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提出一种固定边界的变结构控制平滑方法 ,推导出变结构控制系统的稳态误差指标与边界内部加权系数之间定量的数学关系。通过系统的稳态误差指标可以设计出固定边界的平滑方法 ,从而既消除了系统的抖振又满足了对系统稳态误差指标的要求。仿真结果验证了该方法的有效性。
A new method of variable structure control and smoothing with fixed boundary is proposed. The quantitative mathematical relationship between the steady state error index of variable structure control system and the weighted coefficient inside the boundary is derived. The steady-state error index of the system can be used to design the smoothing method of the fixed boundary, so as to eliminate the chattering of the system and meet the requirements of the steady-state error index of the system. Simulation results verify the effectiveness of this method.