The potential impacts of extremely low temperature on threshold inception characteristics of negative corona discharge are straightly estimated through the numerical algorithm and the extremely low temperature experiments. First, the inception criterion models of glow and streamer corona are solved for assessing the salient characteristics of corona inception at varying temperatures. The feasibility of the inception models applied to different temperature environments has been verified with our measurements and literature experimental data. Through introducing temperature into transport properties, the primary avalanche propagation, ionization boundary, and electron distribution are simulated at two inception modes. Computational results show that the microscopic parameter of negative corona inception has a pronounced relationship with temperature. The inception voltage of the wire-plate electrode is measured in a platform with temperature adjustable. It is observed that with the decrease of temperature, the inception field and voltage increases pronouncedly in the range from −100 °C to 30 °C, which can be attributed to the rise of effective ionization and photon absorption.

中文翻译：

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极低温对负电晕放电阈值起始特性的潜在影响

通过数值算法和极低温实验，直接估计了极低温对负电晕放电阈值起始特性的潜在影响。首先，解决了辉光和流光日冕的起始准则模型，以评估不同温度下日冕起始的显着特征。我们的测量和文献实验数据验证了初始模型应用于不同温度环境的可行性。通过将温度引入传输特性，模拟了两种初始模式下的初级雪崩传播、电离边界和电子分布。计算结果表明，负日冕开始的微观参数与温度有明显的关系。在温度可调的平台上测量线板电极的起始电压。观察到随着温度的降低，起始场和电压在-100°C到30°C的范围内显着增加，这可以归因于有效电离和光子吸收的增加。