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将Smith法应用于水轮机调速器控制中，以克服不稳定零点的不利影响，同时引入干扰观测器，改善Smith法带来的抗干扰性的不足，使系统具有良好的鲁棒稳定性。仿真实验表明，该系统对控制对象的参数变化具有令人满意的鲁棒稳定性。
The Smith method is applied to turbine governor control to overcome the unfavorable influence of unstable zero point. At the same time, the interference observer is introduced to improve the anti-jamming effect of Smith method and make the system robust and robust. Simulation results show that this system has satisfactory robust stability to the change of parameters of the control object.