基于励磁滑模高阶的多机电力控制系统

Multi Machine Electric Power Control System Based on the High Order of Excitation Sliding Mode

为进一步提升多机电力控制系统的稳定特征,提出基于励磁滑模高阶的多机电力控制系统。在选取滑模变量时考虑不同发电机所呈现的功角差异,将不确定非线性多机电力控制过程,利用励磁滑模高阶过程转化成具有积分不确定特征的有限稳定策略,采用齐次几何连续控制器以及超螺旋二阶滑模控制,获得系统的有限收敛,基于鲁棒微分的功角观测微分,在理论上证明了系统的有限收敛性。最后,通过三机模型实验验证了控制策略有效性。

In order to improve the stability of the multi machine power control system, a multi machine power control system based on the high order of the excitation system is presented. In the selection of sliding variables, considering different generator power angle differences and using high order sliding mode excitation, the uncertain nonlinear multi machine power control process is transformed into a stabilized finite strategy with undetermined integral characteristics. Using the homogeneous geometric continuous controller and super spiral second-order sliding mode control, the finite convergence of the system is accessed. Based on robust differential angle observation differential, the finite convergence of the system is proved theoretically. Finally, the effectiveness of the control strategy is verified by the experiment of the three-machine model.