葛南同杆并架直流工程可靠性研究  

Study of Reliability for the Double Circuits on the Same Tower of Ge-Nan DC Project

作　　者：周静[1] 马为民[1] 石岩[1] 韩伟[1] 

机构地区：[1]北京网联直流工程技术有限公司,北京100005

出　　处：《高电压技术》2007年第1期152-155,共4页High Voltage Engineering

摘　　要：目前国内尚无同杆并架双回直流的工程,为了研究同杆并架双回直流对单回直流可靠性的影响程度,利用马尔可夫原理理论分析了同杆并架直流输电系统的可靠性,通过系统各状态之间的转移关系进行了理论计算,并利用riskspectrum软件通过建模来计算3种重要的可靠性指标。结果表明,两回直流采用同杆并架的型式对单回直流输电的可靠性指标的影响很小,故采用同杆并架输送两回直流既可提高输送容量,又不影响单回直流输电系统的可靠性。with the development of urbanization in China, the land for constructing power transmission corridors becomes limited, in order to improve the transmission capacity of the right of way and increase the utilization efficiency of land resources. It is urgent to innovate the grid construction technology and develop the technology of the double circuit lines on the same power, There is no double circuit lines on the same tower of the DC project in nation until now, so we have to do some research for the double circuits on the same power, the reliability is one of the most important research intent, if the energy availability, the Monopole unplanned outage times and Bipole unplanned outage limes of the single circuit line are affected small under the condition of the double circuit lines on the same tower, we will use the double circuits on the same power to transmission capability for HVDC project. The theory analysis and software calculation are used to study the reliability of the double circuits on the same powe for HVL~ project in this paper, the result show that the double circuits on the same power of HVDC transmission system not only raise the transmission capability, but also not affect the reliability of the single circuit DC line, namely profit both parties.

关 键 词：直流输电 可靠性 同杆并架 能量可用率 双极强迫停运率 单极强迫停运率 

分 类 号：TM732[电气工程—电力系统及自动化]