高收益和高效率的软切换二级增压转换器用于可再生能源应用
Farag Elghabsi1, Mohd Rodhi Sahid1, Razman Ayop1
1Department of Electrical Power Engineering, Faculty of Electrical Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia.
Scientific reports
|October 16, 2025
概括
一种新的高收益,高效率的正方体提升转换器 (QBC) 使用软切换来改善电动汽车 (EV) 和可再生能源系统的功率转换. 这种设计提高了电动汽车充电站的效率和组件可靠性.
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:
- 方位增压转换器 (QBC) 对于可再生能源,电动汽车 (EV) 和电动汽车充电站等应用中高效的功率转换至关重要.
- 高压增益和效率是这些应用程序的关键要求,通常具有挑战性,难以同时实现.
研究的目的:
- 推出一种具有高收益,高效率,具有软切换能力的新型QBC.
- 为可再生能源供电电动汽车充电站量身定制转换器设计.
- 为了提高功率转换器的效率,可靠性和组件寿命.
主要方法:
- 包含一个合电感器 (CIN),以实现高电压增益 (VGN) 在有限的工作周期.
- 在电源开关和二极管的零电压切换 (ZVS) 和零电流切换 (ZCS) 中使用了CIN的泄漏电感.
- 采用主动电路来降低半导体组件的电压压力.
- 在各种操作条件下分析了在连续导电模式 (CCM) 中的转换器性能.
主要成果:
- 设计的QBC通过软切换技术实现了高电压增益和高效率.
- 零电压切换 (ZVS) 和零电流切换 (ZCS) 显著降低了切换损失.
- 活动紧管电路有效降低功率元件的电压压力.
- 一个250W的硬件原型证明了实际适用性,并验证了转换器的性能.
结论:
- 拟议的QBC提供了一个高效,高收益的解决方案,用于将可再生能源整合到电动汽车充电基础设施中.
- 软切换技术和主动电路提高了转换器的可靠性和部件的寿命.
- 实验验证证证实了转换器对于苛刻的现实应用的有效性.
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