一个基于13级开关电容器的多级逆变器,具有减少组件和冲动电流限制的组件
Hossein Mansourizadeh1, Majid Hosseinpour2, Ali Seifi1
1Department of Electrical Engineering, University of Mohaghegh Ardabili, Ardabil, Iran.
Scientific reports
|January 2, 2025
概括
一个新的混合开关电容器逆变器减少了组件数量并简化了控制. 这种设计实现了自动电容平衡,为多级电力转换提供了具有成本效益的解决方案.
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:
- 多级逆变器对于高功率应用至关重要.
- 传统的开关电容器逆变器经常受到高组件计数和复杂控制的影响.
- 实现高效可靠的电容平衡仍然是开关电容拓学的挑战.
研究的目的:
- 提出一种混合开关电容逆变器拓.
- 为了减少组件的数量和简化控制.
- 为了实现自动,无传感器电容平衡.
主要方法:
- 开发了一种混合结构,结合了开关电容 (SC) 和飞行电容 (FC) 单元.
- 该设计整合了11个开关和3个电容器,产生13个电压级别.
- 飞行电容器固有的电压平衡使控制简化为六个开关信号.
主要成果:
- 拟议的13级逆变器使用的部件比现有的SC逆变器少.
- 它具有较低的电容器最大额定电压和较低的导电损失.
- 在0.5Vdc的自动电容平衡使无传感器操作和成本降低.
结论:
- 混合开关电容器逆变器在组件减少和控制简单方面提供了显著的优势.
- 它为多级电压生成提供了具有成本效益和效率的解决方案.
- 模拟结果验证了拟议结构的性能和好处.
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