搜索结果: 1-6 共查到“动力与电气工程 speed”相关记录6条 . 查询时间(0.069 秒)
深圳换流站、肇庆换流站极控独立快速通信通道（Improvement of Power Supplies for Directly Ultra-Speed Telecommunication at the Pole Control of Shenzhen Converter Station and Zhaoqing Converter Station）
高压直流输电 极控 DUST 直流电源
2010/8/17
介绍兴安直流输电工程深圳换流站、高肇直流输电工程肇庆换流站极控独立快速通信通道（directly ultra-speed telecommunication，DUST）通信电源系统的冗余性改造。基于在DUST电源在设计上的非冗余性，提出了相应的解决方案，并且通过试验进行验证、分析，证明其可行性及必要性。
The Influence of the Rotation Speed of a Rotary Regenerator on Performance
Heat recovery heat exchanger rotary regenerator effciency pressure loss
2009/10/14
The effciency and pressure loss of rotary regenerators were inavestigated experimentally. A rotary regenerator was constructed using aluminium plates and was used in the experiments. The experiments w...
低比转数双吸离心泵回流问题的CFD研究（Simulation of Reverse Flow in Low Specific Speed Double Suction Centrifugal Pump）
双吸离心泵 回流 流场测试
2009/5/22
针对某低比转数双吸离心泵在小流量工况下出现回流的问题，利用CFD技术对双吸泵及吸水室内部流场进行数值模拟研究，并提出定点速度值分析法，模拟流场测试试验中采用的动态探针采样测试系统，对回流问题进行研究。通过对叶轮进口相应测试点在不同流量下的速度变化进行统计分析，发现其变化规律和理论分析结果与以往文献中试验总结的规律变化一致。并根据曲线变化及理论分析结果，提出回流诱发流量点、回流稳定流量点、回流变化区...
MPPT ALGORITHM FOR SMALL WIND SYSTEMS BASED ON SPEED CONTROL STRATEGY
wind system permanent-magnet synchronous generator maximum power point tracking
2010/1/11
This paper presents experimental results of an autonomous low-power wind
energy conversion system (WECS), based on a permanent-magnet synchronous
generator (PMSG) connected directly to the wind turb...
OPTIMAL CONTROL STRUCTURE FOR VARIABLE SPEED WIND POWER SYSTEM
wind power variable speed operation wind modelling
2010/1/12
This paper presents an optimal control structure for variable speed, fixed pitch
wind turbine. The control objective results from the optimization criterion that includes
two contradictory demands: ...
SPEED AND ROTOR FLUX ESTIMATION IN SPEED SENSORLESS CONTROL OF INDUCTION MOTOR
Flux speed and rotor resistance estimation vector control
2010/1/12
The paper compares the performances of several adaptive rotor flux and speed
estimation methods used in speed sensorless vector control of induction motor. First, a
short review of Luenberger, Gopin...