ANALYSIS OF GLOBAL AND LOCAL MAXIMUM POWER POINTS IN PV ARRAYS UNDER PARTIAL SHADING CONDITION

IF 0.6 Q3 ENGINEERING, MULTIDISCIPLINARY
Bambang Mulyo Raharjo
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引用次数: 0

Abstract

Partial shading (PS) has a significant impact on the decrease in efficiency of photovoltaic (PV) array and performance of maximum power point tracking (MPPT) that must be addressed. We conduct an analysis and evaluation of local maximum power point (LMPP) in terms of quantity, and global maximum power point (GMPP) in terms of magnitude and diversity. Simulation is carried out using single diode ideal model and nine generic PS patterns that are specifically designed to bring up the substantial characteristics of the LMPP and GMPP and applied to series-parallel (SP) and total cross-tied (TCT) configurations. The SP configuration has LMPP with two, three, and four peaks, appearing three times each. The TCT configuration has two peaks that appear six times, three peaks that appear once, and four peaks that appear twice. The SP configuration experiences power losses ranging from 56% to 72%, while the TCT configuration has power losses ranging from 52% to 64%. The SP configuration generates a maximum voltage of 76.64 volts and a minimum of 39.20 volts, while the TCT configuration generates a maximum voltage of 77.62 volts and a minimum of 58.21 volts. With a smaller number of LMPP, a larger magnitude of GMPP parameters, and lower diversity, TCT exhibits better characteristics and performance compared to SP.
局部遮光条件下光伏阵列的全局和局部最大功率点分析
部分遮光(PS)对光伏(PV)阵列效率的降低和最大功率点跟踪(MPPT)的性能有着显著的影响,这是必须解决的问题。我们从数量上分析和评估了局部最大功率点(LMPP),从幅度和多样性上分析和评价了全局最大功率点。使用单二极管理想模型和九种通用PS模式进行了仿真,这些模式专门设计用于产生LMPP和GMPP的实质特性,并应用于串并联(SP)和全交叉连接(TCT)配置。SP配置具有LMPP,具有两个、三个和四个峰值,每个峰值出现三次。TCT配置有两个出现六次的峰值,三个出现一次的峰值和四个出现两次的峰值。SP配置的功率损耗范围从56%到72%,而TCT配置的功率损失范围从52%到64%。SP配置产生的最大电压为76.64伏,最小电压为39.20伏,而TCT配置产生的最高电压为77.62伏,最小值为58.21伏。与SP相比,具有较小数量的LMPP、较大幅度的GMPP参数和较低的分集,TCT表现出更好的特性和性能。
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来源期刊
Jurnal Teknologi-Sciences & Engineering
Jurnal Teknologi-Sciences & Engineering ENGINEERING, MULTIDISCIPLINARY-
CiteScore
1.30
自引率
0.00%
发文量
96
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