ITAE criterion based controller for buck converter

Asadi, Farzin; Abut, Nurettin

International Journal of Advanced and Applied Sciences

Int. j. adv. appl. sci.

EISSN: 2313-3724

Print ISSN: 2313-626X

Volume 4, Issue 1 (January 2017), Pages: 15-22

Title: ITAE criterion based controller for buck converter

Author(s): Farzin Asadi ^1,*, Nurettin Abut ²

Affiliation(s):

¹Engineering Department, Faculty of Mechatronics Engineering, Kocaeli University, Kocaeli, Turkey
²Engineering Department, Faculty of Electrical Engineering, Kocaeli University, Kocaeli, Turkey

https://doi.org/10.21833/ijaas.2017.01.003

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Abstract:

DC-DC converters are an important class of power converters. Output voltage is subject of change due to various factors such as converter input voltage change, load change and losses in circuit elements. In order to obtain a constant output voltage, a controller must be added to the converter. In this paper, problem of designing controller for Buck converter in presence of circuit none idealities such as: switch resistance, inductor and capacitor series resistance, diode voltage drop and load current variations is solved. To do this, using State Space Averaging (SSA), small signal model of converter is obtained. In the next step, a controller is designed based on Integral of Time multiplied by Absolute Error (ITAE) performance index. Controller performance is tested with the aid of simulation for different scenarios.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Keywords: Buck converter, Close loop control, State space averaging, Type 2 error amplifier

Article History: Received 29 August 2016, Received in revised form 10 November 2016, Accepted 20 November 2016

Digital Object Identifier: https://doi.org/10.21833/ijaas.2017.01.003

Citation:

Asadi F and Abut N (2017). ITAE criterion based controller for buck converter. International Journal of Advanced and Applied Sciences, 4(1): 15-22

http://www.science-gate.com/IJAAS/V4I1/Asadi.html

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