【作者】 冯晓星；

【导师】 鲁昌华；

【作者基本信息】 合肥工业大学 ， 信号与信息处理， 2007， 硕士

【摘要】 虚拟仪器技术充分利用计算机强大的图形界面和数据处理能力，提供对测量数据的分析和显示功能。它功能强、精度高、实时性好、具有良好的人机界面。把虚拟仪器技术应用于测试可充分发挥计算机的能力，有强大的数据处理功能，可以创造出功能更强的仪器。本文旨在利用虚拟仪器技术设计可控智能功率模块的正弦脉宽调制信号源，并利用其对智能功率模块测试系统进行初步研究，为生产智能功率模块或直接选用其生产变频产品的厂家提供可借鉴的测试方法，促进智能功率模块的国产化。本文所做的主要研究工作如下：●综述了电力电子器件和变频调速技术的发展概况，深入研究了智能功率模块模块的结构和内部控制原理等相关知识。●从多方面阐述了脉冲宽度调制技术；并对脉冲宽度调制控制中的正弦脉宽调制法进行详细的研究。脉冲宽度调制技术是变频控制中研究热点，可以极其有效地进行谐波抑制，在频率，效率各方面有着明显的优点，使逆变电路的技术性能与可靠性得到明显的提高。●重点研究了智能功率模块的控制信号源，采用平均对称规则采样算法，运用图形化编程语言LabVIEW设计了虚拟正弦脉宽调制控制信号源；该信号源可产生可控智能功率模块的三相六通道且具有智能功率模块自保护功能的正弦脉宽调制信号。输出信号的载波频率在100Hz—10KHz范围内连续可调。●研究了智能功率模块模块的待测参数的特性及测试条件，初步设计了基于数据采集卡的基本型现代测试系统；更多还原

【Abstract】 The Virtual Instruments (VI) technology sufficiently adopts the great power in image and data processing of computer, supplying data analysis and display. It possesses powerful function, high precision, nice real-time quality and well interface. The Application of VI to test could exert the ability of computer and create more powerful instruments. This paper aimed at the design of PWM(Pulse Width Modulation) signal source based on VI, which can control IPM( Intelligent Power Modulation) and the test system of IPM, in order to find out a so feasible test method that the companies producing IPM can efficiently use it. Bring on some Chinese companies can make IPM themselves.The main work and contributions of dissertation are summarized as follows:To begin with, we summarized the development of power electronic devices and frequency conversion technology, and deeply researched device characteristics and control theory of IPM.Then we expounded PWM technology in many ways. PWM is the research hotspot on frequency conversion technology, which is effective in harmonic suppressing and has apparent advantages in frequency, efficiency and so on. Thus it improves the performance and reliability of inverse circuit greatly. SPWM(Sinusoidal PWM) modulation is particularly researched next.Furthermore, we mainly researched the signal generator which can generate SPWM signal to control IPM and be based on average-symmetry- sampling algorithm and VI environment. This signal has three phases and six chances which can be used to control IPM. The frequency range of this signal is from 100Hz to 10KHz.Last but not least, we systemically studied the character of IPM, and what condition is the character of IPM can be correctly measured. Primarily introduced the test system of IPM that based on data acquisition card ,which can measure the parameter of IPM through analogy the data acquired by data acquisition card.更多还原