Calculation and Research of Single-Core XLPE Power Cable Distribution Parameters
With a view to finding a method to accurately calculate the power cable distribution parameters,this paper compares and analyzes three calulation methods,i.e.the LCC in ATP/EMTP,Carson-Clem formula,and the power _cableparam function in Matlab,and verifies the actuary of the methods with calculation examples.The results show that the three methods adopt the same equation in the calculation of conductance matrix,and derives the close resuits.In the inductance matrix calculation,the results of the LCC and the power_cableparam function approximate,but Carson-Clem formula achieves relatively higher results in calculating the mutual impedance between the wire core and metal sheath at the same phase.Among the three algorithms,the LCC and power_cableparam are consistent in terms of accuracy,but power_cableparam can only calculate the unarmored power cables with equal spacing arrangement.Therefore,power_cableparam should be the priority choice in calculating the cable distribution parameters,and the LCC follows as an alternative when power_cableparam fails to meet the requirements.
power cableimpedance matrixadmittance matrixLCCCarson-clem formulapower_cableparam
NETL
NSTL
万方数据
维普
