Distributed Power System Control of New Energy Ship

The power of new energy ship is distributed and unstable. A hierarchical distributed control network of electrical power systems is proposed for new energy ship in this paper. With the introduction of primary control, the system voltage and frequency could be stable, but deviate from the reference values. The secondary controller is designed to eliminate the deviation. Firstly, the linear voltage and frequency models are established by adopting feedback linearization. Then, the distributed cooperative control algorithms of voltages and frequencies in distributed generators (DGs) are designed to make the voltages and frequencies asymptotically converge to their references based on multi-agent theory. In the meanwhile, the active power sharing is achieved. Lastly, establish undirected distributed power network in MATLAB\SIMULINK, and the effectiveness of the proposed control strategy could be verified.