Title :
Interaction analysis and integrated control of hybrid energy storage and generator control system for electric ship propulsion
Author :
Jun Hou ; Jing Sun ; Hofmann, Heath
Author_Institution :
Dept. of Naval Archit. & Marine Eng., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
Ship propulsion systems experience large power and torque fluctuations on their drive shaft due to hydrodynamic interactions and wave excitation. For electric propulsions, a hybrid energy storage system (HESS) could be an effective solution to address the negative impact of these fluctuations. However, the HESS, when introduced into the existing shipboard electrical propulsion system, will interact with the power generation control systems. In this paper, a model-based analysis is performed to evaluate the interactions of the multiple power sources when a hybrid energy storage system is incorporated. The study has revealed undesirable interactions when the controls are not coordinated properly, and leads to the conclusion that a system-level energy management strategy (EMS) will be needed. To evaluate the benefits of the system-level EMS, a comparative study is performed, and results show that the system-level EMS has advantages over other strategies in terms of many of the performance metrics.
Keywords :
electric generators; electric propulsion; electric vehicles; energy management systems; energy storage; hybrid power systems; machine control; marine power systems; power generation control; HESS; drive shaft; generator control system; hybrid energy storage system; hydrodynamic interactions; integrated control system; interaction analysis; model-based analysis; multiple power sources; power generation control systems; shipboard electrical propulsion system; system-level EMS; system-level energy management strategy; torque fluctuations; wave excitation; Batteries; Energy management; Generators; Induction motors; Marine vehicles; Propulsion; Voltage control;
Conference_Titel :
American Control Conference (ACC), 2015
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4799-8685-9
DOI :
10.1109/ACC.2015.7172116