检索结果-南通市图书馆

Design and analysis of a high loss density motor cooling system with water cold plates

Global Energy Interconnection 2023年第3期6卷 343-354页

作者： Xin Zhao Haojie Cui Yun Teng Zhe Chen Guangwei Liu School of Electrical Engineering Shenyang University of TechnologyShenyang 110870P.R.China Zhejiang PanGood Power Technology Co. Ltd.Jinhua 321100P.R.China Department of Energy Technology Aalborg UniversityAalborg 639220Denmark

Aiming at reducing the difficulty of cooling the interior of high-density motors,this study proposed the placement of a water cold plate cooling structure between the axial laminations of the motor *** effect of the cooling water flow,thickness of the plate,and motor loss density on the cooling effect of the water cold plate were *** compare the cooling performance of water cold plate and outer spiral water jacket cooling structures,a high-speed permanent magnet motor with a high loss density was used to establish two motor models with the two cooling ***,the cooling effects of the two models were analyzed using the finite element method under the same loss density,coolant flow,and main *** results were as follows.(1)The maximum and average temperatures of the water cold plate structure were reduced by 25.5%and 30.5%,respectively,compared to that of the outer spiral water jacket motor;(2)Compared with the outer spiral water jacket structure,the water cold plate structure can reduce the overall mass and volume of the *** a 100 kW high-speed permanent magnet motor as an example,a water cold plate cooling system was designed,and the temperature distribution is analyzed,with the result indicating that the cooling structure satisfied the cooling requirements of the high loss density motor.

关键词： Cooling system design High loss density motor Water cold plate temperature field analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Research on the principle of space high-precision temperature control system of liquid crystals based Stokes polarimeter

引用

Research in Astronomy and Astrophysics 2021年第1期21卷 97-104页

作者： Xin-Wei Zhang Yang Zhang Jia-Ben Lin Jun-Feng Hou Yuan-Yong Deng Key Laboratory of Solar Activity National Astronomical ObservatoriesChinese Academy of SciencesBeijing100101China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 101408China

The magnetic field is one of the most important parameters in solar physics,and a polarimeter is the key device to measure the solar magnetic *** crystals based Stokes polarimeter is a novel technology,and will be applied for magnetic field measurement in the first space-based solar observatory satellite developed by China,Advanced Space-based Solar ***,the liquid crystals based Stokes polarimeter in space is not a mature ***,it is of great scientific significance to study the control method and characteristics of the *** retardation produced by a liquid crystal variable retarder is sensitive to the temperature,and the retardation changes 0.09°per 0.10℃.The error in polarization measurement caused by this change is 0.016,which affects the accuracy of magnetic field *** order to ensure the stability of its performance,this paper proposes a high-precision temperature control system for liquid crystals based Stokes polarimeter in *** order to optimize the structure design and temperature control system,the temperature field of liquid crystals based Stokes polarimeter is analyzed by the finite element method,and the influence of light on the temperature field of the liquid crystal variable retarder is analyzed *** analyzing the principle of highprecision temperature measurement in space,a high-precision temperature measurement circuit based on integrated operational amplifier,programmable amplifier and 12 bit A/D is designed,and a high-precision space temperature control system is developed by applying the integral separation PI temperature control algorithm and PWM driving heating *** experimental results show that the effect of temperature control is accurate and stable,whenever the liquid crystals based Stokes polarimeter is either in the air or *** temperature stability is within±0.0150℃,which demonstrates greatly improved stability for the liquid crystals based Stokes polarim

关键词： liquid crystals based Stokes polarimeter high-precision temperature measurement space high-precision temperature control temperature field analysis PID control

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Simulation of the Thermal Contact Resistance Characteristics on Rod Fastening Rotor

Simulation of the Thermal Contact Resistance Characteristics...

引用

作者： Yiping Li School of Chemical and Environmental Engineering Shanghai Institute of Technology

The thermal contact resistance model of the rod fastening rotor is improved, which can be more suitable for the engineering condition. By means of numeric simulation, the relationships between characteristics of the heat transfer between contact interfaces and the pre-tightening force of the tie rod, the surface roughness and the temperature of the contact interface are revealed intuitively. The simulation results show that the coefficient of contact heat transfer between the contact interfaces will increases with the pre-tightening pretension of the tie rod, will decreases with the increase of the surface roughness, and will increases with the increase of the surface temperature. It is also shown that the thermal contact resistance between the contact interfaces will have an important influence on the overall temperature distribution and heat transfer of the rod fasten rotor, and the thermal contact resistance between the interfaces must be considered when the temperature field distribution of the rod fastening rotor are accurately researched.

关键词： rod fastening rotor thermal contact resistance numeric simulation temperature field analysis

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：