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Evaluation and mitigation for DC bias in Hydropower plant
Author(s): 
Pages: 29-35
Year: Issue:  7
Journal: Electric Machines and Control

Keyword:  直流输电变压器直流偏磁电流注入法;
Abstract: 对水电站变压器直流偏磁的问题建立了评估模型并开发出软件计算,通过实测与仿真的对比说明模型有效性,并以锦屏二级水电站为例对水电站的建设和运行提出了建议.另外,结合水电站的实际情况分析了不同抑制措施的特点,重点分析了电流注入法的原理和仿真模型,通过监测数据验证了电流注入法模型的有效性,并定量分析了土壤电阻率和补偿距离对中性点注入电流时补偿度的影响.仿真计算和实际应用情况表明:电流注入实质上起补偿变电站...
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