线路同杆并架技术在直流输电系统中应用探讨

Discussion on the double circuit lines used in HVDC transmission system

结合直流输电系统的特点,根据线路同杆并架技术在实际应用中对传统保护造成的一些不良影响,探讨了其应用在直流输电系统中时交直流保护系统应注意的问题。文中的分析和结论,有助于提高采用线路同杆并架技术的交直流混联系统的运行可靠性。

In this paper, combined with the characteristics of HVDC transmission system, based on the negative influences caused by the double circuit lines on the traditional protections, the problems which should be paid attention to when the double circuit lines are used in HVDC transmission system are discussed. All the analysis and conclusions in this paper are valuable to improve the stability and reliability of AC/DC hybrid system.