摘要
为考虑我国直流特高压输电工程的电磁环境保护问题,调查了国内已有4条±500 kV高压直流输电线路电磁环境。根据问卷调查及实地测量给出了相应的调查结果以及由实测数据统计得出一些典型情况的合成场、离子流场大小及分布规律;通过与国际相关的限值标准比较,得出我国目前直流输电线路合成电场及离子流场对人体安全的结论,可供±800 kV特高压直流输电参考。
To get the EM environment of the HVDC transmissions lines and give some reference for the coming ± 800 kV HVDC transmission system, four of the whole five 52500 kV operating HVDC systems are investigated. The years have been run, the transfer power and the type of the line are different. So plenty of data is gotten during the investigations. The effects of the HVDC on the human nearby are listed in the paper. It can show most of the mankind＇s attitude to the HVDC project. The electric strength and the ionized field above ground are measured. The measurement data of the electric strength and the ionized field of some classic cases are discussed in the paper. By comparing with the limitation of the corresponding criteria, the whole EM environment situation of the HVDC is provided . It has been found that the electric strength is less than the limitation provided by the ICNIRP and the ionized field strength is far below the safe guard. At the end of the paper, it gives some problems about the line that must be done such as the audible noise and the adsorption affect of the ionized field to the dust.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2006年第9期146-148,152,共4页
High Voltage Engineering
关键词
高压直流
电磁环境
合成场
离子流场
输电线路
HVDC EM environment
electric field
ionized field
transsmission line
