一种迭代黄金分割法的独立光伏系统  

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

作　　者：马睿[1] 皇甫宜耿[1] 李玉忍[1] 吴宇[2] 

机构地区：[1]西北工业大学自动化学院,陕西西安710129 [2]重庆大学电气工程学院,重庆400044

出　　处：《电机与控制学报》2016年第1期81-87,共7页Electric Machines and Control

基　　金：教育部博士点新教师基金(20126102120050);陕西省国际科技合作重点项目计划(20121203202758)

摘　　要：针对光伏发电系统的宽范围输入及高利用率要求,采用变步长迭代黄金分割法实现最大能量捕获控制。首先,在工程软件环境下对光伏系统进行动态仿真,仿真结果表明系统可行性及算法的稳定性。在此基础上,设计了以浮点型数字信号处理器TMS320F28035为控制芯片的能量转换硬件电路,并完成了黄金分割算法的软件实现。实验结果验证了算法的有效性,系统在环境变化时30ms即可收敛到新的最大功率点,跟踪速度快,同时具有鲁棒性强和效率高的特点,算法的实现为工程实践和光伏发电系统推广应用提供了一种可工程化的寻优控制算法参考。For the wide range of input and high utilization requirements of photovoltaic power generation system,the research achieved maximum energy capture througha variable step iteration golden section control. A dynamic simulation model was established based onengineering 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 theimplementation 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 30 ms after the condition changed,which showed a fast convergence time. The high efficiency system has astrong robustness. The implementation of the algorithm can provide a reference for engineering practice and application of photovoltaic power generation system.

关 键 词：光伏发电系统 最大功率点跟踪 黄金分割法 快速性 鲁棒性 

分 类 号：TM615[电气工程—电力系统及自动化]