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Abstract
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Article Information:
Design and Robustness Analysis of a PID Based Sliding Mode Controller for a dc-dc Converter
D.M. Mary Synthia Regis Prabha, S. Pushpa Kumar and G. Glan Devadhas
Corresponding Author: D.M. Mary Synthia Regis Prabha
Submitted: 2011 August, 26
Accepted: 2011 October, 07
Published: 2012 February, 15 |
Abstract:
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This study deals with the design and analysis of a dc-dc converter operating in continuous conduction
mode with Proportional-Integral-Derivative control and PID based Sliding Mode Control (SMC). A small signal
model is developed using Switching Flow Graph (SFG) from which the control coefficients for the PID
controller is selected. PID based SMC uses a control law which constrains the weighted sum of the voltage
error, its derivatives and the integral of the voltage error to zero. The equivalent control technique is used in
its design which makes the converter more suitable for fixed frequency operation. Sensitivity of these
controllers to supply voltage disturbances and load disturbances is studied and results are presented.
Key words: dc-dc converter, PID based SMC, PID control, switching flow graph, , ,
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Cite this Reference:
D.M. Mary Synthia Regis Prabha, S. Pushpa Kumar and G. Glan Devadhas, . Design and Robustness Analysis of a PID Based Sliding Mode Controller for a dc-dc Converter. Research Journal of Applied Sciences, Engineering and Technology, (04): 342-349.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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