Propulsion Drive Models for Full Electric Marine Propulsion Systems

Abstract

Integrated full electric propulsion systems are being introduced across both civil and military marine sectors. Standard power system analysis packages cover electrical and electromagnetic components but have limited models of mechanical subsystems and their controllers. Hence, electromechanical system interactions between the prime movers, power network, and driven loads are poorly understood. This paper reviews available models of the propulsion drive system components: the power converter, motor, propeller, and ship. Due to the wide range of time constants in the system, reduced-order models of the power converter are required. A new model using state-averaged models of the inverter and a hybrid model of the rectifier is developed to give an effective solution combining accuracy with speed of simulation and an appropriate interface to the electrical network model. Simulation results for a typical ship maneuver are presented.

Fault Diagnosis of Capacitance Aging in DC Link Capacitors of Voltage Source Inverters Using Evidence Reasoning Rule

“…is propulsion method abandons the traditional way in which the shaft system and propeller are driven by the prime mover and is efficient and energy saving and allows excellent maneuverability and flexible arrangements [22,23]. e most common electric propulsion system is generally powered by diesel generator sets, which provide electric power to propulsion motors through switchboard and frequency converters and which then drives the propellers to generate thrust.…”

Fuel Cell Power Management Using Genetic Expression Programming in All-Electric Ships

“…Therefore, simulation models are used to facilitate the design, system analysis and optimization process in such systems [26]. Priceless research works are reported on the AES modeling [25][26][27][28]; however, these works are based on medium and low range power systems and FC is not considered as the main source of energy. Jaster et al reported a hybrid electric propulsion model that use 150 kW auxiliary FC source that is connected to an AC bus bar.…”

“…However, computational time is the main limiting factor since power electronics inverter and converter models require small modeling step times compared to other sub-systems [26]. Apsley et al proposed to use state-averaged models for the inverters, reduced-order models of the power converters and a hybrid model of the rectifiers to solve issues related to the wide range of modeling time constants [28]. simplified driveline model of an AES consisting of a 1 MW Permanent Magnet Synchronous Motor (PMSM), a PMSM control drive, a three phase Voltage Source Inverter (VSI), a 480 kW Fuel Cell stack and a 144 kWh lithium-ion battery pack are modeled in Simulink using simscape library.…”

High Performances Design of a Six-Phase Synchronous Reluctance Motor Using Multi-Objective Optimization with Altered Bee Colony Optimization and Taguchi Method

“…Compared with others servomotors, the most suitable applications of the six-phase motors are electric, hybrid electric vehicles [1] and ship propulsion [2]. The synchronous reluctance motor is one of highest efficiency and lowest cost motors through the optimal design methods [3,4].…”