【摘要】 近年来,用于可再生能源发电的高频并网逆变技术在电力电子与控制技术领域已成为研究热点。在此总结了目前常用的单相高频并网光伏逆变器的各种主电路拓扑结构,并按电路拓扑进行分类,对每一种拓扑进行了分析研究。通过对其工作原理的描述,比较了各种电路拓扑的性能特点及在应用中存在的优缺点,指出了高频并网逆变器的应用发展方向和与国外技术存在的差距。更多还原

【Abstract】 High-frequency grid-connected inverting technologies for generating electricity using renewable energy are be- coming an research hotpot in power electronic and controlling area.In this paper,all kinds of main circuit topologies of popular single-phase high-frequency grid-connected PV inverters currently have been summarized,and the main circuit topologies based on the differ class of circuit topologies have been researched.Through the expression of these circuit prin- ciple,the operating performances and electric characteristics have been analyzed,including the advantage and disadvan- tage in application. The difference of the technologies between domestic and oversea are pointed out.更多还原