Adaptive super twisting total sliding mode control for Boost-type PFC converter
An adaptive super twisting total sliding mode control(ASTTSMC)for a boost type power factor correction(PFC)converter was proposed.This method ensures that the PFC converter has good perform-ance under ideal working conditions,and can still maintain global robustness in the face of system uncer-tainties containing load mutations,power grid voltage fluctuations,and changes in inductance parameter.In the design of the control law,total sliding mode control was adopted as the baseline model to ensure that the system has robustness throughout the whole response process.At the same time,considering sys-tem uncertainties,in the switching term an adaptive super twisting algorithm was used to reduce the po-tential chattering phenomenon of the system through the adaptive switching gain parameter.In addition,the stability of the designed control system is proved based on the Lyapunov stability theorem.The experi-mental results demonstrate that this method can effectively improve the quality of grid-side current and en-hance the power factor of the converter under both ideal working conditions and in the presence of system uncertainties.This validates effectiveness of the proposed method and robustness of the designed controller.
power factor correction convertertotal sliding modesuper twisting algorithmadaptive con-trolrobustness control
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NSTL
万方数据
维普
