Title :
DSP based virtual power measurement in nonsinusoidal electric systems
Author :
Samra, Abdul H. ; Syed, Khalid S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Int. Univ., Miami, FL, USA
Abstract :
Evaluating the harmonic distortion in both current and voltage waveforms is essential for an accurate active power measurement in a nonsinusoidal environment. A DSP based instrumentation system for active measurement has been developed. Goertzel algorithm is used to evaluate the power at each harmonic. Computer simulation and laboratory experiments are used to show the significance of the developed system. The results obtained confirmed that this system provides a more precise measurement of active power compared to a conventional analog wattmeter in a nonsinusoidal environment
Keywords :
data acquisition; electric current measurement; electric distortion measurement; harmonic distortion; power measurement; signal processing; signal processing equipment; voltage measurement; DSP based instrumentation system; DSP based virtual power measurement; Goertzel algorithm; active measurement; active power measurement; computer simulation; current waveforms; data acquisition software; harmonic distortion; laboratory experiments; nonsinusoidal electric systems; nonsinusoidal environment; voltage waveforms; Computer simulation; Digital signal processing; Distortion measurement; Harmonic distortion; Instruments; Laboratories; Power measurement; Power system harmonics; Voltage; Wattmeters;
Conference_Titel :
Southeastcon '97. Engineering new New Century., Proceedings. IEEE
Conference_Location :
Blacksburg, VA
Print_ISBN :
0-7803-3844-8
DOI :
10.1109/SECON.1997.598706
