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一种基于高频和低频组合的船舶中压电网的地面电容度测量方法
Shuai Wang1, Liang Chen1, Zhikang Li1
1Naval University of Engineering, Wuhan 430030, China.
Sensors (Basel, Switzerland)
|December 11, 2025
概括
本研究引入了一种改进的双频方法,用于准确测量船上中压电力系统的地面电容. 新方法确保了精确的实时电容监测,这对于高阻力接地系统至关重要.
科学领域:
- 电气工程 电气工程
- 电力系统分析 分析 分析
- 海洋电气技术 海洋电气技术
背景情况:
- 对于大型船只来说,中压电源系统是必不可少的.
- 对高阻力接地系统来说,对系统电容与地面的准确测量至关重要.
- 现有的方法在这些动态环境中难以实时测量电容.
研究的目的:
- 开发一种可靠的方法,在线实时测量船上中压电力系统的地面电容.
- 为了解决动态电容变化的传统信号注入方法的局限性.
- 为在高阻力接地船舶动力系统中确定接地参数提供基础.
主要方法:
- 分析传统的信号注入方法是否适用于船上系统.
- 提议改进的双频方法,将高频和低频技术结合起来.
- 错误分析和模拟以确定最佳频率选择 (5000/120 Hz).
主要成果:
- 发现传统方法不适合实时测量.
- 提议的改进的双频方法,使用"一个低频 + 一个高频"原则,提高了准确性.
- 模拟和实验验证证了该方法的有效性.
结论:
- 改进的双频方法准确地测量中压,高电阻接地船舶动力系统中的地面电容.
- 选择的5000/120 Hz频率方案对于实时电容监控是有效的.
- 这一进步支持船舶动力系统的稳定和安全运行.
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