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| One Method of Maximum Power Point Tracking (MPPT) for Photovoltaic System |
| Li Chenxia1, Yang Honggeng1, Wang Yuanchi2 |
| Shandong University of science and Technology, Qingdao,Shangdong 266510 |
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Abstract Maximum power point tracking (MPPT) can significantly increase conversion efficiency of photovoltaic (PV) cells. A fast maximum power point tracking (MPPT) algorithm is proposed in the paper. According to the derivative of power function expressed by voltage is zero at the maximum power point, getting the relation equation about Pmax and Umax, which is called maximum-power curve equation. The maximum power point is the intersecting point of the PV cells characteristic curve and the maximum-power curve. Searching the intersecting point with variable step on the two dimensional plane about power and voltage, finding the intersecting point means tracked the maximum power point. Simulation results validate that the proposed method can search the maximum power point of PV cells quickly and precisely, and eliminate the oscillation while operating at the maximum power point and improve the system stability.
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Published: 24 June 2014
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| Cite this article: |
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Li Chenxia,Yang Honggeng,Wang Yuanchi. One Method of Maximum Power Point Tracking (MPPT) for Photovoltaic System[J]. Electrical Engineering, 2014, 15(05): 26-30.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2014/V15/I05/26
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2014, Vol. 15 
