The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Low frequency oscillations in the power grid can be classified into three types associated with power system events, non-obvious disturbances, and normal power system operations. A statistical analysis is introduced for the three types of oscillations in the Eastern Interconnection (EI) between 2009 and 2010 supported by the North American power Frequency Monitoring Network (FNET). Six “Type III”...
This paper reports results from analysis of low-frequency oscillation monitoring on the Western Interconnection of the North American power system from a distribution-level phasor monitoring network (FNET). Some examples of oscillation characteristics excited by various disturbances are discussed using real measurements taken in 2010. The Matrix Pencil method is used for oscillation modal analysis...
Electromechanical oscillations associated with power system stability problems have been a primary concern of system planning, operation and control for decades. With growing loads, the need for long distance power exchange between power companies leads to the frequent occurrence of instability phenomena including oscillations. The growth of synchrophasor measurement‐based Wide‐Area Monitoring System...
The inter-area oscillations occurring in the Eastern Interconnection (EI) are investigated by six typical cases using the FNET data. The matrix pencil method of multiple signals is used for the modal analysis. The parameters related to mode shape are calculated. The mode shapes for the dominant mode are revealed for each case. Analysis results depict a view of inter-area mode distribution in the Eastern...
This paper reports the initial results on low frequency oscillation monitoring and analysis combining practical measurements from an Internet-based frequency monitoring network (FNET) and simulations. Typical oscillation characteristics excited by various disturbances are shown using simulations and real measurements. The corresponding time-space dynamic propagation patterns are also provided. The...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.