【作者】 孔祥艳；

【导师】 李云飞；

【作者基本信息】 苏州大学 ， 计算机应用技术， 2008， 硕士

【摘要】 随着变频调速技术在各类调速传动装置中的广泛应用,变频器调速装置取代直流调速装置已成为必然趋势,各行各业对变频器的需求量越来越大。世界上一些著名的公司(如ABB、西门子、施耐德等)都生产性能优良的变频器,作为变频器生产过程中的关键设备的变频器测试系统,其应用前景非常好,因此变频器测试系统的研制有着非常高的应用价值。传统变频器测试系统存在着体积庞大、结构复杂、工作效率低等诸多缺点,应用新的技术设计和开发变频器测试系统颇受关注,但成功应用的实例还较少,本课题是根据用户的应用需求运用虚拟仪器技术开发变频器测试系统。基于虚拟仪器的变频器测试系统由硬件和软件两部分组成。本文在介绍了硬件构造,包括电源部分、IPC(Industrial Personal Computer,简称工控机)部分、仪器仪表库和负载部分设计的基础上,重点叙述了虚拟仪器软件的设计与实现,详细介绍了几项比较重要的测试内容,并给出了实现流程图。在设计中,针对用户的需求采用了虚拟仪器4层逻辑架构,有效地减小了软件对硬件环境和应用对象的依赖性,增强了软件的通用性。对开发过程中遇到的主要的技术难点问题,本文都给出了可行的解决方法并进行了详细的介绍。该课题于2008年1月通过了用户的验收,并投入使用,应用结果表明系统工作效率高、稳定性好、安全可靠。更多还原

【Abstract】 As VVVF(Variable Voltage and Variable Frequency)technology is extensively used in kinds of velocity modulation transmission devices, DC speeder will certainly be replaced by frequency conversion speeder. The demanding for inverter is becoming more and more such that many famous companies (such as ABB, Siemens, Schneider) are working on producing the high-quality inverter. As a key part of the inverter production, the inverter test system has a good application potential. Therefore, the research on inverter test system has great application value. The traditional inverter test system has many weaknesses, for example, huge bulk, complicated structure, lower efficiency et al. Although a lot of attention has been paid to the research and development of inverter test system using some new technology, the successful instance is rare. According to the requirements of customer, this project is to design inverter test system using virtual instrument.Our inverter test system is composed of two parts: hardware and software system. We first introduce the hardware structure design, including the design of source power, IPC (Industrial Personal Computer), instrument and meter library, loaded part. We emphasize on the design and application of the virtual instrument software. Moreover, we give detailed description of important tests, and present the corresponding implementation flow chart. According to the requirements of customer, we present four layer logic architecture of virtual instrument in the software design, which greatly strengthens the universal use of the software. It also greatly reduces software’s dependence on hardware environment and application objects. For the difficult problems encountered in the developing, we give detailed feasible solutions. The project passed the customer test in January 2008, and has already been used in application. The result of the application shows that the system has higher efficiency, better stability and more reliable security.更多还原