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The control systems of modern electric drives are built with using the principle of subordinate control, therefore the quality and accuracy of control of all external loops largely depends on internal control loops. In the article a typical, which is widely used in practice, and robust current control systems, which is obtained based on of a general solution of the polynomial synthesis equation, are...
The paper is devoted to the estimation of technical and economic efficiency of using the supercapacitors in the frequency-controlled electric drives, which are used in hoisting applications. In the article the frequency-controlled electric drive of passenger elevator is described in detail. The simulation results, energy consumption, calculation of economic efficiency and payback period of using electric...
The report describes the possibility of application the ultracapacitors in the widely used frequency-controlled electric drives. The energy efficiency estimation of using the ultracapacitors in the different purposes electric drives is described. The theoretical and experimental investigation results for electric drives with capacitive energy storage are shown.
The paper deals with development of program block for estimation of energy consumption by induction motor drive. The block is created in MATLAB/Simulink application. The block topology, parameter-setting window and equations used in block are shown. The proposed method used in drive simulation allows estimating consumed energy, energy losses and energy efficiency of different drive systems. The calculation...
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