Double-sided flux-switching linear synchronous machine with yokeless translator

In this paper, a novel double-sided design of a 3υ permanent magnet flux-switching linear synchronous machine (FSLSM) with a yokeless translator is proposed. When compared to conventional flux-switching linear machines, it is found that the proposed design can achieve 56% higher thrust without compromising other features of the conventional flux-switching motor. The proposed design also exhibits excellent thrust versus current linearity even under high excitation currents. Force analysis of the proposed design is performed to establish the mechanical integrity of the design. The proposed linear motor is suitable and cost-effective for applications that require long strokes and may also, find uses in repeated oscillatory type applications.