ABSTRACT
Wang, G. and Hu, Y., 2020. Intelligent control algorithm of impulse current for two stage wide input marine switching power supply. In: Yang, Y.; Mi, C.; Zhao, L., and Lam, S. (eds.), Global Topics and New Trends in Coastal Research: Port, Coastal and Ocean Engineering. Journal of Coastal Research, Special Issue No. 103, pp. 956–960. Coconut Creek (Florida), ISSN 0749-0208.
In order to solve the problem of large ripple caused by high current pulse load in the operation of conventional ship power network, an intelligent control algorithm for shock current of two-stage wide input switching power supply for ships is proposed. Based on the variation law of disturbance period, the influence of frequency disturbance is analyzed, a steady-state large signal model is established, the small signal disturbance of switch frequency is calculated, the parallel current sharing technology is used to realize the parallel current sharing control of switch power supply, and the intelligent control algorithm of shock current of two-stage wide input ship switch power supply is completed. The experimental results show that, after using the proposed control algorithm, the secondary current and the primary current have a high degree of agreement, which indicates that it can effectively prevent the occurrence of excessive ripple caused by current pulse load.
