Design of a test bench for a lateral stator electrical machine

In a previous study, lateral stator electrical machines have been proposed for micro-machining applications where the space in the tool head is limited. In this paper, the construction of a lateral stator machine merged into a test bench is described. The test bench is used for measuring the standstill torque of the machine in a configuration without bearings, such that only the electromagnetic torque is measured. Moreover, the test bench can be modified to measure the no-load losses and separate mechanical and electromagnetic components of it using a novel method. Further separation of different components of electromagnetic no-load losses is also discussed. Although described on a lateral stator machine, the methodology in this paper can be applied to any electrical machine.