scholarly journals Energy Storage Planning of Park Energy System Based On Multi-Dimensional Digital Twin Technology

2021 ◽  
Vol 2108 (1) ◽  
pp. 012059
Author(s):  
Tianlong Xiong ◽  
Chao Yang ◽  
Qing Cheng ◽  
Xianlong Yang ◽  
Shu Lin
Keyword(s):  
Mathematical Model ◽  
Renewable Energy ◽  
Energy Storage ◽  
Energy System ◽  
Heat Emission ◽  
Planning Method ◽  
Feedback Information ◽  
Digital Twin ◽  
Planning Methods ◽  
Installed Capacity

Abstract The existing energy storage planning methods have the problem of imperfect equipment mathematical model, resulting in small installed capacity of renewable energy. An energy storage planning method of Park energy system based on multi-dimensional digital twin technology is designed. This article explains the basic connotation of multi-dimensional digital twin technology and park energy system, and obtains feedback information. Combined with the energy consumption of industrial users, the park’s electricity load is predicted. We used the multi-dimensional digital twin technology to construct the mathematical model of the equipment, extracted the energy conversion law, optimized the energy storage mode of the energy system, and achieved zero heat emission. Case analysis results: the average installed capacity of renewable energy after optimization is 2349.6 kW, 626.6 kW higher than that before optimization, indicating that the energy storage planning method integrating multi-dimensional digital twin technology has a broader application prospect.

scholarly journals Efficiency Assessment of Renewable Energy Sources

2019 ◽  
Vol 114 ◽  
pp. 05001 ◽  
Author(s):  
Oleg V. Marchenko ◽  
Sergei V. Solomin
Keyword(s):  
Mathematical Model ◽  
Renewable Energy ◽  
Energy Storage ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Energy Sources ◽  
Energy Technologies ◽  
Green Certificates ◽  
The Impact

A review of the methods and models used at the ESI SB RAS to assess the effectiveness of renewable energy sources (RES) was carried out. Criteria were formulated and calculation formulas were given for a preliminary assessment of the competitiveness of renewable energy sources as compared to alternative energy supply options. A mathematical model of the world energy system was considered, where renewable energy sources were described by averaged indicators. The model allows for different scenarios of external conditions to explore the prospects for the development of energy technologies, including renewable energy sources. For the analysis of autonomous energy systems with RES, a simulation model was developed so as to treat the processes of production, consumption, and energy storage in their dynamics. The optimization version of the mathematical model eliminates the need for a pre-assignment of the energy flow control algorithm. In this case, it is possible to study systems with the simultaneous presence of several units of energy storage of various types. For the study of renewable energy sources under market conditions, a model was developed so as to take into account the presence of various decision-making hubs, as well as the impact of governmental regulatory bodies in the market. It was shown that the most efficient mechanism for encouraging the development of renewable energy sources is the creation of a market for "green certificates", with the least efficient renewable energy sources to be subsidized.

scholarly journals An extensive review of energy storage system for the residential renewable energy system

2020 ◽  
Vol 18 (1) ◽  
pp. 242
Author(s):  
M. S. A. Mustaza ◽  
M. A. M. Ariff ◽  
Sofia Najwa Ramli
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Power System ◽  
Storage System ◽  
Energy Condition ◽  
Energy System ◽  
Energy Storage System ◽  
Energy Utilization ◽  
Constant Current ◽  
Battery Management System

Energy storage system (ESS) plays a prominent role in renewable energy (RE) to overcome the intermittent of RE energy condition and improve energy utilization in the power system. However, ESS for residential applications requires specific and different configuration. Hence, this review paper aims to provide information for system builders to decide the best setup configuration of ESS for residential application. In this paper, the aim is to provide an insight into the critical elements of the energy storage technology for residential application. The update on ESS technology, battery chemistry, battery charging, and monitoring system and power inverter technology are reviewed. Then, the operation, the pro, and cons of each variant of these technologies are comprehensively studied. This paper suggested that the ESS for residential ESS requires NMC battery chemistry because it delivers an all-rounded performance as compared to other battery chemistries. The four-stages constant current (FCC) charging technique is recommended because of the fast charging capability and safer than other charging techniques reviewed. Next, the battery management system (BMS) is recommended to adapt in advance machine learning method to estimate the state of charge (SOC), state of health (SOH) and internal temperature (IT) to increase the safety and prolong the lifespan of the batteries. Finally, these recommendations and solutions aimed to improve the utilization of RE energy in power system, especially in residential ESS application and offer the best option that is available on the shelf for the residential ESS application in the future.

