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实时阻抗匹配系统的开发,用于在实验性先进超导托卡马克中进行离子环子子共振加热
Q Q Chen1,2, L N Liu1, C M Qin1
1Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China/People's Republic of China.
The Review of scientific instruments
|February 11, 2024
概括
在EAST托卡马克上,用于离子旋转子共振加热 (ICRH) 的新实时阻抗匹配系统通过快速调整天线负载来确保稳定,长脉冲等离子体运行. 这种基于电容的方法在一秒内实现了阻抗匹配.
科学领域:
- 等离子体物理学的物理学
- 核聚变能源工程 核聚变能源工程
- 电气工程 电气工程
背景情况:
- 像实验先进超导托卡马克 (EAST) 这样的核聚变装置的稳定运行需要强大的离子旋共振加热 (ICRH) 系统.
- 在长时间脉冲放电期间的天线负载变化需要实时阻抗匹配以实现高效的ICRH.
- 现有的阻抗匹配系统可能无法充分解决先进的托卡马克实验中的动态负载变化.
研究的目的:
- 为EAST ICRH系统开发和实施实时阻抗匹配系统.
- 为了应对长脉冲放电期间的天线负载变化,以实现稳定的等离子体运行.
- 在托卡马克实验中提高高功率ICRH的效率和可靠性.
主要方法:
- 提出了一种基于电容的新型阻抗匹配方法.
- 作为反参数,利用了来自传输线的反射电压.
- 使用可编程逻辑控制器 (PLC) 控制电机进行实时阻抗调整.
- 在实验室测试平台和EAST ICRH系统上测试了系统.
主要成果:
- 在EAST ICRH系统上成功实现了实时阻抗匹配系统.
- 证明了在1秒内匹配可变阻抗的能力.
- 实现了ICRH系统的稳定,高功率和长脉冲运行.
- 验证了系统在应对天线负载变化的有效性.
结论:
- 开发的实时阻抗匹配系统有效地管理EAST ICRH系统中的可变负载.
- 基于电容的方法确保了稳定和高效的ICRH,这对于EAST的实验要求至关重要.
- 这一进步支持了在核聚变研究中实现稳定,长脉冲等离子体放电的目标.
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