CAJ | 학술논문

提出了一种数值解与解析解相结合的材料均匀化处理方法，采用时域分析的方式，计算了正弦激励下非线性各向异性的叠片铁心中的三维漏磁场及结构件的损耗。以TEAMProblem2lC_M，模型为例，通过损耗的计算值和测量值的对比，验证了该方法的正确性。并将该方法应用于1台DFP．380MVA／500kV单相电力变压器的数值计算中，结构件损耗的计算误差为6．166％。该方法在保证工程精度的前提下减小了计算规模，使得大型电力变压器结构件损耗的准确计算成为可能。
제출료일충수치해여해석해상결합적재료균균화처리방법，채용시역분석적방식，계산료정현격려하비선성각향이성적첩편철심중적삼유루자장급결구건적손모。이TEAMProblem2lC_M，모형위례，통과손모적계산치화측량치적대비，험증료해방법적정학성。병장해방법응용우1태DFP．380MVA／500kV단상전력변압기적수치계산중，결구건손모적계산오차위6．166％。해방법재보증공정정도적전제하감소료계산규모，사득대형전력변압기결구건손모적준학계산성위가능。
A time domain analysis method combining analytical and numerical solutions for material homogenization was proposed to calculate 3D leakage magnetic fields and its structural part losses in the nonlinear and anisotropic laminated core with the sinusoidal excitation. The TEAM Problem 21C-Ml was used as the numerical example to verify this method with the comparison of the losses between the calculated and measured results. This method was applied to the numerical calculation of a DFP-380MVA/500kV single-phase power transformer; and the calculation error of the structural part losses was 6.166%. On the premise of engineering precision, this method can reduce the scale of calculation and make it possible to accurately calculate the structural part losses in large power transformers.