Conference Papers

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506

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Subject: search.filters.subject.hysteresis modulation (HM)

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    Design and implementation of sliding mode voltage controller for DC to DC buck converter by using hysteresis modulation and pulse width modulation
    (Institute of Electrical and Electronics Engineers Inc., 2016) Kiran, B.; Parthiban, P.; Jena, D.; Prakash, P.S.
    This paper presents the design and implementation of sliding mode control law to the output voltage control of DC to DC buck converter. The robustness of the sliding mode controller is tested by changing the different circuit components and comparing the results with conventional linear controller. The result shows that the sliding mode controller performs better in the transient condition over a wide range of operation when compared with linear controller. Sliding mode controllers by using hysteresis modulation and pulse width modulation are implemented in MATLAB/simulink. The disadvantages of sliding mode controller by using hysteresis modulation is overcome by using pulse width modulation. © 2016 IEEE.
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    Comparative Overview of Internal Model Control Based PID, State Feedback Integral, and Sliding Mode Controllers for Buck Converter
    (Institute of Electrical and Electronics Engineers Inc., 2019) Shankar, K.G.; Jena, D.; Reddivari, R.
    The controller plays a key role in the performance of switched mode power supplies (SMPS). Various control techniques have been proposed in the literature to improve the performance of SMPS. However, each and every controller has its own merits as well as demerits. This paper used three different kinds of control schemes such as IMC-PID control, state feedback integral control, and sliding mode control, applied to the traditional buck converter to show their effectiveness. Firstly, a detailed small-signal model of a buck converter is developed. The small signal transfer function derived from the small signal model is used to calculate the control parameters. The working principle and control parameter tuning of above-mentioned control schemes are clearly shown with mathematical expressions. Finally, the effectiveness of the given controllers is validated by using MATLAB/SIMULINK software platform. © 2019 IEEE.