Get access

Feasible solution for dynamic economic load dispatch using feasible operation region

Authors

  • Habibuddin M. Hafiz,

    Non Member
    1. Electric Power and Energy System Laboratory, Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
    2. Faculty of Electrical Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia
    Search for more papers by this author
  • Naoto Yorino,

    Senior Member, Corresponding author
    1. Electric Power and Energy System Laboratory, Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
    • Electric Power and Energy System Laboratory, Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
    Search for more papers by this author
  • Yutaka Sasaki,

    Member
    1. Electric Power and Energy System Laboratory, Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
    Search for more papers by this author
  • Yoshifumi Zoka

    Senior Member
    1. Electric Power and Energy System Laboratory, Graduate School of Engineering, Hiroshima University, 1-4-1, Kagamiyama, Higashihiroshima, Hiroshima 739-8527, Japan
    Search for more papers by this author

Abstract

High penetration of renewable energy in the future power system will pose a big problem to the load dispatch operation. The large disturbance and high forecast error must be considered when scheduling a limited number of controllable generators to follow rapid change in load. This paper proposes a dynamic economic load dispatch (DELD) problem approach based on the concept of a feasible operation region (FOR). FOR is defined as the region that committed generators may operate in to match the load profile without violating the ramp-rate constraints. The DELD problem is solved in two stages. In the first stage, FOR of each generator is computed using recent real-time forecasted load as well as renewable energy generation. In the second stage, a generation schedule is determined by solving the DELD problem interval by interval while considering ramp-rate constraints and FOR constraints. The method can gives feasible solution for feasible load and specify the amount of compensation required for feasible solution for infeasible load. © 2013 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

Ancillary