A Novel Scheme of Constant Current Control Strategy Based on State Feedback Linearization for Buck-derived DC/DC Converter

被引：0
作者：
Liu Z. [1 ]
Xu H. [2 ]
Zhang Z. [2 ]
Yang C. [1 ]
机构：
[1] University of Chinese Academy of Sciences, Haidian District, Beijing
[2] Institute of Electrical Engineering, Chinese Academy of Sciences, Haidian District, Beijing
来源：
| 2017年 / Chinese Society for Electrical Engineering卷 / 37期
关键词：
Buck-derived converter; Current-constant control; Nonlinear control; State feedback linearization;
D O I：
10.13334/j.0258-8013.pcsee.160068
中图分类号：
学科分类号：
摘要：
In the switching mode power supply (SMPS) with two-stage cascaded structure, the low-frequency input voltage fluctuation introduced by front-stage lead to the fluctuated output current at the output port of the second stage. To solve the problem, firstly a general nonlinear large signal average model for Buck and Buck-derived circuits were developed. On the basis of this, the exact state feedback linearization of affine nonlinear system was carried out making use of the theory of differential geometry, the corresponding nonlinear coordinate transformation matrix and state feed-back expressions are obtained. Combined with PI controller which is easily implemented, the output current ripple caused by input voltage perturbation is analyzed and theoretical analysis shows that input voltage perturbation has no impact on output current. Compared to the average current mode (ACM), the proposed control behaves better in inhibition of output current ripple caused by input voltage perturbation when input voltage varies in a large scale. In addition, the system's adjusting time is short enough. The conclusion can be generally applied in engineering. © 2017 Chin. Soc. for Elec. Eng.
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页码：628 / 634
页数：6
相关论文
共 18 条
  • [1] Luo X., Research on Bifurcation Behavior and Chaos Control in DC-DC Converter, pp. 1-25, (2012)
  • [2] Hu Y., Nonlinear control systems theory and applications, pp. 68-105, (2002)
  • [3] Ma X., Liu W., Zhang H., Analysis of intermittent bifurcations and chaos phenomena in Boost PFC converters, Proceedings of the CSEE, 25, 5, pp. 61-67, (2005)
  • [4] Orabi M., Ninomiya T., Jin C., New formulation for stability analysis of power factor correction converters, IEEE International Power Electronics Congress(CIEP 2002. VIII.), pp. 33-38, (2002)
  • [5] Wong S.C., Tse C.K., Orabi M., Et al., The method of doubling averaging:an approach for modeling power- factor-correction switching converters, IEEE Trans. on Circuits and Systems I, 53, 2, pp. 454-462, (2006)
  • [6] Wang F., Zhang H., Ma X., Analysis of slow-scale instability in boost PFC converter using the method of harmonic balance and floquet theory, IEEE Transactions on Circuits and Systems I:Regular Papers, 57, 2, pp. 405-414, (2010)
  • [7] Zhou Y., Study of sliding-mode control and chaotic dynamics of DC-DC converters, (2001)
  • [8] Deng W., Zhang B., Hu Z., Et al., Research of nonlinear decoupled control law using state variable feedback linearization method based on the CCM Buck converter, Proceedings of the CSEE, 24, 5, pp. 120-125, (2004)
  • [9] Shuai D., Xie Y., Wang X., Optimal control of Buck converter by state feedback linearization, Proceedings of the CSEE, 28, 33, pp. 1-5, (2008)
  • [10] Le J., Xin Y., Hong Q., Et al., Sliding mode control of Boost converter based on exact feedback linearization, Proceedings of the CSEE, 31, 30, pp. 16-23, (2011)
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