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Research on Multi-Time Scale Optimization Strategy of Cold-Thermal-Electric Integrated Energy System Considering Feasible Interval of System Load Rate
- Source :
- Energies, Vol 12, Iss 17, p 3233 (2019), Energies; Volume 12; Issue 17; Pages: 3233
- Publication Year :
- 2019
- Publisher :
- MDPI AG, 2019.
-
Abstract
- The integrated energy system coupling multi-type energy production terminal to realize multi-energy complementarity and energy ladder utilization is of great significance to alleviate the existing energy production crisis and reduce environmental pollution. In this paper, the topology of the cold-thermal-electricity integrated energy system is built, and the decoupling method is adopted to analyze the feasible interval of load rate under the strong coupling condition, so as to ensure the “source-load” power balance of the system. Establishing a multi-objective optimization function with the lowest system economic operation and pollution gas emission, considering the attribute differences and energy scheduling characteristics of different energy sources of cold, heat and electricity, and adopting different time scales to optimize the operation of the three energy sources of cold, heat and electricity, wherein the operation periods of electric energy, heat energy and cold energy are respectively 15 min, 30 min and 1 h; The multi-objective problem is solved by standard linear weighting method. Finally, the mixed integer nonlinear programming model is calculated by LINGO solver. In the numerical simulation, the hotel summer front load parameters of Zhangjiakou, China are selected for simulation and compared with a single time scale system. The simulation results show that the multi-time scale system reduces the economic operation cost by 15.6% and the pollution gas emission by 22.3% compared with the single time scale system, it also has a wider feasible range of load rate, flexible time allocation, and complementary energy selection.
- Subjects :
- Pollution
Control and Optimization
multi time scales
Computer science
020209 energy
media_common.quotation_subject
Energy Engineering and Power Technology
Environmental pollution
02 engineering and technology
lcsh:Technology
01 natural sciences
multi-objective
optimize operation
Electric energy
Control theory
0103 physical sciences
Thermal
0202 electrical engineering, electronic engineering, information engineering
cold-thermal-electricity integrated energy system
multi-energy complementation
feasible interval of load rate
Electrical and Electronic Engineering
010306 general physics
Engineering (miscellaneous)
media_common
Computer simulation
lcsh:T
Renewable Energy, Sustainability and the Environment
business.industry
Heat energy
Solver
Weighting
Electricity
Energy source
business
Decoupling (electronics)
Energy (miscellaneous)
Subjects
Details
- ISSN :
- 19961073
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Energies
- Accession number :
- edsair.doi.dedup.....10ed11d8cf5f25e79e4ae8d28a224f73