| Abstract |
The flux-linkage dependency of rotor position and phase current creates a complex problem for the accurate characterization of switched reluctance motors. This paper deals with the SRM static magnetic characteristics measurement using digital processing. Over the last few years a number of analytical algorithms, as well as finite elements modeling and experimental methods have been used to create the magnetization curves of a Switched Reluctance Motor. An overview of the most common methods used to determine the SRM characteristics is given. Using the direct method, the experimental magnetic curves have been obtained for a 1.8 kW four-phase SRM. A digital storage oscilloscope is used to record voltage and current waveforms. The data is loaded to a PC and processed in Matlab. Once the curves have been established, the torque characteristics can be calculated using the well-known co-energy method. The tests carried out prove the correctness of the methodology. |
