Electrical Power Management in Shipboard Power Grids Using Distributed Predictive Control Method
Subject Areas : مهندسی برق و کامپیوتر
Saeed Navabi
1
,
Mahdi Mosayebi
2
,
Mohammad Reza Alizadeh Pahlavani
3
,
Arash Dehestani Kolagar
4
1 - Faculty of Elec. and Com. Eng., Malek Ashtar University of Technology, Tehran,
2 - Faculty of Elec. and Com. Eng., Malek Ashtar University of Technology, Tehran,
3 - Faculty of Elec. and Com. Eng., Malek Ashtar University of Technology, Tehran,
4 - Faculty of Elec. and Com. Eng., Malek Ashtar University of Technology, Tehran,
Keywords: Power management, shipboard power system, distributed predictive control, energy storage.,
Abstract :
In this paper, a distributed control structure for power management in a shipboard power system (SPS) with nonlinear DC voltage is presented. The distributed control architecture has the advantages of lower computational burden, high flexibility, and good fault tolerance. In this topology, each subsystem is controlled by a model predictive controller using local state variables and parameters as well as interactive variables from other subsystems that are shared through a coordinator. At the master coordinator level, an optimization problem is solved iteratively to achieve the minimum error in the output voltage and the optimal state. The effectiveness of the proposed distributed control structure is demonstrated for the auxiliary power generation section of the shipboard power system, which is related to the DC-DC converter section used as the energy storage module. The correct performance is demonstrated by simulation results, and performance analysis in comparison with other converter control methods, such as proportional control, considering the system characteristics is also shown in the results comparison section.