广东电力2016,Vol.29Issue(10):12-16,5.DOI:10.3969/j.issn.1007-290X.2016.10.003
基于改进滑模控制技术的光伏阵列最大功率跟踪控制研究
Maximum Power Point Tracking of Photovoltaic Array Based on Improved Sliding Mode Control Technology
摘要
Abstract
In order to rapidly and effectively track the maximum power point of photovoltaic array,this paper designs a kind of sliding mode control method based on exponential approach law. According to characteristic of the output maximum pow-er point,switching hyperplane of the system is designed and a sliding mode controller is used to collect system states from ex-ternal hyperplane to the hyperplane. For weakening fluttering of the system at the same time of its verging to sliding mode surface,a critical value near to the switching hyperplane is designed. It is able to well control setting for parameters of ap-proach law based on concept of exponential approach law. Simulating experiment indicates that this method is useful to rap-idly and correctly track the maximum power point of the system and well weaken fluttering at the time of sliding mode con-trol approaching to the sliding mode surface.关键词
光伏阵列/滑模控制/指数趋近律/最大功率点追踪Key words
photovoltaic array/sliding mode control/exponential approach law/maximum power point tracking (MPPT)分类
信息技术与安全科学引用本文复制引用
党克,陆雯雯,严干贵..基于改进滑模控制技术的光伏阵列最大功率跟踪控制研究[J].广东电力,2016,29(10):12-16,5.基金项目
国家自然科学基金项目(51277024) (51277024)