A novel high order sliding mode control method. (May 2021) - Guo, Jianping
Abstract: In this article, we develop an original high order sliding mode control (SMC) method which can be used to control single input single output (SISO) system and multi-variable system. The method has the benefit of resisting unmodelled dynamics and external disturbance. However, there exist the chattering effect in the conventional control methods. For decreasing the chattering phenomenon, a new high order SMC method is raised. Firstly, the new methodology is designed. Secondly, the method is employed to control the single input single output system with two examples. Thirdly, this new scheme is applied to control the multi-variable system. At the same time, two examples are presented to testify the validity of the raised control method, then the raised new control method has been utilized to the load frequency control. Additionally, in comparison with other recently existed high order control method, the raised control method has demonstrated better control performance in terms of fast convergence and chattering phenomenon. Highlights: In this paper a novel high order sliding mode control method has been addressed. The stability of this new method has been proved mathematically. The proposed method has been applied to the SISO system, but also multi-variable system. Additionally, it has been used to the load frequency control based on two areas power system. The simulation results verify the effectiveness of the proposed method. The proposed high order sliding mode control method has been compared other recently proposed high order sliding mode control method, which proves the superiority of the proposed method.