基于DSP的高压电容型电力设备介质损耗因数测量系统  

Dielectric Loss Factor of High Voltage Capacitive Apparatus Measurement Based on DSP

作　　者：朱宝森[1] 司昌健[2] 陈庆国[1] 王新宇[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150080 [2]吉林省电力科学研究院,吉林长春130021

出　　处：《哈尔滨理工大学学报》2010年第6期21-24,29,共5页Journal of Harbin University of Science and Technology

基　　金：黑龙江省自然科学基金项目(E2004-27);哈尔滨市青年科技创新基金项目(2006RFQXG409)

摘　　要：介质损耗因数是反映电力系统中高压容性设备绝缘状况的重要参数,通过对介损因数的测量可以及时发现电力设备中的绝缘受潮、劣化变质与局部缺陷等问题,从而保证电力系统的安全运行.本文阐述了介质损耗因数测量的基本原理,并且以TI公司TMS320F2812 DSP为控制与处理核心,对系统的各部分进行了设计,包括:信号传感、调理、采集和校准等单元.测试结果表明,本文所设计的硬件系统和算法具有较好的介质损耗因数测量准确度和抗干扰能力等优点.Dielectric loss factor（tanδ） is a very important parameter which can reflect the insulating condition of high voltage capacitive apparatus in power systems.By measuring tanδ,the insulation moistened,deterioration and local defects of the power equipments can be found to ensure the safe operation of power system.In this paper the principle of dielectric loss factor measurement is introduced,and the hardware of the system based on TMS320F2812 is designed,including the units of signal sensing,conditioning,acquisition and calibration.The measuring results show that the designed hardware system and algorithm have the advantages of high tanδ measuring accuracy and high anti-interference ability.

关 键 词：介质损耗因数 测量 TMS320F2812 DSP 

分 类 号：TM930.2[电气工程—电力电子与电力传动]