Research on improving adaptive variable step length MPPT algorithm

Research on improving adaptive variable step length MPPT algorithm
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改进自适应变步长MPPT算法的研究

DOI:
10.1504/ijsnet.2015.068177
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发表时间:
2015-03
影响因子:
1.1
通讯作者:
秦实宏
秦实宏
中科院分区:
计算机科学4区
文献类型:
--
作者:
秦实宏

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最大功率点跟踪MPPT光伏发电系统的控制是太阳能发电系统的核心。步长的选择直接影响系统的跟踪速度和功率输出稳定性。本文对变步长电导增量法进行了分析,这是一种改进的自适应变步长电导增量法。通过对光伏电池动态特性和P-U特性曲线的分析,提出了MPPT算法。此外,还建立了Matlab仿真模型。仿真结果表明,该算法能够准确跟踪最大功率点。它还可以大大减少系统跟踪时间,有效避免跟踪偏差。增强了光伏系统的稳定性,同时提高了光伏发电系统输出的效率。
The control of a photovoltaic power generation system with maximum power point tracking MPPT is the core in solar power system. Selecting step length affects tracking speed and power output stability of the system directly. This paper analyses the variable step length conductance incremental method, an improved adaptive variable step length conductance incremental method. The MPPT algorithm is proposed based on the analysis of dynamic characteristics of a photovoltaic battery and P-U characteristic curve. Besides, Matlab simulation model is also established. The simulation results show that the algorithm can track maximum power point accurately. It can also reduce the system tracking time dramatically and avoid tracking deviation effectively. It enhances the stability of the PV system and at the same time improves the efficiency of the photovoltaic power generation system output.
DOI: --
发表时间: 2011
影响因子: 6.7
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通讯作者: Qing Qi-xiang
DOI: --
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通讯作者: Huang Zhuo-xing
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Huang Jin
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发表时间: 2011
期刊: --
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Shi Lin
通讯作者: Shi Lin
DOI: --
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影响因子: --
作者:
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