A microgrid-based economic optimal dispatching method for integrated energy systems

An integrated energy system and economic optimization technology, which is applied in the field of economic optimization and dispatching of integrated energy systems based on microgrid, can solve the problems of unreasonable energy structure, large difference between peak and valley power, and low energy utilization rate, and achieves perfect economic optimization dispatch. model, the effect of reducing energy costs and improving energy efficiency

Active Publication Date: 2021-12-03
万克能源科技有限公司
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Problems solved by technology

Industrial parks are complex energy systems dominated by industrial loads, including a variety of production / energy-consuming equipment, and have high requirements for power supply reliability, but generally suffer from low energy utilization, unreasonable energy structure, large peak-to-valley power gap, and environmental pollution. And other issues

Method used

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  • A microgrid-based economic optimal dispatching method for integrated energy systems
  • A microgrid-based economic optimal dispatching method for integrated energy systems
  • A microgrid-based economic optimal dispatching method for integrated energy systems

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Embodiment Construction

[0114] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0115] Such as figure 1In the described embodiment, the comprehensive energy system includes four energy forms of cold, heat, electricity and gas. There are various types of loads in the system and rich functional equipment. The main equipment includes micro gas turbines, photovoltaic cells, waste heat boilers, absorption refrigerators, Household air conditioners, gas boilers, battery energy storage, thermal energy storage, and cold storage devices. The system exchanges power through the centralized power bus and the public grid, and adopts the operating mechanism of "spontaneous generation and self-use, surplus to the grid" to give priority to meeting various local load demands, and at the same time allow the surplus power to be transmitted to the power distribution system. At the same time, there is no gas production within the integrated en...

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Abstract

The invention discloses a method for economically optimal scheduling of a comprehensive energy system based on a microgrid. It includes the following steps: conduct independent modeling for the energy production equipment, energy conversion equipment and energy storage equipment in the factory, and build the energy supply structure of the comprehensive energy system based on the energy exchange network; consider two kinds of work of the ice storage air-conditioning system in series and parallel mode, to further improve the economic optimization scheduling model of the integrated energy system, so that the optimization model is more in line with the actual needs of the project; the optimization goal is to minimize the annual operating cost composed of operation and maintenance costs, power purchase costs, fuel costs, and energy storage depreciation costs, and consider cooling Thermal power balance constraints, equipment operation constraints, and energy storage equipment constraints, optimize the scheduling of the microgrid, and realize the self-optimization of the factory. The invention has the beneficial effects of improving the energy efficiency of the user side, reducing the energy cost of the user, improving economic benefits and energy utilization, and being suitable for different types of comprehensive energy systems in industrial parks.

Description

technical field [0001] The present invention relates to the related technical fields of integrated energy and electric power demand response, in particular to a microgrid-based economically optimized scheduling method for an integrated energy system. Background technique [0002] The integrated energy system (IES) is a next-generation intelligent energy system, which enables systematic, integrated and refined operation and management of energy production, transmission, storage and use of the energy system. The integrated energy system is an important physical carrier of the Energy Internet and the key to realizing technologies such as multi-energy complementarity and energy cascade utilization. Industrial parks are complex energy systems dominated by industrial loads, including a variety of production / energy-consuming equipment, and have high requirements for power supply reliability, but generally suffer from low energy utilization, unreasonable energy structure, large peak...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
Inventor 董树锋
Owner 万克能源科技有限公司
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