Steady State Analysis of Cold-Heat-Power-Gas-Steam Optimization in Integrated Energy System Considering Energy Storage Devices

2019 ◽  
Author(s):  
Tao Wang ◽  
Weichun Ge ◽  
Zhanjun Li ◽  
Mo Zhou ◽  
Changyong Yu ◽  
...  
Keyword(s):  
Steady State ◽  
Energy Storage ◽  
Energy System ◽  
Heat Power ◽  
Energy Storage Devices ◽  
Steady State Analysis ◽  
Storage Devices ◽  
Integrated Energy System ◽  
State Analysis

scholarly journals Optimal Configuration of Electric-Gas-Thermal Multi-Energy Storage System for Regional Integrated Energy System

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2586 ◽  
Author(s):  
Dongmei Zhao ◽  
Xuan Xia ◽  
Ran Tao
Keyword(s):  
Energy Storage ◽  
Energy Supply ◽  
Electric Energy ◽  
Energy System ◽  
Optimal Configuration ◽  
Configuration Optimization ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Improve Energy Efficiency ◽  
Integrated Energy System

With the increasing attention of the clean and efficient use of energy, the regional integrated energy system (RIES), as an efficient measure to improve energy efficiency, is tending to play an important role in the field of energy supply. The configuration of multiple energy storage equipment in the RIES can greatly improve the economy of the system, which is an important research direction of RIES planning. However, at present the research on the configuration optimization of electric-gas-thermal multi-energy storage devices in RIES is insufficient. Under this background, a method for configuring the rated capacity and power of various energy storage devices in the RIES under both off-grid and grid-connected operating modes was proposed in this paper, and the configuration optimization model was also established. Firstly, the RIES was divided into four parts: Energy supply, energy conversion, energy storage and the load. Based on the energy hub concept, the four parts were modeled respectively. Secondly, considering the influence of electric energy substitution and operation strategy, the optimal configuration of multi-energy storage devices was modeled as a MILP formulation and solved with the Gurobi optimizer. Finally, a case study verified the effectiveness of the proposed model and the method. Furthermore, the sensitivity analysis was carried out to quantify the influence degree of each factor (such as price, etc.) on the energy storage configuration.

scholarly journals Research on optimal allocation strategy of multi-energy storage in regional integrated energy system considering the quantification of low-carbon economic benefits

2021 ◽  
Vol 256 ◽  
pp. 02008
Author(s):  
Kecheng Wu ◽  
Quan Chen ◽  
Jiajia Huan ◽  
Xin Huang ◽  
Mintong Zhao ◽  
...  
Keyword(s):  
Energy Storage ◽  
Carbon Emissions ◽  
Energy System ◽  
Economic Benefits ◽  
Optimal Configuration ◽  
Configuration Model ◽  
Low Carbon ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Integrated Energy System

The dual pressure of energy crisis and environmental pollution has prompted the world’s energy sector to change in the direction of clean, efficient, sustainable and pollution-free, and RIES (Regional Integrated Energy System) has emerged. The deployment of energy storage devices in the RIES can deepen the connection of each energy system, release the spatial and temporal constraints of multiple energy sources, and thus improve the energy utilization and economy of the integrated energy system. Based on the infrastructure and model of the RIES, this paper studied the synergistic optimal configuration of electricity storage, power-to-gas (P2G) technology, cooling storage and heating storage in the case of multi-energy complementation operation of combined cooling, heating and power supply (CCHP) unit and other equipment. Firstly, an optimal configuration model of multiple energy storage in the RIES based on the optimal operational economy was proposed. Then, the economics and feasibility of configuring different energy storage combinations in the system were analyzed. Finally, the benefits of energy storage devices in the regional integrated energy system were quantified and analyzed by the economic indicators and low carbon emissions reduction indicators. By employing an industrial district RIES in northern China as the study case, the operation scheduling scheme and energy storage allocation scheme were solved by the optimization model proposed in this paper. The results show that the RIES containing multiple types of energy storage can consume more distributed new energy, improve economic efficiency and reduce carbon emissions. And this model has a good application prospect.

scholarly journals Innovations in energy storage

2019 ◽  
Vol 21 (4) ◽  
pp. 33-40
Author(s):  
L. R. Mukhametova ◽  
I. G. Akhmetova ◽  
W. Strielkowski
Keyword(s):  
Energy Storage ◽  
Energy System ◽  
Potential Method ◽  
Energy Storage Devices ◽  
Industrial Growth ◽  
Storage Devices ◽  
Current State ◽  
State Of Affairs ◽  
And Storage

