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Hybrid MPPT Technique PSO-P&O Applied to Photovoltaic Systems Under Uniform and Partial Shading Conditions
IEEE Latin America Transactions ( IF 1.3 ) Pub Date : 2021-07-07 , DOI: 10.1109/tla.2021.9477222
Samuel Figueiredo , Ranoyca Nayana Alencar Leao e Silva Aquino

The PV array must always operate at the Global Maximum Power Point (GMPP) in order to make the most of the energy generated. In this context, some classical techniques achieve this goal satisfactorily under uniform shading conditions. However, environmental conditions vary during the day and these methods fail to extract the highest power available under partial shading conditions. The present paper aims to propose a hybrid Maximum Power Point Tracking (MPPT) technique that uses Particle Swarm Optimization (PSO) and Perturb & Observe (P&O) methods, applied to photovoltaic systems under uniform and partial shading conditions. The photovoltaic system was modeled in the PSIM software. The proposed MPPT technique is compared with the classical P&O, standard PSO and a hybrid P&O-PSO techniques. The simulation results showed that the proposed hybrid algorithm can track GMPP under uniform and partial shading conditions and tracking time is 50% shorter than standard PSO technique. Furthermore, the proposed method manages to extract 0.3% more electricity from the photovoltaic system compared to the P&O-PSO hybrid

中文翻译:

混合MPPT技术PSO-P&O在均匀和部分遮光条件下应用于光伏系统

光伏阵列必须始终在全球最大功率点 (GMPP) 下运行,以充分利用产生的能量。在这种情况下,一些经典技术在均匀着色条件下令人满意地实现了这一目标。然而,白天的环境条件会发生变化,并且这些方法无法在部分阴影条件下提取可用的最高功率。本文旨在提出一种混合最大功率点跟踪 (MPPT) 技术,该技术使用粒子群优化 (PSO) 和扰动与观察 (P&O) 方法,应用于均匀和部分阴影条件下的光伏系统。光伏系统在 PSIM 软件中建模。将提出的 MPPT 技术与经典 P&O、标准 PSO 和混合 P&O-PSO 技术进行比较。仿真结果表明,所提出的混合算法可以在均匀和部分阴影条件下跟踪GMPP,跟踪时间比标准PSO技术短50%。此外,与 P&O-PSO 混合动力系统相比,所提出的方法设法从光伏系统中多提取 0.3% 的电力
更新日期:2021-07-09
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