一个单相七级开关电容器与普通地面逆变器以及改进的相位移调制技术
Bisma Saif1, Adil Sarwar1, Shafiq Ahmad2
1Department of Electrical Engineering, ZHCET, Aligarh Muslim University, Aligarh, 202002, India.
Scientific reports
|February 5, 2025
概括
这项研究引入了一种新的无变压器光伏逆变器拓,提高了效率并减少了波. 拟议的设计实现了可再生能源系统的高效率和更好的电力质量.
科学领域:
- 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
- 逆变器技术 逆变器技术
背景情况:
- 光伏逆变器对于可再生能源至关重要,但经常面临效率,成本和尺寸之间的权衡.
- 传统逆变器的更高效率可能会导致组件数量增加,增加成本和批量.
研究的目的:
- 提出一个新的单相七级变压器,没有变压器的变压器拓,具有共同的基础.
- 提高光伏系统的效率和减少光伏系统中的波扭曲.
主要方法:
- 开发使用10个开关,4个电容器和1个二极管的单相七级变压器少通用地面拓.
- 实施了改进的相位转移 (PS) 调制技术,以最大限度地减少功率损失.
主要成果:
- 通过改进的PS调制,在15W时实现了98.05%的最高可达效率.
- 压力波器的总波扭曲 (THD) 从17.20%降低到15.29%.
- 对当前波的THD显著下降,从10.15%降至5.07%.
结论:
- 拟议的无变压器逆变器拓为光伏应用中高效和高质量的功率转换提供了一个引人注目的解决方案.
- 通过模拟和硬件结果的验证证实了新逆变器设计的性能和可靠性.
相关概念视频
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01:22Phase-lead and Phase-lag Controllers
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01:21Generation of Three-Phase Voltage
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01:24Time and frequency -Domain Interpretation of Phase-lead Control
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