期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Identification of High-Risk Scenarios for Cascading Failures in New Energy Power Grids Based on Deep Embedding Clustering Algorithms
1
作者 Xueting Cheng Ziqi Zhang +1 位作者 Yueshuang Bao huiping zheng 《Energy Engineering》 EI 2023年第11期2517-2529,共13页
At present,the proportion of new energy in the power grid is increasing,and the random fluctuations in power output increase the risk of cascading failures in the power grid.In this paper,we propose a method for ident... At present,the proportion of new energy in the power grid is increasing,and the random fluctuations in power output increase the risk of cascading failures in the power grid.In this paper,we propose a method for identifying high-risk scenarios of interlocking faults in new energy power grids based on a deep embedding clustering(DEC)algorithm and apply it in a risk assessment of cascading failures in different operating scenarios for new energy power grids.First,considering the real-time operation status and system structure of new energy power grids,the scenario cascading failure risk indicator is established.Based on this indicator,the risk of cascading failure is calculated for the scenario set,the scenarios are clustered based on the DEC algorithm,and the scenarios with the highest indicators are selected as the significant risk scenario set.The results of simulations with an example power grid show that our method can effectively identify scenarios with a high risk of cascading failures from a large number of scenarios. 展开更多
关键词 New energy power system deep embedding clustering algorithms cascading failures
下载PDF
Bi/Bi_2O_3 sensor for quantitation of dissolved oxygen in molten salts
2
作者 huiping zheng Hongqiang NIAN +3 位作者 Jinfeng XIA Guohong ZHOU Danyu JIANG Qiang LI 《Journal of Advanced Ceramics》 SCIE CSCD 2018年第1期1-4,共4页
To quantify the oxygen content in molten salts, we examined the performance of an yttria-stabilized zirconia solid electrolyte oxygen sensor with a Bi/Bi203 reference electrode, focusing on its output accuracy. When t... To quantify the oxygen content in molten salts, we examined the performance of an yttria-stabilized zirconia solid electrolyte oxygen sensor with a Bi/Bi203 reference electrode, focusing on its output accuracy. When the above sensor was tested in a flow of gas with known oxygen partial pressure, P02, a linear relationship between lgp% and the electromotive force (EMF) was observed, and the correlation slope exhibited a positive deviation from Nernstian behavior. EMF measurements performed in molten NaC1-KC1 indicated that the oxygen content of this salt mixture increased with increasing oxygen partial pressure in the covering gas, in agreement with Henry's law. Moreover, the EMF exhibited a linear decrease with increasing melt temperature of molten NaC1-KC1, in agreement with the theoretical model. Finally, a relationship between the structure of molten NaC1-KC1 and its oxygen diffusion behavior was established. As a result, the developed sensor was demonstrated to be well suited for determining the oxygen content of molten salts. 展开更多
关键词 molten salt oxygen sensor Bi/Bi203 oxygen content
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部