Title :
Comparison of the modified subsynchronous cascade drive
Author_Institution :
Inst. of Electr. Drive & Industrial Equipment Control, AGH Univ. of Sci. & Technol., Krakow
Abstract :
Slip energy recovery induction motor drives, in which the variable speed operation is achieved by means of controlling the slip power, are used in high-power applications. The paper presents the results of simulation and experimental tests of the modified subsynchronous cascade system - thyristor converter in the rotor circuit was replaced with a DC/DC converter and PWM inverter with sinusoidal output current and unity power factor. A comparative analysis of the proposed solution has been carried out with reference to the basic cascade configuration with the thyristor converter functioning as a line inverter. The criteria of assessment were: rms values of line currents and current distortion factors in selected points of the cascade system
Keywords :
DC-DC power convertors; PWM invertors; induction motor drives; machine control; machine testing; power factor; rotors; slip (asynchronous machines); thyristor convertors; variable speed drives; DC-DC converter; PWM inverter; current distortion factors; rotor circuit; slip energy recovery induction motor drives; slip power control; subsynchronous cascade drive; thyristor converter; unity power factor; Bridge circuits; Diodes; Induction generators; Induction motors; Power generation; Pulse width modulation inverters; Reactive power control; Rotors; Thyristors; Velocity control; Adjustable speed drive; Harmonics; Power Quality; Simulation;
Conference_Titel :
Power Electronics and Applications, 2005 European Conference on
Conference_Location :
Dresden
Print_ISBN :
90-75815-09-3
DOI :
10.1109/EPE.2005.219628
