A review and outlook on cloud energy storage: An ...
In the CES model, energy storage resources are put into a sharing pool, which can be called an "energy storage cloud". Under this situation, energy storage …
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Thermal and mechanical properties of thermal energy storage …
Therefore, building energy efficiency has become a focus of attention, because of its large scale and high energy consumption. Solar energy is the most widely used renewable energy source and has been used in the field of building energy efficiency [3,4]. However, solar thermal systems have certain limitations due to seasonal and …
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Capacity Aggregation and Online Control of Clustered Energy …
This paper proposes an analytical method to determine the aggregate MW-MWh capacity of clustered energy storage units controlled by an aggregator. Upon receiving the gross …
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Aggregate regulation strategy of distributed energy storage under …
AbstractThe reform of power spot market in China provides a new profit mode, determining energy trading strategy based on the power spot prices for distributed energy storages. However, individually accessing every distributed energy storage to the dispatch centre results in a high cost and low efficiency, which needs to be improved by …
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Reliability Evaluation of an Aggregate Battery Energy Storage …
DOI: 10.1109/PESGRE45664.2020.9070561 Corpus ID: 216044086 Reliability Evaluation of an Aggregate Battery Energy Storage System Under Dynamic Operation @article{Pham2020ReliabilityEO, title={Reliability Evaluation of an Aggregate Battery Energy Storage System Under Dynamic Operation}, author={Trang Thi Pham and Tsai …
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Sustainability | Free Full-Text | Decomposition …
As the largest energy consumer, China is facing greater pressure to guarantee energy supply and energy security. Investigating the driving factors of energy consumption is very important. Decomposition analysis …
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Thermal-mechanical behaviors of concrete with ...
Firstly, there is a lack of fabrication methods for salt hydrate PCM-based thermal energy storage aggregate to develop structural–functional concrete. Secondly, research on the strength variation of TESC during the heating stage has not been carried out, and its corresponding mechanism has not
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Reliability Evaluation of an Aggregate Battery Energy Storage …
A system with multiple battery energy storage devices should be used in the MG to improve power supply reliability of these renewable energy sources. This system is defined as an aggregate battery energy storage system (ABESS). To demonstrate the significance of the ABESS in the MG, its operation reliability will be analyzed in this paper.
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Time series aggregation for energy system design: Modeling seasonal storage …
Gabrielli et al. [24] propose two new comprehensible methods (M1 and M2) for modeling seasonal storage together with time series aggregation. The majority of the system equations are also modeled with typical days while the storage equations hold for the whole original time grid (M1), which is described by a sequence of typical days.
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An Aggregation Model and Evaluation Method of Distributed …
Aimed at the problems of wide area distribution, resource dispersion, and inefficient aggregation of distributed energy storage, this paper proposes an aggregation model …
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Paraffin/expanded vermiculite composite phase change material as aggregate for developing lightweight thermal energy storage …
In this study, a new paraffin/expanded vermiculite composite phase change material (PCM) was tailor-made as aggregate for developing lightweight thermal energy storage cement-based composites (LW-TESCCs). Vermiculite calcined at 800 C for 1 h (EVM-800) can be considered as the optimum paraffin supporting matrix candidate, …
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Research on Capacity Allocation Method of Virtual Power Plant with Communication Base Station Energy Storage …
Virtual power plant can aggregate distributed resources and obtain large-scale economic benefits. Communication base station energy storage is usually in an idle state, so it can provide a considerable control potential for virtual power plant. Aiming at the capacity allocation problem of virtual power plant with communication base station energy …
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Aggregated applications and benefits of energy storage
Criteria and process for selecting energy storage technology. Energy storage applications initiate from the top levels of the electricity grid and descend to the …
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Performance of energy storage system containing cement mortar and PCM/epoxy/SiC composite fine aggregate …
Incorporating thermal energy storage aggregate (TESA) in the AAS binder can further decrease the thermal conductivity. In addition, the AAS-based composite can significantly reduce CO 2 emissions by more than 10% than the OPC-based case due to the improved thermal properties and the consequent reduction in carbon footprint from …
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Preparation and properties of fatty acids based thermal energy storage aggregate …
Section snippets PCM preparation Three fatty acids with analytical purities were used to prepare a composite PCM. They are laurie acid (C 12 H 24 O 2), myristic acid (C 14 H 28 O 2) and palmitic acid (C 16 H 32 O 2) with melting temperature of around 26 C, 50 C and 64 C and latent heat storage capacity of approximately 184 kJ/kg, 204 kJ/kg …
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Day-ahead scheduling of large numbers of thermostatically
The energy storage model is a good method to deal with these characteristics, and there have been several papers that propose energy storage models for TCLs [12,13,14,15,16,17]. ... The relationship between the heat exchange power and the aggregate energy storage is established in the equivalent energy storage model, …
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Aggregating Distributed Energy Storage: Cloud-Based Flexibility ...
