...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Industrial Electronics >Adjustable Proportional Hybrid SVPWM Strategy for Neutral-Point-Clamped Three-Level Inverters
【24h】

Adjustable Proportional Hybrid SVPWM Strategy for Neutral-Point-Clamped Three-Level Inverters

机译：中性点钳位三电平逆变器的可调比例混合SVPWM策略

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

Neutral-point (NP)-clamped three-level inverter, which is a widely used topology of multilevel converters, suffers from the NP voltage drift as its main technical drawback. The nearest-three-virtual-vector $(hbox{NTV}^{2})$ modulation method can control the NP voltage balance for any load over the full range of inverter output voltage. However, compared with the nearest-three-vector (NTV) modulation method, $hbox{NTV}^{2}$ increases the switching frequency. This paper combines $hbox{NTV}^{2}$ with NTV, and the two methods are used alternately in a fundamental cycle. The duty-cycle coefficients of the redundant small vectors are analyzed to explore the intervals where NTV can control the NP voltage balance in a fundamental cycle. The proportional parameter, which represents the combination of the two methods in hybrid space vector pulsewidth modulation, can be selected to achieve a high-performance NP balance control and low switching frequency. The steady- and transient-state behaviors of the proposed strategy are analyzed in this paper. The experimental results verify the validity of the proposed strategy.
机译：钳位中性点（NP）的三电平逆变器是多电平转换器的一种广泛使用的拓扑结构，其主要技术缺点是遭受NP电压漂移的困扰。最近的三个虚拟矢量 $（hbox {NTV} ^ {2}）$ 调制方法可以控制NP逆变器输出电压整个范围内任何负载的电压平衡。但是，与最近三向量（NTV）调制方法相比， $ hbox {NTV} ^ {2} $ 增加开关频率。本文将 $ hbox {NTV} ^ {2} $ 与NTV结合在一起，并且这两种方法在基本方法中交替使用周期。分析冗余小矢量的占空比系数，以探索NTV可以控制基本周期中NP电压平衡的间隔。可以选择比例参数，该参数代表混合空间矢量脉宽调制中两种方法的组合，以实现高性能的NP平衡控制和低开关频率。本文分析了该策略的稳态和瞬态行为。实验结果验证了所提策略的有效性。

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