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.
Presently, voltage stability indices are ones of powerful tools used to monitor and evaluate power system stability. The purpose of the presented work is to analyse, assess and compare different indices from the point of view of the sensitivity to the network disturbances. The proposed method allows to locate the sensitive area and also to monitor the behavior of indices in order to select the best...
Limit induced bifurcation (LIB) of power system is usually caused by reactive power output of generators exceeds the limit. According to this feature, a fast calculation method for voltage stability load margin of limit induced bifurcation is presented. The algorithm establishes the load margin solving model of limit induced bifurcation for power system voltage stability; considering the constraints...
This paper presents a novel voltage stability sensitivity index incorporating the slip of wind generator and stochastic wind speed and load. Tradition studies are insufficient to inquire the impact of the slip of asynchronous wind generators and stochastic wind speed and load on voltage stability index. Firstly, the slip of asynchronous generator is introduced as a new state variable, and thus new...
In this paper, three voltage stability indices (VSIs) have been assessed. The voltage stability problem has been formulated as an optimization problem. Genetic algorithm (GA) has been employed to solve this optimization problem. Wale & Hale 6 bus system was used in this paper study.
The evaluation of technical effects of connecting distributed generation to distribution networks is a complicated activity requiring a wide range of network operational and security characteristics to be qualified and quantified. This paper presents a Differential Evolution Algorithm for optimal allocation of distributed generation in distribution networks considering various technical and economical...
Voltage Stability Analysis has become more important as a result of insufficient reactive resources in bulk transmission systems. Usually the objective of Voltage Stability Analysis is to identify the weak regions in terms of reactive power deficiency and determine the critical contingencies and voltage stability margins for various power transfers within regions. This paper presents a practical method...
Present day power systems are growing in size and complexity of operation with inter connections to neighboring systems, introduction of large generating units, EHV 400/765 kV AC transmission systems, HVDC systems and more sophisticated control devices such as FACTS. For planning and operational studies, it requires suitable modeling of all components in the power system, as the number of HVDC systems...
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.