数字仿真的瞬变涡流场计算方法

Computational Method of Digital Simulation of Momentary Change Field-Vortex

在多段圆弧极靴水轮发电机动态性能的数字仿真研究中,避免了等效电路法中参数确定这一棘手问题,采用瞬变涡流场的理论和方法,综合考虑定转子间的相对运动、铁磁材料的非线性、阻尼绕组内的涡流等因素的影响,仅根据电机的几何尺寸和材料特性,开发出“大型水轮(汽轮)发电机动态过程的数字仿真软件包”。

In a digital simulation researsh of dynamic capability of the waterwheel generator of multi-section circular arc limited martingale,this paper presents a theory and method of a momentary field-vortex.Ic studies the effect of opposite movement between the stator and rotor,nonlinearity of magnetical material,in the vortex of the damed winding etc.It avoids the hard problem,by fixing parameters in the mothod of equivalent circurt,but just according to the geometric size and material characteristic of the generator,has developed a digital simulation software of a dynamic process of a large-scale waterwheel(gaswheel)generators.