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Optimal dispatch strategy for integrated energy systems with CCHP and wind power

Author

Listed:
  • Li, Guoqing
  • Zhang, Rufeng
  • Jiang, Tao
  • Chen, Houhe
  • Bai, Linquan
  • Cui, Hantao
  • Li, Xiaojing

Abstract

With the increasing installed capacity of wind power and the interdependencies among multiple energy sectors, optimal operation of integrated energy systems (IES) with combined cooling, heating and power (CCHP) is becoming more important. This paper proposes an optimal dispatch strategy for IES with CCHP and wind power. Natural gas system is modeled and its security constraints are integrated into the optimal dispatch model. The gas shift factor (GSFgas) matrix for natural gas system is derived to quantify the impact of gas supply and load at each node on the gas flow through the pipelines so that the pipeline flow equation is linearized. The objective function of the optimization model is to minimize the total operation cost of IES. Then the model is transformed into mixed integer linear programming (MILP) formulation to improve the computation efficiency. Numerical case studies conducted demonstrate the lower operation cost of the proposed model facilitating wind power integration.

Suggested Citation

  • Li, Guoqing & Zhang, Rufeng & Jiang, Tao & Chen, Houhe & Bai, Linquan & Cui, Hantao & Li, Xiaojing, 2017. "Optimal dispatch strategy for integrated energy systems with CCHP and wind power," Applied Energy, Elsevier, vol. 192(C), pages 408-419.
    • Handle: RePEc:eee:appene:v:192:y:2017:i:c:p:408-419
    DOI: 10.1016/j.apenergy.2016.08.139
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    References listed on IDEAS

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