一个17级的四倍提升开关电容逆变器,具有减少的设备和有限的充电电流
Majid Hosseinpour1, Masoumeh Derakhshandeh2, Ali Seifi2
1Department of Electrical and Computer Engineering, University of Mohaghegh Ardabili, Ardabil, Iran. hoseinpour.majid@uma.ac.ir.
Scientific reports
|March 15, 2024
概括
一个新的四倍提升开关电容器多级逆变器提供了具有成本效益的17级输出,使用更少的组件. 它的自平衡电容和高效设计得到了实验结果的验证.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 逆变器技术 逆变器技术
背景情况:
- 多级逆变器对于电源质量和效率至关重要.
- 现有的拓通常面临着组件数,电压平衡和成本方面的挑战.
- 持续需要改进的逆变器设计,具有更高的电压水平和更好的性能.
研究的目的:
- 提出一个新的四倍提升开关电容器多层逆变器拓.
- 用单个直流源实现17级的输出电压.
- 证明拟议结构的成本效益和效率.
主要方法:
- 拟议的结构使用直流源,11个开关和3个电容器来产生电压.
- 电容器电压的自平衡是通过与输入源的串行/并行连接来实现的.
- 水平移动脉冲宽度调制 (LS-PWM) 用于切换控制.
- 一种软充电方法限制了冲动电流.
- 基于关键绩效指标的现有拓学的比较分析.
主要成果:
- 拟议的逆变器产生17级的输出电压.
- 与其他17级拓相比,它需要更少的半导体设备.
- 实现了电容器的自动电压平衡.
- 该结构证明了成本效益和可接受的功耗损失.
- 实验验证证在各种条件下证实了令人满意的性能.
结论:
- 拟议的四倍提升开关电容器多级逆变器是实现高电压水平的可行和高效的解决方案.
- 其较少的组件数和成本效益使其对实际应用具有吸引力.
- 自平衡功能简化了操作,提高了可靠性.
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