• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>4th IET Clean Energy and Technology Conference >Neutral point clamped full bridge topology for transformerless PV inverters with improved clamping branch
【24h】

Neutral point clamped full bridge topology for transformerless PV inverters with improved clamping branch

机译：中性点钳位全桥拓扑，用于具有改进钳位分支的无变压器光伏逆变器

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In grid-tied photovoltaic (PV) systems transformerless inverters are attractive due to reduced size, weight and cost. However, the absence of galvanic isolation forms a direct path between PV to grid. To meet the safety requirement in transformerless systems, it needs to be designed carefully. A lot of research has been done based on the reduction of the common mode current (CMC) with constant common mode voltage (CMV). Neutral point clamped (NPC) topology is an effective way to eliminate the leakage current. Recently, PNNPC topology has been proposed which is able to eliminate CMC with high-efficiency. Based on the analysis, a modified NPC inverter is proposed in this paper. The proposed topology is sharing the similar CMC elimination capability but with simpler design and higher efficiency. The principle operation and the common-mode behaviour of the proposed topology are discussed and investigated. Theoretical finding of the proposed topology is validated through Matlab/Simulink.
机译：在并网光伏（PV）系统中，由于减小了尺寸，重量和成本，无变压器逆变器很有吸引力。但是，电流隔离的缺乏形成了PV到电网之间的直接路径。为了满足无变压器系统的安全要求，需要仔细设计。基于以恒定的共模电压（CMV）降低共模电流（CMC），已经进行了很多研究。中性点钳位（NPC）拓扑是消除泄漏电流的有效方法。近年来，已经提出了能够高效消除CMC的PNNPC拓扑。在分析的基础上，提出了一种改进的NPC逆变器。提出的拓扑具有相似的CMC消除功能，但设计更简单，效率更高。讨论并研究了所提出拓扑的原理操作和共模行为。通过Matlab / Simulink验证了提出的拓扑的理论发现。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号