电力系统及其自动化学报2017，Vol.29Issue(3)：104-109,6.DOI:10.3969/j.issn.1003-8930.2017.03.017
改进型扰动观察法在光伏MPPT中的研究
Application of Improved Perturbation and Observation Method to Photovoltaic MPPT
荣德生 1刘凤1
作者信息
- 1. 辽宁工程技术大学电气与控制工程学院,葫芦岛125105
- 折叠
摘要
Abstract
In order to solve the problems of traditional perturbation and observation method,such as low steady-state accuracy,poor response speed and high possibility of misjudgment,an improved variable step perturbation and observation method is proposed based on hysteresis comparison.The photovohaic cells are studied and the principle of maximum power point tracking (MPPT) with BOOST converter is discussed.The simulation model of MPPT is established in Matlab/Simulink,and the feasibility of the proposed method is verified.DSP (with chip TMS320F28335) was used in the experiment.The proposed method can quickly track the maximum power point,and it has good starting characteristics,which effectively eliminates the misjudgment and the oscillation in the vicinity of maximum power point.关键词
升压变换器/滞环比较/变步长扰动观察法/最大功率点跟踪/光伏Key words
boost converter/hysteresis comparison/variable step perturbation and observation method/maximum power point tracking (MPPT)/photovoltaic分类
信息技术与安全科学引用本文复制引用
荣德生,刘凤..改进型扰动观察法在光伏MPPT中的研究[J].电力系统及其自动化学报,2017,29(3):104-109,6.
