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The penetration of distribution generation (DGs) sources in the distribution grid is largely limited by various factors that involves feeder losses, power quality, stability and security of the grid. Different types of DGs have different impacts on the grid upon integration. The penetration of inverter-based DGs (IBDG) in the distribution networks are mainly limited due to their heavy impact on the...
This paper presents analytical and simulation results for examining the impact on the apparent impedance seen by the distance relay (MHO relay) of transmission line with shunt FACTs device Static VAR Compensator (SVC) applied for mid-point voltage control to increase the power transfer capability. Analytical study of such situations is simulated by using PSCAD software and analyzed the responses of...
A grid of transmission lines operating at high or extra high voltages is required to transmit power from generating stations to load. In addition to transmission lines that carry power from source to load, modern power systems are highly interconnected for economic reasons. The large interconnected transmission networks are prone to faults due to the lightning discharges and reduce insulation strength...
This paper presents the effects of Static Var Compensator (SVC), one of the shunt connected Flexible Alternating Current Transmission System (FACTS) devices, on the measured impedance at the relaying point in the case of inter phase, phase to phase and three phase, faults. The measured impedance at the relaying point is affected by several factors, including the line pre-fault loading, line structural...
In this work a methodology is developed of optimization applying to the Simulated Annealing Algorithm, which involves the dimensioning and the localization of STATCMOs at the different buses of the Portuguese grid where there is injection of the wind generation considering the 2009 scenario. With this methodology it is hoped to obtain reactive energy support and consequently improving the voltage...
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