一个单阶段的双源逆变器,使用低功耗元件和微型计算机
Majid Ghani Varzaneh1, Amirhossein Rajaei2, Navid Kamali-Omidi3
1Shiraz University of Technology, Shiraz, Iran. m.ghani@sutech.ac.ir.
Scientific reports
|January 20, 2024
概括
一个新的双源逆变器有效地将两个直流源连接到一个单一的三相输出,使用单阶段转换. 这种智能拓增强了混合可再生能源系统,如光伏燃料电池.
科学领域:
- 电气工程 电气工程
- 可再生能源系统可再生能源系统
- 电力电子 电力电子 电力电子
背景情况:
- 传统的双源逆变器通常需要多个直流-直流转换器.
- 整合各种可再生能源,如光伏 (PV) 和燃料电池 (FC),带来了独特的电力管理挑战.
- 现有的拓结构可能很复杂,影响效率和可靠性.
研究的目的:
- 为单阶段转换引入智能双源逆变器拓.
- 为了使两个孤立的直流源能够高效地集成到一个单一的三相输出中.
- 为了减少组件数量并提高混合可再生能源应用的整体系统性能.
主要方法:
- 使用单阶段直流-交流转换方法,消除了对多个输入直流-直流模块的需求.
- 该拓利用阻抗网络,变压器,二极管和电容器进行电力处理.
- 一个简单的Boost-SPWM (正弦脉冲宽度调节) 控制策略被实施用于功率调节.
主要成果:
- 拟议的双源逆变器具有较少的半导体数量,从而提高了效率,成本效益和可靠性.
- 使用220-W/50 Hz原型的实验验证证证了分析结果.
- 转换器表现出令人满意的性能和独立于输入电压和频率变化的操作.
结论:
- 开发的双源逆变器拓为集成多个直流源提供了简化和高效的解决方案.
- 智能控制方法确保可靠的功率调节,这对于混合PV-FC系统至关重要.
- 这种创新设计在可再生能源转换技术方面是一个有前途的进步.
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