| 引用本文: | 陈 峰,江道灼,周 洋,范 宇,郭易木,陈 可.基于故障电流控制的新型UPFC-FCL设计[J].电力自动化设备,2015,35(12): |
| CHEN Feng,JIANG Daozhuo,ZHOU Yang,FAN Yu,GUO Yimu,CHEN Ke.Design of UPFC-FCL based on fault current control[J].Electric Power Automation Equipment,2015,35(12): |
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| 摘要: |
| 针对统一潮流控制器（UPFC）的系统短路保护问题，提出了一种基于故障电流控制的新型限流式统一潮流控制器（UPFC-FCL）拓扑结构。通过在限流电抗支路上投切耗能电阻，配合UPFC并联侧控制，限制线路故障电流的上升速率和幅值并保护设备安全。详细阐述了拓扑结构与工作原理，并进行了数学建模和关键参数设计。仿真结果表明，该新型UPFC?鄄FCL能较精确地控制故障电流并可灵活调整限流值以配合继电保护电流整定值和断路器遮断电流，故障消除后恢复迅速且适用于多次故障和自动重合闸等情况，同时降低了装置成本以及UPFC的损坏风险。 |
| 关键词: 统一潮流控制器 故障限流器 设计 故障电流控制 拓扑 |
| DOI： |
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| 基金项目:国家高技术研究发展计划（863计划）项目（2012AA050402） |
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| Design of UPFC-FCL based on fault current control |
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CHEN Feng, JIANG Daozhuo, ZHOU Yang, FAN Yu, GUO Yimu, CHEN Ke
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College of Electrical Engineering，Zhejiang University，Hangzhou 310027，China
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| Abstract: |
| For the short circuit protection of UPFC（Unified Power Flow Controller），a topology of UPFC-FCL （UPFC with Fault Current Limiting） is proposed based on the fault current control. The on-off switching of the power-consumption resistor in current-limiting reactor branch is cooperated with the parallel-side control of UPFC to limit the rising rate and amplitude of fault current and ensure the safety of equipment. The topological structure and working principle are introduced，the mathematical models established and the key parameters designed. Simulative results show that，the proposed UPFC-FCL controls the fault current more precisely and adjusts the current-limit setting flexibly to match the current settings of relay protection and circuit breaker；its post-fault recovery is fast；it is suitable for multiple faults and automatic reclosing；and its cost and damage risk are reduced. |
| Key words: unified power flow controller fault current limiter design fault current control topology |
