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Integrated energy system two-stage optimization scheduling method considering demand response

An integrated energy system and optimized scheduling technology, applied in energy storage, system integration technology, information technology support system, etc., can solve problems such as environmental pollution, restrictions on the consumption of renewable energy power generation, and weakened peak-shaving capabilities, so as to reduce emissions , Improve the effect of consumption and cost saving

Pending Publication Date: 2022-04-19
CHINA THREE GORGES UNIV
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Problems solved by technology

Combined heat and power units undertake the main task in the thermal energy supply of the integrated energy system, but the working mode of the combined heat and power units "constantly determines power by heat" weakens the system's peak-shaving capability and limits the consumption of renewable energy power generation
At the same time, cogeneration units will produce a large amount of CO 2 pollute the environment

Method used

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  • Integrated energy system two-stage optimization scheduling method considering demand response
  • Integrated energy system two-stage optimization scheduling method considering demand response
  • Integrated energy system two-stage optimization scheduling method considering demand response

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Embodiment Construction

[0044] A two-stage optimal scheduling method for an integrated energy system that considers demand response and power-to-gas carbon capture and combined heat and power operation. The invention first proposes a power-to-gas equipment, carbon capture system, distributed power supply and cogeneration The unit collaborative operation model, and then build a comprehensive energy collaborative model on the basis of the above model, and add the autonomous response behavior of the user side of the comprehensive energy system, and propose a two-stage optimization model based on master-slave-evolutionary game to optimize and solve the entire process. Finally, the verification and analysis of numerical examples in five integrated energy system operation models proves the economy and effectiveness of the model and strategy.

[0045] Below in conjunction with accompanying drawing, preferred example is described in detail:

[0046] 1. Modeling of integrated energy system:

[0047] The opti...

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Abstract

The invention relates to an integrated energy system two-stage optimization scheduling method considering demand response. The method comprises the following steps: establishing a combined heat and power generation unit collaborative operation model considering power-to-gas equipment, a carbon capture system and a distributed power supply; establishing an integrated energy system optimization scheduling model of the combined heat and power generation unit collaborative operation model and a user demand response model based on evolutionary game; a comprehensive energy system operator is used as a leader, a user side is used as a follower, a two-stage optimization model of a master-slave evolutionary game is provided, and the master-slave game is solved by using a KKT condition, a Big-M method and a dual theorem. According to the model and the scheduling strategy provided by the invention, the consumption of renewable energy sources is effectively improved, the phenomena of wind curtailment and light curtailment are reduced, the emission of CO2 is reduced, and the energy consumption benefit of a user side is improved while the operation cost of a comprehensive energy system is reduced.

Description

technical field [0001] The invention relates to the technical field of optimal scheduling of integrated energy systems, in particular to a two-stage optimal scheduling method for integrated energy systems considering demand response. Background technique [0002] In recent years, problems such as energy shortage and environmental pollution have become increasingly serious. How to develop clean and efficient energy supply methods and how to achieve sustainable energy development has attracted widespread attention at home and abroad. The low-carbon and high-efficiency utilization of renewable energy represented by scenery is the mainstream of future energy development. The integrated energy system realizes the cascade utilization of energy by giving full play to the complementary characteristics of different energy sources, which is conducive to the consumption of renewable energy power generation, and is an important direction for future energy development. Combined heat and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/46H02J3/32H02J3/38H02J13/00G06Q10/04G06Q10/06G06Q50/06
CPCH02J3/466H02J3/32H02J3/38G06Q10/06315G06Q10/04G06Q50/06H02J2203/10H02J2203/20H02J2310/64Y02E40/70Y02E70/30Y02B70/30Y02B90/20Y04S10/50Y04S10/123Y04S20/12Y04S20/242
Inventor 徐艳春刘海权汪平
Owner CHINA THREE GORGES UNIV
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