汽轮发电机绕组端部电动力的三维计算 (Ⅰ)积分方程法  

3D Computation of Electromagnetic Force in the End Winding of Turbogenerator Part Ⅰ.Integral Equation Method

作　　者：张炳军[1] 陈贤珍[1] 周克定[1] 

机构地区：[1]华中理工大学

出　　处：《大电机技术》1993年第5期25-29,共5页Large Electric Machine and Hydraulic Turbine

摘　　要：详细推导出了适用范围广的求解三维电磁场的边界积分方程,从理论上消除了方程的奇异性。完整地给出了方程的迭代求解公式,并讨论了积分系数阵的特殊性质在矩阵存储及方程求解中的应用。采用改进的超松弛迭代法有效地改善了求解过程的收敛性。对国产600MW汽轮发电机的端部场所作的实例计算给出了令人满意的结果。全文共分两个部分。第一部分介绍三维电磁场计算的基本理论;第二部分介绍端部电动力计算及有关结论。The boundary integral equations, solving 3D electromagnetic field and having wide scope of application, have been derived in detail, to theoretically remove singularity of the equations,Interactive formulas for calculating the equations are presented completely and application of special character of integral coefficient matrix to matrix storaging and equation solving is discussed. Convergence of solving process is effectively improved by use of modified overrelaxation interaction method. As example, field determination in end region of a 600MW turbogenerator manufactured at home gives satisfactory results. The paper is divided into two parts. Part Ⅰ introduces the calculation basic theory of 3D electromagnetic field, part Ⅱ—calculation of electromagnetic force in end region and concerned conclusions.

关 键 词：绕组 计算 电动力 汽轮发电机 

分 类 号：TM311.031[电气工程—电机]