Transient Performance Improvement in the Boundary Control of Boost Converters using Synthetic Optimized Trajectory

This paper focuses on an improvement in the transient performance of Boost converters when the load changes abruptly. This is achieved on the basis of the nature trajectory in Boost converters. Three key aspects of the transient performance are analyzed including the storage energy change law in the inductors and capacitors of converters during the transient process, the ideal minimum voltage deviation in the transient process, and the minimum voltage deviation control trajectory. The changing relationship curve between the voltage deviation and the recovery time is depicted through analysis and simulations when the load suddenly increases. In addition, the relationship curve between the current fluctuation and the recovery time is obtained when the load suddenly decreases. Considering the aspects of an increasing and decreasing load, this paper proposes the transient performance synthetic optimized trajectory and control laws. Through simulation and experimental results, the transient performances are compared with the other typical three control methods, and the ability of proposed synthetic trajectory and control law to achieve optimal transient performance is verified.

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Cite this article

[IEEE Style]

G. Feng, L. Yuan, Z. Zhao, J. Ge, X. Ye, T. Lu, "Transient Performance Improvement in the Boundary Control of Boost Converters using Synthetic Optimized Trajectory," Journal of Power Electronics, vol. 16, no. 2, pp. 584-597, 2016. DOI: 10.6113/JPE.2016.16.2.584.

[ACM Style]

Gaohui Feng, Liqiang Yuan, Zhengming Zhao, Junjie Ge, Xiuxi Ye, and Ting Lu. 2016. Transient Performance Improvement in the Boundary Control of Boost Converters using Synthetic Optimized Trajectory. Journal of Power Electronics, 16, 2, (2016), 584-597. DOI: 10.6113/JPE.2016.16.2.584.