Front-mounted magnetically-geared pseudo direct drive generator

摘要

For many low-speed electrical machine applications it is usually weight/size and cost effective to employ a high-speed machine together with a mechanical gearbox. The disadvantages associated with mechanical gearboxes are concerns regarding reliability, acoustic noise, mechanical vibration, the need for lubrication and maintenance. In order to eliminate these concerns it is commonplace to use a direct drive machine, but careful design is required to ensure the size, mass and cost of the system do not become unfeasible.