Innovative Energy Storage Concept for Saipem Offshore Wind2Sub™ Application

2021 ◽  
Author(s):  
Enrico La Sorda ◽  
Francesco Pucci ◽  
Benjamin Mauries ◽  
Birgitte Storheim ◽  
Giorgio Arcangeletti
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Co2 Emissions ◽  
Cost Estimation ◽  
Power Distribution ◽  
Energy System ◽  
Oil Field ◽  
Diesel Generator ◽  
Digital Tool ◽  
Selection Of

Abstract Reducing CO2 emissions is becoming one of the core targets for countries after the Paris agreement, which sets out a global framework to avoid dangerous climate change by limiting global warming to below 2°C and pursuing efforts to limit it to 1.5°C. To meet this objective also oil and gas operators have started to engage in an important effort to reduce the CO2 emissions in their plants and facilities. From this perspective Saipem developed its Wind2Sub, a Wind Power for Long Subsea Tie-Back (LSSTB) concept, where its own pendular floating foundation solution, namely Hexafloat, can host a wind turbine generator (WTG), all the utilities needed for subsea field development and operation (power distribution, chemical storage and injection, control system) and a back-up energy system to compensate the intermittent production due to wind persistence, currently a diesel generator (DG). The present paper will explore new solutions to ensure the continuity of the energy supply from Saipem Wins2Sub, based on green technologies. This may be done by collecting the generated surplus energy from a renewable energy system, in this case from WTG to a topside or subsea power storage. By adopting an Energy Storage System (ESS), it will be possible to use this energy when production from wind is low or null. This concept will replace the diesel generators, or any carbon fuel, so that the whole system will become green self-sustaining, as an energy island, without CO2 emissions. The activities performed during the concept development are articulated through the following steps: a selection of two typical oil field scenarios where Wind2Sub solution can be applicable; screening of the current technologies to store energy and a selection of those viable to the two selected scenarios; wind conditions and WTG power analysis with estimation of the amount of the energy to be stored; preliminary design of the ESS; preliminary cost estimation. The study was carried out by using a digital tool developed by Moss Maritime in the context of a Proof of Concept based on Floating energy storage. The tool allows to evaluate the feasibility of a solution through modellization of different renewable energy scenarios, demand profiles, simulation of operation, pre-sizing of the systems and cost estimation (LCOE, LCOS, LCOH). The ESS combined with Saipem Wind2Sub will be described more thoroughly in the present paper through the explanation of the results achieved within the case studies.

Modeling Renewable Energy Integration in the 2030 Portuguese Power System: The Role of Energy Storage

2019 ◽  
Vol 17 (1) ◽  
Author(s):  
Ricardo Ramos ◽  
Rui Castro
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Power System ◽  
Storage Capacity ◽  
Renewable Energy Sources ◽  
Energy Integration ◽  
Renewable Energy Integration ◽  
Installed Capacity ◽  
Expected Increase

Abstract The main goal of this work is to study the role of energy storage in the context of the Portuguese power system by the year 2030. Portugal is one of the countries in the world with more installed energy storage capacity, namely pumped hydro storage (PHS). The simulations are performed with energyplan tool and allow us to predict the energy mix in Portugal by the year 2030; to forecast the utilization of the storage capacity, namely projections for the energy produced by PHS; to estimate CO2 emissions and percentage of renewable energy sources (RES) utilization; to assess the necessary storage capacity to avoid renewable curtailment; and to evaluate the future needs of installing further storage capacity, either with more PHS capacity or with the introduction of batteries. PHS revealed that it is important to avoid the curtailment of renewable energy, especially in a scenario of higher RES shares. It is shown that the increase in RES contribution would decrease the overall costs of the system, leading to thinking that further efforts should be made to increase the RES installed capacity and go beyond the official RES predictions for 2030. It is also concluded that the predicted storage capacity for 2030 can accommodate the expected increase in variable renewable generation without any further need for investments in PHS or battery solutions.

