Abstract：The output power of photovoltaic (PV) array varies with the changes of the environment and the load. Maximum power tracking control is used to take full advantage of the photovoltaic array. The variable universe fuzzy control method is proposed to implement maximum power tracking control. In order to improve the tracking accuracy and to guarantee the quick response, the universe shrinking factor is used to change the input fuzzy variable universe according to the tracking error. A comparison study is performed for the perturb and observe (P&O) method, the basic fuzzy control and the variable universe fuzzy control. The simulation and experimental results show that the proposed method can obtain a faster tracking speed, a higher tracking accuracy and a larger power output. The proposed method is suitable for PV array maximum power tracking control.
任海鹏, 郭鑫, 杨彧, 李洁. 光伏阵列最大功率跟踪变论域模糊控制[J]. 电工技术学报, 2013, 28(8): 13-19.
Ren Haipeng, Guo Xin, Yang Yu, Li Jie. Maximum Power Point Tracking of Photovoltaic Array Using Variable Universe Fuzzy Controller. Transactions of China Electrotechnical Society, 2013, 28(8): 13-19.
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2013, Vol. 28 
