Experimental Platform of DC-DC Buck Converter Based on Sliding Mode Control
In order to realize the high-precision control of the DC-DC buck converter,an output voltage regulator based on sliding mode control is proposed.Firstly,the dynamic model of the system is established according to the circuit principle of the DC-DC buck converter.Then,a sliding mode controller is developed based on thedisturbed dynamic model,and the stability of the closed-loop system is proved based on a defined Lyapunov function.Finally,an experimental test platform is built by using Mat-lab/Simulink software and the hardware circuit of the DC-DC buck converter.The results show that compared with the traditional PID control method,the DC-DC buck converter system can obtain faster dynamic performance and stronger disturbance rejection ability under the action of the designed sliding mode controller.The experimental platform is not only helpful for college students to understand and grasp sliding mode control theory,but also can improve their engineering application ability.
experimental platformDC-DC buck convertersliding mode control
万方数据
维普
