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引用次数: 1
摘要
本文提出了一种新的最大功率点跟踪算法。当日照变化较快时,采用P&O (Perturb and Observe)算法将PV(光伏)阵列工作点调整到最大功率点(MPP)附近,实现快速跟踪;此外,INC(增量电导)算法和模糊控制器通过减少MPP周围的振荡和低估,跳过了P&O算法的缺点。此外,为了提高控制精度,利用Matlab/Simulink仿真验证了所提算法的有效性,仿真结果表明,所提算法能够快速跟踪MPP,有效降低MPP周围的振荡,提高光伏板的能量转换效率。
A proposed algorithm MPPT (Maximum Power Point Tracking) is proposed in this paper. When the insolation change rapidly, the P&O (Perturb and Observe) algorithm is used to adjust the operating point of the PV (Photovoltaic) array close to the MPP (Maximum Power Point) for fast tracking; also, the INC (Incremental Conductance) algorithm and the fuzzy controller skip drawbacks of the P&O algorithm by decreasing oscillations around the MPP and the underestimated. In addition, to improve the control precision, the effectiveness of proposed algorithm is validated by simulation using Matlab/Simulink, the simulation results show that the proposed algorithm tracks the MPP quickly, reduces the oscillation around the MPP effectively and improves the energy conversion efficiency of the PV panel.