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Linear voltage and current mode cont...

Block, Ethan Avery.

Linear voltage and current mode control for the DC-DC buck converter.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Linear voltage and current mode control for the DC-DC buck converter.
Author:	Block, Ethan Avery.
Description:	88 p.
Notes:	Source: Masters Abstracts International, Volume: 54-04.
Notes:	Adviser: SRIDHAR SESHAGIRI.
Contained By:	Masters Abstracts International54-04(E).
Subject:	Electrical engineering.
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1585680
ISBN:	9781321646009

Linear voltage and current mode control for the DC-DC buck converter.
Block, Ethan Avery.

Linear voltage and current mode control for the DC-DC buck converter. - 88 p.

Source: Masters Abstracts International, Volume: 54-04.

Thesis (M.S.)--San Diego State University, 2015.

DC-DC converters are an important class of power converters that find applications in diverse applications such as portable electronic devices (cellular phones and laptop computers), hybrid electric vehicles (HEVs), and interfacing distributed generation (DG) sources such as photovoltaics (PVs) to the electric grid or microgrids. Almost all converters today are switching converters, i.e., contain power semiconductor switches that can be turned ON or OFF at high frequencies to achieve the desired power conversion, and invariably require a controller to meet performance objectives. The switching action makes these hybrid systems, and the relationship between the duty ratio of the switch (control input) and the converter voltage (controlled output) is nonlinear. Classical controller methods can be applied to these hybrid nonlinear switching converters using averaging and linearization. In this thesis, we compare linear voltage mode (that use the converter voltage) and current mode (that use the converter inductor current) designs for fixed frequency pulse width modulation (PWM) DC-DC converters. In addition to classical PID design, we also tune the PID controller gains using an LQR optimal control design that employs a high-gain observer (HGO) to estimate derivatives. The efficacy of these designs is verified through simulations and hardware implementation.

ISBN: 9781321646009Subjects--Topical Terms:

454503
Electrical engineering.

Linear voltage and current mode control for the DC-DC buck converter.
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245 1 0 $a Linear voltage and current mode control for the DC-DC buck converter.
300 $a 88 p.
500 $a Source: Masters Abstracts International, Volume: 54-04.
500 $a Adviser: SRIDHAR SESHAGIRI.
502 $a Thesis (M.S.)--San Diego State University, 2015.
520 $a DC-DC converters are an important class of power converters that find applications in diverse applications such as portable electronic devices (cellular phones and laptop computers), hybrid electric vehicles (HEVs), and interfacing distributed generation (DG) sources such as photovoltaics (PVs) to the electric grid or microgrids. Almost all converters today are switching converters, i.e., contain power semiconductor switches that can be turned ON or OFF at high frequencies to achieve the desired power conversion, and invariably require a controller to meet performance objectives. The switching action makes these hybrid systems, and the relationship between the duty ratio of the switch (control input) and the converter voltage (controlled output) is nonlinear. Classical controller methods can be applied to these hybrid nonlinear switching converters using averaging and linearization. In this thesis, we compare linear voltage mode (that use the converter voltage) and current mode (that use the converter inductor current) designs for fixed frequency pulse width modulation (PWM) DC-DC converters. In addition to classical PID design, we also tune the PID controller gains using an LQR optimal control design that employs a high-gain observer (HGO) to estimate derivatives. The efficacy of these designs is verified through simulations and hardware implementation.
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