The study of energy model and multi-period of discrete phase shift control technique for full-bridge DC-DC converter

Sha Jin; Xu Jian-Ping; Chen Yi-Ming

doi:10.7498/aps.64.108401

Abstract

Phase-shift full-bridge (PSFB) DC-DC converter benefits from high efficiency by zero-voltage switching turn-on of all switches without any additional auxiliary circuit, and PSFB DC-DC converter has been widely used in high power applications. In this paper, the operating mode of PSFB DC-DC converter is studied, and the energy iteration model of PSFB DC-DC converter is established. The discrete phase shift (DPS) control technique for PSFB DC-DC converter is proposed and discussed. Unlike the conventional PWM PSFB control technique, the DPS control technique uses two preset phase shift times tpsH and tpsL as control variables where 0tpsHtpsL ≤Tw with Tw being the switching period. When output voltage is lower than the reference voltage, phase shift time tpsH is selected, and a large duty cycle DH is obtained on the secondary side, which makes output voltage increase. Similarly, when output voltage is higher than the reference voltage, phase shift time tpsL is selected, and a small duty cycle DL is obtained on the secondary side, which makes output voltage decrease. With the energy iteration model, the energy iteration process is clearly revealed, steady-state and transient performances are studied. From the analysis results it can be known that the DPS controlled PSFB DC-DC converter always operates in a multi-periodic state. The simulation reasults show that the proposed control technique has an advantage over the conventional PWM PSFB control technique in simple design, great robust and excellent transient performance.

Keywords:

Authors and contacts

1.
Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle, Ministry of Education, School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
Funds: Project supported by the National Natural Science Foundation of China (Grant No. 51177140), the Fundamental Research Funds for the Central Universitie, China (Grant No. 2682013ZT20) and 2013 Cultivation Program for the Excellent Doctoral Dissertation of Southwest Jiaotong University.

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Cited By

[1]	Hua G, Lee F C 1995 IEEE Trans. Ind. Electron. 42 595
[2]	Bellar M D, Wu T S, Tchamdjou A, Mahdavi J, Ehsani M 1998 IEEE Trans. Ind. Electron. 34 847
[3]	Smith K M, Smedley K M 1997 IEEE Trans. Power Electron. 12 376
[4]	Ming X, Yuancheng R, Zhou J, Lee F C 2005 IEEE Trans. Power Electron. 20 997
[5]	Yungtaek J, Jovanovic M M, Yu M C 2003 IEEE Trans. Power Electron. 18 1122
[6]	Gwan B K, Gun W M, Myung J Y 2005 IEEE Trans. Ind. Electron. 52 228
[7]	Lin R L, Hong Z C 2012 Industry Applications Society Annual Meeting (IAS) Las Vegas, NV, Oct. 7-11, 2012 p1
[8]	Guo Z, Sha D, Liao X, Luo J 2014 IEEE Trans. Power Electron. 29 5081
[9]	Hsieh Y C, Huang C S 2011 IET Power Electron. 4 242
[10]	Yadav G N B, Narasamma N L 2014 IEEE Trans. Power Electron. 29 4538
[11]	Vlatkovic V, Sabate J A, Ridley R B, Lee F C, Cho B H 1992 IEEE Trans. Power Electron. 7 128
[12]	Schutten M J, Torrey D A 2003 IEEE Trans. Power Electron. 18 659
[13]	Yin L L, Chen Q H, Peng B, Wang J, Ruan X B 2007 Proc. IEEE PESC Orlando, FL, June 17-21, 2009 p1721
[14]	Young D K, Kyu M C, Duk Y K, Gun W M 2013 IEEE Trans. Power Electron. 28 3308
[15]	Jong W K, Duk Y K, Chong E K, Gun W M 2014 IEEE Trans. Power Electron. 29 1562
[16]	Li X, Li Y 2014 IEEE Trans. Power Electron. 29 2661
[17]	Lei B, Xiao G C, Wu X L, Qi Y R 2011 Acta Phys. Sin. 60 090501 (in Chinese) [雷博, 肖国春, 吴旋律, 齐元瑞 2011 物理学报 60 090501]
[18]	Liu H C, Su Z X 2014 Acta Phys. Sin. 63 010505 (in Chinese) [刘洪臣, 苏振霞 2014 物理学报 63 010505]
[19]	Lei B, Xiao G C, Wu X L 2013 Chin. Phys. B 22 060509
[20]	Wang F Q, Ma X K 2013 Chin. Phys. B 22 120504
[21]	Sha J, Xu J P, Liu S H, Zhong S 2014 Acta Phys. Sin. 63 098401 (in Chinese) [沙金, 许建平, 刘姝晗, 钟曙 2014 物理学报 63 098401]

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Catalog

Vol. 64, Issue 10 - 2015-05-20

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