Coordinated Control of Energy Storage System and Diesel Generator in Isolated Power System

2011 ◽  
Vol 12 (1) ◽  
Author(s):  
Tomonori Goya ◽  
Kosuke Uchida ◽  
Yoshihisa Kinjyo ◽  
Tomonobu Senjyu ◽  
Atsushi Yona ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Control System ◽  
Energy Storage ◽  
Storage System ◽  
Coordinated Control ◽  
Energy System ◽  
Energy Storage System ◽  
Diesel Generator ◽  
Battery System ◽  
Renewable Energy System

Nowadays, renewable energy systems such as wind turbine generators and photovoltaic systems are introduced to power systems. However, the renewable energy system is influenced by weather conditions, and the generated power of the renewable energy system is deviated. For the provision of deviated power, the battery energy storage system is introduced to suppress the deviation of the frequency and voltage in power system. However, it needs the large capacity of a battery system, which increases the capital cost. In this paper, we propose a coordinated control strategy between the diesel generator and the battery system to reduce the capital cost of battery, inverter capacity and storage capacity. The proposed control system incorporates the H-infinity control theory, which enables intuitive controller design in frequency domain. Effectiveness of the proposed control system is validated by simulation results.

Enhancement of renewable energy penetration through energy storage technologies in a CHP-based energy system for Chongming, China

Energy ◽  
2018 ◽  
Vol 162 ◽  
pp. 988-1002 ◽  
Author(s):  
Kexin Wang ◽  
Shang Chen ◽  
Liuchen Liu ◽  
Tong Zhu ◽  
Zhongxue Gan
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Energy System ◽  
Storage Technologies

Comprehensive Thermodynamic Analysis of Steam Storage in a Steam Cycle in a Different Regime of Work: A Zero-Dimensional and Three-Dimensional Approach

2021 ◽  
Vol 144 (5) ◽  
Author(s):  
Paweł Ziółkowski ◽  
Natalia Szewczuk-Krypa ◽  
Anna Butterweck ◽  
Michał Stajnke ◽  
Stanisław Głuch ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Carbon Dioxide Emissions ◽  
Renewable Energy Sources ◽  
Three Dimensional ◽  
Weather Conditions ◽  
Energy System ◽  
Temperature Fields ◽  
Energy Sources ◽  
Accurate Analysis

Abstract Due to the current trends aiming to reduce carbon dioxide emissions by increasing the use of renewable energy sources, changes are required in the operation of coal-fired steam units. The unstable nature of renewable energy sources, depending on weather conditions, means that the amount of energy produced varies and is not always in line with peak demand. To ensure the security and stability of energy supplies in the energy system, renewable sources should cooperate with units independent of environmental conditions. With conventional steam systems, the main issue of such energy storage applied to steam turbine units is presented in this article, which, in the event of a need for a sudden reduction of the system load, prevents overloading of the boiler and turbines, improving the safety of the system. This article presents a thermodynamic model of this energy storage. A zero-dimensional (0D) model was implemented, including the operating parameters of the unit. This model directly relates to the thermodynamic parameters defined at specific points of the thermodynamic cycle. Based on the 0D model, it was shown that the process of loading the energy storage with steam leads to a load reduction of up to 4%. Conversely, when discharging the stored energy, the net power of the steam block may increase by 0.4%. For more detailed analysis, a three-dimensional (3D) nonequilibrium with including cross effects approach was applied. This approach is based on flow models, with phase transitions that determine temperature fields, densities, and phase transition in relevant space, and is used for more accurate analysis. Here, we investigate the relationship between the 0D and 3D approaches in the context of steam storage. The combination of these two approaches is the fundamental novelty of this article.

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