کنفرانس مهندسی برق ایران

صفحه اصلی / سی و دومین کنفرانس بین المللی مهندسی برق

Second-order Sliding Mode Control for DC-DC buck converter with input Voltage Ripple Elimination

نویسندگان :

Maede Azimi¹ Mehdi Asadi² Adel Zakipour³

1- دانشگاه صنعتی اراک 2- دانشگاه صنعتی اراک 3- دانشگاه صنعتی اراک

کلمات کلیدی :

DC-DC buck converter،sliding mode control،ripple elimination،torsional algorithm

چکیده :

In this paper, a second-order sliding mode controller is proposed for the DC-DC buck converter. The proposed SOSMC scheme has been developed to reduce the voltage ripple in the output rectifier stage, improve the control system robustness, and guarantee finite-time convergence properties under load variations and parameter uncertainties. Also, the capability of the proposed controller is verified and compared with the other sliding mode controllers using the MATLAB/Simulink toolbox. To evaluate the performance of this control system, three different cases are studied: response to start-up, turbulence in load, and change in reference voltage level. The results show that the proposed SOSMC eliminates the voltage ripple, improves the steady-state error, and reduces the settling time of the output voltage.