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《Electric Machines and Control》 2015-05
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Application of stationary boundary method to calculation of rotating magnetic field and iron loss in permanent magnet synchronous generator

GUO Jian;LIU Chuang;LI Kai-qi;College of Automation Engineering,Nanjing University of Aeronautics & Astronautics;  
The iron loss of permanent magnet synchronous generator was calculated based on the rotating magnetic field distribution. At present,different finite element models corresponding to the positions of rotor were established to calculate the rotating magnetic field,i. e.,the model reconstruction method.The modeling-mesh process was repeated due to the different positions of rotor,which makes the whole analysis process inefficient. Based on this,the stationary boundary method which can calculate the rotating magnetic field distribution with efficiency was proposed. By changing the coupling order of the boundary node's magnetic potential to equivalent to the rotor's position,the analysis process efficiency can be increased. By comparing the calculation results,correctness and efficiency of the stationary boundary method were verified. At the same time,by using the stationary boundary method,the finite element 's shape,location and consistence to form the node information can be ensured. Magnetic flux density domain solution were given for the accurate calculation of iron loss distribution.
【Fund】: 国家自然科学基金(51307082)
【CateGory Index】: TM31
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