Abstract
Actually, one of the main concern of the airplanes manufacturers and equipments suppliers is the ‘all electric plane’ project. In the framework of this study, the article present an all electric motorization solution for the raising of a landing gear. In such a system the main technical difficulties to overcome are the specific performance of the motor and the reliability and availability of the system. The mechanical constraint of reliability make necessary the use of a slow machine with a high massic power. We then propose the use of a vernier permanent magnet synchronous motor whose natural properties make it completely adequate for this application. Some original and fault tolerant power electronics solutions are proposed in order to satisfy the strong reliability constraints.