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This paper presents an Integrated Excitation and Turbine Control solution for steam-turbine generator system in order to improve power plant dynamic and transient stability. Firstly, the design philosophy and working principle of integrated excitation and turbine control strategy are introduced. Secondly, a simplified power system model is setup in which the IETC controller is implemented for a reference...
This paper presents a voltage-power /frequency-reactive power (VP/FQ) cross droop control scheme that allows multiple voltage source converters (VSCs) to operate in parallel with conventional generators in a microgrid. Each current controlled VSC in such a microgrid has its own VP/FQ cross droop controller that sets its current references to regulate the voltage and frequency of a common microgrid...
This paper applies the electrogeometric model of lightning exposure to a wind turbine to compute its risk of damage due to a direct lightning strike in an area of known lightning flash density. For a typical 45 m wind turbine, the probability of being struck by a downward negative flash, as predicted by the model, agrees with the observed lightning strike data for wind turbines of comparable size...
This paper proposes a reference frame transformation method which applies appropriate rotational operators to the block diagram representation of a converter space vector model to transform it from one reference frame to another. Unlike reference frame transformation using matrices, it can easily be applied to converter models of average complexity. A table of reference frame transform pairs and three...
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