Study on Tracking and Control Algorithm of Maximum Power Point for Photovoltaic System

Shao Cui　Ding Bao　Song Zhenjiang　Song Lifang（School of Electrical Engineering and Automation，Harbin Institute of Technology，Harbin 150001，China）

 

Abstract The building integrated photovoltaic （BIPV） system and its features are described，and the the maximum power point tracking technology （MPPT）for AC -module BIPV system is studied. The P - U curves of photovoltaic modules in the BIPV system show multi-extremum features，and the authors put forward a improved algorithm of MPPT. The modeling and simulation based on the Matlab / Simulink software is established，and the simulation results indicate the feasibility of this algorithm.

Key words　BIPV system　AC-module MPPT　CVT　INC　Improved algorithm of MPPT

 

摘　要　介绍光伏建筑一体化（BIPV）系统及其特点，研究交流模块式 BIPV 系统最大功率点跟踪技术（MPPT ）。针对 BIPV 系统中光伏组件的 P - U 曲线呈现多极值特性，提出多极值条件下光伏组件最大功率点跟踪控制算法。在 Matlab / Simulink 下进行建模与仿真，仿真结果验证了此算法的可行性。

关键词　BIPV 系统　交流模块式　最大功率点跟踪 恒定电压法　电导增量法　改进 MPP T 算法