Estimation of aggregate reserve with point-of-load voltage control

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Title: Estimation of aggregate reserve with point-of-load voltage control
Authors: Chakravorty, D
Chaudhuri, B
Hui, S
Item Type: Journal Article
Abstract: Voltage dependent loads can collectively provide a certain amount of power reserve (by virtue of the ability to change their power consumption within the stipulated voltage tolerance) which could be exploited for grid frequency regulation through voltage control at the substation/feeder or at the point of load. The amount of such power reserve would vary with time of the day depending on the incidence of different types of voltage dependent loads and also the voltage profile across the feeders. It is important for the grid operators to know the aggregate power reserve from the voltage dependent loads during different times of the day in order to schedule other forms of reserves accordingly. This paper presents a methodology to estimate such power reserve from the measured power and voltage at the bulk supply points without knowing the actual distribution network topology and/or load profile of individual customers. The proposed method is applied to estimate the time variation of the aggregate reserve offered by the voltage dependent loads within the domestic sector in Great Britain (GB). Studies on a standard IEEE distribution network are presented to validate the estimated reserve margins under typical voltage profiles across the distribution feeders.
Issue Date: 1-Sep-2018
Date of Acceptance: 31-Jan-2017
ISSN: 1949-3053
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Start Page: 4649
End Page: 4658
Journal / Book Title: IEEE Transactions on Smart Grid
Volume: 9
Issue: 5
Copyright Statement: © 2017 IEEE. This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see
Sponsor/Funder: Engineering & Physical Science Research Council (E
Funder's Grant Number: EP/I031650/1
Keywords: 0906 Electrical And Electronic Engineering
0915 Interdisciplinary Engineering
Publication Status: Published
Online Publication Date: 2017-04-25
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering

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