中国电机工程学报
中國電機工程學報
중국전궤공정학보
ZHONGGUO DIANJI GONGCHENG XUEBAO
2011年
23期
121-128
,共8页
田琦%赵争鸣%邓夷%袁立强%贺凡波
田琦%趙爭鳴%鄧夷%袁立彊%賀凡波
전기%조쟁명%산이%원립강%하범파
光伏组件%灵敏度%反向特性%热斑
光伏組件%靈敏度%反嚮特性%熱斑
광복조건%령민도%반향특성%열반
photovoltaic (PV) module%parameter sensitivity%reverse characteristics%hot-spot
以MATLAB软件为仿真平台,建立了光伏电池反向Bishop子电路模型,不同光照和不同温度下光伏电池电气特性的仿真和实验结果对比证明了该模型的有效性。分析了光伏组件模型各个参数对光伏电池电气特性的影响,对模型的参数提取和实际光伏阵列设计具有指导意义。大面积光伏阵列可能会出现热斑效应,利用光伏电池反向模型,分析了热斑效应形成原因、形成条件以及旁路二极管对热斑效应的进行了仿真分析,为并联旁路二极管拓扑结构的选择提供了依据。此外,仿真分析了实际商用光伏阵列在遮挡情况下所出现的多波峰特性,验证了旁路二极管对光伏阵列的保护效果。
以MATLAB軟件為倣真平檯,建立瞭光伏電池反嚮Bishop子電路模型,不同光照和不同溫度下光伏電池電氣特性的倣真和實驗結果對比證明瞭該模型的有效性。分析瞭光伏組件模型各箇參數對光伏電池電氣特性的影響,對模型的參數提取和實際光伏陣列設計具有指導意義。大麵積光伏陣列可能會齣現熱斑效應,利用光伏電池反嚮模型,分析瞭熱斑效應形成原因、形成條件以及徬路二極管對熱斑效應的進行瞭倣真分析,為併聯徬路二極管拓撲結構的選擇提供瞭依據。此外,倣真分析瞭實際商用光伏陣列在遮擋情況下所齣現的多波峰特性,驗證瞭徬路二極管對光伏陣列的保護效果。
이MATLAB연건위방진평태,건립료광복전지반향Bishop자전로모형,불동광조화불동온도하광복전지전기특성적방진화실험결과대비증명료해모형적유효성。분석료광복조건모형각개삼수대광복전지전기특성적영향,대모형적삼수제취화실제광복진렬설계구유지도의의。대면적광복진렬가능회출현열반효응,이용광복전지반향모형,분석료열반효응형성원인、형성조건이급방로이겁관대열반효응적진행료방진분석,위병련방로이겁관탁복결구적선택제공료의거。차외,방진분석료실제상용광복진렬재차당정황하소출현적다파봉특성,험증료방로이겁관대광복진렬적보호효과。
The Bishop reverse sub-circuit model of photovoltaic cell was built up in the simulation platform of MATLAB. The accuracy of the model under different insolation and temperature was verified by the comparison between the simulated and experimental results. The influence of the parameters in the model to the electrical characteristics of PV module was analyzed, offering guidance to the parameter extraction and PV array designing. Hot-spot effect might happen to mass PV array. The reason and condition of the formation of hot pot effect were analyzed with the reverse model of photovoltaic (PV) cell. The inhibition to the hot-spot effect by both overlap and non-overlap bypass diode was simulated, offering an accordance for the choice of the topologic structure of paralleling bypass diode. Besides, multi-peak characteristics of commercial PV array when it was shadowed was simulated, and the protection effect of bypass diode to the PV array was verified.