The fuel cell system (FCS) is commonly combined with an energy storage (ESS) for enhancing the performance of ship. Consequently, battery ESS size and power allocation strategy are critical hybrid system. This paper focuses on designing a method to solve these two problems. First, degradation model employed assess lifetime. Subsequently, sizing problem optimal integrated into cost-minimization ...

To solve the complex thrust allocation problems of dynamic positioning ship with azimuth thrusters, the quadratic programming thrust allocation and management system was built. The power optimal thrust allocation was formulated as a quadratic programming problem by the linear treatments of inequality constraints and the optimal solution could be found in a finite amount of time. And some influe...

A neural network-based model reference adaptive control approach (MRAC) for ship steering systems is proposed in this paper. For the nonlinearities of ship steering system, performances of traditional adaptive control algorithms are not satisfactory in fact. The presented MRAC system utilizes RBF neural network to approximate the unknown nonlinearities in order to get a high adaptive control pe...

This paper describes fundamental characteristics of high frequency induction heating applied for Marine Fuel Oil (MFO) recovery system. The system is analyzed for an induction-heating load, related to operating frequency and input power. Frequency domain characteristics of load equivalent circuit parameters in induction heating are investigated to clarify an effective circuit design of the high...

In recent decades, the design of ship propulsion systems has been focusing on energy efficiency and low pollutant emissions. this framework, diesel–electric become a standard for many types proven its worth flexible management. This paper presents an approach to optimal systems, minimising fuel consumption while meeting power speed requirements. A genetic algorithm performs optimisation, used d...

The ship main engine speed control system is a typical nonlinear system and it is uncertain characteristics, It is influenced by the wind, wave, flow etc. So it is difficulted to designed the diesel engine mathematical model. This paper presents a nonlinear mathematical model of ship main engine. Because the active disturbance rejection controller does not depend on the mathematical model of th...

The Virtual Test Bed (VTB) is a software environment that supports design, analysis, and virtual prototyping of electric power systems, with an emphasis on naval applications. This paper describes the status of development of the VTB and its use in the multi-technical field of ship power systems.