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低导电EMI单相提升PFC与滑动频率调制
Zhansen Akhmetov1, Muhammad Abdelraziq1, Zeljko Pantic1
1Electrical & Computer Engineering, Department North Carolina State University, Raleigh, USA.
概括
这项研究比较了一种新的滑动频率调制 (SFM) 提升功率因子校正 (PFC) 电路与传统的恒定频率调制 (CFM) PFC. SFM PFC 显示了降低导电磁干扰 (EMI) 排放,满足了严格的标准.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 电磁兼容性 电磁兼容性 电磁兼容
背景情况:
- 功率因子校正 (PFC) 电路对于满足交流电网连接转换器中的电磁干扰 (EMI) 和总波扭曲 (THD) 标准至关重要.
- 输入EMI过器通常需要减轻从PFC电路注入电网的高频噪声.
研究的目的:
- 讨论和评估使用滑动频率调制 (SFM) 的低导电磁辐射增强PFC电路.
- 为了比较SFM提升PFC与常规恒定频调制 (CFM) 提升PFC的性能.
主要方法:
- 为SFM和CFM开发分析损失模型,以促进PFC拓.
- 对SFM和CFM提升PFC电路的比较分析,它们在120kHz运行,具有相同的名值功率 (300W) 和输出电压 (383V).
- 通过模拟和实验测试验证分析结果的验证.
主要成果:
- 与CFM增强PFC相比,SFM增强PFC的电磁导电排放量较低.
- 分析损失模型准确地预测了两个调制技术之间的性能差异.
- 实验和模拟结果证实了SFM在减少EMI方面的有效性.
结论:
- 滑动频率调制 (SFM) 提供了一种可行的解决方案,用于设计带有减少导电EM排放的提升PFC电路.
- 拟议的SFM提升PFC有效地满足EMI和THD标准.
- 这种方法可以替代传统的输入EMI过要求.
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