电力半导体器件风冷散热系统实验装置设计
发布时间：2019-05-06 14:16
【摘要】：随着电子行业的发展,电力半导体器件向着小型化、紧凑化、高性能的方向发展,使得单个器件热流密度和表面温度越来越高,所以,研究功率半导体器件的散热有重要意义。单纯依靠理论计算的方法难以获得半导体器件较为精确的性能指标,需要通过实验来研究其散热性能。本文根据电力半导体器件相关国家标准及工程实际要求,设计出了一套自动化程度高、测量准确、操作简便的电力半导体器件风冷散热系统实验装置,其包括风道设计、风机选型及空气加热器设计、测量系统设计和自动控制系统设计。本文根据所需测量半导体散热器的特性,设计计算出测试风道,包括前稳定段、测试段、后稳定段,其中测试段可以旋转一定角度。合理选型并布置各类传感器、空气加热器、风机以及配套的变频器和调功调压器,使达到测试要求。设计自动控制系统对实验平台进行控制,并设置“自动”和“手动”两种操作模式,实现自动控制试验段进口风温,风道内风速,并自动调节参数。为此选择西门子S7-200系列PLC作为本测试平台的下位机,应用STEP 7Micro/WIN编程软件创建相应项目,以工控机为上位机,通过编程电缆与下位机连接。工控机装有组态王软件,能够在软件中控制测试平台的启停,应用PID调节,可以对风机频率和加热器功率进行控制和调节,软件能够实时显示、存储各种参数曲线及数据,具有对历史数据进行查询、分析等智能功能,同时软件还有扩展功能,以适应以后更高的设计要求。最后,对测试平台的实验装置进行调试,通过对调试过程出现的PLC干扰问题的进行分析,给出解决方案。以热管散热器为例,依据传热学基础理论,建立传热性能的理论模型,分析计算热管和肋片的传热热阻,为散热器的实验研究奠定理论基础。应用测试平台分别对典型的型材散热器和热管散热器的热阻流阻进行测试,与相关文献结论相近,由此验证本设计的准确性及合理性。
[Abstract]:With the development of electronic industry, power semiconductor devices are developing towards miniaturization, compactness and high performance, which makes the heat flux density and surface temperature of single device more and more high. Therefore, it is of great significance to study the heat dissipation of power semiconductor devices. It is difficult to obtain the more accurate performance index of semiconductor devices by the method of theoretical calculation, so it is necessary to study the heat dissipation performance of semiconductor devices by experiments. In this paper, according to the relevant national standards of power semiconductor devices and the practical requirements of engineering, a set of high automation, accurate measurement, simple operation of the power semiconductor device air-cooled cooling system experimental device is designed, which includes the design of air duct. Fan selection and air heater design, measurement system design and automatic control system design. According to the characteristics of the semiconductor radiator needed to be measured, the test duct is designed and calculated, including the front stability section, the test section and the post stability section, in which the test section can be rotated at a certain angle. Reasonable selection and arrangement of all kinds of sensors, air heaters, fan, frequency converter and power regulator to meet the test requirements. The automatic control system is designed to control the experimental platform, and two operating modes of "automatic" and "manual" are set up to automatically control the inlet air temperature and the wind speed in the air duct of the test section, and adjust the parameters automatically. For this reason, the Siemens S7x200 series PLC is chosen as the lower computer of the test platform, and the corresponding project is established by using STEP 7Micro/WIN programming software. The industrial computer is used as the upper computer and connected with the lower computer through the programming cable. The industrial control computer is equipped with configuration King software, which can control the start and stop of the test platform in the software. Applying PID regulation, the frequency of fan and heater power can be controlled and adjusted. The software can display and store all kinds of parameter curves and data in real time. It has intelligent functions such as querying and analyzing historical data. At the same time, the software also has extended functions to meet the higher design requirements in the future. Finally, the experimental equipment of the test platform is debugged. Through the analysis of the PLC interference in the debugging process, the solution is given. Taking the heat pipe radiator as an example, according to the basic theory of heat transfer, the theoretical model of the heat transfer performance is established, and the heat transfer resistance of the heat pipe and fin is analyzed and calculated, which lays a theoretical foundation for the experimental research of the radiator. The thermal resistance of the typical profile radiator and heat pipe radiator is tested by using the test platform, which is similar to the conclusion of the related literatures, thus validating the accuracy and rationality of the design.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN303
[Abstract]:With the development of electronic industry, power semiconductor devices are developing towards miniaturization, compactness and high performance, which makes the heat flux density and surface temperature of single device more and more high. Therefore, it is of great significance to study the heat dissipation of power semiconductor devices. It is difficult to obtain the more accurate performance index of semiconductor devices by the method of theoretical calculation, so it is necessary to study the heat dissipation performance of semiconductor devices by experiments. In this paper, according to the relevant national standards of power semiconductor devices and the practical requirements of engineering, a set of high automation, accurate measurement, simple operation of the power semiconductor device air-cooled cooling system experimental device is designed, which includes the design of air duct. Fan selection and air heater design, measurement system design and automatic control system design. According to the characteristics of the semiconductor radiator needed to be measured, the test duct is designed and calculated, including the front stability section, the test section and the post stability section, in which the test section can be rotated at a certain angle. Reasonable selection and arrangement of all kinds of sensors, air heaters, fan, frequency converter and power regulator to meet the test requirements. The automatic control system is designed to control the experimental platform, and two operating modes of "automatic" and "manual" are set up to automatically control the inlet air temperature and the wind speed in the air duct of the test section, and adjust the parameters automatically. For this reason, the Siemens S7x200 series PLC is chosen as the lower computer of the test platform, and the corresponding project is established by using STEP 7Micro/WIN programming software. The industrial computer is used as the upper computer and connected with the lower computer through the programming cable. The industrial control computer is equipped with configuration King software, which can control the start and stop of the test platform in the software. Applying PID regulation, the frequency of fan and heater power can be controlled and adjusted. The software can display and store all kinds of parameter curves and data in real time. It has intelligent functions such as querying and analyzing historical data. At the same time, the software also has extended functions to meet the higher design requirements in the future. Finally, the experimental equipment of the test platform is debugged. Through the analysis of the PLC interference in the debugging process, the solution is given. Taking the heat pipe radiator as an example, according to the basic theory of heat transfer, the theoretical model of the heat transfer performance is established, and the heat transfer resistance of the heat pipe and fin is analyzed and calculated, which lays a theoretical foundation for the experimental research of the radiator. The thermal resistance of the typical profile radiator and heat pipe radiator is tested by using the test platform, which is similar to the conclusion of the related literatures, thus validating the accuracy and rationality of the design.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN303
【相似文献】
相关期刊论文 前10条
1 管原良孝,钱文良;电力半导体器件的开发近况[J];电力牵引快报;1995年11期
2 王占山;电力半导体器件的发展及应用[J];山东电子;1995年01期
3 李柏龄;电力半导体器件的发展[J];半导体技术;2001年06期
4 ;第四届中国电力电子论坛——新型电力半导体器件及其应用装置失效分析初探邀请函[J];电力电子;2004年04期
5 王正元;;电力半导体器件运行失效的若干基本问题的讨论[J];电力电子;2004年06期
6 王效平;;电力半导体器件的发展进入微电子加工领域[J];微处理机;1988年01期
7 张凤，
本文编号：2470238
本文链接：https://www.wllwen.com/kejilunwen/dianzigongchenglunwen/2470238.html
