Nonlinear integral sliding mode control strategy for brushless DC motors

抄録

To overcome the issues of large overshoot and slow response commonly associated with conventional integral sliding mode control in speed regulation, this paper proposes a novel nonlinear integral sliding mode control strategy based on an improved reaching law for the integral sliding surface. Firstly, this paper optimizes the traditional integral sliding surface and the exponential reaching law, and evaluates their stability through Lyapunov stability analysis. Subsequently, based on the optimized sliding surface and reaching law, a Nonlinear Integral Sliding Mode Controller (NISMC) is developed. Finally, an experimental platform is established to conduct verification and comparative analysis. The experimental results demonstrate that the proposed NISMC strategy significantly enhances dynamic response and disturbance rejection capability.