An efficient model and algorithm for the transmission-constrained multi-site combined heat and power system

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This paper deals with the transmission-constrained multi-site combined heat and power (CHP) problem and formulates it as a linear programming (LP) model with a special structure. CHP systems are treated as an extension of power-only systems. Each site can be treated as a regional energy system to supply both heat and power. Heat demand is satisfied by local production while power demand can be satisfied by local generation plus power exchange over the power network. The challenge of this problem is that power transmission needs to be coordinated with both power and heat production in each site.

The transmission-constrained multi-site CHP system can be operated cost-efficiently according to hourly demand forecast for heat and power by coordinating production and transmission activities among different sites. An efficient network power Simplex algorithm is developed to this end. Numerical experiments with realistic test data show that the algorithm is 7–360 (with average 30) times faster than a commercial LP code.


Original languageEnglish
Pages (from-to)1106-1117
Number of pages12
JournalEuropean Journal of Operational Research
Issue number3
Publication statusPublished - 2017
MoE publication typeA1 Journal article-refereed

    Research areas

  • linear programming, multi-site energy system, combined heat and power production, power transmission network, energy optimization

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