电源技术2017，Vol.41Issue(9)：1353-1355,3.
一种改进的新型MPPT控制策略
New and improved MPPT control strategy
徐旭 1杨向宇1
作者信息
- 1. 华南理工大学电力学院,广东广州510641
- 折叠
摘要
Abstract
Photovoltaic generic model was constructed,and the P-U,I-U characteristic was got with Matlab.Perturbation and observation (P&O) algorithm and incremental conductance (INC) algorithm were the maxiumum power point tracking MPPT in photovoltaic systems.But the step size of P&O algorithm was particularly important.The slope of the P-U curve changed during tracking,and the slope near the maximum power point was close to zero with quite different from the other position.So a new variable step size P&O algorithm which according to the range of slope of P-U curve to change the step size was proposed.Finally,this algorithm was implemented with Matlab/Simulink S-function,thereby obtaining simulation results.Verify that this improved MPPT control algorithm can be implemented,and has good dynamic performance and steady state performance,and maximum power point fast tracking is achieved.The proposed algorithm to some extent made up for the shortcomings of traditional P&O algorithm,and debugging was simple and easy to implement.关键词
光伏建模/最大功率跟踪/变步长/扰动观测法/控制Key words
PV cell modeling/MPPT/variable step size/P&O algorithm/control分类
信息技术与安全科学引用本文复制引用
徐旭,杨向宇..一种改进的新型MPPT控制策略[J].电源技术,2017,41(9):1353-1355,3.