The development of energy storage and storage systems is becoming a potential method for solving the problems of the global energy system. However, there are technical and non-technical barriers to the widespread distribution of energy storage devices. In this regard, it is necessary to identify innovative processes, mechanisms and systems that allow developments in the field of energy storage to contribute to solving the problems of the energy system, as well as to ensure industrial growth at the expense of companies engaged in the development of technologies. This article discusses current advances and trends in energy storage innovation. The scientific novelty of the article consists in a comprehensive review of the current state of affairs in this area and the determination of the main directions of development.

scholarly journals A Unique Electrical Model for the Steady-State Analysis of a Multi-Energy System

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5753
Author(s):  
Danko Vidović ◽  
Elis Sutlović ◽  
Matislav Majstrović
Keyword(s):  
Steady State ◽  
Natural Gas ◽  
Energy System ◽  
Load Flow ◽  
Steady State Analysis ◽  
Gas Network ◽  
Natural Gas Network ◽  
Electrical Analogy ◽  
Unique Model ◽  
State Analysis

In order to decarbonize the energy sector, the interdependencies between the power and natural gas systems are going to be much stronger in the next period. Thus, it is necessary to have a powerful simulation model that is able to efficiently and simultaneously solve all coupled energy carriers in a single simulation environment in only one simulation step. As an answer to the described computational challenges, a unique model for the steady-state analysis of a multi-energy system (MES) using the electrical analogy approach is developed. Detailed electrical equivalent models, developed using the network port theory and the load flow method formulation, of the most important natural gas network elements, as well as of the linking facilities between the power and natural gas systems, are given. The presented models were loaded up into a well-known software for the power system simulation—NEPLAN. In the case studies, the accuracy of the presented models is confirmed by the comparison of the simulation results with the results obtained by SIMONE—a well-known software for natural gas network simulations. Moreover, the applicability of the presented unique model is demonstrated by the MES security of a supply analysis.

An Integrated Energy System With Large-Scale Electrical and Thermal Energy Storage Devices

2017 ◽  
Author(s):  
Tian Zhao ◽  
Qun Chen
Keyword(s):  
Power Flow ◽  
Power Plants ◽  
Large Scale ◽  
Thermal Power ◽  
Operation Time ◽  
Energy System ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Integrated Energy System ◽  
Typical Day

In this contribution we introduced an integrated energy system consists of thermal power plants, combined heat-power (CHP) plants and wind power plants, and aimed to supply electricity and heat to users simultaneously. A large-scale battery, a TES device and heat transfer devices are included also. During the operation time of the battery, the TES device stores the generated heat and meanwhile supplies heat to users. Applying the power flow method, the electro-thermal analogy and the entransy dissipation-based thermal resistance method, we constructed the power flow model of the system. Besides, we optimized the system aimed to minimize wind curtailments. Optimization results presented for a typical day the system reduces wind curtailment percentage from 40.63 % to 13.70 % and supply 5% heat load. Besides, the operation strategy of the battery is to charge at night and discharge in the day.

scholarly journals Commercial mechanism analysis and benefit evaluation of energy storage

2021 ◽  
Vol 271 ◽  
pp. 01002
Author(s):  
Wang Zhiqiang ◽  
Wang Xiaolong ◽  
Mao Yuyang
Keyword(s):  
Energy Storage ◽  
Reference Value ◽  
Energy System ◽  
Voltage Regulation ◽  
Mechanism Analysis ◽  
Energy Storage Devices ◽  
Power Fluctuation ◽  
Storage Devices ◽  
Benefit Evaluation ◽  
Energy Storage Technology

With the increasing proportion of renewable energy in the energy system, problems such as power fluctuation and difficulty in frequency and voltage regulation are aggravated. The application of energy storage can alleviate these problems, and reasonable commercial mechanism analysis and benefit evaluation can promote the adoption of energy storage technology by the society. In this paper, the commercial mechanism is divided into four dominant modes based on market subjects, the main application scenarios of each mode are given, and the dominant modes are compared from the perspectives of technology, economy and society. Finally, the benefit evaluation models of each application scenario are constructed. The content of this paper has a certain reference value for investors of energy storage devices.

An aqueous hybrid electrolyte for low-temperature zinc-based energy storage devices

2020 ◽  
Vol 13 (10) ◽  
pp. 3527-3535 ◽  
Author(s):  
Nana Chang ◽  
Tianyu Li ◽  
Rui Li ◽  
Shengnan Wang ◽  
Yanbin Yin ◽  
...  
Keyword(s):  
Energy Storage ◽  
Low Temperature ◽  
Energy Storage Devices ◽  
Storage Devices

A frigostable aqueous hybrid electrolyte enabled by the solvation interaction of Zn2+–EG is proposed for low-temperature zinc-based energy storage devices.

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