首页> 外文期刊>Industrial Electronics, IEEE Transactions on >Carrier-Based PWM Methods With Common-Mode Voltage Reduction for Five-Phase Coupled Inductor Inverter
【24h】

Carrier-Based PWM Methods With Common-Mode Voltage Reduction for Five-Phase Coupled Inductor Inverter

机译:五相耦合电感器逆变器基于载波的具有共模降压的PWM方法

获取原文
获取原文并翻译 | 示例
       

摘要

Carrier-based pulsewidth-modulation (CBPWM) techniques are popular due to their simplicity, and have been widely researched for various three-phase inverter configurations. In this paper, two CBPWM techniques are proposed to reduce the common-mode (CM) voltage generated by the five-phase inverter. The five-phase inverters have more flexibility in reducing the CM voltage than their three-phase counterparts because they have more phase legs, hence finer control over the star-point voltage of the load. Two methods are proposed for the conventional two-level five-phase inverter to reduce the CM voltage; one utilizing adjacent modulating waveforms and the other utilizing nonadjacent modulating waveforms. The coupled inductor inverter (CII) uses coupled inductors to generate multilevel outputs. As the volt-second balance must be maintained across each coupled inductor, direct application of the proposed methods on the CII inverter will result in overcurrents in the coupled inductors. Hence, the proposed methods are further improved to ensure the volt-second integral over each switching period is zero. Moreover, the two proposed methods are designed to reduce switching events and prevent unexpected states occurring during the switching transitions. The performance and the switching strategy of both methods are verified by both simulations and experiments on a prototype of five-phase CII.
机译:基于载波的脉冲宽度调制(CBPWM)技术由于其简单性而广受欢迎,并且已针对各种三相逆变器配置进行了广泛的研究。在本文中,提出了两种CBPWM技术来降低五相逆变器产生的共模(CM)电压。与三相逆变器相比,五相逆变器在降低CM电压方面具有更大的灵活性,因为它们具有更多的相脚,因此可以更好地控制负载的星点电压。对于传统的两电平五相逆变器,提出了两种降低CM电压的方法。一个利用相邻的调制波形,另一个利用不相邻的调制波形。耦合电感器逆变器(CII)使用耦合电感器生成多电平输出。由于必须在每个耦合电感器之间保持伏秒平衡,因此在CII逆变器上直接应用建议的方法将导致耦合电感器中产生过电流。因此,所提出的方法被进一步改进以确保每个开关周期内的伏秒积分为零。此外,所提出的两种方法旨在减少开关事件并防止在开关过渡期间发生意外状态。通过五相CII原型的仿真和实验验证了这两种方法的性能和切换策略。

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