Design of linear and nonlinear controller for DC-DC boost converter with right-half plane zero Online publication date: Tue, 21-Dec-2021
by T. Anitha; S. Arulselvi
International Journal of Power Electronics (IJPELEC), Vol. 15, No. 1, 2022
Abstract: A major problem arises in the controller design when the transfer function of control-to-output voltage has right-half plane (RHP) zero. The effect of RHP zero predominates in the transfer functions of boost and buck-boost converters leading to a tedious controller design. Hence in this paper, the design of linear and nonlinear controllers for a DC-DC boost converter is discussed. Since the design of the linear controller (PI) strongly depends on the small signal transfer function of the converters, it leads to poor voltage regulation for wide variation in operating point. To overcome the above said difficulties and to achieve large signal stability, robustness, good dynamic response and simple implementation, an additional inner loop employing sliding mode control (SMC) with boundary layer is proposed in current mode control (CMC) scheme. Extensive simulation studies are carried out for DC-DC boost converter with RHP zero to verify the merits of SMC over PI controller using MATLAB/Simulink software.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Power Electronics (IJPELEC):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook