Title :
Dynamic measuring of frequency and frequency oscillations in multiphase power systems
Author :
Eckhardt, V. ; Hippe, P. ; Hosemann, G.
Author_Institution :
Erlangen-Nurnberg Univ., West Germany
Abstract :
Instantaneous system frequency is defined, and a method of frequency measurement is proposed which determines the angular velocity of the rotating voltage space phasor. Impulses in frequency caused by steps in phase are blanked out, whereas harmonics and noise are suppressed by FIR filters. Using an optimized observer-based filter, frequency modulations are split into and frequency drift and frequency oscillation signals, which can be used in power control and power system stabilization.<>
Keywords :
frequency measurement; power system measurement; FIR filters; frequency drift; frequency measurement; frequency oscillations; harmonics; multiphase power systems; noise; power system measurement; rotating voltage space phasor; Angular velocity; Finite impulse response filter; Frequency measurement; Frequency modulation; Phase noise; Power control; Power harmonic filters; Power system control; Power system harmonics; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
