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CONTENTS

ObjectiveIntroductionExisting methodsProposed method

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OBJECTIVE

To improve the reliability of distributionsystem through optimal sitting and sizing ofenergy storage systems combined with

reliability evaluation technique and tominimize loss of load supplied by successfulislanding operation

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INTRODUCTION

The use and production of electricity are changingto meet the customer requirements and to overcomeenvironmental problems Incorporation of !istributedEnergy "esources #!E"$s% in distribution system leads

to improve system reliability and to decreaseelectricity cost Power generated from !E"$s isstochastic& Energy 'torage 'ystems #E''% are utilizedfor addressing the networ( disturbances )s E''$sprovides power to loads during networ( outages&successful islanding operation improves systemreliability by minimizing loss of energy supplied to non*a+ected loads

'o& E''$s are optimally sited and sized for mostcost*e+ective reliability

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EXISTING METHODS

,athematical formulation was derived for sizing of E''$s to meet thereliability of speci-c customersTime series models are used for modeling the stochastic nature ofcomponents

DRAWBACKS.ost bene-t analysis is not includedoptimal siting of E''$s is not includedoptimal load points to be shed are not included

Existing systems concentrates on improving reliability by consideringeither optimal allocation of E'' or optimal sizing of E''/owever& this system proposes a new concept in which both of these areta(en into consideration

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PROPOSED METHODOptimize the siting and sizing of ESSs fo! "ost#effe"ti$eness p!esented in te!ms

of %i&&ingness to pa'Optimize the &oad points to (e shed to minimize tota& inte!!)ption "ostProbabilistic models%i&& (e "onside!ed instead of time series models