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In this paper, the control of a grid-connected wind energy conversion system (WECS), based on an induction machine fed by a matrix converter (MC), is presented. The MC is controlled using a space vector modulation algorithm with zero displacement factor at the input. Stability issues related to the operation of the WECS for the whole power and speed range are fully analyzed in this paper, using a...
This paper focuses on the super/sub-synchronous operation of the doubly fed induction generator (DFIG) system. The impact of a damping controller on the different modes of operation for the DFIG based wind generation system is investigated. The co-ordinated tuning of the damping controller to enhance the damping of the oscillatory modes using bacteria foraging (BF) technique is presented. The results...
A detailed dynamic model of wind driven doubly fed induction generator system has been developed. The various converter controls have been identified and their order in enhancing the dynamic performance has been established through Hankel singularity value indices and also residue evaluations. Damping controller structure and most effective input to the controller have been determined using the controllability...
This paper presents the design and performance of a test bench to generate grid faults and disturbed grid voltage conditions to test grid connected devices. The test bench is applied to generate different reproducible types of disturbed grid voltages like symmetrical and unbalanced voltage dips, overvoltage, frequency variations and harmonic disturbances. By means of this grid emulator the behavior...
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