云南电力技术
雲南電力技術
운남전력기술
YUNNAN ELECTRIC POWER
2015年
2期
96-99,116
,共5页
架空线%线损率%经济运行%无功补偿
架空線%線損率%經濟運行%無功補償
가공선%선손솔%경제운행%무공보상
overhead transmission line%line loss rate%economical operation%reactive power compensation
从110 kV架空输电线路总损耗的基础上,用数学极值方法推导出了110 kV架空线路上负荷潮流变化时架空输电线路经济运行功率的计算公式,并得出当架空输电线路末端负荷按经济功率运行时,其线损率最低,线路的运行效率最高的结论,并进一步根据线路负荷潮流中无功含量的变化对线路线损率的影响分析了变电站无功补偿策略。
從110 kV架空輸電線路總損耗的基礎上,用數學極值方法推導齣瞭110 kV架空線路上負荷潮流變化時架空輸電線路經濟運行功率的計算公式,併得齣噹架空輸電線路末耑負荷按經濟功率運行時,其線損率最低,線路的運行效率最高的結論,併進一步根據線路負荷潮流中無功含量的變化對線路線損率的影響分析瞭變電站無功補償策略。
종110 kV가공수전선로총손모적기출상,용수학겁치방법추도출료110 kV가공선로상부하조류변화시가공수전선로경제운행공솔적계산공식,병득출당가공수전선로말단부하안경제공솔운행시,기선손솔최저,선로적운행효솔최고적결론,병진일보근거선로부하조류중무공함량적변화대선로선손솔적영향분석료변전참무공보상책략。
On the basis of the total loss on 110 kV overhead transmission lines the formula of economic load power on overhead transmission lines is deduced under the influence of the load flow changes, using mathematical extremum method.And when termi-nal load on overhead transmission lines operates according to economic power, the line loss is the lowest, and the line operation effi-ciency is the highest.Then the substation reactive power compensation strategy is analyzed according to the impact of reactive power content in load flow on line loss.