电网技术2016，Vol.40Issue(12)：3761-3767,7.DOI:10.13335/j.1000-3673.pst.2016.12.018
基于二阶锥切负荷模型的大规模交直流混联电网可靠性评估
Reliability Evaluation of Large-scale Hybrid AC/DC Grids Based on SOCP Load Shedding Model
摘要
Abstract
Hybrid AC/DC grids are developing steadily in China.With increasing proportion,their reliability brings greater impact on planning and operation of power systems.Aiming to evaluate reliability of large-scale hybrid AC/DC grids accurately and efficiently,a reliability evaluation method is proposed based on SOCP load shedding model and Monte Carlo simulation.Linear steady-state models of converters and reliability models of individual components in hybrid AC/DC grids are presented.With both active and reactive power in AC systems and converters considered,an optimal load shedding model based on SOCP is proposed.In a case study,the proposed reliability evaluation method is applied in a modified two-area IEEE RTS-96 test system to verify its effectiveness.Numerical tests show that reliability results would be underestimated if not considering impact of hybrid AC/DC system.The proposed method is suitable for practical application in large-scale hybrid AC/DC grid.关键词
交直流混联电网/二阶锥规划/可靠性评估/最优切负荷模型Key words
hybrid AC/DC grid/second-order convex programming/reliability evaluation/optimal load shedding分类
信息技术与安全科学引用本文复制引用
谢海鹏,何剑,别朝红,云雷,易俊,汤涌..基于二阶锥切负荷模型的大规模交直流混联电网可靠性评估[J].电网技术,2016,40(12):3761-3767,7.基金项目
国家电网公司科技项目(XT71-15-001).Project Supported by State Grid Corporation of China Research Program(XT71-15-001). （XT71-15-001）
