n large cities, due to expensive land price, high-rise buildings are built, in which the space dedicated to the elevators is considerable and reduces the rented surfaces. To decrease these lost surfaces, a Multi Mobile System is proposed. It consists of several moving cabins in the same shaft. This paper focuses on the modeling of the power supply of such a system. As the long linear stator is energized per sector, a methodology is proposed to study the complete system. New modules of Simseu software are developed. The obtained results permit to develop a complete control strategy as the next step of the study.