Voltage Profile Estimation And Reactive Power Control Of Distribution Feeders

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Title: Voltage Profile Estimation And Reactive Power Control Of Distribution Feeders
Author: Chessmore, David Timothy
Abstract: Distribution systems are important transportation links for the delivery of electric power . Understanding the system conditions of distribution feeders is vital for controlling power systems and maintaining electricity flow on power grids . With better knowledge of the system conditions on distribution feeders , a deliberate and systematic approach can be taken to achieve more efficient and reliable power delivery . Furthermore , better understanding of system conditions can be useful in reducing operation and maintenance costs in various power system applications such as voltage control and capacitor bank switching . This dissertation presents a novel method for estimating the voltage profile of a radial distribution feeder using forecasted load demands and a three -phase power flow program . Additionally , using the forecasted system load and voltage estimations , an efficient proactive capacitor bank switching algorithm has been developed to control the capacitor banks on distribution feeders . The results of a comprehensive study of the effects of the short -term load forecasting software , the voltage profile estimation algorithm , and the capacitor switching algorithm are displayed in this dissertation . The topics presented in this dissertation include artificial neural networks for short -term feeder load forecasting , voltage profile estimation using three -phase power flows , capacitor bank switching for voltage improvement , and capacitor bank switching for switching reduction . A software package based on the dissertation's research has been developed for electric delivery companies as a planning and operating tool for use in a distribution management system . The software package offers the electric delivery company the ability to estimate system load and voltage conditions on distribution feeders as well as control the feeder's capacitor banks in a more intelligent and coordinated manner . Future integration will allow the software to function as an autonomous component in the distribution management system .
URI: http : / /hdl .handle .net /10106 /975
Date: 2008-08-08


Voltage Profile Estimation And Reactive Power Control Of Distribution Feeders. Available electronically from http : / /hdl .handle .net /10106 /975 .

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