Proceedings ArticleDOI
An improved converter control design for time-varying voltage reference tracking
Subhransu Satpathy,N. Lakshminarasamma +1 more
- pp 1-6
TLDR
In this paper, a sliding surface consisting of both voltage and current error is presented based on the discrete time state-space model of the system for tracking sinusoidal and triangular voltage reference signals.Abstract:
Small-signal modeling technique fails in capturing operating point variation in a dc-dc converter model. A sample average current mode controller design is used to highlight this difficulty for a time-varying voltage reference tracking problem. Sliding mode controller design based on the large signal model of the system is studied as an alternative for such problems. A sliding surface consisting of both voltage and current error is presented based on the discrete time state-space model of the system. Simulation and experimental results validate the performance of sliding mode controller in a boost converter for tracking sinusoidal and triangular voltage reference signals. The performance of the system under load variations is also presented.read more
References
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Discrete-time variable structure control systems
Weibing Gao,Yufu Wang,A. Homaifa +2 more
TL;DR: This paper presents a treatment of discrete variable structure control systems, and a recently introduced "reaching law approach" is conveniently used to develop the control law for robust control.
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On the practical design of a sliding mode voltage controlled buck converter
TL;DR: This paper presents a simple and systematic approach to the design of a practical sliding mode voltage controller for buck converters operating in continuous conduction mode.
Journal ArticleDOI
A unified approach to the design of PWM-based sliding-mode voltage controllers for basic DC-DC converters in continuous conduction mode
TL;DR: A simple unified approach to the design of fixed-frequency pulsewidth-modulation-based sliding-mode controllers for dc-dc converters operating in the continuous conduction mode is presented.
Journal ArticleDOI
A Fast-Response Sliding-Mode Controller for Boost-Type Converters With a Wide Range of Operating Conditions
TL;DR: It is demonstrated that, with the proposed controller, the boost converter has a faster response and a lower voltage overshoot over a wide range of operating conditions as compared to that under the widely used peak current-mode controller.
Journal ArticleDOI
A fixed-frequency pulsewidth modulation based quasi-sliding-mode controller for buck converters
TL;DR: In this paper, the design and analysis of a PWM-based quasi-sliding-mode voltage controller for buck converters from a circuit design perspective is presented. And a practical design approach that aims at systematizing the procedure for the selection of the control parameters is presented in addition to a simple analog form of the controller for practical realization.