A new modified severity function is proposed, based on which the N-2 line contingencies in the IEEE 30 bus system are analyzed and ranked. FACTS devices like Static VAR Compensator (SVC) and Thyristor Controlled Series Capacitor (TCSC) are used for achieving reduction in under voltage severity value and reduction in voltage deviation from the nominal value. A hybrid combination of two heuristic...

This paper presents a new multi-objective optimization based reactive power price clearing (RPPC) mechanism, considering voltage stability. Use of realistic voltage dependent load models is important in power system analysis and optimization. The influence of the same on RPPC is investigated in this paper. Investigations have also been carried out to ascertain the effectiveness of objectives su...

A substantial quantity of real power loss is accounted for the distribution system due to its radial nature. Efficient and secure operation a system, it necessary minimize active system’s voltage stability index (VSI). Power VSI in can be minimized with optimal integration distributed genera

The efficacy of long-distance and bulk power transmission largely depends on the efficient control reliable operation a multiterminal high-voltage direct current (MT-HVdc) grid, more precisely, meshed HVdc grid. capability enduring dc grid fault eventually enhances reliability improves dynamic performance This article investigates an AC/multiterminal (MTDC) system with bipolar topology incorpor...

a new method was introduced for frothing characterization of flotation frothers. method uses water recovery to develop a new frothability index named water recovery index (wri). new index was determined for some commercial frothers and results were compared with dynamic frothability index (dfi). results showed that water recovery index values follow the order of a-65 13016 s/mol > df-250 6292.4...

At present, the evaluation of voltage stability assessment experiences sizeable anxiety in the safe operation of power systems. This is due to the complications of a strain power system. With the snowballing of power demand by the consumers and also the restricted amount of power sources, therefore, the system has to perform at its maximum proficiency. Consequently, the noteworthy to discover t...

Aiming at the bus voltage fluctuation caused by nonlinearity, limited change and uncertain factors such as deviation, load system parameter traditional droop control in DC microgrid, a precise scheme considering constraints is proposed. Firstly, parabolic used to replace linear improve accuracy of power distribution. On this basis, controller based on barrier Lyapunov function designed precisel...

Voltage stability analysis is the major concern in order to operate any power system as secured. In this context there are many research work has been carried out to improve the voltage stability. This study demonstrates the use of latest Power System Analysis Toolbox (PSAT) package for network analysis of alternative means of improving existing transmission system voltage stability. This paper...