Enhancement of Energy Management in the Shipboard Power Systems Based on Recursive Distributed Load Shedding Model
2019 IEEE Electric Ship Technologies Symposium (ESTS)(2019)
摘要
Distributed energy management has been recognized as a promising solution for fast load scheduling in the ship power systems (SPSs). In the case of a power shortage, a reliable and accurate load shedding mechanism is necessary to avoid losing the significant loads. This paper proposes a distributed energy management framework in SPSs considering the load shedding possibility in the structure. The proposed method is constructed based on a multi-agent distributed consensus-based structure employing the alternating direction method of multipliers (ADMM). Through a recursive distributed formulation, the optimal load scheduling is satisfied and the extra uncharged loads with the least priorities are determined. Due to the nonlinearity of the problem formulation, a new optimization algorithm based on the firefly algorithm is proposed to solve the problem. In addition, a satisfactory modification method is developed to improve the search ability of the algorithm and avoid the premature convergence. A notional SPS is used to validate the performance of the proposed approach.
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关键词
Ship power system,Distributed load shedding,optimization,energy management
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