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该文给出了直角坐标系下大型水轮发电机求解域内三维稳态热传导方程及其等价变分方程。采用三维等参元法计算了大型水轮发电机定子温度场 ,给出了取不同气隙散热系数方法时考虑股线绝缘和不考虑股线绝缘影响定子铜温沿径向分布曲线及温度变化场图 ,并采用数值模拟方法分析了绝缘材料的导热系数对电机定子温度场的影响
In this paper, the three-dimensional steady-state heat conduction equation and its equivalent Variational equation are solved for a large hydroelectric generator in Cartesian coordinates. The stator temperature field of a large hydroelectric generator is calculated by using the three-dimensional isoparametric method, and the radial distribution curve and temperature variation of the copper temperature of the stator are taken into account when considering the insulation of the strands and the influence of the insulation of the strands when taking the different air-gap heat dissipation coefficient method Field diagram, and the influence of the thermal conductivity of the insulating material on the temperature field of the stator is analyzed by numerical simulation