一种新型最大功率跟踪光伏充电系统的设计与实现

2011 First International Conference on Instrumentation, Measurement, Computer, Communication and Control Pub Date : 2011-10-21 DOI:10.1109/IMCCC.2011.58

Junliang Han, Haibo Xu, Qinghua Song, Shaozhong Zheng

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引用次数: 0

摘要

提出了一种高效率、保护功能完备的光伏充电系统电路拓扑结构。为了获得更好的跟踪性能，提出了一种自适应步长调整的改进P&O算法。提出了一种结合恒压跟踪(CVT)算法和改进的自适应摄动与观测(P&O)算法的最大功率点跟踪(MPPT)综合策略。样机的实现验证了所提出方案的可行性。实验结果表明，在PWM工作模式下，实现了较高的MPPT精度和功率转换效率。

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Design and Implementation of a Novel Photovoltaic Charge System with Maximum Power Point Tracking

A novel circuit topology for photovoltaic charge system with high efficiency and complete protection functions was presented in the paper. A modified P&O algorithm for better tracking performance with adaptive step length adjustment was proposed. And a comprehensive strategy for maximum power point tracking (MPPT) combined with the Constant Voltage Tracking (CVT) algorithm and the modified adaptive Perturbation and Observation (P&O) algorithm was developed. A prototype was implemented to very the feasibility of the proposed scheme. The experimental results showed that high MPPT accuracy and high power conversion efficiency were achieved under PWM operation mode.

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2011 First International Conference on Instrumentation, Measurement, Computer, Communication and Control

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