Publications       Rudy Negenborn
Associate Professor
Director of Studies MSc TIL
Team & Themes

Title:Parallel control for hybrid propulsion of multifunction ships
Authors:R.D. Geertsma, R.R. Negenborn, K. Visser, J.J. Hopman

Conference:IFAC 2017 World Congress (IFAC 2017 WC)
Address:Toulouse, France
Date:July 2017

Abstract:Multifunction ships and naval vessels in particular need to reduce fuel consumption while maintaining manoeuvrability. Hybrid propulsion that runs a main diesel engine and electric drive in parallel can achieve this. However, a parallel control strategy needs to be developed. In this paper, we use a simulation model of a hybrid propulsion system model to investigate the parallel control of diesel mechanical and electrical propulsion for multifunction ships. For the case study frigate, parallel control can increase the ship top speed with 3 kts when using a 4 MW electric drive and a 10 MW main diesel engine. The diesel engine speed control with electric drive torque control strategy increases the ship acceleration rate with 17% and reduces the average engine thermal loading with 150 K. Moreover, the electric drive speed control with diesel engine torque control strategy can improve the acceleration rate by 40%, while eliminating thermal loadng uctuation, and also reducing engine average thermal loading with 150 K. Future combination of the proposed electric drive speed control strategy with an adaptive pitch control strategy can potentially further increase hybrid propulsion plant performance.

Reference:R.D. Geertsma, R.R. Negenborn, K. Visser, J.J. Hopman. Parallel control for hybrid propulsion of multifunction ships. Accepted for the IFAC 2017 World Congress (IFAC 2017 WC), Toulouse, France, July 2017.
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