|
|
|
| Stability Analysis for Superbuck Circuit |
| Jia Pengyu, Trillion Q Zheng, Li Yan |
| Beijing Jiaotong University Beijing 100044 China |
|
|
|
|
Abstract Superbuck converter whose input and output currents are continuous belongs to the high-order converter. When the parameters of the circuit are not properly matched, Right Half Plane (RHP) zeros will appear in the small signal model of the converter so that it brings difficulties to the design of the control system. To avoid the existence of RHP zeros in the model, the damping network consisting of the resistor and capacitor is added to the converter so that the stability of the converter can be ensured. The relation between RHP zeros and the parameters of the main circuit without the damping network is analyzed and the constraints of parameter design for avoiding RHP zeros are proposed. Then the converter with the damping network is analyzed and it shows that when the damping is properly designed, RHP zeros can be avoid without considerations of the main circuit parameters so that the control system can be easily designed. The conclusions are verified by the model analysis and the experiment results.
|
|
Received: 20 September 2012
Published: 12 December 2013
|
|
|
|
|
|
[1] Tymerski R, Vorperian V. Generation and classification of PWM DC-to-DC converters[J]. IEEE Transactions on Aerospace and Electronic Systems, 1988, 24(6): 743-754.
[2] Capel A, Spruyt H, Weinberg A. A versatile zero ripple topology[C]. IEEE Power Electronics Specialists Conference, 1988, 1(1): 133-141.
[3] Grigore V, Kyyra J. A step-down converter with low ripple input current for power factor correction[C]. IEEE Applied Power Electronics Conference and Exposition, 2000, 1(1): 188-194.
[4] Weaver W W, Krein P T. Analysis and applications of a current-sourced Buck converter[C]. IEEE Applied Power Electronics Conference, 2007: 1664-1670.
[5] Suntio T, Leppa?aho J, Huusari J. Issues on solar-generator-interfacing with voltage-fed converter[C]. IECON '09. 35th Annual Conference of IEEE, 2009: 595-600.
[6] Karppanen M, Arminen J, Suntio T. Dynamical modeling and characterization of peak-current- controlled Superbuck converter[J]. IEEE Transactions on Power Electronics, 2008, 23(3): 1370-1380.
[7] Leppa?aho J, Huusari J, Suntio T. Dynamic analysis of PCM-controlled coupled-inductor superbuck converter[C]. IEEE Power Electronics and Applications, 2009: 1-10.
[8] Hamill D C, Krein P T. A `zero' ripple technique applicable to any DC converter[C]. IEEE Power Electronics Specialists Conference, 1999, 1(2): 1165-1171.
[9] Croci L, Marana C, Poli A. Artemis power subsystem design and performances[C]. Proceedings of the 4th European Space Power Conference, 1995: 175-180.
[10] Jensen H, Laursen J. Power conditioning unit for rosettamars express[C]. Proceedings of the 6th European Space Power Conference, 2002.
[11] Bao Zhiyun, Hu Jie, Wang Mingyan, Low input current ripple battery charging regulator based on coupled-inductor[C]. International Conference on Power System Technology, 2010: 1-4.
[12] Soto A, Lapena E, Otero J. High performance and reliable MPPT solar array regulator for the low mass pcdu of lisa pathfinder[C]. Proceedings of the 8th European Space Power Conference, 2008.
[13] Calvente J, Martinez Salamero L, Garces P. Dynamic optimization of bidirectional topologies for battery charge/discharge in satellites[C]. IEEE Power Electronics Specialists Conference, 2001: 1994-1999.
[14] Perol P, An efficient low cost modular power system for fully regulated bus in low earth orbit applications [C]. Proceedings of the 6th European Space Power Conference, 2002: 375-381.
[15] Karppanen M, Suntio T, Sippola M. PCM-controlled superbuck converter with super performance and surprises[C]. IEEE Power Electronics Specialists Conference, 2008: 3206-3212.
[16] Tonicello F, The control problem of maximum point power tracking in power systems[C]. Proceedings of the 7th European Space Power Conference, 2005.
[17] Calvente J, Martinez-Salamero L, Garces P. Zero dynamics-based design of damping networks for switching converters[J]. IEEE Transactions on Aeros- pace and Electronic Systems, 2003, 39(4): 1292-1303.
[18] R W Erickson, D Maksimovic. Fundamentals of Power Electronics[M]. Norwell, MA: Kluwer (Academic), 2001. |
|
|
|
2013, Vol. 28 
