Right-Half-Plane Zero Elimination of Boost Converter Using Magnetic Coupling With Forward Energy Transfer

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 on 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.

[1]  Y. T. Yau,et al.  Two Types of KY Buck–Boost Converters , 2009, IEEE Transactions on Industrial Electronics.

[2]  Frede Blaabjerg,et al.  Family of Step-up DC/DC Converters with Fast Dynamic Response for Low Power Applications , 2016 .

[3]  Robert W. Erickson,et al.  Fundamentals of Power Electronics , 2001 .

[4]  R. Mahanty,et al.  Design and analysis of a modular magnetically coupled quadratic boost topology with a damping network for DC microgrid , 2015, 2015 IEEE Energy Conversion Congress and Exposition (ECCE).

[5]  S. Banerjee,et al.  A Current-Controlled Tristate Boost Converter With Improved Performance Through RHP Zero Elimination , 2009, IEEE Transactions on Power Electronics.

[6]  Dipti Srinivasan,et al.  Dual mode control of tri-state boost converter for improved performance , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[7]  He Liu,et al.  Two-Phase Interleaved Inverse-Coupled Inductor Boost Without Right Half-Plane Zeros , 2017, IEEE Transactions on Power Electronics.

[8]  R. Mahanty,et al.  Magnetically coupled boost converter with enhanced equivalent series resistance filter capacitor for DC microgrid , 2016 .

[9]  Javier Calvente,et al.  Bidirectional High-Efficiency Nonisolated Step-Up Battery Regulator , 2011, IEEE Transactions on Aerospace and Electronic Systems.

[10]  R. M. Bass,et al.  Eliminating the effects of the right-half plane zero in fixed frequency boost converters , 1998, PESC 98 Record. 29th Annual IEEE Power Electronics Specialists Conference (Cat. No.98CH36196).

[11]  Tsorng-Juu Liang,et al.  Analysis of integrated boost-flyback step-up converter , 2005 .

[12]  C. K. Michael Tse,et al.  A Fast-Response Sliding-Mode Controller for Boost-Type Converters With a Wide Range of Operating Conditions , 2007, IEEE Transactions on Industrial Electronics.

[13]  O. Garcia,et al.  Analysis and design considerations for the right half -plane zero cancellation on a boost derived dc/dc converter , 2008, 2008 IEEE Power Electronics Specialists Conference.

[14]  Tae-Jin Kim,et al.  High boost converter using voltage multiplier , 2005, 31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005..

[15]  Santanu Mishra,et al.  A Magnetically Coupled Feedback-Clamped Optimal Bidirectional Battery Charger , 2013, IEEE Transactions on Industrial Electronics.

[16]  Tsorng-Juu Liang,et al.  Novel high-efficiency step-up converter , 2004 .

[17]  P. Perol,et al.  A new energy transfer principle to achieve a minimum phase & continuous current boost converter , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[18]  Dan M. Sable,et al.  Use of leading-edge modulation to transform boost and flyback converters into minimum-phase-zero systems , 1991 .

[19]  Wenzhong Gao,et al.  Closed-Loop Analysis and Cascade Control of a Nonminimum Phase Boost Converter , 2011, IEEE Transactions on Power Electronics.

[20]  L. Martinez-Salamero,et al.  Using magnetic coupling to eliminate right half-plane zeros in boost converters , 2004, IEEE Power Electronics Letters.

[21]  R. Giral,et al.  A Noninverting Buck–Boost DC–DC Switching Converter With High Efficiency and Wide Bandwidth , 2011, IEEE Transactions on Power Electronics.

[22]  Donglai Zhang,et al.  Input/Output Current Ripple Cancellation and RHP Zero Elimination in a Boost Converter using an Integrated Magnetic Technique , 2015, IEEE Transactions on Power Electronics.

[23]  C. Bunlaksananusorn,et al.  Feedback compensation design for switched mode power supplies with a right-half plane (RHP) zero , 2004 .

[24]  Kuo-Hsiung Tseng,et al.  Study on the Corresponding Relationship Between Dynamics System and System Structural Configurations—Develop a Universal Analysis Method for Eliminating the RHP-Zeros of System , 2018, IEEE Transactions on Industrial Electronics.

[25]  Dipti Srinivasan,et al.  A novel tri-state boost converter with fast dynamics , 2002 .

[26]  K.I. Hwu,et al.  KY Converter and Its Derivatives , 2009, IEEE Transactions on Power Electronics.

[27]  Ting-Ting Song,et al.  Boundary Control of Boost Converters Using State-Energy Plane , 2006, IEEE Transactions on Power Electronics.