A Wavelet-Prony Method for Modeling of Fixed-Speed Wind Farm Low-Frequency Power Pulsations
The increasing penetration of wind generation on the Island of Ireland has been accompanied by close investigation of low-frequency pulsations contained within active power flow. A primary concern is excitation of low-frequency oscillation modes already present on the system, particularly the 0.75 Hz mode as a consequence of interconnection between the Northern and Southern power system networks. In order to determine whether the prevalence of wind generation has a negative effect (excites modes) or positive impact (damping of modes) on the power system, oscillations must be measured and characterised. Using time -frequency methods, this paper presents work that has been conducted to extract features from low-frequency active power pulsations to determine the composition of oscillatory modes which may impact on dynamic stability. The paper proposes a combined waveletProny method to extract modal components and determine damping factors. The method is exemplified using real data obtained from wind farm measurements.
Prony Oscillation Wavelet Transform Wind Energy
Daniel McSwiggan Tim Littler
Electrical Power and Energy Research Cluster, Queens University Belfast,Belfast, BT9 5AH, Northern Ireland
国际会议
无锡
英文
421-432
2010-09-17（万方平台首次上网日期，不代表论文的发表时间）