CAJ | 학술논문

光伏阵列在局部阴影条件下，其输出 P-V 特性曲线将呈现多个功率峰值。为了追踪到全局最大功率点，对局部阴影条件下光伏阵列输出 P-V 特性曲线进行了深入分析，对各功率极值点对应电压和被遮挡的光伏组件个数及光照强度之间的关系进行了研究。得出了相邻功率极值点对应电压之差的最小值为0．8Uoc（Uoc 为单个光伏组件的开路电压）等规律，在这些规律的基础上，提出了一种新的最大功率点跟踪方法，能够快速、准确地跟踪到全局最大功率点。应用 MATLAB 软件搭建了仿真模型，仿真结果验证了所提出方法的正确性和有效性。
광복진렬재국부음영조건하，기수출 P-V 특성곡선장정현다개공솔봉치。위료추종도전국최대공솔점，대국부음영조건하광복진렬수출 P-V 특성곡선진행료심입분석，대각공솔겁치점대응전압화피차당적광복조건개수급광조강도지간적관계진행료연구。득출료상린공솔겁치점대응전압지차적최소치위0．8Uoc（Uoc 위단개광복조건적개로전압）등규률，재저사규률적기출상，제출료일충신적최대공솔점근종방법，능구쾌속、준학지근종도전국최대공솔점。응용 MATLAB 연건탑건료방진모형，방진결과험증료소제출방법적정학성화유효성。
Under partially shaded conditions,the output P-V characteristic curve of the PV array will show multiple power peaks.In order to track the global maximum power point,we analyze in depth the output P-V characteristic curve,and study the relationship between the voltage of each power peak and the number of shaded PV modules and the light intensity.We become aware of the rule that the minimum voltage difference between adjacent power peaks is 0.8 Uoc (Uoc is the open circuit voltage of a single PV module).Based on such rules,we propose a new MPPT method for quick accurate track of the GMPP.By using MATLAB,we establish a simulation model,and the simulation results verify the correctness and effectiveness of the proposed method.