Protection Against Demagnetization with Rotor Coils for Permanent Magnet Synchronous Machines

被引:0
|
作者
Braun, Jochen [1 ,2 ]
Doppelbauer, Martin [3 ]
机构
[1] Siemens AG, Ruhstorf, Germany
[2] Karlsruhe Inst Technol, D-76021 Karlsruhe, Germany
[3] Karlsruhe Inst Technol, Inst Elect Engn ETI, Chair Hybrid Elect Vehicles, D-76021 Karlsruhe, Germany
关键词
AC motors; Analytical model; Demagnetization; Electrical machine; Finite element analysis; Magnetic fields; Magnetic flux; Permanent magnet motors; Protection; Short-circuit currents;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper examines the possibility of protecting the magnets of permanent magnet electrical machines against demagnetization in case of a sudden three-phase short circuit at the terminals of the stator winding. An analytical description of the effects that reduce the load that can demagnetize the permanent magnets is provided and verified using FEM simulation.
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页码:550 / 556
页数:7
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