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Doubly-fed induction generator (DFIG), as a wind generator, is economically justified, but control of the machine is difficult. In addition, it is significantly difficult to assure continuous operation of the DFIG during and after line-voltage distortions, as required by grid code. Nowadays, there is no single used method; the problem is not entirely solved. In the paper, not only features of the...
This paper presents analysis of closed loop and sensorless control of induction machine with broken rotor bar for on-line diagnostics purposes. Closed loop control system synthesis of induction motor is based on symmetrical model of the machine. In case of induction machine operation with broken rotor bars, rotor speed pulsation is compensated by the control system. Simulation of multiscalar control...
Three proposals of a control system for a double-fed induction machine working as a generator are presented. Possibilities of the parallel operation of induction and synchronous generators are also investigated. A simplified model of synchronous machine dynamics have been assumed. Computer simulation results are presented.<<ETX>>
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