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A Novel Technique for Transmission Loss Allocation in Restructured Power System

  • Naimul Hasan
  • Ibraheem Nasiruddin
  • Yudhishthir PandeyEmail author
Original Article
  • 12 Downloads

Abstract

Transmission loss allocation in a restructured power system is vital in today’s electricity market around the world. The problem of transmission loss allocation among the various participants is getting more attention with the increase of the competition level in electricity markets. In this paper, a novel routing algorithm with minimum transmission loss is proposed for judicious allocation of transmission losses over a network. Proposed routing algorithm computes the power flow path through transmission line from the individual generator to load utilizing the shortest path with minimum loss criterion. The load demand is fulfilled with the power flow through the decisively selected transmission path. The new method of transmission loss allocation has distinct advantages over existing methods as locational dependence of loss allocation to both generator and load. The proposed algorithm is implemented on IEEE-30 bus system. The experimental results are obtained with proposed routing algorithm and compared with existing method. Results obtained using proposed method illustrate significant improvements in reducing the transmission losses.

Keywords

Loss allocation Optimal DG placement Restructured power system Routing algorithm 

List of symbols

s1, s2

Switches

Ib

Branch current

IL

Total load current

Ib1Ib2

Current in arbitrary branch b due to generators 1 and 2

ab1ab2

Current distribution factor in line b for generators 1 and 2

I1I2

Current supplied by generator 1 and 2

θ1θ2

Phase angle of currents I1 and I2

P1P2

3φ generated power of generator 1 and 2

cos φ1, cos φ2

Power factors associated with generator 1 and 2

Ploss

Total transmission loss

B11B22B12

Loss coefficients

xijk

Routing decision variable for line k connected between bus i and j

k

Arbitrary line connected between bus i and j

n

Number of buses in network

m

Number of lines

PG

Total generated power

PD

Total demand

Pin

Net incoming power at a bus

Pout

Net outgoing power from a bus

Pk

Power flow through \(k{\text{th}}\) line

Pk,minPk,max

Minimum and Maximum value of power through line k

\(P_{{loss(G_{p} toD_{qi} )}}\)

Transmission loss in serving power from the generator Gp to Dq

Notes

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Copyright information

© The Korean Institute of Electrical Engineers 2019

Authors and Affiliations

  • Naimul Hasan
    • 2
  • Ibraheem Nasiruddin
    • 2
  • Yudhishthir Pandey
    • 1
    Email author
  1. 1.Department of Electrical EngineeringJamia Millia IslamiaNew DelhiIndia
  2. 2.Department of Electrical EngineeringQassim UniversityBuraydahKingdom of Saudi Arabia

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