Paper Info
Title
Right-Half-Plane Zero Elimination of Boost Converter Using Magnetic Coupling with Forward Energy Transfer
Abstract
Control-to-output transfer function of the classical boost converter in continuous conduction mode contains a right-half-plane (RHP) zero that limits its frequency response. In this paper, to eliminate this zero and enhance the dynamic performance, a forward path for energy transfer to output within the <sc xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">on</sc> interval of the power switch is provided using the magnetic coupling. This approach simply eliminates the RHP zero by introducing an inductor coupled to the boost inductor, a diode, and a capacitor into the classical boost topology. In addition, the provided forward path enhances the voltage gain, which makes it possible to achieve a smaller operating duty cycle and reduced voltage stress for the power switch in applications with large voltage conversion ratios. Using this approach does not complicate the control structure, and a traditional single-loop voltage control scheme can be used to regulate the output voltage. The proposed approach is analytically examined by obtaining the averaged state-space model of the resulting converter, and a criterion to eliminate the RHP zero is presented. Experimental results from an implemented laboratory prototype for 48- to 200-V voltage conversion and 100-W nominal power are provided.
Year
DOI
Venue
2019
10.1109/tie.2019.2891408
IEEE Transactions on Industrial Electronics
Keywords
Field
DocType
Inductors,Switches,Couplings,Transfer functions,Circuit topology,Magnetomechanical effects,Energy exchange
Boost converter,Capacitor,Nominal power (photovoltaic),Control theory,Duty cycle,Voltage,Inductor,Engineering,Right half-plane,Topology (electrical circuits)
Journal
ISSN
Citations 
PageRank 
0278-0046
0
0.34
References 
Authors
0
2
Name
Order
Citations
PageRank
Behzad Poorali1273.23
Ehsan Adib26013.85