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Optimization and Management of On-Site Power Plants Under Time-of-Use Power Price: A Case Study in Steel Mill

  • Xiancong ZhaoEmail author
  • Huanmei Yuan
  • Zefei Zhang
  • Hao Bai
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

The implementation of time-of-use (TOU) power tariff in Chinese steel industry provides an opportunity for steel mills to reduce electricity bills through an optimal collaboration between the on-site power plant (OSPP) and energy storage equipment (gasholders). In this paper, a mixed-integer linear programming (MILP) based scheduling model was proposed to achieve the optimal operation of OSPP and gasholders in a steel mill under TOU tariff. Compared with previous models, we considered the influence of TOU power tariff on the optimal scheduling of OSPP. The results of a case study demonstrate that the optimization model can achieve better peak-valley shifting of the electricity generation and decrease the electricity purchasing cost by 7.5% with improved gasholder stability. In addition, the overall power generation efficiency can be increased by 2.13% using the proposed model, which indicates that the byproduct gases can be effectively and efficiently used.

Keywords

Steel making industry Byproduct gases Optimal scheduling Combined cycle power plants Time-of-use (TOU) power price 

Notes

Acknowledgements

This research was supported by Boya post-doctoral project of Peking University.

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Copyright information

© The Minerals, Metals & Materials Society 2020

Authors and Affiliations

  • Xiancong Zhao
    • 1
    Email author
  • Huanmei Yuan
    • 2
    • 3
  • Zefei Zhang
    • 2
    • 3
  • Hao Bai
    • 2
    • 3
  1. 1.Department of Industrial Engineering and ManagementPeking UniversityBeijingChina
  2. 2.State Key Laboratory of Advanced MetallurgyUniversity of Science and Technology BeijingBeijingChina
  3. 3.School of Metallurgical and Ecological EngineeringUniversity of Science and Technology BeijingBeijingChina

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