<p>When PV arrays are operated under constant climatic conditions, the MPPT techniques allow the PV system to generate maximum output power. During partial shading or complex partial shading conditions, conventional MPPTs and MPPT-based optimization are alone not enough to find the global peak, as several peaks occur. A hybrid MPPT can solve the aforementioned issues, but oscillations around GMPP, tracking efficiency, and convergence time need to be addressed. To solve this, a hybrid MPPT that combines a water cycle algorithm and an incremental conductance algorithm (WCO-INC) has been developed for a PV system that is operated for standalone applications. The proposed work uses a three-phase interleaved boost converter as an interface between the photovoltaic array and the load. The developed PV system was tested under rapidly changing irradiance and temperature using the MATLAB/Simulink tool. The proposed work provides better tracking efficiency, reduced oscillations, and quick convergence time when compared with WCA, INC, PO, and WCO-PO MPPT techniques. The WCO-INC technique has better tracking efficiency (99.76%) and convergence time (0.90&#xa0;ms) with 1217.35&#xa0;W as maximum power generated under constant irradiance, and in complex partial shaded conditions (CPSC), it has 98.61% tracking efficiency, and the convergence time is 1.40&#xa0;ms with 586.56&#xa0;W as maximum power generated. Whereas in the INC algorithm, tracking efficiency is 78.58% in CPSC, 2.5&#xa0;ms as convergence time with 467.40&#xa0;W as maximum power generated.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

A Novel Hybrid MPPT Technique for a PV System Operated Under Partial Shading Conditions with Three Phase Interleaved Boost Converter

  • K. Krishnaram,
  • M. Rajakumaran,
  • S. Senthilkumar,
  • S. P. Mangaiyarkarasi,
  • R. Gandhi Raj

摘要

When PV arrays are operated under constant climatic conditions, the MPPT techniques allow the PV system to generate maximum output power. During partial shading or complex partial shading conditions, conventional MPPTs and MPPT-based optimization are alone not enough to find the global peak, as several peaks occur. A hybrid MPPT can solve the aforementioned issues, but oscillations around GMPP, tracking efficiency, and convergence time need to be addressed. To solve this, a hybrid MPPT that combines a water cycle algorithm and an incremental conductance algorithm (WCO-INC) has been developed for a PV system that is operated for standalone applications. The proposed work uses a three-phase interleaved boost converter as an interface between the photovoltaic array and the load. The developed PV system was tested under rapidly changing irradiance and temperature using the MATLAB/Simulink tool. The proposed work provides better tracking efficiency, reduced oscillations, and quick convergence time when compared with WCA, INC, PO, and WCO-PO MPPT techniques. The WCO-INC technique has better tracking efficiency (99.76%) and convergence time (0.90 ms) with 1217.35 W as maximum power generated under constant irradiance, and in complex partial shaded conditions (CPSC), it has 98.61% tracking efficiency, and the convergence time is 1.40 ms with 586.56 W as maximum power generated. Whereas in the INC algorithm, tracking efficiency is 78.58% in CPSC, 2.5 ms as convergence time with 467.40 W as maximum power generated.