浙江电力
浙江電力
절강전력
ZHEJIANG ELECTRIC POWER
2015年
6期
5-8,27
,共5页
变压器%直流偏磁%灰关联分析%土壤参数
變壓器%直流偏磁%灰關聯分析%土壤參數
변압기%직류편자%회관련분석%토양삼수
transformer%DC bias%grey relational analysis%soil parameter
直流输电单极大地回线运行时，变压器绕组将流过较大的直流电流，导致变压器出现直流偏磁。变压器直流电流的仿真计算结果对制定直流偏磁限制措施具有重要意义。介绍了变压器直流偏磁仿真典型模型及参数，分析了影响计算精度的因素，应用灰关联分析方法给出了等效直流电阻、接地电阻、土壤参数等要素与直流偏磁仿真结果的关联程度。
直流輸電單極大地迴線運行時，變壓器繞組將流過較大的直流電流，導緻變壓器齣現直流偏磁。變壓器直流電流的倣真計算結果對製定直流偏磁限製措施具有重要意義。介紹瞭變壓器直流偏磁倣真典型模型及參數，分析瞭影響計算精度的因素，應用灰關聯分析方法給齣瞭等效直流電阻、接地電阻、土壤參數等要素與直流偏磁倣真結果的關聯程度。
직류수전단겁대지회선운행시，변압기요조장류과교대적직류전류，도치변압기출현직류편자。변압기직류전류적방진계산결과대제정직류편자한제조시구유중요의의。개소료변압기직류편자방진전형모형급삼수，분석료영향계산정도적인소，응용회관련분석방법급출료등효직류전조、접지전조、토양삼수등요소여직류편자방진결과적관련정도。
During monopolar operation of HVDC systems with ground return, large DC current would pass through transformer windings, which causes DC bias of transformer. The simulation results of DC current are significant to establish DC bias suppression method. This paper introduces typical simulation model of trans-former DC bias and the parameters and analyzes the factors that influence calculation accuracy. Based on the grey relational analysis, the relation of DC bias simulation results, equivalent DC resistance, ground resis-tance and soil parameter is presented.
