On-line monitoring technology for the insulation condition of capacitive-type substation equipment

被引：0
|
作者：
Hao, Xi-Wei [1 ]
Zhang, Guan-Jun [1 ]
Zhang, Wei [1 ]
Dong, Ming [1 ]
Liu, Guang-Yan [2 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, 28 Xianning W Rd, Xian 710049, Peoples R China
[2] Shandong Electr Power Res Inst, Jinan 250002, Peoples R China
来源：
PROCEEDINGS OF 2008 INTERNATIONAL CONFERENCE ON CONDITION MONITORING AND DIAGNOSIS | 2007年
基金：
国家高技术研究发展计划(863计划);
关键词：
capacitive-type equipment; on-line monitoring; DSP plus FPGA; high accuracy FFT algorithm; measurement precision;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An on-line monitoring system for the insulation condition of capacitive-type equipment is described. The system adopts a distributed and layered multi-CPU structure, which is composed of the on-site measuring and processing unit, and data management and diagnosis system in the control room of substation. The on-site measuring and processing unit is based on DSP+FPGA hardware platform. Thus, the hardware design is simplified, the system is easy to be modified and updated, and the reliability is also raised. The windows and interpolation algorithm is applied to effectively reduce the influence of asynchronous sampling caused by frequency fluctuation of power system and to increase the precision. Moreover, many and jamming and protection methods are used in hardware and software design for the on-site intense electromagnetic field. Based on the simulation test conducted in the laboratory, the experimental results prove that measurement accuracy of the on-line monitoring system, which can meet the demand of on-site measurement.
引用
收藏
页码：1220 / +
页数：2
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