Mode Switching Smooth Control of Transient Process of Grid-Connected 400 Hz Solid-State Power Supply System

Jun-Jie Zhu; Zi-Ling Nie; Yin-Feng Zhang; Yi Han

Mode Switching Smooth Control of Transient Process of Grid-Connected 400 Hz Solid-State Power Supply System

Vol. 16, No. 6, pp. 2327-2337, Nov. 2016

10.6113/JPE.2016.16.6.2327

400 Hz solid-static power supply

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Abstract

The mode-switching control of transient process is important to grid-connected 400 Hz solid-state power supply systems. Therefore, this paper analyzes the principle of on-grid and islanding operation of the system with or without local loads in the grid-connected process and provides a theoretical study of the effect of different switching sequences on the mode-switching transient process. The conclusion is that the mode switch (MS) must be turned on before the solid-state switch (STS) in the on-grid process and that STS must be turned off before the MS in the off-grid process. A strategy of mode-switching smooth control for transient process of the system is proposed, including its concrete steps. The strategy utilizes the average distribution of peak currents and the smooth adjustment of peak currents and phases to achieve a no-shock grid connection. The simulation and experimental results show that the theoretical analysis is correct and that the method is effective.

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Cite this article

[IEEE Style]

J. Zhu, Z. Nie, Y. Zhang, Y. Han, "Mode Switching Smooth Control of Transient Process of Grid-Connected 400 Hz Solid-State Power Supply System," Journal of Power Electronics, vol. 16, no. 6, pp. 2327-2337, 2016. DOI: 10.6113/JPE.2016.16.6.2327.

[ACM Style]

Jun-Jie Zhu, Zi-Ling Nie, Yin-Feng Zhang, and Yi Han. 2016. Mode Switching Smooth Control of Transient Process of Grid-Connected 400 Hz Solid-State Power Supply System. Journal of Power Electronics, 16, 6, (2016), 2327-2337. DOI: 10.6113/JPE.2016.16.6.2327.