Title :
A time-domain three-phase power system impedance modeling approach for harmonic filter analysis
Author :
Girgis, A.A. ; Quaintance, W.H., III ; Qiu, J. ; Makram, E.B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA
fDate :
4/1/1993 12:00:00 AM
Abstract :
A time-domain method for impedance modeling of an unbalanced, three-phase power transmission and distribution network using three-phase measurements of bus voltage and injected current waveforms is presented. An impedance model seen at a bus where a harmonic filter is to be installed is calculated for each harmonic frequency, and the effect of placing the filter at the bus is then analyzed at these frequencies. As the configuration or operating condition of the power system varies, the estimated model changes accordingly, provided updated measurements are available. Hence, the effect of the harmonic filter under different system configurations or operating conditions is analyzed, and the information from this analysis is used for online harmonic filter control. Impedance models estimated by the proposed method are applied in filter design and performance analysis with actual recorded data, and the results are presented
Keywords :
distribution networks; electric current measurement; electric impedance; filters; harmonics; power system measurement; time-domain analysis; voltage measurement; bus voltage measurement; distribution network; harmonic filter analysis; impedance model; inject current measurement; online harmonic filter control; power system impedance modeling; three-phase; time-domain; Frequency; Harmonic analysis; Harmonic filters; Impedance; Power harmonic filters; Power measurement; Power system harmonics; Power system measurements; Power system modeling; Time domain analysis;
Journal_Title :
Power Delivery, IEEE Transactions on
