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最近,110kV娄门变电站发生一起10kV电压互感器起火燃烧事故,现通过这起事故对防止电压互感器故障提出几点建议.…… 相似文献
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采用蒙特卡罗方法开展了氚基同位素电池在辐致伏特效应和辐致光伏效应两种不同能量转换模式下的性能研究。探讨了换能材料的几何物理参数对电池电学输出性能的影响,设计制备了单层和叠层两类氚基同位素电池,测试分析了增大氚源强度、采用叠层构型两种方式对电池电学输出的提升效果。模拟结果表明:Si、SiC、GaAs光伏组件均可用于辐致伏特效应氚基同位素电池换能,且存在各自最佳厚度参数,使得电池电学输出性能达到最优,分别为3.8μm、2.2μm、1.7μm;对于辐致光伏效应氚基同位素电池,可通过调整ZnS∶Cu荧光层的厚度,使出射的荧光辐照度达到最大,进而优化电池电学输出性能。结果提示,增大氚源强度、采用叠层构型均可实现氚基同位素电池最大输出功率等电学参数的有效提升,其中并联叠层的最大输出功率可达到106.138 nW,相比于单层构型增幅超过64%。 相似文献
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In order to solve the limitations of the traditional monitoring methods for nuclear power plants, this paper proposes to introduce Kernel Principal Component Analysis (KPCA) into the online monitoring field of nuclear power plant equipment, and design the monitoring method and online monitoring strategy. In order to verify the effectiveness of the algorithm, it has been applied in the real monitoring case of the motor driven main feed water pump a nuclear power plant in China. The simulation results show that the KPCA algorithm can adapt to the requirements of nuclear power plant equipment monitoring, and can provide earlier warnings of failure than the existing threshold monitoring methods. At the same time, compared with the conventional PCA algorithm, the KPCA algorithm can extract the nonlinear relationship between variables, identify different operating modes of the device, and effectively reduce false alarms. 相似文献