoiding the area whose illumination is weak and tending to the area with strong light via looking for the strongest and weakest light area, is established, which can thereby improve the efficiency of power generation. The result demonstrates that the method can find the region with the strongest sunlight fast and accurately.

The comprehensive MPPT algorithm, which is combined with three approaches including the constant voltage tracking method (CVT), the perturbation and observation method (P&O), and the incremental node-voltage conductance method (INC), aims to study how to improve the solar energy utilization of the solar battery energy-saving control system of field monitoring equipment. To obtain the parameters needed for numerical simulation, solar power meter is used to measure light intensity curve within 30 seconds in spring. Then we establish the photovoltaic array simulation model and get the power tracking curve. Comparing with the curves based on the comprehensive MPPT algorithm with the mainstream MPPT algorithms, its proven that the time consumption of tracking MPP is shorter and that the efficiency of photovoltaic power generation is higher.