【摘要】 对高压同步电动机的断电失步及断电失步后电源重新恢复时非同期冲击的过渡过程进行了详细的分析,建立了非同期冲击时刻电动机的Park电压状态方程与机械运动方程,进而得出其较为准确的数学模型。并基于MATLAB对这种严重故障状态进行了仿真研究,利用四阶变步长龙格-库塔法得到了七阶变系数非线性微分方程组的数值解,给出了各电气与机械分量的波形。更多还原

【Abstract】 In this paper, the asynchronous impulsion transitional process of power-off step-out and power restoring after power-off step-out for high-voltage synchronous motor is analyzed in detail, and the PARK voltage state equations and mechanical movement equations of asynchronous impulsion process are established, then the comparably exact mathematic model is gained. In the same time, based on MATLAB and four-variational-step Runge-Kutta method is adopted for the simulated study of the serious fault state, thus the numeric solution of seven-step variation coefficient non-linear differential equations is concluded and the waveform of each electric and mechanical component is given. 更多还原