Reverse Search Strategy Based Optimization Technique to Economic Dispatch Problems with Multiple Fuels

  • Prakash ArumugamEmail author
  • Madhavan Panchapakesan
  • Sudhakar Balraj
  • Ravichandran Coimbatore Subramanian
Original Article


This research article constitutes an efficient way to extract the minimum fuel cost for the economic dispatch problem considering multiple fuel options along with valve point effects. In general one convex cost function for one generator is assumed. The piecewise quadratic cost function is represented by selecting the convex cost function more than one for a generator. A new approach referred as Power Search Algorithm (PSA) based on reverse search strategy is suggested along with various constraints in ED. The proposed algorithm has been evaluated on a ten unit multi-fuel system for various power demands with different fuel input options. The outcomes acquired from the simulation are of good quality and furthermore it reveals that the proposed algorithm performs superior than the various algorithms discussed.


Economic dispatch (ED) Multi-fuel option (MFO) Power search algorithm (PSA) Prohibited operating zones (POZ) Reverse search approach (RSA) Valve-point effects (VPE) 

List of Symbols


Power demand


Power input


Maximum power input


Minimum power input


Power loss


Numerical variable


Minimum fuel cost


Redefined minimum fuel cost



Hierarchical modelling


Adaptive Hopfield neural network


Hopfield neural network


Evolutionary programming


Modified particle swarm optimization


Artificial immune system


Genetic algorithm-combinatorial optimization problem


Composite cost function


Improved particle swarm optimization


Hybrid genetic algorithm


Improved bat algorithm


Self-adaptive differential evolution


Power search algorithm-reverse search approach



The authors thank the management of Sri Krishna College of Technology and Sri Ramakrishna Engineering College, Coimbatore for providing their continuous support for completing this research work.


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Copyright information

© The Korean Institute of Electrical Engineers 2019

Authors and Affiliations

  • Prakash Arumugam
    • 1
    Email author
  • Madhavan Panchapakesan
    • 2
  • Sudhakar Balraj
    • 3
  • Ravichandran Coimbatore Subramanian
    • 4
  1. 1.Department of Electrical and Electronic EngineeringSri Krishna College of TechnologyCoimbatoreIndia
  2. 2.Department of Computer Science and EngineeringSRM UniversityChennaiIndia
  3. 3.Department of Electronics and Communication EngineeringAnnamalai UniversityChidambaramIndia
  4. 4.Department of Electrical and Electronic EngineeringSri Ramakrishna Engineering CollegeCoimbatoreIndia

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