New Perspectives for Electrical Motors in Adjustable Speed Drives

In the area of electric drives, electrical motors are arousing a renewed interest, due to the trend of using application- oriented motors, instead of general-purpose ones, in both civil and industrial applications. According to this trend, new motors are designed and studied to comply with new requirements. Innovative design procedures, new materials and refined manufacturing technology are experienced, encouraging the investigation of new application fields. This paper is mainly devoted to the description of the state-of-the-art and the trends in electrical motors for drives. At first, a review of their market is discussed. Then, the paper presents some innovative aspects of motors technology. At last, new interesting fields of application are proposed.