油田配电网理论线损计算

分析了抽油机的负荷特性,提出一种改进的油田配电网理论线损计算方法。该方法将抽油机的瞬时有功功率近似表示成正弦的形式,分别得出有单台和汇有多台抽油机负荷的导线和变压器的线损电量表达式,推导出考虑负荷波动与不考虑负荷波动时支路的可变损耗电量计算值之间的关系表达式。对某油田一条具有13个负荷的典型配电线路的理论线损电量进行了计算,并分别与常规潮流计算方法和实测结果进行了比较。结果表明,提出的方法可行,并且提高了理论线损的计算精度。

Theoretical Line Loss Calculation of Oil Field Power Distribution Networks

This paper analyzes the loading behaviors of oil pumps,and suggests a kind of improved method to calculate theoretical line loss of power distribution networks for the oil fields.This method can approximately express the instant active power of oil pump as the sine form,whereby obtaining the line loss electric expressions for the loading of single and miltiple oil pumps and transformers respectively.Also,the relationship expressions among the changeable electric loss calculation values of the branches with and without considering loading fluctuation are deduced.The theoretical electric line losses of a typical power distribution line with 13 loads in some oil field are calculated,comparing with those by the conventional calculation method and real measurement.The results indicate that the method suggested is feasible with the calculating accuracy of theoretical line loss improved.