| 引用本文: | 张华,林茂君,张道农,等.一种基于单母线分段的变压器风冷控制系统设计[J].电力系统保护与控制,2019,47(14):153-159. |
| ZHANG Hua,LIN Maojun,ZHANG Daonong,et al.A design of transformer air cooling control system based on sectionalized single bus scheme[J].Power System Protection and Control,2019,47(14):153-159 |
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| 摘要: |
| 针对典型的变压器风冷控制系统因单母主接线方式的不足，在母线故障时供电母线失压导致变压器风冷全停的情况，提出了一种基于单母线分段接线的变压器风冷控制系统。通过对该变压器风冷控制系统进行故障类型与运行方式分析，提出了相应的自动控制与继电保护配置方案。该方案在变压器风冷控制系统发生母线故障时，可以通过相应的继电保护和备自投动作，准确定位并隔离故障点，避免造成风冷全停的严重事故。试验验证了该方案对保证变压器风冷系统正常运行的有效性。 |
| 关键词: 风冷控制系统 单母线分段 备自投 变压器 |
| DOI：10.7667/PSPC20191419 |
| 分类号: |
| 基金项目:国网总部科技项目资助(52020116000H)“微机型变压器智能冷却控制系统”;国网北京电力公司科技项目(52023317000H) |
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| A design of transformer air cooling control system based on sectionalized single bus scheme |
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ZHANG Hua1,LIN Maojun1,ZHANG Daonong2,LIANG Shoushuo3,ZHAO Jian3
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(1. Maintenance Company of State Grid Beijing Electric Power Company, Beijing 100007, China;2. North China Power Engineering Co., Ltd., Beijing 100120, China;3. Shanghai Zexin Electric Power Technology Co., Ltd., Shanghai 201206, China)
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| Abstract: |
| This paper proposes a transformer air-cooling control system based on sectionalized single bus scheme, in consideration of the shortage of single bus scheme in typical transformer air-cooling system and the failure scenarios of air-cooling full stop caused by voltage loss of power supply when bus fault occurs. By analyzing the fault types and operation modes of this transformer air-cooling control system, the corresponding configuration schemes of automatic control and relay protection are proposed. When bus fault occurs in transformer air-cooling system, this scheme can locate and isolate the fault point accurately by relay protection and standby power supply automatic switching action, and avoid serious accidents caused by air-cooling system full stop. The test proves the validity of the solution to ensure the normal operation of the transformer air-cooling system. This work is supported by Science and Technology Project of the Headquarter of State Grid Corporation of China (No. 52020116000H) “Intelligent Cooling Control System for Micro-processor Transformer” and Science and Technology Project of State Grid Beijing Electric Power Company (No. 52023317000H). |
| Key words: air-cooling control system sectionalized single bus scheme standby power supply automatic switching transformer |
