| 基于扰动观察法的MPPT控制优化策略 |
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| 引用本文： | 黄礼明,连永圣,陈标龙,林培杰,程树英.基于扰动观察法的MPPT控制优化策略[J].现代电子技术,2011(24):206-208. |
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| 作者姓名： | 黄礼明 连永圣 陈标龙 林培杰 程树英 |
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| 作者单位： | 福州大学物理与信息工程学院; |
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| 摘 要： | 为了提高光伏发电系统的充电效率,系统控制器采用高性能低功耗的ATmega16单片机为核心,通过调节PWM波占空比实时改变Buck变换器的输出电压,采用扰动观察法的MPPT控制策略,实现对光伏发电系统最大功率点的跟踪。针对扰动观察法跟踪过程中可能由于快速扰动导致功率振荡和误判的问题,系统对MPPT算法进行优化,并通过友好的人机界面实时显示最大功率曲线图。测试结果表明,该方法能够保证光伏发电系统快速、稳定、精确地跟踪最大功率点,提高了充电效率。
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| 关 键 词： | 光伏发电系统 MPPT 扰动观察法 算法优化 |
Optimized MPPT Control Strategy Based on Perturbation and Observation Method |
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| HUANG Li-ming,LIAN Yong-sheng,CHEN Biao-long,LIN Pei-jie,CHENG Shu-ying.Optimized MPPT Control Strategy Based on Perturbation and Observation Method[J].Modern Electronic Technique,2011(24):206-208. |
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| Authors: | HUANG Li-ming LIAN Yong-sheng CHEN Biao-long LIN Pei-jie CHENG Shu-ying |
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| Affiliation: | HUANG Li-ming,LIAN Yong-sheng,CHEN Biao-long,LIN Pei-jie,CHENG Shu-ying(College of Physics and Information Engineering,Fuzhou University,Fuzhou 350108,China) |
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| Abstract: | In order to improve the charging efficiency of photovoltaic system,the system controller takes the high-performance low-power ATmega16 microcontroller as a core,changes the output voltage of Buck converter in real-time by adjusting the PWM duty cycle,and uses the MPPT control strategy of perturbation and observation method to achieve tracking of maximum power point of the photovoltaic power generation system.The MPPT algorithm was optimized to solve the problems of power oscillations and misjudgment probabl... |
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| Keywords: | PV system MPPT perturbation and observation method algorithm optimization |
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