电源技术2017,Vol.41Issue(5):770-773,4.
基于SVR与扰动观察法的光伏阵列多峰值MPPT研究
MPPT study of PV array with multi-peak based on combination of perturbation method and SVR
摘要
Abstract
When PV module is under local shadow or non-uniform illumination conditions,the output characteristics of PV arrays will change.P-U characteristic curve presents multiple peaks;traditional MPPT algorithm based on single peak P-U curve may fail;it is difficult to accurately track the global maximum power point.To address this drawback,a MPPT fusion algorithm based on combination of perturbation method and SVM was put forward.The global optimization and high generalization performance characteristics of support vector machine combining with easy control and realization of perturbation method were used to achieve maximum power point tracking.The simulation results show that in real external conditions,such as light,temperature and illumination mutation,compared with traditional perturbation method,the new fusion algorithm can not be trapped in local peak,and the system can quickly and accurately track the global maximum power point.关键词
光伏阵列/局部阴影/最大功率点跟踪/支持向量机回归Key words
photovoltaic (PV) array/partial shadow/maximum power point tracking (MPPT)/support vector machine regression (SVR)分类
信息技术与安全科学引用本文复制引用
万晓凤,戴雅晨,刘琦,杜利平,胡伟..基于SVR与扰动观察法的光伏阵列多峰值MPPT研究[J].电源技术,2017,41(5):770-773,4.基金项目
国家国际科技合作专项(2014DFG72240) (2014DFG72240)
国家科技支撑计划(2013BAA01B01) (2013BAA01B01)
江西省科技支撑计划(2013BBE50102) (2013BBE50102)
江西省科技落地计划(KJLD14006) (KJLD14006)