Development and application of experimental platform for vacuum insulator stack
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摘要: 为解决绝缘堆真空沿面闪络的问题，研制了面向脉冲功率装置应用的真空绝缘堆耐压考核实验平台，建立了绝缘堆考核实验平台等效电路模型，分析了真空绝缘堆环间闪络对绝缘堆电压的影响。基于该平台开展了三种材料绝缘堆的真空沿面耐压考核实验，验证了真空绝缘堆考核实验平台的实用性与可靠性。该工作的开展为脉冲功率装置真空绝缘堆的工程化研制提供参考，同时为新型绝缘材料的应用研究提供考核实验平台。Abstract: The study of vacuum surface flashover along the insulator ring was carried out. An experimental platform for vacuum insulator stack was built. The influence of flashover among insulator ring on the voltage of the vacuum insulator stack was evaluated by equivalent circuit model. Vacuum surface flashover along the three kinds of material insulator stacks were carried out, which verify the availability and reliability of the experimental platform. This work provides a reference for the engineering research of the vacuum insulator stack of pulse power device, and also provides an experimental platform for research of new insulation materials.
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Key words:
- pulse power /
- vacuum insulator stack /
- voltage /
- surface flashover
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图 1 真空绝缘堆考核实验平台结构框图
Figure 1. Profile schematic of vacuum insulator stack experiment platform
图 2 真空绝缘堆考核实验腔剖面结构示意图
Figure 2. Profile schematic of experimental cavity for vacuum insulator stack
图 3 真空绝缘堆电参数计算
Figure 3. Calculation of electrical parameters of vacuum insulator stack
图 4 绝缘堆考核实验平台等效电路模型
Figure 4. Circuit model of full size insulator stack test platform
图 5 相同馈入电压下三种材料绝缘堆电压波形
Figure 5. Voltage waveform of insulator stack at the same input voltage
图 7 绝缘堆上实验与仿真计算电压波形
Figure 7. Voltage waveforms of experiment and simulation on insulator stack
表 1 绝缘堆电压随等效电容的变化
Table 1. Variation of voltage on insulator stack with capacitance
number of insulator ring flashover maximum capacitance of insulator stack Cs/nF peak voltage on insulator stack Vp/MV 0 1.08 1.422 1 1.10 1.420 2 1.14 1.417 3 1.47 1.386 
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表 2 实验研究对象
Table 2. Experimental objects
material supplier permittivity frequency/MHz HMWPE Russia 2.35 1 CLPS Chengdu Tongming Innovation Technology Co., LTD 2.47 1 M-CLPS Northwest Institute of Nuclear Technology (NINT) 2.48 1
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