| 引用本文: | 王贺萍,田二胜,王 露.基于多分组并补电容器的新型微机保护装置研制[J].电力自动化设备,2012,32(3): |
| WANG Heping,TIAN Ersheng,WANG Lu.Development of microcomputer protection based on multi-group parallel capacitors[J].Electric Power Automation Equipment,2012,32(3): |
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| 摘要: |
| 新研制的电容器保护装置遵循“多路模拟量输入单一开关量输出”的原则，适应了负荷末端供电网络为了提高无功补偿的效果而采取的电容器自动投切多分组保护的需求。输入的多分组模拟量通过内部电路的“或门”比较分析，有选择地投退断路器和切除各分组故障电容器，降低了设备的浪费并提高了保护可靠性。对新研制的保护装置的特点、软硬件构成和保护配置原理及判据进行了详细的分析。 |
| 关键词: 并联电容器 多分组 微机保护 多路模拟量输入 单一开关量输出 |
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| Development of microcomputer protection based on multi-group parallel capacitors |
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WANG Heping, TIAN Ersheng, WANG Lu
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XJ Group Corporation，Xuchang 461001，China
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| Abstract: |
| In order to realize the automatic switching of multiple capacitor groups，the recently-developed capacitor protection follows the “multi-analog inputs and single-binary output” principle to meet the requirement of power supply network for reactive power compensation improvement. The multiple subgroup analog inputs are analyzed by the internal “OR” gates to switch on or off the selected circuit breakers and cut off the faulty capacitors of each subgroup，which reduces the equipment investment and improves the protection reliability. Its features，software／hardware composition，configuration principle and action criteria are analyzed in detail. |
| Key words: parallel capacitor multi-group microcomputer protection multiple analogue inputs single binary output |
