搜索结果: 1-10 共查到“动力与电气工程 phase”相关记录10条 . 查询时间(0.093 秒)
The inner structural characteristics of non-minimum phase DC-DC converters pose a severe limitation in direct regulation of voltage when addressed from a control perspective. This constraint is reflec...
华南理工大学流体力学与传热课件CHAPTER12 Heat transfer to fluids without phase change
华南理工大学 流体力学与传热 课件 CHAPTER12 Heat transfer to fluids without phase change
2014/7/25
华南理工大学流体力学与传热课件CHAPTER12 Heat transfer to fluids without phase change。
同塔同窗同相序紧凑型输电线路潜供电流与恢复电压研究（Research on the Secondary Arc Current and Recovery Voltage of Two Compact Circuits with the Same Array of Phase in One Pylon Window）
同塔同窗同相序紧凑型 潜供电流 恢复电压
2010/8/17
从同塔同窗同相序紧凑型输电线路的潜供电流和恢复电压的产生机理出发，对该输电方式的潜供电流和恢复电压特性进行了理论分析与仿真计算。结果表明，采用同塔同窗同相序排列有利于降低线路的潜供电流与恢复电压；在合适的高抗及中性点小电抗配置下，该输电方式的潜供电流及恢复电压可被抑制在较小的数值范围之内。
云广直流工程锁相环功能分析及仿真研究（Analysis and Simulation on Phase Lock Loop Function Used in Yunnan-Guangdong UHVDC Project)
特高压直流输电 锁相环 PSCAD/EMTDC
2010/8/17
介绍了云广特高压直流输电工程锁相环的实现原理，分析了锁相环中几个重要模块的功能和作用；利用PSCAD/EMTDC电磁暂态仿真程序建立了云广工程锁相环模型，研究了锁相环在交流母线频率阶跃、单相故障和三相故障等多种暂态情况下的响应特性。
AN INCREASE OF HYDRO-AGGREGATE'S INSTALLED POWER AND EFFICIENCY FACTOR BEFORE THE REVITALIZATION PHASE
hydro-aggregates power increasing calculations
2009/10/13
The revitalization of hydro-aggregates should be performed before the life-time expiry of most their parts. But, as in our practice aggregates have been under exploitation much longer then theoretical...
SIMULATIONS OF THE KETTLE REBOILER SHELL SIDE THERMAL-HYDRAULICS WITH DIFFERENT TWO-PHASE FLOW MODELS
kettle reboiler thermal-hydraulics numerical simulation
2009/10/13
A CFD approach is presented for the simulation and analyses of the kettle reboiler shell side thermal-hydraulics with two different models of two-phase flow - the mixture and two fluid model. The mixt...
配气相位对天然气发动机燃烧和排放的影响（Investigation of Effect of Cam Phase on Combustion and Exhaust Characteristics of CNG Engine）
天然气发动机 配气相位 燃烧 排放
2009/9/2
对改装为火花点火式天然气发动机的柴油机配气机构的配气相位进行了优化设计，并在发动机台架上进行了对比试验，研究了配气相位对发动机燃烧及排放的影响。试验结果表明：随着气门重叠角的减小，HC和NOx排放量有所降低，但高转速时过小的气门重叠角，不利于HC排放量的降低；气门重叠角的减小使得缸内可燃气体浓度降低，在抑制NOx生成的同时，也损失了部分功率，因而在降低有害排放的同时，还要兼顾动力性；随着转速的升高...
期刊信息
篇名
Phase Evolution, Texture Behavior and Surface Chemistry of Hydrothermally Derived Scandium (Hydrous) Oxide Nanostructures
语种
英文
撰写或编译
撰写
作者
Ya-Wen Zhang,Jian-Hua-Liu,Rui Si,Zheng-Guang Yan,and...
期刊信息
篇名
Micro-description of the solute-field and the phase-field model for isothermal phase transition in Binary Alloy
语种
英文
撰写或编译
作者
H.M.Ding,L.L.Chen,R.X..Liu
第一作者单位
刊物名称
ACTA METALLURGICA SINICA
页...
期刊信息
篇名
Thermal stability, phase and interface uniformity of Ni-Silicide formed by Ni-Si solid-state reaction
语种
英文
撰写或编译
作者
屈新萍,蒋玉龙,茹国平等
第一作者单位
刊物名称
Thin Solid Films
页面
462-463, 146-150 (2004).
出版日期
...