摘要
光伏板受遮挡时导致输出最大功率降低造成能源的浪费。为提高光伏发电系统的能源利用率,引入分布式光伏优化理念,并设计了一种分布式光伏优化器,文章分析了优化器的工作原理和控制策略,进行了模拟试验,试验结果表明,分布式光伏优化器性能优良,与传统Buck变化器相比有更低的成本。
When part of the pbotovoltaic plate is shadowedwas keep out, the maximum power out- put drops and it＇sleads to a waste of energy. In order to improve the energy efficiency of pv PV power generation system, introduct an idea of distributed photovoltaic optimization is introduced. The idea means of every photovohaic plate is controlled by MPFT, which adoptsed to study a kind of distributed photovoltaic optimizer. The cost and volume of the common optimizer on the market is high at presentOn present markets the common optimizer cost much and its volume is large. Ac- cording to the needs of cost and volume, the main circuit of the optimizer adopts simplified Buck buck converter, it has lower cost and the same ability compared to with the traditional Bbuck con- verter. The operation principle of the optimizer and its control strategy are analyzed, and the exper- iment is made. The experiment results prove that the distributed photovoltaic optimizer has good performance.
出处
《可再生能源》
CAS
北大核心
2013年第4期27-30,共4页
Renewable Energy Resources
基金
上海市科研计划基金项目(08530511500)
关键词
分布式
光伏优化器
简化Buck变换器
distributed
photovohaic optimizer
simplified Buck buck converter
