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.
出处
《哈尔滨理工大学学报》
CAS
北大核心
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)
