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.
Present paper discusses about a reliable and cost effective optimal design for hybrid energy systems using meta-heuristic techniques. Design, planning and control of hybrid systems require complex optimization of the same which may not be solved easily with the conventional optimization methods. Several meta-heuristic optimization techniques such as particle swarm optimization techniques (PSO), differential...
Wind - Photovoltaic Hybrid System utilization is becoming popular day by day given to its reliable energy resources, decreasing prices of turbines and PV panels and increase in overall energy cost and reduced emission. Design and scheduling of such a hybrid system can be done using various techniques like genetic algorithm, particle swarm optimization, etc. One of the major difficulties in these methods...
Hurricane Gustav made landfall on September 1, 2008, Southwest of New Orleans, LA. Several transmission lines were outaged and an electrical island was formed in an area including the metropolitan New Orleans, LA. The island was sustained for several hours before the system was restored. This paper discusses the issues associated with maintaining an island, results of the dynamic simulations performed...
This paper addresses the testing and implementation of a fast process for sequential contingency simulation in order to identify potential cascading modes due to thermal overloads. It also presents computation of the vulnerability index of cascading, based on the estimated likelihood and consequences of cascading outages. The approach described in this paper offers a unique capability to automatically...
At stressed operating conditions, critical contingencies can initiate loss of synchronism and trigger cascading events. Controlled islanding is the last line of defense to stabilize the whole system. This paper presents a decision tree assisted scheme to determine the timing of controlled islanding in real time by using phasor measurements. In addition, a slow coherency based approach is used to determine...
Modal analysis and reactive power reserve method are applied in the Entergy electrical system to find the buses and zones prone to voltage instability. In the modal analysis method, weak zones are identified by monitoring the participation factor of the buses in the critical modes. In the reactive power reserve method, reactive power reserves of the zones are monitored for single line outages, generator...
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.