Abstract
In this chapter (A part of this chapter has been published in ISA Transactions, Elsevier, vol.70, September 2017.), the sliding mode control (SMC) with a proportional-integral-type sliding function for buck converter is proposed. The proofs of stability and zero steady-state error are presented. The simulation and experimental results are presented. It is shown that the proposed SMC law for Buck converter results in better steady-state response of load voltage than conventional SMC for a given reference. The efficacy of the proposed SMC law is evaluated for load disturbances. It is shown that the proposed SMC law provides robustness against load disturbances. Effects of variations in controller parameters are explored. The discussion of stability, frequency limits of the switching device, and steady-state performance of the load voltage is presented. Moreover, to facilitate finite-time reaching, the integral SMC with finite-time reaching (ISMCFTR) is proposed. With ISMCFTR, the load voltage is forced to be equal to reference voltage within the finite time. The guidelines for tuning parameters of the ISMCFTR are given. Simulation results demonstrate the efficacy of the system under ISMCFTR.
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Mehta, A., Naik, B. (2019). Sliding Mode Controller with PI-Type Sliding Function for DC–DC Buck Converter. In: Sliding Mode Controllers for Power Electronic Converters. Lecture Notes in Electrical Engineering, vol 534. Springer, Singapore. https://doi.org/10.1007/978-981-13-3152-7_3
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DOI: https://doi.org/10.1007/978-981-13-3152-7_3
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Publisher Name: Springer, Singapore
Print ISBN: 978-981-13-3151-0
Online ISBN: 978-981-13-3152-7
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