一个17级的八倍提升开关电容逆变器,在设备上具有较低的电压压力
Majid Hosseinpour1, Meysam Noori2, Mahdi Shahparasti3
1Department of Electrical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran. Hoseinpour.majid@uma.ac.ir.
Scientific reports
|June 22, 2024
概括
一个新的开关电容器多级逆变器提供八倍的电压增益和使用最小组件的17级输出. 它固有的自电压平衡和降低的冲动电流提高了可再生能源应用的效率和寿命.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 可再生能源系统可再生能源系统
背景情况:
- 多层逆变器对于电力转换至关重要,特别是在可再生能源整合方面.
- 现有的多层逆变器拓通常面临着电压平衡,组件计数和控制复杂性的挑战.
- 高压增益和高效的功率传输是现代电力电子转换器的关键要求.
研究的目的:
- 引入一个新的开关电容多级逆变器 (SCMLI) 拓.
- 为了实现高电压增益 (八倍) 和17级输出电压.
- 为了证明固有的电压平衡和改进的操作特性.
主要方法:
- 拟议的拓利用3个电容器,13个开关和3个二极管来实现17个级别的输出.
- 包含一个电荷限制电感器,用于在电容充电期间管理冲进电流.
- 在没有外部传感器或控制电路的情况下,可以实现自电压平衡能力.
- 对功能模式和组件应力进行详细分析.
- 与现有的SCMLI结构进行了比较.
主要成果:
- 逆变器实现了八倍的电压增益和17个级别的输出.
- 开关电容器提供了自然电压平衡,简化了控制.
- 电荷限制电感器减少了冲动电流,提高了电容器寿命,并降低了输入源电流.
- 开关经历可控的电压压力 (高达输入电压的4倍).
- 模拟 (Matlab/Simulink) 和实验室实施验证了性能.
结论:
- 拟议的SCMLI拓提供高电压增益和多层输出,具有固有的电压平衡.
- 该设计有效地减轻了急需的当前问题,提高了可靠性和寿命.
- 这种结构为可再生能源整合和其他电力转换应用提供了一个有前途的解决方案.
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