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Coordinate control design for system of marine diesel engine generator with propeller loads

Keywords: ship power station,robust control,L2 disturbance attenuation control,backstepping

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One of the main characteristics is the effect of propellers on transient stability of ship power systems. Based on L2 disturbance attenuation control method, this paper investigates the coordinate control design for the excitation and speed regulator of ship power systems with propeller loads. Considering nonlinearities and coupling interactions between propeller loads and the marine diesel engine generator, we propose an integrated control scheme combining backstepping technique with L2 disturbance attenuation method. The controller not only stabilizes the system but also attenuates the disturbance in uences on the voltage and frequency of the generator. Simulation shows excellent suppression of the effect on the transient performances of the generators when a load is abruptly applied to the propeller.


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