| 宝鸡换流站HP12/36直流滤波器高压电容器组不平衡电流保护 |
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| 引用本文： | 周登洪,李媛,信建伟. 宝鸡换流站HP12/36直流滤波器高压电容器组不平衡电流保护[J]. 电力电容器与无功补偿, 2010, 31(1): 19-22 |
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| 作者姓名： | 周登洪 李媛 信建伟 |
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| 作者单位： | 西安西电电力电容器有限责任公司,陕西,西安,710082 |
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| 摘 要： | 直流电容器不会因为内熔丝动作造成过电压,所以直流滤波电容器保护与交流滤波电容器、并联电容器内部故障保护有所区别。为了更加有效地保护直流电容器组,在此通过对桥差不平衡电流保护和差电流不平衡保护的详细计算,对这两种保护方式进行比较。在相同的总谐波电流下,桥差电流略大于差电流,保护精度略高且成本较低。
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| 关 键 词： | 直流滤波器 桥差电流不平衡保护 差电流不平衡保护 |
High Voltage Capacitor Bank Unbalanced Current Protection of HP12/36 DC Filter at Baoji Converter Station |
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| ZHOU Deng-hong,LI Yuan,XIN Jian-wei. High Voltage Capacitor Bank Unbalanced Current Protection of HP12/36 DC Filter at Baoji Converter Station[J]. Power Capacitor $ Reactive Power Compensation, 2010, 31(1): 19-22 |
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| Authors: | ZHOU Deng-hong LI Yuan XIN Jian-wei |
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| Affiliation: | Xi'an XD Power Capacitors Co.;Ltd.;Xi'an 710082;China |
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| Abstract: | The DC capacitor will not cause over-voltage due to fuse action,the protection of DC filter capacitor is different from the internal fault protection of AC filter capacitor and shunt capacitor.This article compares these two kinds of protection methods through detailed calculations of the bridge differential unbalanced current protection and differential unbalanced current protection in order to achieve more effective protection of DC capacitor bank.In case of the same total harmonic current,bridge differen... |
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| Keywords: | DC filter bridge differential unbalanced current protection differential unbalanced current protection |
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