Reconfiguration of distribution network considering loop closing constraints | Mathematical Optimization

Please download to get full document.

View again

of 13
All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Information Report
Category:

Documents

Published:

Views: 4 | Pages: 13

Extension: DOCX | Download: 0

Share
Related documents
Description
Volume -1 ,Issue-2 ,Feb -2017
Transcript
  INTERNATIONAL JOURNAL OF RESEARCH REVIEWIN ENGINEERING AND MANAGEMENT (IJRREM) RECONFIGURATION OF DISTRIBUTION NETWORK CONSIDERING LOOP CLOSING CONSTRAINTS S. KAMALAKANNAN* PG Scholar, Department of EEE,Adhiyamaan College of Engineering,Hosur - 63! #, $amilnadu, %ndia&'amala'annan(#&#()gmail&com V. TAMIL SELVAN Professor, Department of EEE,Adhiyamaan College of Engineering,Hosur - 63! #, $amilnadu, %ndia&tamil((! )gmail&com Abstract *oop closing operation is an important measure for the po+er dispatching center toadust distriution net+or' operation mode +ithout po+er interruption& Ho+e.er, thetraditional method for the reconfiguration of the distriution net+or' usually doesn/tconsider the loop closing constraints& %n this paper uilds a distriution net+or' reconfiguration method considering the loop closing operation& %n this model, the oecti.efunction ta'es minimum losses of the net+or' and consider the constraints of node .oltageand line po+er during loop closing operation& $he greedy randomi0ed adapti.e search procedure algorithm a heuristic method to sol.e the ne+ model +ithout po+er interruption&$he proposed ne+ model and algorithm are .alidating to the numerical results of the !1-ussystem& Key !r s#  reconfiguration net+or' distriution, loop closing, po+er interruption, greedyrandomi0ed adapti.e search procedure algorithm I. INTRODUCTION 2econfiguration of the distriution net+or' is a method to change the topology of thenet+or' y operating interconnection and sectionali0ing s+itches !4& $he feeder of the International journal of Research Review in Engineering and Management (IJRREM) ,Volume -1, Issue - !e -#1#$ %age no &#-'1%age &#  INTERNATIONAL JOURNAL OF RESEARCH REVIEWIN ENGINEERING AND MANAGEMENT (IJRREM) distriution net+or' is usually radial topology to simplify the o.ercurrent protection (4& $he primary oecti.e of the reconfiguration of the distriution net+or's is to minimi0ation of thelosses of the net+or'& $he station and transmission line po+er flo+ are reallocated accordingto the reconfiguration results (4- 14&5eeder reconfiguration is performed y the interconnection and sectionali0ings+itches y their operation of the open and closing operation of these s+itches& $heinterconnection s+itches are closed to lin' the t+o it may e a +hole feeder or the part of thefeeder or it may e another feeder +hile the appropriate sectional s+itch is opened tomaintain the radial structure of the net+or' 4& $he adustment in the operation mode+ithout po+er interruption is a great ad.antage of the loop closing operation 4&%n this paper, the traditional distriution net+or' reconfiguration method yconsidering the loop closing operation& Section %% defines the traditional net+or' reconfiguration& Section %%% presents the loop closing operation of the reconfigurationnet+or'& Section %7 presents proposed an algorithm for the reconfiguration model for reduces the losses& Section 7 gi.es test results for the %EEE !1 us system for proposedalgorithm II. RECONFIGURATION OF T$E NETWORK B% TRADITIONAL NETWORK  $he mathematical model of the traditional distriution net+or' reconfiguration iscomined +ith the oecti.e function and constraints A. Ob&ect'(e F)ct'! $he reconfiguration model oecti.e function is referred to the minimi0ation of the total po+er losses8 9 f    P (   : ; (  P loss   r  i  i i  7 ( <!=   i  !    '  International journal of Research Review in Engineering and Management (IJRREM) ,Volume -1, Issue - !e -#1#$ %age no &#-'1%age &1  INTERNATIONAL JOURNAL OF RESEARCH REVIEWIN ENGINEERING AND MANAGEMENT (IJRREM) >& Constraint '    ?   p @  : @ @      p df   : @ df  <(=  ,  ! . i  B . f      0 if   i if  <3=<1=  p  if  (  : @ if     s if ma . i, min    . i    . i,ma<=  9  -    9 B!<6=here 9l is the numer of ranches, 9 is the numer of the electrical nodes, ' is thenumer of connecting lines in the us & Pi is the reacti.e po+er of the ranch i, @i is thereacti.e of the ranch i, si is the apparent po+er of the ranch i, 0i is the impedance of the ranch i,  p i and @i are the acti.e and reacti.e load in the us , v i  ,v i ma  ,v i min the currentand .oltage, upper and lo+er limits of the .oltage at the i us&%n the mathematical model ao.e, irchhoff/s la+ is representing from the constraints <(=and<3=& constraints <1= and <= represent the po+er flo+ in the ranches and .oltage in nodesshould 'eep +ithin the limits& constraints <6= is the system radial configuration constraints&$he numer of connected uses and the numer of the connected ranches minus one should e e@ual in the radial configuration& III. RECONFIGURATION OF T$E DISTRIBUTIONNETWORK CONSIDERINGLOOP CLOSING OPERATION International journal of Research Review in Engineering and Management (IJRREM) ,Volume -1, Issue - !e -#1#$ %age no &#-'1%age &  INTERNATIONAL JOURNAL OF RESEARCH REVIEWIN ENGINEERING AND MANAGEMENT (IJRREM) %n the loop closing operation, the mathematical model of the traditional distriutionnet+or' is added some ne+ constraints of the net+or' during the +hole reconfiguration process& A. Ne c!stra'ts $he distriution net+or' reconfiguration prolem +ill e multistage optimi0ation prolem& %n the +hole process, first the interconnection s+itches and sectionali0ing s+itchesshould e closed and open in order minimi0e the losses 4& %t can easily compute the changein the losses y the stimulate the t+o results of the load flo+ studies system configuration efore and after the feeder reconfiguration 34& $his consideration ust satisfied the terminalreconfiguration scheme& hen only one interconnection s+itch is closed, the constraints <6=+ill e changed into <=8  9       9 l<=>efore closing the interconnection s+itches, the section s+itch should e opened& $hesafety constraints +ith loop connection +ith limiter should e considered in the actual process& So, the ine@uality constraints added in the reconfiguration process&  p  if  (  : @ if  (     s if ma<F= . i, min    . it    . i,maC t  !, (,&&&g<#=$he .ariale in the formulation <F= and <#= include the suscript t +hich means the l  thoperation process&  g   is the numer of all the operation during the +hole reconfiguration process& %n the +hole reconfiguration process, the net+or' safety constraints +ere satisfied y the loop closing operation of the ao.e t+o constraints&%n this paper, the po+er flo+ e@uality constraints should e satisfied during the +hole process& $he formula can e +ritten as follo+s8n    <p  d  : @ dt  =   p d  : @ d <! =i  ! International journal of Research Review in Engineering and Management (IJRREM) ,Volume -1, Issue - !e -#1#$ %age no &#-'1%age &&
Recommended
View more...
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks