基于FHA的广泛输出电压范围的LLC转换器的封闭式设计优化
Ahmed M A Hussein1, Mostafa I Marei2, Mohammad H Soliman1
1Electric Power and Machines Department, Ain Shams University, Cairo, 11535, Egypt.
Scientific reports
|January 10, 2026
概括
本研究引入了一种用于设计LLC共振转换器的新分析方法,提高了跨广电压范围的效率. 计算效率高的方法避免了复杂的数值解析器,以实现最佳的参数确定.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 转换器设计 转换器设计
背景情况:
- 在LLC共振转换器中,输入/输出电压范围广泛,这给设计带来了重大挑战.
- 传统的数值优化方法用于转换器设计是计算密集的.
- 在广泛的输出电压上实现调节需要更高的感应比率和更广泛的开关频率.
研究的目的:
- 为LLC共振转换器开发一种新的,计算效率高的设计优化策略.
- 为系统和非代的最佳设计建立封闭形式的分析方程.
- 为分析广泛转换器设计权衡提供一个框架.
主要方法:
- 对于LLC共振转换器设计的闭式分析方程的推导.
- 为最佳参数确定制定一个逐步程序.
- 通过模拟对495W的LLC转换器进行验证,其输入 (320-370V) 和输出 (35-165V) 范围广泛.
主要成果:
- 拟议的分析方法使得最佳的LLC转换器设计可以在没有数值解决器的情况下实现.
- 该方法在计算上是高效和系统的.
- 模拟的495W转换器实现了全输出电压范围和接近全负荷的峰值效率.
- 在整个操作范围保持软切换.
结论:
- 这种新的分析方法为设计LLC共振转换器提供了一种高效和系统的方法,用于广泛的电压应用.
- 这一策略提高了全负载效率,并保持了软切换.
- 衍生式方程促进了设计权衡分析,简化了优化过程.
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