| 城市轨道交通中压环网大分区供电保护方案比选 |
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| 引用本文： | 王蛟,杨灵芝.城市轨道交通中压环网大分区供电保护方案比选[J].城市轨道交通研究,2018(1):95-97. |
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| 作者姓名： | 王蛟 杨灵芝 |
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| 作者单位： | 中交机电工程局有限公司技术中心,430063,武汉 |
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| 摘 要： | 介绍了城市轨道交通中压环网供电保护的各种方案,包含过流时间级差方案、硬线闭锁方案、近区速动方案、动态加速方案、GOOSE(面向通用对象的变电站事件)网络方案、电流选跳方案及线路母线全差动方案等。对比分析了各方案的可靠性、选择性、经济性和复杂性等性能。其比较结果可为城市轨道交通后续工程供电保护方案选择提供参考。
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| 关 键 词： | 城市轨道交通 供电系统 中压环网 大分区供电保护 urban rail transit power supply system medium voltage ring network large divisional power supply protection |
Comparison and Selection of Protection Scheme for Large Division Power Supply in Urban Rail Transit Medium Voltage Ring Network |
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| WANG Jiao,YANG Lingzhi.Comparison and Selection of Protection Scheme for Large Division Power Supply in Urban Rail Transit Medium Voltage Ring Network[J].Urban Mass Transit,2018(1):95-97. |
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| Authors: | WANG Jiao YANG Lingzhi |
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| Abstract: | Various protection schemes for large division pow-er supply in urban rail transit medium voltage ring network are introduced,including the over-current time grade scheme,hard wire blocking scheme,near field instant protection,dynamic accelerating scheme,GOOSE network protection scheme,se-lective current tripping protection,line and bus bar differential protection scheme,and so on. Their reliability,selectivity,eco-nomic efficiency and maneuverability are compared and ana-lyzed. The conclusion can be used as the selection reference for the following protection schemes. |
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