特高压交直流输电系统可靠性分析Analysis on Reliability of UHVAC and UHVDC Transmission Systems
曾庆禹;
摘要(Abstract):
根据1 000 kV/800 kV交/直流输电系统结构建立基于确定性指标的输电系统串并联可靠性模型,提出评估方法,以相关的元器件和子系统实际运行可靠性指标评估两种输电系统可靠性,比较分析两种输电系统可靠性的特点,讨论两种输电系统强迫停运对电网运行稳定性的影响以及保持电网运行稳定措施的经济性。分析结果表明:1 000 kV大容量远距离交流输电系统的可靠性明显高于800 kV直流输电系统;1 000 kV双回路交流输电系统,800 kV直流输电系统按实际可利用功率运行,"单极闭锁联动调制"稳定控制可显著提高电力系统稳定性。
关键词(KeyWords): 1000kV;800kV;输电系统;可靠性;模型;评价方法;稳定措施;经济性
基金项目(Foundation):
作者(Author): 曾庆禹;
Email:
DOI: 10.13335/j.1000-3673.pst.2013.10.033
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