基于PCI总线的直流系统接地故障检测装置的设计  

Design of DC System Grounding Fault Detecting Device Based on PCI Bus

作　　者：李冬辉[1] 王斌[1] 

机构地区：[1]天津大学电气与自动化工程学院,天津300072

出　　处：《低压电器》2006年第11期53-57,共5页Low Voltage Apparatus

摘　　要：以往的直流系统接地故障检测装置大都是基于单片机设计的,而此类型的装置难以实现一些先进的复杂的检测算法,针对该情况,在详细介绍PC I 9052控制芯片和硬软件设计的基础上,提出了基于PC I总线结合PC机设计的接地故障检测装置的设计方案,克服了过去的单片机资源有限的缺点,实现了基于小波变换的先进检测方法,使直流系统的接地故障诊断的准确性有了很大提高。The design of majority of the conventional grounding fault detection devices in DC systems were based on single-chip microcomputer （SCM） and lacking the ability to carry out advanced and complicated algorithms. Based on detailed introduction of the software design and hardware configuration of PCI 9052 control chip, combining PCI bus and PC design, the design scheme of grounding fault detection device was proposed. Overcoming the limitation of SCM, implementing the advanced method based wavelet, the diagnostic accuracy of DC grounding fault detection system was upgraded greatly.

关 键 词：直流系统 PCI总线 小波 接地故障 

分 类 号：TP773[自动化与计算机技术—检测技术与自动化装置] TP273.5[自动化与计算机技术—控制科学与工程]