Adaptive total sliding mode control for the current of power factor correction circuit

Abstract

The design of an adaptive total sliding mode control (ATSMC) system for the current control of power factor correction (PFC) is addressed in this paper. The designed ATSMC can achieve elegant performance under ideal condition as well as the existence of parameters variations, moreover, the designed controller parameter is adjusted adaptively to overcome the potential chattering. The merits of the designed ATSMC is verified by a boost type PFC prototype, the simulation and experiment results show that the PFC circuit can achieve unity power factor and sinusoidal grid current, simultaneously, the output voltage has well dynamic and steady state performance.

Co-Design of the Control and Power Stages of a Boost-Based Rectifier with Power Factor Correction Depending on Performance Criteria

“…Moreover, the PFC system regulated by a PI controller is relatively simple because the inner loop deals with the system nonlinearities and the time-varying reference. Nevertheless, in many cases the design procedure of the PI controller of the outer loop is not provided [14,15,18,20] or it is not clearly explained [16,17,19].…”

“…Other works use SMC theory to propose complex controllers to track i r by generating the duty cycle of the Boost converter [14,[23][24][25]. In [23], the authors propose an SMC observer for i L and v dc , and combine this observer with a triangular signal to generate a PWM with a fixed frequency.…”

“…Moreover, the works presented in [14,24,25] use complex switching functions to implement the SMCs. In [14,24], the proposed switching functions include the inductor current error as well as its first [14] and the second integrals [24]; while in [25], the switching function considers the inductor current and output voltage errors along with their integrals.…”

“…Moreover, the works presented in [14,24,25] use complex switching functions to implement the SMCs. In [14,24], the proposed switching functions include the inductor current error as well as its first [14] and the second integrals [24]; while in [25], the switching function considers the inductor current and output voltage errors along with their integrals. On the one hand, the advantages of the work introduced in [14] are: it combines two switching functions to provide robustness to uncertainties in the inductor resistance and inductance; it performs a Lyapunov-based stability analysis; and the controller includes a PI to regulate v dc and to provide zero steady-state error.…”

“…Nevertheless, there is not a detailed design procedure for the SMC parameters to facilitate its implementation in other converters, it requires an additional sensor to measure the output capacitor current, and considers a resistive load. Further, similar to the SMC-based controllers introduced in [14,[23][24][25], the SMC generates a PWM signal and not the converter-switching signal, which reduces the speed of the converter dynamic response.…”