摘要
为准确实现对柔性直流输电系统的可靠性评估,首先介绍了柔性直流输电系统的结构并对其进行了子系统的划分,然后基于状态空间法与k/n(G)模型依次给出了柔性直流输电系统元件、子系统和系统的可靠性模型及指标算法,所建模型能够充分反映冷备用和热备用元件对系统可靠性所带来的影响,最后通过在Matlab中编写程序实现了对所建模型和算法的仿真。算例结果表明:元件的冷备用能够显著提高系统的能量可用率,而元件的热备用能够显著降低系统的故障率。
In order to evaluate the reliability of the VSC-HVDC system,its structure and subsystems are introduced.Based on the state space method and k-out-of-n（G） model,the reliability models of components,subsystems and whole system of VSC-HVDC system and indices algorithms are proposed.The proposed models can completely reflect the impact of spare components on system reliability.In the end,the models and relative methods are simulated by Matlab,and results show that cold standby components can improve the system energy availability significantly,while hot ones can reduce failure rate of the system.
出处
《现代电力》
北大核心
2013年第1期8-12,共5页
Modern Electric Power
