| 一种变电站直流电源级差配合实现方法 |
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| 引用本文： | 陆洪建,刘志远,杨晨,黄欣,崔鹏. 一种变电站直流电源级差配合实现方法[J]. 宁夏电力, 2021, 0(4): 60-64 |
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| 作者姓名： | 陆洪建 刘志远 杨晨 黄欣 崔鹏 |
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| 作者单位： | 国网宁夏电力有限公司检修公司,宁夏 银川750011 |
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| 摘 要： | 随着电网数字化、智能化的快速发展,变电站低压直流系统供电负荷不断延伸,负荷数量不断增加,传统直流级差配合中由于缺乏智能控制、保护、监测功能,已无法满足系统实际要求.针对上述问题,从变电站直流电源系统构成出发,引入站域理念对低压直流级差系统进行设计,提出了融合高速采样技术、分励脱扣器技术、电动操作机构技术的直流电源级差配...
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| 关 键 词： | 站域保护 级差配合 电源系统 |
An implementation method for stage difference coordinationof substation DC power supply |
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| LU Hongjian,LIU Zhiyuan,YANG Chen,HUANG Xin,CUI Peng. An implementation method for stage difference coordinationof substation DC power supply[J]. Ningxia Electric Power, 2021, 0(4): 60-64 |
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| Authors: | LU Hongjian LIU Zhiyuan YANG Chen HUANG Xin CUI Peng |
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| Affiliation: | Maintenance Company of State Grid Ningxia Electric Power Co., Ltd., Yinchuan Ningxia 750011 , China |
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| Abstract: | In pace with the boom of digital and intelligent power grid, power supply load of low -voltage DC system expands constantly, and load number keeps increasing. Consequently, the tradi-tional stage difference coordination of DC power supply can no longer meet the practical demand of thesystem. In view of the problems , based on the composition of DC power supply system, introduces aconcept of substation domain to design a low-voltage DC stage difference system. In addition, itproposes a stage difference coordination integrating high-speed sampling technology, shunt trip andelectric operation mechanism. The effectiveness of the proposed method was verified, which provideda guarantee to safe and stable operation of on-site equipment. |
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