| 引用本文: | 马静,马伟,王增平.基于联络关系的主变故障负荷转供方案[J].电力系统保护与控制,2014,42(19):1-7. |
| MA Jing,MA Wei,WANG Zeng-ping.Power restoration scheme for main transformer fault based on the interconnection relationship[J].Power System Protection and Control,2014,42(19):1-7 |
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| 摘要: |
| 针对主变故障后负荷转供过程中联络线路容量不足、主变过载等问题，提出了一种基于联络关系的主变故障负荷转供方案。该方案在配电网正常运行情况下，利用简化的网络拓扑关系形成主变联络关系矩阵及负荷转移区域，当主变因故障或检修退出运行时，基于负荷转移小区容载比对故障主变负荷进行“按需分配”。在分配的过程中，充分计及了联络线路及主变容量约束条件，分别设计了次级负荷转供策略及二次转供策略。算例结果表明，该方案有效地提高了配电网设备利用率和负荷转供能力，同时，使负荷转供后配电网中的负荷分布更加均衡。 |
| 关键词: 负荷转移能力 供电恢复 主变故障 容载比 设备利用率 |
| DOI：10.7667/j.issn.1674-3415.2014.19.001 |
| 分类号: |
| 基金项目:国家重点基础研究发展计划项目(973项目)(2012CB215200)；国家自然科学基金项目(51277193)；中央高校基本科研业务费专项资金项目(2014ZZD02)；教育部留学回国人员科研启动基金资助项目(教外司留[2011] 1139号)；河北自然科学基金项目(E2012502034)；北京市科技新星支持计划(Z141101001814012)；北京市优秀人才支持计划(2013B009005000001)；霍英东教育基金(141057) |
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| Power restoration scheme for main transformer fault based on the interconnection relationship |
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MA Jing, MA Wei, WANG Zeng-ping
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State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources (North China Electric Power University), Beijing 102206, China
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| Abstract: |
| In order to solve the problems such as insufficient interconnection capacity, overload of main transformer and so forth during the power supply recovering process after main transformer fault, this paper presents a novel power restoration scheme based on interconnection relationship capability. This scheme firstly forms main transformer interconnection matrix and conforms load transfer area by using simplified network topology relationship. When the main transformer is out of operation due to failure or maintenance, the load of faulted main transformer is distributed basing on the capacity-load ratio of the load transfer district. In the process of distribution, sub-load transfer strategy is proposed aiming at the constraint of interconnection capacity and secondary transfer strategy aiming at the constraint of main transformer capacity. Simulation results verify that the scheme can effectively improve the equipment utilization ratio of distribution network and load transfer capability, besides, the load distribution is more balanced. |
| Key words: load transfer capability power restoration main transformer fault capacity-load ratio equipment utilization ratio |
