Research on Bus Voltage Stability of ISOP DAB Converter in Marine Medium Voltage DC Power System

Mingyang Xu ； Zhengxi Gu

《International Core Journal of Engineering》 7卷3期 (2021/03) Pp. 288-299

https://doi.org/10.6919/ICJE.202103_7(3).0040

摘要

Aiming at the requirements of voltage level conversion between the medium voltage DC bus and the low voltage DC bus of the ship's medium voltage direct current power (MVDC) system, this paper proposes an input series output parallel (ISOP) dual active bridge isolated DC-DC converter (DAB), suitable for ship medium voltage DC distribution network. It adopts three closed-loop control of input voltage equalization, output voltage and current. By controlling the shift of DAB, the medium voltage level is smoothly transformed to the low voltage level, and the simulation verifies that the power electronic converter is effective in the medium voltage DC power system Less impact on stability, and quick response to emergencies. Therefore, the ISOP type DAB converter is beneficial to the stability of the DC bus voltage.

關鍵字

MVDC ； ISOP ； DAB ； Three Closed-Loop Control ； Fast Response ； DC Bus

參考文獻

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