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| Linear Decoupling Scheme for Dual Mechanical Port Electric Machines |
| Zhao Li1, Guo Qiujian1, Wen Xuhui2, Zhao Feng2 |
| 1. Shanxi University of Technology Hanzhong 723003 China; 2. Institute of Electrical Engineering CAS Beijing 100190 China |
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Abstract The dual mechanical port electric machine (DMPM) is a new breed of electric machines. The two ports can input or output mechanical energy freely, working in motor or generator mode at the same time respectively. But field couplings exist between the inner and outer air-gaps, which affects the performances of the two mechanical ports greatly and brings much trouble in controlling. This paper studies the characteristics of the field coupling in two different permanent magnet DMPM motors. The DMPM model inducing the field coupling is analyzed. A linear decoupling control algorithm of DMPM is presented, based on which a four-dimension system thus can be converted into two two-dimension systems. The Lyapunov equations are constructed to prove the stability of the algorithm. Simulations and experiments are carried out. The results prove that the algorithm can decouple the system effectively.
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Received: 11 January 2008
Published: 12 February 2014
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2009, Vol. 24 
