| 零序差动保护在船舶电力系统中的运用 |
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| 引用本文： | 王德民,莫文科,胡昱宙.零序差动保护在船舶电力系统中的运用[J].船舶工程,2015,37(10):58-61. |
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| 作者姓名： | 王德民 莫文科 胡昱宙 |
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| 作者单位： | 海军驻上海704所军事代表室,中国船舶重工集团公司第704研究所,中国船舶重工集团公司第704研究所 |
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| 摘 要： | 中压船舶电力系统中普遍采用高阻接地,零序过流保护可对接地故障进行保护,但其快速性及选择性有时难以满足系统需求。本文采用零序差动电流保护实现船舶中压电力系统的接地故障保护,相较传统零序过流保护取得更好的保护快速性及选择性。分析了零序差动保护的原理、接线、动作特性,其次讨论了保护对零序电流互感器、继电保护装置的要求,最后通过硬件在环仿真验证了该保护的性能。
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| 关 键 词： | 船舶电力系统 零序差动保护 中压交流 接地保护 |
| 收稿时间： | 2015/8/18 0:00:00 |
| 修稿时间： | 2015/10/26 0:00:00 |
The application of Zero-Sequence Differential Protection in Shipboard power system |
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| Wang Demin,Mo Wenke and.The application of Zero-Sequence Differential Protection in Shipboard power system[J].Ship Engineering,2015,37(10):58-61. |
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| Authors: | Wang Demin Mo Wenke and |
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| Institution: | Representative Section Stationed at No.704Research Institute,Shanghai,, |
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| Abstract: | High resistance grounding and zero-sequence over current protection are widely used Ship medium voltage power system. This paper presents a zero-sequence differential protection,which has better selectivity and rapidity than zero-sequence over current protection. Firstly this paper introduces the protection principle,electric connection and the action characteristic of zero-sequence differential protection. And then the request of zero-sequence current transformer and Relay Protection Device for zero-sequence differential protection is analyzed. The protection capability is validated by hardware-in- -the-loop test in the end. |
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| Keywords: | Shipboard Power System zero-sequence differential protection Medium Voltage AC System Grounding protection |
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