• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2015 International Conference on Energy Systems and Applications >Protection of permanent faults on DC overhead lines in hybrid converter based HVDC system
【24h】

Protection of permanent faults on DC overhead lines in hybrid converter based HVDC system

机译：基于混合换流器的HVDC系统中直流架空线上的永久性故障保护

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

Due to the popularity of power electronics devices HVDC system becomes potential candidate for grid integration of renewable energy over long transmission. The paper presents hybrid multilevel converter (HMC), which is one of the most suitable replacement for traditional voltage source converters because of fast response during dc link fault on overhead lines. HMC consists of two main parts, one which is director switches (DSs) made from number of series insulated-gate-bipolar-transistors (IGBTs) and second one is wave shaping circuit (WSC) consists of stack of full-bridge sub modules (FSMs). This paper mainly focuses on the modulation techniques and control for the DSs and WSCs. To determine the number of FSM to be inserted, nearest level control (NLC) method is used in this paper. Third harmonic injection and sorting method also discussed for the capacitor voltage balancing. Current and voltage waveforms under normal condition and dc fault condition are analyzed by using MATLAB simulation.
机译：由于电力电子设备的普及，高压直流输电系统已成为可再生能源并网长距离输电的潜在候选者。本文提出了混合式多电平转换器（HMC），由于架空线上直流链路故障期间的快速响应，它是传统电压源转换器的最适合替代产品之一。 HMC由两个主要部分组成，一个是由多个串联的绝缘栅双极晶体管（IGBT）制成的导向开关（DS），第二个是由整桥子模块堆叠组成的波形整形电路（WSC）（ FSM）。本文主要关注DS和WSC的调制技术和控制。为了确定要插入的FSM数量，本文使用最近电平控制（NLC）方法。还讨论了用于电容器电压平衡的三次谐波注入和分选方法。利用MATLAB仿真分析了正常状态和直流故障状态下的电流和电压波形。

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