具有快速负载瞬态响应的开关变换器数字均值电压控制方法

doi:10.19595/j.cnki.1000-6753.tces.161008

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Abstract A novel digital average voltage (DAV) control technique for switching converter with fast load transient response is proposed. Taken Buck converter as an example, the principle of DAV controlled switching converter is introduced, and its z-domain model is established to investigate system stability. Moreover, its stability and load transient performance are analyzed, and the comparisons with digital V² controlled buck converter are carried out. The results show that DAV controlled buck converter has better stability, which can work stably in the whole range of duty ratio. Moreover, the load transient performance of DAV control is better than that of digital V² control. Finally, the correctness of the theoretical analysis is proved by simulation and experimental results.

Key words： Average voltage control digital control load transient response z-domain modeling

Received: 06 July 2016 Published: 05 March 2018

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TM46

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	Articles by authors
	Zhang Wei
	Zhou Guohua
	Liu Xiaotian
	Xu Shungang

Cite this article:

Zhang Wei,Zhou Guohua,Liu Xiaotian等. Digital Average Voltage Control Technique for Switching Converter with Fast Load Transient Response[J]. Transactions of China Electrotechnical Society, 2018, 33(4): 856-864.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.161008 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I4/856

[1] 张炳达, 袁奎. 一种基于自适应预测控制的电流型数字功率放大器[J]. 电工技术学报, 2015, 30(16): 162-167.
Zhang Bingda, Yuan Kui.A current digital power amplifier based on self-adaptive predictive control[J]. Transactions of China Electrotechnical Society, 2015, 30(16): 162-167.
[2] 徐申, 王青, 孙大鹰, 等. 一种具有快速动态响应的新型数字PFC控制器[J]. 电工技术学报, 2014, 29(12): 88-94.
Xu Shen, Wang Qing, Sun Daying, et al.A new digital Boost PFC controller with fast dynamic response[J]. Transactions of China Electrotechnical Society, 2014, 29(12): 88-94.
[3] Duan Y, Jin H.Digital controller design for switch mode power converters[C]//IEEE Applied Power Elecetronics Conference and Exposition, Dallas, 1999: 967-973.
[4] Mammano R.Switching power supply topology voltage mode vs. current mode[M]. Unitrode Design Note, 1994.
[5] Mitchell D M.An analytical investigation of current- injected control for constant-frequency switching regulators[J]. IEEE Transactions on Power Elec- tronics, 1986, 1(3): 167-174.
[6] Deisch C W.Simple switching control method changes power converter into a current source[C]// IEEE Power Electronics Specialists Conference, New York, 1978: 300-306.
[7] Goder D, Pelletier W.V² architecture provides ultra-fast transient response in switch mode power supplies[C]//Proceedings of High Frequency Power Conversion, Las Vegas, 1996: 19-23.
[8] He M, Xu J, Zhou G, et al.Investigation of sub-harmonic oscillation of digital control switching DC-DC converters[C]//IEEE International Symposium on Industrial Electronics, Vigo, 2007: 754-758.
[9] 田锦明, 王松林, 来新泉, 等. 峰值电流控制模式中的分段线性斜坡补偿技术[J]. 电子器件, 2006, 29(3): 864-867.
Tian Jinming, Wang Songlin, Lai Xinquan, et al.Technology of piecewise linear slope compensation in peak current-mode controlled circuit[J]. Chinese Journal of Electron Devices, 2006, 29(3): 864-867.
[10] Feng G, Meyer E, Liu Y F.A new digital control algorithm to achieve optimal dynamic performance in DC-to-DC converters[J]. IEEE Transactions on Power Electronics, 2007, 22(4): 1489-1498.
[11] 赵晋斌, 戴剑丰, 屈克庆. 基于电容电荷平衡的滞环控制策略[J]. 电工技术学报, 2015, 30(16): 63-69.
Zhao Jinbin, Dai Jianfeng, Qu Keqing.A hysteresis control strategy based on capacitor charge balance[J]. Transactions of China Electrotechnical Society, 2015, 30(16): 63-69.
[12] 周国华, 许建平. 开关变换器数字控制技术[M]. 北京: 科学出版社, 2011.
[13] Peterchev A V, Xiao J, Sanders S R, Architecture and IC implementation of a digital VRM controller[J]. IEEE Transactions on Power Electronics, 2003, 18(1): 356-364.
[14] Erickson R W, Masksimovic D.Fundamentals of power electronics[M]. Sercaucus, NJ: Kluwer Academic Publishers, 2000.
[15] Van de Sype D M, Gussemé K D, Van den Bossche A P, et al. Small-signal z-domain analysis of digitally controlled converters[C]//IEEE Power Electronics Specialists Conference, Aachen, 2004: 4299-4305.
[16] 张笑天, 马西奎, 张浩. 数字控制DC-DC Buck变换器中低频振荡现象分析[J]. 物理学报, 2008, 57(10): 6174-6181.
Zhang Xiaotian, Ma Xikui, Zhang Hao.Low-frequency oscillation in digitally controlled DC-DC Buck con- verters[J]. Acta Physica Sinica, 2008, 57(10): 6174-6181.