Title: Multi-objective optimisation of ship microgrid research based on priority selective control strategy of diesel generator and energy storage

Authors: Liao Weiqiang; Zhang Rencheng; Wu Defeng; Yu Wanneng; Yang Kai

Addresses: Key Laboratory of Process Monitoring and System Optimization for Mechanical and Electrical Equipment (Huaqiao University), Fujian Province University, Fujian Province, China; School of Marine Engineering, Jimei University, Xiamen, 361021, China ' Key Laboratory of Process Monitoring and System Optimization for Mechanical and Electrical Equipment (Huaqiao University), Fujian Province University, Fujian Province, China ' School of Marine Engineering, Jimei University, Xiamen, 361021, China ' School of Marine Engineering, Jimei University, Xiamen, 361021, China ' Key Laboratory of Process Monitoring and System Optimization for Mechanical and Electrical Equipment (Huaqiao University), Fujian Province University, Fujian Province, China

Abstract: This paper's research objective is to investigate an independent ship with wind-solar-diesel-battery hybrid energy using real-time variations of energy source components in energy storage systems. The costs of fuel, and sewage and real-time output cost of a diesel generator set and energy storage system are also considered. Firstly, this paper investigates the critical output point of energy storage systems under a dynamic load, to determine the priority of energy storage control strategy. Secondly, this paper investigates the issue of power supply optimisation. A three objective optimisation design model is proposed, which includes the cost of the whole life cycle of the system, the microgrid capacity loss and the pollutant treatment cost. This paper also uses the NSGA-II algorithm which is used to investigate the numerous aspects of independent ship microgrid optimisation, while influencing different power combinations and energy control strategies. The results show that the method is accurate and effective.

Keywords: ship microgrid; priority selective strategy of diesel generator and energy storage; critical output point; power optimisation; NSGA-II.

DOI: 10.1504/IJCAT.2019.098594

International Journal of Computer Applications in Technology, 2019 Vol.59 No.3, pp.193 - 204

Available online: 22 Mar 2019 *

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