An economical dispatching method for distributed combined cooling, heating and power systems with multi-energy storage

A technology of combined cooling, heating and power supply and economic dispatching, applied in information technology support systems, calculations, data processing applications, etc., can solve the problems of lack of research on energy supply methods of combined cooling, heating and power systems, and achieve significant economic benefits and save energy. Resource and fuel consumption reduction effects

Inactive Publication Date: 2019-01-04
NANJING UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

A lot of research has been done on the economic dispatch of energy storage in the energy system, but there is a lack of research on the energy supply mode of the combined cooling, heating and power system with complex energy coupling

Method used

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  • An economical dispatching method for distributed combined cooling, heating and power systems with multi-energy storage
  • An economical dispatching method for distributed combined cooling, heating and power systems with multi-energy storage
  • An economical dispatching method for distributed combined cooling, heating and power systems with multi-energy storage

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Experimental program
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Embodiment

[0089] Established based on the YALMIP software platform figure 1 In the mathematical model shown, a typical day in summer is selected for analysis, and the curves of photovoltaic power generation, cooling load and electric load are as follows: figure 2 As shown, the adverse effects of heat pumps and energy storage on reducing energy coupling in combined cooling, heating and power systems are verified.

[0090] See Table 1 for the parameter setting of the micro-source in CCHP, see Table 2 for the parameters of the energy storage device, and see Table 3 for the investment and operation and maintenance parameters of each equipment. / kWh. Power Generation Efficiency η of Micro-turbine MT =0.25; heat recovery efficiency of waste heat boiler η HB =0.8; Heating efficiency η of gas boiler GB =0.9; the energy efficiency ratio COP of the absorption chiller AC =0.8; the cooling energy efficiency ratio COP of the electric refrigerator EC = 3; the energy efficiency ratio C of the g...

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Abstract

The invention discloses an economic dispatching method of a distributed combined cooling, heating and power supply system considering multiple energy storage. Ground-source heat pump and cold, Heat and electricity energy storage are introduced into the dispatching of the cogeneration system, and a distributed combined cooling, heating and power system with photovoltaic, CCHP, ground source heat pump and various energy storage devices is established. The objective function is to minimize the total cost in the dispatching cycle. The model is modeled by yalmip and solved by cplex solver, so as toobtain the optimal output of each equipment. The invention can realize the coordinated dispatching and conversion among the three energies of cooling, heating and electricity in the CCHP type microgrid, reduces the adverse influence of the energy coupling action, enhances the flexible adjustment ability of the system, and has remarkable economic benefits.

Description

technical field [0001] The invention relates to the field of planning and operation of an integrated energy interconnection system, in particular, an economic scheduling method of a distributed combined cooling, heating and power supply system considering multiple energy storages. Background technique [0002] Reducing pollutant emission levels and improving energy efficiency have been regarded as important goals of countries all over the world. Compared with traditional energy supply methods, cogeneration of cooling, heating and power can realize cascaded utilization of energy of different qualities, and a total energy system that integrates refrigeration, heating and power generation processes has good economical and energy-saving properties. [0003] At present, there have been many studies on energy storage in energy systems. Literature 1 (Li Gang, Li Feng, Kong Liang, Song Zongxun. Economic dispatch of microgrids with energy storage systems under different electricity p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06Y04S10/50
Inventor 桑乃云陈冲王宝华王振益
Owner NANJING UNIV OF SCI & TECH
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