Reduction of Switching Losses in Step Down Converter using Proposed Reaching Law

power electronics

The proposed reaching law based sliding mode control is used for chattering suppression, minimization of steady state error and reaching speed kept minimsed. With fine tuning of parameters of robust reaching law, the sliding mode reaches the equilibrium point at the earliest. The stability of the proposed reaching law is analyzed. In one hand, they guarantee the system reach the sliding surface rapidly and remain on it, in another way they deteriorate the chattering effectively, even unmatched certainties and disturbances. Such that the system response can better realize the unification of rapidity. A proposed reaching law ia analysed mathematically and applied to SMC DC-DC buck converter to lessen the chattering, because switching devices are existing in the model, it reduces the switching losses in the switching devices of the dc-dc converter. MATLAB/Simulink results gives significant decline of chattering

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