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作 者:Chengyang Huang Kazutaka Itako Fakeaki Mori Qiang Ge
机构地区:[1]Department of Electrical and Electronic Engineering, Kanagawa Institute of Technology, Kanagawa 243-0292, Japan [2]Department of Energy and Power Engineering, Yangzhou University, Yangzhou 225127, China
出 处:《Journal of Energy and Power Engineering》2015年第5期486-492,共7页能源与动力工程(美国大卫英文)
摘 要:The conventional P & O (perturb-and-observe) method, which is the most widely used as MPPT (maximum power point tracking) control, has the problem of low efficiency and unstable operation when solar radiation changes drastically. Aiming at this problem, this paper improves the conventional P & O method to reduce the bad effect of solar radiation by shortening the sampling interval of PV module's output power while keeping the operating period unchanged. Experiments are conducted to study efficiency gains of improved method when solar radiation changes drastically. The result shows that, by this method, the efficiency of MPPT control can be increased 17% in average when PV module simulator is used and 20% at maximum when actual PV module is used, compared with the conventional P & O method.
关 键 词:PV generation system MPPT solar radiation change improvement of efficiency.
分 类 号:TM615[电气工程—电力系统及自动化] S512.1[农业科学—作物学]
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