Thermal analysis of a canned switched reluctance drive with a novel network

- A novel thermal network of high accuracy is studied.
- Detailed modeling approach is described.
- Heat transfer of a canned switched reluctance motor is studied.
- Thermal characteristics are given via measurement.

This paper presents thermal characteristics of a novel canned Switched Reluctance Machine (SRM) as a hydraulic pump drive. Due to considerable ohmic loss from the can shield structure, thermal analysis is essential. A novel lumped parameter network model featured by using compensation elements is proposed. As a result, calculation accuracy is improved by removing traditional systematic error. The modeling process is described in detail, including thermal resistances and compensation elements. Accuracy of the model is validated by both finite element method (FE) and measurement.