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In this paper, the low-frequency oscillation phenomenon in a pulse train (PT) controlled buck converter operating in continuous conduction mode (CCM) is found and studied. The mechanism of this low-frequency oscillation phenomenon and the way to suppress it are studied. The time-domain simulation results and their corresponding phase portraits indicate that the equivalent series resistance (ESR) of the output filter capacitor has a critical effect on this low-frequency oscillation phenomenon. When the ESR is zero or small enough, such a low-frequency oscillation phenomenon appears in the PT controlled CCM buck converter because the output voltage can not be regulated timely. With the increase of ESR, the PT controlled CCM buck converter operates chaotically. The output voltage can be regulated timely and such a low-frequency oscillation phenomenon can be suppressed effectively. Experimental results are provided to verify the theoretical analyses and the simulations.
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Keywords:
- low-frequency oscillation /
- pulse train control /
- buck converter /
- continuous conduction mode
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[17] Wang F Q, Zhang H, Ma X K 2008 Acta Phys. Sin. 57 2842 (in Chinese) [王发强、张 浩、马西奎 2008 物理学报 57 2842]
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[19] Telefus M, Shteynberg A, Ferdowsi M, Emadi A 2004 IEEE Trans. on Power Electronics 19 757
[20] Ferdowsi M, Emadi A, Telefus M, Shteynberg A 2005 IEEE Trans. on Aerospace and Electronic Systems 41 181
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[1] Luo X S, Wang B H, Chen G R, Quan H J, Fang J Q, Zou Y L, Jiang P Q 2003 Acta Phys. Sin. 52 12 (in Chinese) [罗晓曙、汪秉宏、陈关荣、全宏俊、方锦清、邹艳丽、蒋品群 2003 物理学报 52 12]
[2] Lu W G, Zhou L W, Luo Q M 2007 Acta Phys. Sin. 56 5648 (in Chinese) [卢伟国、周雒维、罗全明 2007 物理学报 56 5648]
[3] Zhou Y F, Chen J N, Tse C K, Ke D M, Shi L X, Sun W F 2004 Acta Phys. Sin. 53 3676 (in Chinese) [周宇飞、陈军宁、谢智刚、柯导明、时龙兴、孙伟锋 2004 物理学报 53 3676]
[4] Zhang X T, Ma X K, Zhang H 2008 Acta Phys. Sin. 57 6174 (in Chinese) [张笑天、马西奎、张 浩 2008 物理学报 57 6174]
[5] Bao B C, Liu Z, Xu J P 2009 Chin. Phys. B 18 4742
[6] Zhuo G H, Xu J P, Bao B C 2010 Acta Phys. Sin. 59 2272 (in Chinese) [周国华、许建平、包伯成 2010 物理学报 59 2272]
[7] Bao B C, Liu Z, Xu J P, Zhou G H 2010 Chin. Phys. B 19 03769
[8] Yang R, Zhang B 2006 Acta Phys. Sin. 55 5567 (in Chinese) [杨 汝、张 波 2006 物理学报 55 5567]
[9] Zhao Y B, Zhang D Y, Zhang C J 2007 Chin. Phys. 16 933
[10] Zhao Y B, Luo X S, Fang J Q, Wang B H 2005 Acta Phys. Sin. 54 5022 (in Chinese) [赵益波、罗晓曙、方锦清、汪秉宏 2005 物理学报 54 5022]
[11] Xu F, Xu D G, Liu Y X 2003 Proceeding of the CSEE 23 133 (in Chinese) [许 峰、徐殿国、柳玉秀 2003 中国电机工程学报 23 133]
[12] Tan S C, Lai Y M, Tse C K, Cheung K H 2006 IEEE Trans. on Power Electronics 21 182
[13] So W C, Tse C K, Lee Y S 1996 IEEE Trans. on Power Electronics 11 24
[14] Ofoli A R, Rubaai A 2006 IEEE Trans. on Industry Applications 42 1367
[15] Smedley K M, Cuk S 1996 IEEE Trans. on Power Electronics 11 99
[16] Wang F Q, Zhang H, Ma X K 2008 Acta Phys. Sin. 57 1522 (in Chinese) [王发强、张 浩、马西奎 2008 物理学报 57 1522]
[17] Wang F Q, Zhang H, Ma X K 2008 Acta Phys. Sin. 57 2842 (in Chinese) [王发强、张 浩、马西奎 2008 物理学报 57 2842]
[18] Meyer E, Zhang Z L, Liu Y F 2008 IEEE Trans. on Power Electronics 23 1802
[19] Telefus M, Shteynberg A, Ferdowsi M, Emadi A 2004 IEEE Trans. on Power Electronics 19 757
[20] Ferdowsi M, Emadi A, Telefus M, Shteynberg A 2005 IEEE Trans. on Aerospace and Electronic Systems 41 181
[21] Ferdowsi M, Emadi A, Telefus M, Davis C 2005 IEEE Trans. on Power Electronics 20 798
[22] Khaligh A, Rahimi A M, Emadi A 2007 IEEE Trans. on Vehicular Technology 56 2005
[23] Khaligh A, Emadi A 2008 IEEE Trans. on Aerospace and Electronic Systems 44 766
[24] Ferdowsi M, Emadi A 2005 IEEE Trans. on Industrial Electronics 52 116
[25] Qin M, Xu J P 2009 Acta Phys. Sin. 58 7603 (in Chinese) [秦 明、许建平 2009 物理学报 58 7603]
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