Abstract
This paper proposes a reliable method based on matching pursuits for detecting and characterizing power system oscillatory transients. The method compares a portion of the time-domain signal with the damped sinusoidal functions of a redundant dictionary. When the value of correlation between the signal and the function in the dictionary is near to one, it is concluded that an oscillatory disturbance has taken place, and the frequency and damping factor of the function are considered as the parameters of the oscillatory transient. The effects of noise and initial amplitude of transient are numerically examined, and it is found that the method remains accurate when the transient signal is deeply buried in the noise or is of very low initial amplitude. The algorithm does not require any system modeling and the accuracy is not affected by the variations in system conditions, such as network topology or component parameters
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.