基于高提升开关电容器的13LCG无变压器用于成本效益高的电网集成
S Hemalatha1, S Balamurugan2, N P Gopinath3
1Department of Electrical and Electronics Engineering, St. Joseph's Institute of Technology, Chennai, India.
Scientific reports
|October 21, 2025
概括
一个新的高提升开关电容十三级 (13L) 常用地面变压器无变压器为太阳能光伏系统提供了低成本和高效率的六的电压增益. 这种无变压器逆变器拓有效地抑制了泄漏电流并消除了变压器损失.
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:
- 无变压器逆变器拓对于太阳能光伏和电网连接系统至关重要.
- 共同点的特点是尽量减少泄漏电流,提高效率.
- 现有的拓通常面临着电压增益和成本的挑战.
研究的目的:
- 引入一种新型的高提升开关电容十三级 (13L) 常用地面变压器无变压器拓 (HBSC-13L-CGTLI).
- 为了实现高电压增益 (六) 并降低整体逆变器成本.
- 为了证明与现有的13L逆变器拓相比,性能优越.
主要方法:
- 开发一种新的HBSC-13L-CGTLI拓,使用单个直流源,十三个开关,四个开关电容和三个二极管.
- 操作模式的详细分析,开关电容器设计,过器电感器设计和损失分析.
- 通过MATLAB/Simulink模拟和1kW实验室原型的实验结果进行验证.
主要成果:
- 拟议的HBSC-13L-CGTLI在降低开关电压压力 (67%的输出电压) 的情况下实现了6的电压增益.
- 该拓消除了对单独负电压水平生成电路的需求.
- 模拟和实验结果证实了在各种操作条件下拓学的有效性.
结论:
- 拟议的HBSC-13L-CGTLI拓为太阳能光伏和电网连接应用提供了具有成本效益和高效的解决方案.
- 它在电压增益,成本和性能方面比现有的十三级逆变器拓具有显著的优势.
- 该拓有效地抑制了泄漏电流,并提高了能量转换效率.
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