单相非隔离光伏并网逆变器拓扑研究  

RESEARCH ON NON-ISOLATED SINGLE-PHASE GRID-CONNECTED PHOTOVOLTAIC INVERTER TOPOLOGIES

作　　者：王建华[1] 嵇保健[1,2] 赵剑锋[1] 

机构地区：[1]江苏省智能电网技术与装备重点实验室、东南大学电气工程学院,南京210096 [2]南京工业大学自动化与电气工程学院,南京210009

出　　处：《太阳能学报》2014年第5期737-743,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51207023);教育部博士点基金(20120092120051);江苏省高校自然科学基金(12KJB470009);江苏省产学研前瞻性联合研究项目(BY2011156);江苏省科技支撑项目(BE2011174;BE2011188);江苏省科技成果转化专项资金项目(BA2012134)

摘　　要：从直流旁路单元和交流旁路单元的概念出发,提出无漏电流非隔离式单相光伏并网逆变器拓扑的两种类型及其构建方式,涵盖了近年来工业界和学术界提出的一系列无漏电流新型拓扑,并演绎出若干新型拓扑。这类新型拓扑与部分现有拓扑共同构成开关旁路单元无漏电流逆变器族,其拓扑演绎规律为逆变器拓扑族的标准化筛选提供新的思路。仿真与实验验证了理论的正确性。Two types and their construction methods of no leakage current transformerless photovoltaic grid connected inverter are proposed in this paper, which are based on the concept of DC bypass and AC bypass. Then a series of no leakage current inverter topologies are deduced, which include the existing no leakage current inverter proposed by industry and academia in recent years. A family of inverter topologies with switch bypass is formed combined with the novel topologies and some existing ones. The derivation approach provides a new method for inverter topology standardization. At last, simulation and experimental results are provided for the theory verification.

关 键 词：光伏 非隔离单相逆变器 共模电压 漏电流 标准化 

分 类 号：TM615[电气工程—电力系统及自动化]