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The paper deals with the design of a 1000 HP Permanent Magnet synchronous motor for the propulsion of a 670 tons ship. The paper contains the preliminary design evaluation to define motor specifications and rotor configuration and a description of the main steps of the electromagnetic design and thermal analysis. Prediction of motor performance and preliminary test results are also presented and discussed.
This paper deals with thermal analysis coupled with the finite element analysis of electric machines. The rated torque of an electrical machine is limited by the maximum temperature rise of the materials used, in particular the insulating and permanent magnet materials. In addition, the electrical machines performance is strongly affected by the operating temperature. This paper presents a general...
This paper deals with the design of a surface-mounted permanent magnet (SPM) motor operating in a propulsion system of a small ship. The SPM motor is installed in a submersed bulb provided of a propeller. The particular location of the motor together with the very high torque-to-volume ratio required by this application need an accurate coupled magnetic and thermal analysis. The analysis uses both...
The design of electrical machines for extreme operating conditions must include a thermal analysis coupled with the magnetic analysis. However, the traditional coupling of the thermal and the magnetic models can result in an unacceptable increase in computation time, particularly if finite elements (FEs) are used for the machine analysis. This paper proposes a coupled thermal-magnetic analysis of...
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