Gaoya dianqi为解决传统电阻型超导限流器因超导组件参与常态通流而产生的超导带材用量过多及电流引线漏热功率过大等问题，提出了一种适用于中压船舶直流电力系统短路故障保护的新型混合型超导限流器拓扑结构。对其基于IGBT、高速真空开关的联合换流过程进行了试验研究与理论计算，得出了电容、电感、电阻等参数对换流过程的影响规律；采用盘式无感绕制的方式制作了超导带材盘，组成的高温超导组件电感值仅2.9 μH；介绍了限流器用高速真空开关的触头运动特性；最后对限流器样机进行了试验，样机成功将预期峰值为57.6 kA的短路电流限流至24 ...
陆利强 +4 more
doaj
Gaoya dianqi近几年，C4F7N/CO2混合气体因为较低的温室效应和优异的绝缘性能受到广泛关注，但是C4F7N的电弧分断性能实验昂贵、费时，所以文中以SF6和C4F7N/CO2混合气体为研究对象，建立了在固定开距直流电源条件下的电弧模型。通过电弧累计能量和电导的计算结果分析SF6和C4F7N/CO2混合气体的灭弧性能，通过对径向温度、物性参数的分析和能量运输的计算分析SF6和C4F7N/CO2混合气体的换热机理。研究结果表明，C4F7N/CO2混合气体的电弧特性比较接近SF6气体 ...
李静, 荐雯, 曹云东, 王成丽
doaj
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