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The obvious increment in carbon dioxide emission has encourage the power converters designers to enhance designs in order to guarantee the use of green power generation technologies. It should be balanced the fact that we need to decrease carbon dioxide emissions with the fact that we need to ensure that all power system technologies asure system stability, robustness and reliability. A useful power...
This paper presents the emulation of grid-connected wind energy conversion system based on the 30 MIPS Digital Signal controller (DSC) dsPIC30f3011. This system is composed by a three-phase permanent magnet generator, an AC to DC converter and a single phase Voltage Source Inverter (VSI). The inverter was driven using Space Vector Pulse Width Modulation (SVPWM) at a switching frequency of 18 kHz and...
This paper explores the performance of alternative voltage control strategy applied to direct drive synchronous wind generators, more specifically with permanent magnetic (PMSG). The reactive power control of the grid-side converter is investigated for voltage control purposes. In Brazil, the Grid National Operator (ONS) requires that wind turbines stay connected to the grid during voltage dips, but...
Modeling and analysis of power and power-electronic systems' transients using digital programs enables testing new design concepts in modern electric grid and many industrial and commercial products and applications. This paper gives an overview of dynamic average-value modeling techniques for representing static switching converters for the system-level studies. Concepts and desirable properties...
In this paper a novel soft switched high frequency AC link converter is proposed for use as a battery-utility interface. The proposed configuration uses 10 bi-directional switches interfacing with an AC link consisting of an inductor and a parallel capacitance. The capacitance produces soft turn off in all operating conditions, and turn on always occurs with zero voltage. Utility scale battery systems...
The quality of the electric power produced, transported and distributed did not cease being a major concern for the operators and the manipulators of electricity. Several disturbances of various natures are at the origin of instabilities of the electrical supply networks. Among the disturbing phenomena, we quote the unbalance voltage of which we were interested by proposing an adequate command and...
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