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This paper studies the performance of the dual 3-level T-type converter topology, as an advanced 5-level converter, applied to an open-ends induction machine. The performance is evaluated based on harmonic analysis, converter power loss and the steady-state machine performance. An advanced technique based on space-vector pulse-width modulation is proposed to reduce the converter switching stress as...
This paper presents a fully adaptive fault location algorithm for series-compensated lines (SCLs) based on synchronized phasor measurements obtained by phasor measurement units (PMUs). The proposed algorithm does not require any knowledge on the exact model of the series-compensation device and, therefore, can be applied to transmission lines with any type of series compensation. In addition, the...
In this paper, a new control technique for stability improvement of the grid connected microgrids is proposed. Grid connected microgrid including voltage source inverter (VSI), PLL, coupling inductance, LC filter as well as power, and current controllers is modeled. PI power and current controllers are optimally designed to improve the stability response of the grid connected microgrid. The power...
The use of the supplementary controllers of a unified power flow controller (UPFC) to damp low frequency oscillations is investigated. The potential of the UPFC supplementary controllers to enhance the dynamic stability is evaluated by measuring the electromechanical controllability through singular value decomposition (SVD) analysis. Individual designs of the UPFC controllers using particle swarm...
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