کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
730595 | 892987 | 2009 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: On-line measurement of low-frequency oscillations in power systems On-line measurement of low-frequency oscillations in power systems](/preview/png/730595.png)
Low-frequency oscillations in the interconnected power systems are observed all around the electrical grids. This paper presents a novel technique for analyzing the low-frequency oscillations in power system networks. The proposed technique is a dynamic estimator based on stochastic estimation theory which is suitable for estimating parameters on-line. The method uses digital set of measurements for power system swings to perform the analysis process digitally. The goal is to estimate the amount of damping in the swing curve as well as the oscillation frequency. The problem is formulated and presented as a stochastic dynamic estimation problem. The proposed technique is used to perform the estimation process. The algorithm tested using different study cases including practical data. Results are evaluated and compared to those obtained using other conventional methods to show the capabilities of the proposed method.
Journal: Measurement - Volume 42, Issue 5, June 2009, Pages 716–721