File Name: dynamics of mechanical and electromechanical systems .zip
The structural scheme of mechanical elastic energy storage MEES system served by permanent magnet synchronous motor PMSM and bidirectional converters is designed. The aim of the research is to model and control the complex electromechanical system. The mechanical device of the complex system is considered as a node in generalized coordinate system, the terse nonlinear dynamic model of electromechanical coupling for the electromechanical system is constructed through Lagrange-Maxwell energy method, and the detailed deduction of the mathematical model is presented in the paper. The theory of direct feedback linearization DFL is applied to decouple the nonlinear dynamic model and convert the developed model from nonlinear to linear. The optimal control theory is utilized to accomplish speed tracking control for the linearized system. The simulation results in three different cases show that the proposed nonlinear dynamic model of MEES system is correct; the designed algorithm has a better control performance in contrast with the conventional PI control. Power balance is a basis for stable operation of power system [ 1 , 2 ], which is frequently disturbed by some factors such as faults and intermittent power generations.
Genetic algorithm has been used for optimization. Different optimization problems have been considered. Next, the total operation time of the actuator without feedback, and the setup time of the actuator with feedback are minimised. Finally, required trajectory of movement has been imposed and trajectory error is minimised. It enables optimal design of the electromechanical system in respect to its dynamic properties. Nowak, L. Emerald Group Publishing Limited.
Dynamics and Control of Electrical Drives pp Cite as. Chapter is devoted to dynamics of mechanical and electromechanical systems. Sections dealing with mechanical systems concern holonomic and nonholonomic objects with multiple degrees of freedom.
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Увы, как и большинство других поисков божества, она закончилась распятием. - Хорошо, - сказала. - Я немного погорячилась.
Но она этого не сделала.
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