Year-end Sale % OFF 
Abstract
This paper presents an enhanced sliding mode controller (SMC) operation, chattering analysis and loading conditions of the SMC DC-DC buck converter. Sliding mode portion, chattering attenuation are analyzed by using a conventional and proposed reaching law in buck converter. A proposed tan hyperbolic reaching law (THRL) is originated to be useful in terms of chattering mitigation and fast convergence. The major drawback of the conventional reaching law viz, it bypasses the main portion of the sliding mode portion to ensure fast reaching. It causes more chattering, more time to reach the steady state on the switching surface. The most significant improvement of SMC is that it guarantees strengthening the sliding mode phase. The proposed tan hyperbolic reaching law is being hit here during an exponential adjustment so that the attributes of it, covers complete sliding mode portion, chattering mitigation and fast reaching time. In turn, cause fewer switching loss in the buck converter. Even external disturbances and uncertainty of the system occurs. The loading conditions are applied to proposed tan hyperbolic reaching law and analyzed. Simulation analysis conducted by MATLAB/Simulink.
Highlights
Sliding mode variable structure systems is an applied to nonlinear systems design technique, it evolved from the variable structure control (VSC) and is established in the field of nonlinear control
Analysis and designing of sliding mode controller variable structure of dc-dc buck converter using reaching laws The Figure 1 shows the schematic diagram of the DC-DC buck converter model
It is experiential that the proposed method (Tan Hyperbolic reaching law) gives better results than the constant plus proportional rate reaching law Figure 2
Summary
Sliding mode variable structure systems is an applied to nonlinear systems design technique, it evolved from the variable structure control (VSC) and is established in the field of nonlinear control. SMC (sliding mode structure) is inherently suitable for fast switching operations in power electronic systems. In [1] control applications and drawbacks of the control methods of reaching sliding surfaces, various sliding surfaces that can be explained and implemented through sliding mode variable. In [4] higher-order sliding modes are accessible as an apparatus to take away discontinuity from the control action, to deal with upper relation degree systems and to recover the accuracy of the real sliding mode behavior when the discrete-time implementation. In [5] this research a novel reaching law (RL) is projected that use inverse hyperbolic function (IHF) as an alternative of the signum function for switching
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Bulletin of Electrical Engineering and Informatics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
