Research on MPPT Algorithm Based on Mixed Strategy

MATEC Web of Conferences

关键词: PV array;    hybrid strategy;    fixed step;    progressive approximation method;    maximum power point;   

DOI  :  10.1051/matecconf/201713900162

来源: DOAJ

【 摘 要 】

Based on the mathematical model of PV array and its output characteristics, a hybrid control strategy combining fixed step method and variable coefficient approximation method is proposed. The method is followed by a fixed step in the search of the maximum power point. When the slope of the PU curve changes for the first time, the search interval is fixed in an initial step, and then the search is gradually approximated to maximum power point in the section. The method is analyzed theoretically and modeled in Matlab / Simulink environment, and compared with the variable step perturbation observation method. The simulation results show that the proposed method can quickly and accurately track the maximum power point under the standard condition and the sudden change of light intensity, and has faster tracking speed.

【 授权许可】

Unknown