摘要
针对光伏电池输出随光照强度和环境温度变化的特点,提出一种新的基于扰动观察法的最大功率点跟踪(Maximum Power Point Tracking,MPPT)控制芯片的设计,以获得最大化的输出功率并提高电池的利用效率.芯片的特点是采用了改进的控制策略,并应用全模拟方法实现,对其核心模块乘法器与微分器的设计进行了优化,简化了结构设计,改善了控制性能.芯片具有应用方便,硅片面积小,成本低的优点.
Considering that the output of the photovoltaic panel is dependent upon the irradiation and environmental temperature, a novel MPPT controller chip based on Perturb and Observe （P＆O）-arithmetic was proposed to maximize its output power and optimize its efficiency. It features the improved control strategy and is implemented by analog circuits. The core modules including the multiplier and differentiator were optimized to simplify its structure and improve the control performance. It is easy to apply and its area as well as its cost is reduced.
出处
《微电子学与计算机》
CSCD
北大核心
2008年第12期197-202,共6页
Microelectronics & Computer
基金
国家自然科学基金项目(90707002)
