Electromechanical dynamics analysis and simulation on rollforming equipment with both sides variable cross-section |
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| Affiliation: | 1. College of Mechanical and Material Engineering, North China University of Technology, Beijing 100000, P.R.China;2. College of Electrical Power, Inner Mongolia University of Technology, Hohhot 010051, P.R.China |
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| Abstract: | Electromechanical dynamics analysis and simulation on a rollforming equipment with both sides variable cross-section are discussed in this study.The system includes mechanical parts and electro-magnetism parts, and it is a strongly coupled electromechanical system.Based on a virtual work principle and given power,generalized forces of this system are obtained.By using Lagrange-Maxwell equations, a model of electromechanical dynamics is established.Differential equations of two-phase winding on d-q axis are obtained by Park transformation, which comes from three-phase winding equations on the A-B-C axis.This system is solved with the 4th order Runge-Kutta’ s method, and discrete solutions of all variables are obtained.Finally, by using Matlab language, the system is simulated.The results show that the proposed method works very well. |
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| Keywords: | electromechanical dynamics electromechanical coupling system virtual work principle Runge-kutta’ s method |
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