Analysis and Mitigation of Ferranti Effect on Long Low Loaded Power Distribution Networks.
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Ferranti effect is when the steady voltage at the open end of an uncompensated distribution line is higher than the voltage at the sending end. This project presented the analysis & mitigation of Ferranti effect in the Kalangala Infrastructural Services (KIS) power distribution network. The analysis was based on software simulations with information obtained from the Bukuzindu hybrid power station operations data log of 1st – 9th of January 2019. The DIGI SILENT power factory 15.1 software gave the locus of sending end voltage with line length at lowest loading which showed that receiving end voltage is greater than sending end voltage. The MATLAB-Simulink program gave the models of the lumped-up KIS power network & the devices used in the mitigation of Ferranti effect. Both SVC (Static Var Compensator) and D-STATCOM (Distribution Static Synchronous Compensator) are important shunt FACTS equipment for reactive power compensation, which were compared in response speed, amount of reactive power absorbed, & the amount of voltage reduced at the same rating. Simulation results were presented as the same controllable rated capacity for SVC or D-STATCOM was connected on the distribution bay of Bukuzindu power generation substation. D-STATCOM is much better than SVC with faster response speed, higher amount of reactive power absorbed, & higher amount of voltage reduced at the same rating & it was chosen as the most appropriate shunt FACTS device in the mitigation of Ferranti effect in the KIS power network.