Direct digital synthesis of the signal as a basis for constructing a calibrator of instruments for measuring electric power quality
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In modern calibrators of instruments for measuring electric-power quality, the voltage is reproduced by direct digital synthesis (DDS) of the signal. The main structures and methods of regulating the frequency of the output signal of DDS-synthesizers are considered. It is shown that, for a number of parameters, the frequency regulation method, when the reference frequency of the digital-to-analog converter is varied using a DDS generator, is the most preferable.
Keywords
electric power quality indicators calibrator direct digital synthesis of the signal frequency regulationReferences
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© Springer Science+Business Media, Inc. 2011