Abstract The satellite uses an electric propulsion system (EPS) to complete the north-south station-keeping (NSSK) work. Due change of centroid position during whole life period, thrust pointing adjustment is required minimize deviation between vector and centroid, avoid additional interference torque decrease protection efficiency EPS. In this paper, method designed, mathematical model angle e...

Original scientific paper Unexpected severe hull deformation caused by the wave loads would significantly influence the dynamical behaviours of the propulsion system in large scale ships, resulting in degradation of the ship control performance. A new global sliding model control (GSMC) for marine water-hull-propulsion unit systems is proposed to obtain more accurate control performance in this...

The use of ion propulsion for deepspace missions is becoming a reality with the flight ne~l year of the ion-propelled New Millennium Deep Space 1 spacecraft. This event is already stimulating the call for improved ion propulsion technologies, a trend which is expected to continue. This paper describes the examination of advanced solar electric propulsion technologies to determine their potentia...

the already multiple DC-links already existing in all propulsion and thruster drives accomplishing for usually more than 80% of the electrical power consumption on electric propulsion vessels. This extension means that we keep all the good and well proven products already used in today’s electric ships like AC generators, inverter modules, AC motors, etc. All main AC SWBDS and transformers are ...

This paper presents a systems model for racing wheelchair propulsion. Recently, an interest has developed in computer and mathematical models of racing wheelchair propulsion with the goal of improving performance and efficiency. The model in this paper is first presented in block diagram form and later described in greater detail. Equations are presented that describe the motion of a racing whe...