基于LabVIEW的电能质量扰动信号发生器设计  

Design of the signal generator based on LabVIEW for power quality disturbances

作　　者：任明宇 陈万米[1] 魏士皓 Ren Mingyu;Chen Wanmi;Wei Shihao(School of Mechatronic Engineering and Automation,Shanghai University,Shanghai 200072,China)

机构地区：[1]上海大学机电工程与自动化学院

出　　处：《电子测量技术》2018年第22期129-135,共7页Electronic Measurement Technology

摘　　要：电力系统中电能质量问题对其敏感设备造成的危害日益严重,用户对电能质量要求越来越高。现阶段模拟电能质量扰动信号源的主要方法是基于单片机或FPGA的方法,这种方法存在设计复杂、人机交互不够友好等问题。根据电能质量的特性参数,给出一种基于虚拟仪器的电能质量扰动信号源的总体结构、硬件设计与软件设计。选用NI ELVIS II和DSP TMS320F2812开发板产生扰动信号,且通过LabVIEW设计的上位机界面进行信号显示与输出。系统测试表明,利用虚拟仪器技术设计的两套扰动信号源具有人机界面友好、易于操作及扩展性强等特点,具有一定的工程应用价值。Power quality problems in power system is sensitive to the equipment to the serious effects and user demands on power quality is getting higher and higher. At present, the main method to simulate the power quality disturbance signal source is based on the single-chip microcomputer or FPGA method, which has some problems such as complicated design and unfriendly man-machine interaction. According to the characteristic parameters of power quality, the overall structure, hardware design and software design of a power quality disturbance signal source based on virtual instrument are presented. NI ELVIS II and the development boards of DSP TMS320 F2812 were selected to generate disturbance signals, and signals were displayed and output through the upper computer interface designed by LabVIEW. The system test shows that the two sets of disturbance signal sources designed by virtual instrument technology have the characteristics of friendly human interface, easy operation and strong expansibility, and have certain engineering application value.

关 键 词：LABVIEW NI ELVIS II DSP 信号发生器 RC滤波器 

分 类 号：TM743[电气工程—电力系统及自动化]