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研究离散时间系统变结构控制问题,提出一种新的离散变结构趋近律.利用该趋近律设计的离散变结构控制器,不仅能大幅度削弱抖振,使系统运动最终趋于原点不存在稳态振荡,而且可使系统的准滑动模态保持步步穿越切换面的基本属性,有效地改善了控制品质,提高了系统的鲁棒性.仿真结果验证了该方法的有效性与合理性.
In order to solve the problem of variable structure control of discrete-time systems, a new approach of the discrete variable structure approach is proposed. Using the discrete variable structure controller designed by this approach, not only the chattering can be greatly reduced, The steady oscillation exists, and the quasi-sliding mode of the system can be kept walking through the basic properties of the switching surface step by step, effectively improving the control quality and improving the system robustness.The simulation results verify the effectiveness and reasonableness of the method Sex.