双源17/25级ANPC逆变器,对设备压力低,零件数量减少,适用于混合动力能源系统
Kazem Varesi1, Mahdi Akhgari2, Mahdi Karimi3
1Faculty of Electrical and Computer Engineering, Sahand University of Technology, Tabriz, Iran. k.varesi@sut.ac.ir.
Scientific reports
|October 13, 2025
概括
这项研究引入了一种新型的活性中性点紧 (ANPC) 多层逆变器. 这种创新的设计减少了组件数量,并提高了产生17和25输出电压水平的效率.
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:
- 多级逆变器对于功率转换至关重要,但通常会受到高组件数量和复杂性的影响.
- 现有的主动中性点紧 (ANPC) 拓需要大量的开关和直流源,影响效率和成本.
- 产生更高的电压水平通常需要更复杂的结构,增加组件的损失和电压压力.
研究的目的:
- 提出一个新的单元增益主动中性点紧 (ANPC) 多层逆变器拓.
- 为了实现17和25输出电压水平,减少组件数量和提高效率.
- 为了消除在双极电压生成中需要H桥的需要,减少开关压力.
主要方法:
- 一个新的ANPC多层逆变器拓设计使用两个直流源和十个开关.
- 对输入电压比率V2=3V1 (三倍) 和V2=5V1 (五倍) 进行分析,以生成17和25级的拓.
- 用现有拓进行比较分析,以评估开关数量,导电损失和效率.
主要成果:
- 拟议的ANPC逆变器产生17和25输出电压级别,分别为V2=3V1和V2=5V1的比率.
- 它可以在任何输出电压级别中实现最少的导电开关数量 (三个).
- 该拓与现有的25级逆变器相比,需要更少的直流源和开关,最大限度地减少电压下降和损失.
- 在实验室规模的原型上进行实验验证,证实了逆变器的有效运行.
结论:
- 拟议的单元增益ANPC逆变器可显著减少组件数量和开关压力.
- 与传统设计相比,它在效率和输出电压质量方面表现出卓越的性能.
- 这种拓是高性能多层电力转换应用的有希望的解决方案.
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