scholarly journals Operation Optimization Technology of Integrated Energy System Considering Energy Storage and Automatic Demand Response

2018 ◽  
Vol 452 ◽  
pp. 032038
Author(s):  
Yuan Zhou ◽  
Liyi Tian ◽  
Jun Liu ◽  
Yang Liu ◽  
Weicheng Chen
Keyword(s):  
Energy Storage ◽  
Demand Response ◽  
Energy System ◽  
Operation Optimization ◽  
Integrated Energy System

scholarly journals Research on Battery Energy Storage as Backup Power in the Operation Optimization of a Regional Integrated Energy System

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2990 ◽  
Author(s):  
Jianfeng Li ◽  
Dongxiao Niu ◽  
Ming Wu ◽  
Yongli Wang ◽  
Fang Li ◽  
...  
Keyword(s):  
Energy Storage ◽  
Simulation Optimization ◽  
Energy Systems ◽  
Energy System ◽  
Power Source ◽  
Battery Energy Storage ◽  
Operation Optimization ◽  
Integrated Energy Systems ◽  
Integrated Energy System ◽  
Battery Energy

Recently, integrated energy systems have become a new type of energy supply model. It is clear that integrated energy systems can improve energy efficiency and reduce costs. However, the use of a battery energy storage system (BESS) as a backup power source will affect the operating costs of a regional integrated energy system (RIES) in different situations. In this paper, a regional integrated energy system including wind turbines, photovoltaics, gas turbines and battery energy storage was introduced. In order to obtain the minimum operation cost, an operation optimization model was built. The schedule plans of each unit were optimized by a moth flame optimization (MFO) algorithm. Finally, three different scenarios were proposed for the simulation optimization. The simulation optimization results show that when the BESS is used as a backup power source, the operating cost of the system and the resulting pollutant emissions are less than the diesel generator (DG) set. Therefore, it is worthwhile to use BESS instead of DG as the backup power source in RIES.

scholarly journals Medium- and Long-Term Integrated Demand Response of Integrated Energy System Based on System Dynamics

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 710 ◽  
Author(s):  
Shuhui Ren ◽  
Xun Dou ◽  
Zhen Wang ◽  
Jun Wang ◽  
Xiangyan Wang
Keyword(s):  
Energy Storage ◽  
System Dynamics ◽  
Electric Vehicles ◽  
Demand Response ◽  
Energy System ◽  
Energy Utilization ◽  
Response Model ◽  
Integrated Energy System ◽  
Flexible Load

For the integrated energy system of coupling electrical, cool and heat energy and gas and other forms of energy, the medium- and long-term integrated demand response of flexible load, energy storage and electric vehicles and other demand side resources is studied. It is helpful to mine the potentials of demand response of various energy sources in the medium- and long-term, stimulate the flexibility of integrated energy system, and improve the efficiency of energy utilization. Firstly, based on system dynamics, the response mode of demand response resources is analyzed from different time dimensions, and the long-term, medium-term and short-term behaviors of users participating in integrated demand response are considered comprehensively. An integrated demand response model based on medium-and long-term time dimension is established. Then the integrated demand response model of integrated energy system scheduling and flexible load, energy storage and electric vehicles as the main participants is established to simulate the response income of users participating in the integrated demand response project, and to provide data sources for the medium- and long-term integrated demand response system dynamics model. Finally, an example is given to analyze the differences in response behaviors of flexible load, energy storage and electric vehicle users in different time dimensions under the conditions of policy subsidy, regional location and user energy preferences in different stages of the integrated energy system.

scholarly journals Operation Optimization of Multi-District Integrated Energy System Considering Flexible Demand Response of Electric and Thermal Loads

Energies ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3831 ◽  
Author(s):  
Zhou ◽  
Zheng ◽  
Liu ◽  
Liu ◽  
Mei ◽  
...  
Keyword(s):  
Thermal Energy ◽  
Demand Response ◽  
Thermal Load ◽  
Energy System ◽  
Mixed Integer ◽  
Transfer Model ◽  
Thermal Loads ◽  
Operation Optimization ◽  
Model Based ◽  
Integrated Energy System

Multi-district integrated energy system (IES) can make full use of the complementary characteristics of district power and thermal system, and loads in different districts. It can improve the flexibility and economy of system operation, which has a good development prospect. Firstly, based on the general energy transfer model of the district heating network (DHN), the DHN system is described by the basic equations of the heating network and nodes considering the characteristics of the transmission time delay and heat loss in pipelines. A coupling model of DHN and multi-district IES is established. Secondly, the flexible demand response (FDR) model of electric and thermal loads is established. The load characteristics of each district in IES are studied. A shiftable load model based on the electric quantity balance is constructed. Considering the flexibility of the heat demand, a thermal load adjustment model based on the comfort constraint is constructed to make the thermal load elastic and controllable in time and space. Finally, a mixed integer linear programming (MILP) model for operation optimization of multi-district IES with the DHN considering the FDR of electric and thermal loads is established based on the supply and demand sides. The result shows that the proposed model makes full use of the complementary characteristics of electric and thermal loads in different districts. It realizes the coordinated distribution of thermal energy among different districts and improves the efficiency of thermal energy utilization through the DHN. FDR effectively reduces the peak-valley difference of loads. It further reduces the total operating cost by the coordinated operation of the DHN and multi-district IES.

scholarly journals Economic and efficient multi-objective operation optimization of integrated energy system considering electro-thermal demand response

Energy ◽  
2020 ◽  
Vol 205 ◽  
pp. 118022 ◽  
Author(s):  
Yongli Wang ◽  
Yuze Ma ◽  
Fuhao Song ◽  
Yang Ma ◽  
Chengyuan Qi ◽  
...  
Keyword(s):  
Demand Response ◽  
Energy System ◽  
Operation Optimization ◽  
Multi Objective ◽  
Integrated Energy System
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