【作者】 金秀月；

【导师】 韩民晓；

【作者基本信息】 华北电力大学（北京） ， 电力系统及其自动化， 2004， 硕士

【摘要】 VSI型电力扰动发生装置主要用于用户电力设备电能质量相关问题的评估与检测。本文提出了各种电路拓扑结构，并分析优缺点，选择了基于电压源型逆变器的扰动发生装置的拓扑结构与工作原理。通过仿真计算，解决了调制算法、控制方式及低通滤波设计等技术问题。说明了电压凹陷、三相不平衡、电压波动与闪变、谐波及频率变动的发生过程，并在这些基础上给出了所实现装置的参数与特征。论文制作了简单、便于操作的人机界面，完成与下位机的通信的同时可进行后台数据分析。最后以变频器经受电压凹陷特性的研究示例说明该装置的应用价值。更多还原

【Abstract】 The Interruption Generator based on the voltage source inverter (VSI) is mostly used to detect and evaluate the power quality problems of the electric equipment. In this paper, various circuits are proposed, and the characters of which are made clear, as the conclusion, the Interruption Generator based on the voltage source inverter (VSI) is selected. By emulation, some technique problems have been figured out: the modulation arithmetic, the control mode and the design of low-pass filter. The author illuminates the generating process and technique of some power quality problems, such as voltage sag, unbalance, voltage fluctuation, flicker, harmonic as well as frequency deviation. Based on all of these, the parameter and character of the prototype is proposed. A simple and flexible interface is offered, completing the communication between the PC and the controller. The experiment of researching character of the transducer during voltage sag is carried through, which shows the application value.更多还原