A stand-alone PV system based on golden section search method

For the wide range of input and high utilization requirements of photovoltaic power generation system, the research achieved maximum energy capture through a variable step iteration golden section control. A dynamic simulation model was established based on engineering software, the results of which shows the feasibility of the system meanwhile stability of the algorithm. Energy conversion hardware circuit with floating-point digital signal processor TMS320F28035 was designed, as well the implementation in software based on golden section control. The experimental results verify the effectiveness of the algorithm. The system converged at new maximum power point in 30ms after the condition changed, which showed a fast convergence time. The high efficiency system has a strong robustness. The implementation of the algorithm can provide a reference for engineering practice and application of photovoltaic power generation system.