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    题名 作者 年代 出处 被引量
1An Efficient Summer Operation Scheme for a Thermal Power Plant Air Cooling System based on Electric Peak Shaving显示文摘We proposed a novel efficient operation scheme for a thermal power plant’s air-cooling system based on peak shaving, in order to cope with high ambient temperature in summer. We introduced an absorptiongeneration equipment with water/lithium working pairs into the air cooled condenser(ACC) to reconstruct the traditional thermal power plant, and established a dynamic thermodynamic model adopting Ebsilon code. We studied the thermodynamic performance variation of the reconstructed thermal power plant throughout a 24-hour cycle and found that the fluctuation ratio of the turbine back pressure decreased to 6% from 78%, which is beneficial for the stable and safe operation of the electric power system. The thermal performance improvement benefited from the exploitation of the heat transfer potential of ACC, which realized via cold duty schedule throughout the day, under different ambient temperature conditions. In this system, the generated power was higher at relatively high ambient temperature than that at relatively low ambient temperature, which solved the electricity demand-supply imbalance problem under high ambient temperature. Finally, the same optimization effects for power thermal plants with an indirect air-cooling system were obtained using the same operation scheme.HU Hemin LIANG Shiqiang JIANG Yuyan GUO Yongxian 2020Journal of Thermal Science2020,29,2:2
2基于专家系统的电力设备温升故障诊断研究显示文摘温升变化是反映电气设备工况的重要指标,对电气设备进行温升监测有助于及时发现并排除故障隐患,是智能电网建设的重要任务之一。文章设计了基于遮光式光强度调制的光纤温度传感器,提出了传感器双金属片结构,规划了高压开关柜中传感器安装铺设方案和系统测温光路,进行了传感器的精度分析和故障诊断的专家系统设计。为温升检测提供了一种新的方法。刘源 金立军 张建文 郑元兵 2010机电一体化2010,16,9:1
3The Development of a Knowledgeable Monitoring System for Weapon Equipment显示文摘TheDevelopmentofaKnowledgeableMonitoringSystemforWeaponEquipmentYanShenggang,YangDaoqing,ZhaoSongzhengNorthwesternPolytechnic...Yan Shenggang, Yang Daoqing, Zhao SongzhengNorthwestern Polytechnical UniversityXi’an, 710072, Shaanxi, P.R.China 1998International Journal of Plant Engineering and Management1998,3,1:1
4Analysis of Condition-Based Maintenance for High-Valtage Electric Power显示文摘The development process of high-voltage electric power equipment maintenance was introduced. It is pointed out that the trend of high-voltage electric power equipment maintenance is so called condition-based maintenance. With the development of computer technology and sensors, on-line monitoring of high-voltage electric power equipment has developed rapidly. By introducing the main principle of Schering bridge to measure tanδ, the way of on-line monitoring of high-voltage electric power equipment was explained. Difference methods of on-line monitoring of insulation parameters for 35 kV substation were discussed. Finally, the shortcomings as well as its tendency of on-line monitoring were analyzed.郝进生 2004Journal of China University of Mining and Technology2004,14,2:0
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