Comprehensive energy system optimization scheduling method considering multiple heat supply modes of combined heat and power generation

An integrated energy system and optimal dispatching technology, which is applied in the field of integrated energy system optimal dispatching considering cogeneration and multi-heating modes, can solve the problems of wind power abandonment, affecting system economy and flexibility, etc.

Pending Publication Date: 2021-11-12
SOUTHEAST UNIV
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Problems solved by technology

[0003] However, combined heat and power units are usually operated on a "heat-rated" basis, which affects the economy and flexibility of the system
When combined heat and power can meet most of the electricity demand during off-peak hours, a large amount of wind power will be abandoned

Method used

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  • Comprehensive energy system optimization scheduling method considering multiple heat supply modes of combined heat and power generation
  • Comprehensive energy system optimization scheduling method considering multiple heat supply modes of combined heat and power generation
  • Comprehensive energy system optimization scheduling method considering multiple heat supply modes of combined heat and power generation

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Embodiment 1

[0056] The structure of the integrated energy system of this embodiment is as follows: Figure 4 shown. The system consists of a 6-node grid and a 6-node heating network. The power system includes conventional generating units, a wind farm and a gas-steam combined cycle cogeneration unit, which consists of a M701F4 gas turbine, a triple-pressure reheat waste heat boiler and a steam turbine (TC2F-40.5). A method for optimal dispatching of an integrated energy system considering multiple heat supply modes of combined heat and power generation, comprising the following steps:

[0057] S1, establish a full-mode operation model of the CHP unit, the full-mode operation model includes extraction mode operation, back pressure mode operation and switching mode operation, the model is:

[0058]

[0059]

[0060] Ω chp =Ω ae ∪Ω bp ∪{(0,0)}

[0061] It should be noted that the switching process from back pressure mode to extraction mode requires energy consumption. Therefore,...

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Abstract

The invention discloses a comprehensive energy system optimization scheduling method considering multiple heat supply modes of combined heat and power generation, and the method comprises the steps: building an optimization scheduling model which comprises a combined heat and power generation unit full-mode operation model, a heat supply network model and a building model, wherein the combined heat and power generation full-mode operation comprises an extraction condensing operation mode, a heat supply network operation mode and a building operation mode; and adopting a back pressure mode operation and a switching operation mode, and giving out constraint conditions under full-mode operation. Finally, a Fortuny-Amat-McCarl method is adopted to convert the proposed optimal scheduling method into a mixed integer quadratic programming model for solving, so that collaborative optimization of the electric heat energy flow under the full-mode operation of the cogeneration unit is realized, and the flexibility and economical efficiency of the comprehensive energy system are improved.

Description

technical field [0001] The invention belongs to the field of integrated energy system dispatching, and specifically relates to an integrated energy system optimal dispatching method considering combined heat and power generation and multiple heat supply modes. Background technique [0002] Human's increasing energy consumption and severe environmental problems urgently require us to develop a low-carbon and sustainable energy system. As a safe, efficient, clean, and flexible energy system, the integrated energy system improves the overall efficiency of energy and the consumption of renewable energy through multi-energy complementarity and energy cascade utilization. In engineering applications, the integrated energy system represented by the power-heat supply coupling system improves the flexibility of power system operation, promotes the consumption of wind power, and reduces energy costs, so it is getting more and more attention. The heat and power integrated energy syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q10/04G06Q50/06G06F30/20G06F111/04G06F111/06G06F113/04G06F113/06G06F113/14G06F119/08
CPCG06Q10/0631G06Q10/04G06Q50/06G06F30/20G06F2113/06G06F2111/04G06F2113/04G06F2111/06G06F2113/14G06F2119/08
Inventor 顾伟丁世兴陆帅俞睿智姚帅
Owner SOUTHEAST UNIV
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