Research on Stability of Ship Power Grid based on Supercapacitor

Deyun Mao ； Jianmei Xiao ； Xihuai Wang

《International Core Journal of Engineering》 7卷5期 (2021/05) Pp. 588-596

https://doi.org/10.6919/ICJE.202105_7(5).0073

摘要

In order to solve the problem of power fluctuation at bus terminal of power grid caused by sudden change of load, a double closed-loop PI control strategy is proposed. Firstly, a hybrid ship model with super-capacitor is built in Matlab/Simulink. Then, a double closed-loop controller is designed in the DC/DC converter to control the charging and discharging of the super-capacitor, so that the supercapacitor can quickly compensate the energy of the ship grid bus and absorb the excess energy for storage. The simulation results show that the super-capacitor can effectively smooth the power fluctuation of marine power grid bus, provide energy for DC bus quickly, maintain bus voltage stability, and keep the speed and output active power of diesel generator set stable.

關鍵字

Diesel Generator Set ； Super-capacitor ； Double Closed Loop PI Control ； Power Fluctuation

參考文獻

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