Modeling of Ship DC Power Grid and Research on Secondary Control Strategy

Compared to alternating current (AC) grids, direct (DC) grids are becoming more and popular. A power distribution approach is suggested in order solve the issue of uneven distributed generation (DG) a ship DC microgrid. Power control carried out using tracking differentiator (TD), while output change rate not greater than maximum ramp permitted by battery, state-of-charge balance attained quickly. The proposed strategy also reduces communication pressure on grid. hierarchical model microgrid based consensus algorithm created validate methodology. simulation results demonstrate that established capable simulating accurately, states charge values five batteries gradually converge under adjustment secondary strategy, reasonable efficient.