基于模糊PI调节Boost电路的光伏系统最大功率点跟踪控制被引量：24

MPPT of photovoltaic system with Boost circuit based on fuzzy PI control

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摘要详细分析了光伏电池及光伏阵列的工作特性,建立了光伏电池的等效电路及数学模型,根据实际的光伏电池参数计算得出相应数学模型的拟合参数,并根据拟合参数建立了光伏阵列的MATLAB模型。利用Boost电路提升光伏阵列的电压,采用改进的导纳增量法实现光伏阵列的最大功率点跟踪(MPPT)功能,并利用模糊PI控制算法修改控制参数以提高系统的速度。通过对电路的分析,得出了其小信号状态空间模型,利用模型仿真可知电路是一个稳定的系统。实验结果验证了系统工作稳定、可靠、快速。 The working characteristics of PV（PhotoVoltaic） cell array are analyzed,and its mathematical model and equivalent circuit are established. The fitting parameters of the model are calculated according to the parameters of actual PV cell,based on which a MATLAB model is built. It is studied to adopt Boost converter for stepping up PV output voltage and an enhanced incremental conductance method is implemented for MPPT（Maximum Power Point Tracking）. Fuzzy PI controller is proposed to adjust the control parameters for better dynamic performance. The small-signal state space model of system is deduced by circuit analysis,which is proved a stable system by model simulation. Experimental results show the proposed system is stable,reliable and fast.

作者尤鋆郑建勇

机构地区东南大学电气工程学院苏州市电气设备与自动化重点实验室

出处《电力自动化设备》 EI CSCD 北大核心 2012年第6期94-98,共5页 Electric Power Automation Equipment

基金国家高技术研究发展计划(863计划)资助项目(2008-AA052421)~~

关键词光伏电池 BOOST电路最大功率点跟踪模糊控制 photovohaic cells Boost circuit MPPT fuzzy control

分类号 TM46 [电气工程—电器] TM914.4 [电气工程—电力电子与电力传动]

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