一个具有高电压增益和减少电流波的双阶段直流-直流转换器,用于高效的光伏能源采集
1Department of Electrical and Electronics Engineering, Ege University, 35100, Izmir, Turkey. hakan.akca@ege.edu.tr.
Scientific reports
|December 11, 2025
概括
一个新的两级增压转换器 (PTS-BC) 显著减少了光伏 (PV) 系统中的电流和功率波动. 与传统转换器相比,这种设计提高了能源提取和效率.
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:
- 光伏 (PV) 系统需要直流-直流转换器来进行最大功率点跟踪 (MPP).
- 转换器开关操作产生波纹电流,导致电压和功率波纹,降低能量产量.
- 现有的转换器拓与显著的输入电流波纹和重的组件作斗争.
研究的目的:
- 设计和验证用于光伏系统的新型两级增压转换器 (PTS-BC) 拓.
- 为了实现显著减少输入电流和功率.
- 为了提高整体的能量转换效率,并减少组件压力.
主要方法:
- 一个两级增压转换器 (PTS-BC) 被设计成一个交叉的第一阶段用于抑制波纹和第二阶段用于电压调节.
- 模拟和实验研究在450W光伏原型系统上进行.
- 性能在10%至80%的工作周期范围内进行了评估.
主要成果:
- 与传统转换器相比,PTS-BC实现了12%的输入电流波纹减少和17%的功率波纹减少.
- 达到约98%的峰值效率,比TP-BC和SP-BC的效率分别高出0.7%和1.6%.
- 对于相同的输出电压,要求更低的功率周期 (D),减少传导损失和设备应力.
结论:
- 拟议的PTS-BC拓有效地抑制了光伏系统中的输入电流和功率波动.
- 该设计提供了卓越的能量转换性能,使其适合高效率的光伏应用.
- 对于需要低输入波纹和高效率的光伏系统,PTS-BC提供了一个强大的替代方案.
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