摘要
光伏电池本身具有一定的非线性和时变性,因此无法建立精确的数学模型。鉴于此,提出将模糊控制应用到光伏发电系统最大功率点跟踪(Maximum Power Point Tracking,简称MPPT)控制中,并采用Cuk变换器实现MPPT功能。模糊控制能快速响应外界环境的变化,使光伏系统始终工作在最大功率点,提高了光伏系统的效率。实验结果表明,基于模糊控制的方法可有效消除最大工作点处的振荡现象,提高了系统的稳定性。
As the photovoltaic cell has characteristics such as non-linear,time-varying and can not establish a precise mathematical model, the fuzzy control is applied to maximum power point tracking（MPVF） control of photovoltaic power generation system,and the Cuk converter is used to achieve MPPT.Fuzzy control can respond quickly to changes in the external environment,makes the photovohaie system always be working in the maximum power point,improves the efficiency of the photovohaic system.The simulative results show that the fuzzy control can effectively eliminate the oscillation while operating at the maximum power point and improve the system stability.
出处
《电力电子技术》
CSCD
北大核心
2009年第9期38-39,49,共3页
Power Electronics
基金
甘肃省自然科学基金资助项目(3ZS042-B25-001)~~
关键词
电源
跟踪/光伏电池
模糊控制
power
tracking / photovoltaic cell
fuzzy control
