CAJ | 학술논문

大型并网光伏电站已成为我国太阳能利用的重要形式。作为其基本组成单元，光伏阵列在各类气象条件下的I-U特性对研究大型光伏电站的并网运行特性以及光伏电站的控制算法具有重要意义。该文分析带旁路二极管的光伏组件运行状态，在此基础上给出光伏阵列的隐互补问题模型，并提出基于效用函数的光伏阵列I-U特性求解算法。算例仿真结果表明所提模型和算法具有计算精确度高、计算速度快、收敛性好等优点，适合于任意阴影条件下的大型光伏阵列建模仿真分析。
대형병망광복전참이성위아국태양능이용적중요형식。작위기기본조성단원，광복진렬재각류기상조건하적I-U특성대연구대형광복전참적병망운행특성이급광복전참적공제산법구유중요의의。해문분석대방로이겁관적광복조건운행상태，재차기출상급출광복진렬적은호보문제모형，병제출기우효용함수적광복진렬I-U특성구해산법。산례방진결과표명소제모형화산법구유계산정학도고、계산속도쾌、수렴성호등우점，괄합우임의음영조건하적대형광복진렬건모방진분석。
Large-scale grid-connected photovoltaic (PV) power stations have become the most important form of solar energy utilization of China. As the basic unit of a photovoltaic station, the I-U characteristic of PV arrays under all kinds of weather conditions is one of the most important issues for studying grid-connected PV station operation characteristics and its control algorithms. This paper analyzed the PV module operating status with bypass diode. On this basis, the implicit complementarity model of photovoltaic arrays was given with the corresponding algorithm which was based on the merit function algorithm. Simulation results show that the proposed model and algorithm have such advantages as high efficiency and accuracy, which are suitable for large PV station modeling, analysis and simulation under all kinds of shadow conditions.