高压电源温度场的仿真分析与检测实现

发布时间：2018-03-21 16:11

本文选题：功率电源　切入点：分析与检测　出处：《电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：功率电源设备的设计开发日益趋向小型化、通用化,功率密度的提高使得设备内部更加紧凑,选择合理的散热方式,解决电子设备中热量的散发,让高发热量器件保持在其容许的温度范围以下是保证功率电源可以正常工作的必要条件,因此功率电源开发的前期需要考虑诸多因素,如何能够在满足电性能要求的目标下使得结构更加紧凑,器件布局和风道更加合理,散热更加有效,功率电源的长时间工作更加可靠,使得给出图表或者数据参数更能接近实际参数,更加有助于功率电源设备的生产,有效的减少资源浪费,节约时间,增强设备的更新换代,有助于提高功率电源设备的市场竞争力。本论文开展了高压电源温度场的仿真分析与检测的研究,采用ANSYS有限元商用软件进行了高压电源内部温度场的热仿真模拟计算,完成了高压电源样品硬件设计与热分布设计。模拟和实验数据表明,采用本文的优化热设计后,使得某高压电源设备内部温度场分布更均匀合理,改进了电源内部器件的布局,优化改善了风道设计与,使得高压变压器部件温升较未优化前降低了10摄氏度,滤波电容部件温升降低了11摄氏度,IGBT模块温升控制在允许范围之内,并获得实验验证。利用图表进行对比分析,比理论数据更有直观说服力。本论文还设计了温度检测系统,利用VB软件绘制了高压电源的控制界面,编写了温度检测的控制程序,结合上位机、TMS320F28335控制器、TMP100温度传感器和保护电路形成检测系统,该系统具有原理简单易懂,操作方便快捷,界面简洁等特点。文中利用分析给出关键器件的表面温度分布云图,结合关键件的特性,为其设计了专门的保护电路,确保实验使用过程中不损坏关键器件。利用样机检测来验证仿真的理论数据的正确性,通过实测数据修正仿真设计参数。
[Abstract]:The design and development of power supply equipment increasingly miniaturization, universal, the increase of the power density makes the equipment more compact, reasonable choice of heat, solve the heat in electronic equipment, make high heat in the temperature range of the device to keep the admissible following is the necessary condition to ensure the power supply can work normally, so the need to the development of power supply consider many factors, how to meet the performance requirements of electricity in the target of making the structure more compact, the layout of the device and the air duct is more reasonable and more effective heat dissipation, long time working power source is more reliable, the graph or data parameters can be closer to the actual parameters are more useful in power supply equipment the production, reduce the waste of resources, save time, enhance the upgrading of equipment, help to improve the market competitiveness of power supply equipment. This paper carried out simulation analysis and detection of high voltage power supply of the temperature field, thermal simulation calculation of internal temperature field of high voltage power supply using ANSYS finite element software simulation, completed the design and thermal distribution of high voltage power supply sample hardware. Simulation and experimental data show that the optimal thermal design of this paper, the internal temperature of a high voltage power supply equipment field distribution is more uniform and reasonable, improve the internal power device layout, optimize the design of the wind and the parts of high voltage transformer temperature rise than before optimization is reduced by 10 degrees Celsius, the temperature rise of parts filter capacitor is reduced by 11 degrees Celsius, under control of IGBT module and temperature rise. Experimental results were analyzed. The use of charts, data more intuitive than the theory of persuasion. This paper also designs the temperature detection system, drawing the high voltage power source controlled by VB software System interface, control program of temperature detection, combined with PC, TMS320F28335 controller, TMP100 temperature sensor and protection circuit formation detection system, the system has simple principle, convenient operation, simple interface. The image features of the surface temperature distribution analysis of key components is given in this paper, combined with the characteristics of the key parts of the design. The special protection circuit for the key to ensure the device does not damage experimental use. To verify the correctness of the theoretical simulation data using the prototype test, the measured data correction simulation of design parameters.

【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN86

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