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The switched reluctance motor (SRM) has recently received much attention because of its preferred features in simple and rugged configuration and elimination of permanent magnet (PM).
By using the powder metallurgy technology and magnetic isotropy characteristic of the soft magnetic composite (SMC) material, various kinds of the complex structure permanent magnet synchronous machines (PMSMs) can be designed and fabricated easily e.g., axial-flux machine, claw pole machine (CPM) and transverse-flux machine (TFM) [1]-[4]. With the global coil applied in the CPM and TFM, the CPM and...
Soft magnetic composite (SMC) material is a relative new soft magnetic material which has undergone the substantial development during last decades. Especially with the low-pressure pressing on the mold, the magnetic core with SMC of the machine can be fabricated easily and the manufacture cost can be reduced greatly. By using this technology, a claw pole machine (CPM) with SMC core was designed and...
This paper presents a multidisciplinary design analysis method for permanent magnet (PM) motors with soft magnetic composite (SMC) cores. Firstly, a multidisciplinary design analysis process is investigated to evaluate the performance of these motors, which includes electromagnetic analysis (based on new core loss model), thermal analysis, and mechanical modal analysis. Then a lumped 3-D thermal network...
A bearingless motor (BM) is an electrical machine with a built-in magnetic bearing element. The stator of the machine is fitted with two sets of windings with different pole-pair numbers, and the pole-pair numbers must be consecutive. The principle of BMs can be applied to most of the conventional motor types, i.e., reluctance motors, induction motors, and permanent magnet synchronous motors (PMSMs),...
Fault-tolerant motor drives are required in various safety critical applications. Using special motor design and inverter topology, brushless permanent magnet AC motor drives can have a fault-tolerant capability. In this paper, a dual motor drive configuration has been proposed which offer high robustness and reliability. This paper studies various critical performance characteristics of the dual...
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