A new type of business model has been proposed that uses cloud-based platforms to aggregate distributed energy storage resources to provide flexibility services to power …
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[PDF] A Novel Dynamic Peer-to-Peer Clustering Algorithm and Its Application to Aggregate Energy Storage …
In the second application, the algorithm is used to form a virtual energy storage from batteries distributed in a microgrid. The proposed distributed dynamic clustering algorithm enables to group agents based on their pre-selected feature states by comparing the distance of the agents'' current feature states with average estimates of the …
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Aggregating Energy Flexibility for Demand-Side Management in Manufacturing Companies – A Two-Step Method …
To overcome this challenge, we developed a method for the aggregation of energy flexibilities that is based on a generic energy flexibility data model. The method proposes a two-step approach to aggregate flexibilities cost efficiently and considers manufacturing specific limitations.
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Aggregating Distributed Energy Storage: Cloud-Based Flexibility ...
Energy storage, as an effective and adaptable solution, may still be too expensive for peak shaving and renewable energy integration. A new type of business model has been proposed that uses cloud-based platforms to aggregate distributed energy storage resources to provide flexibility services to power systems and consumers. In such …
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Assessing the feasibility of impregnating phase change materials in lightweight aggregate for development of thermal energy storage …
Assessing the feasibility of impregnating phase change materials in lightweight aggregate for development of thermal energy storage systems Author links open overlay panel Mohammad Kheradmand a 1, João Castro-Gomes b, Miguel Azenha c 2, Pedro D. Silva d 3, José L.B. de Aguiar a 4, Salah E. Zoorob e 4
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Reliability Evaluation of an Aggregate Battery Energy Storage System Under Dynamic Operation …
Distributed generators in a microgrid (MG) mostly are renewable energy sources. A system with multiple battery energy storage devices should be used in the MG to improve power supply reliability of these renewable energy sources. This system is defined as an aggregate battery energy storage system (ABESS). To demonstrate the significance of …
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Study on design, preparation, and performance of low-temperature rising concrete with energy storage aggregate…
In this study, a type of energy storage phase change low-temperature rising concrete was designed and prepared to reduce the cracking risk of mass concrete. First, a type of energy storage coarse aggregate (ESA) was prepared using a semi-dry method with cement and fly ash as matrix materials, mixed with carbon black (CB), carbon fiber (CF), and phase …
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Carbon sequestration and storage in concrete: A state-of-the-art review of compositions, methods…
The energy and cost requirements are, however, expected to drop, given the ongoing worldwide efforts on carbon capture and storage [130], [26]. As for the flue gas, although it provides much lower purity (i.e., in the range of 20% ± 5%), no post-production treatment is required.
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An Aggregation Model and Evaluation Method of Distributed Energy Storage …
YE Peng, LIU Siqi, GUAN Duojiao, JIANG Zhunan, SUN Feng, GU Haifei. An Aggregation Model and Evaluation Method of Distributed Energy Storage Based on Adaptive Equalization Technology[J]. Journal of Shanghai Jiao …
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Assessing the feasibility of impregnating phase change materials …
1. Introduction. Phase change materials (PCMs) are used as thermal storage systems for assisting thermal control, as a consequence of their ability to store and release thermal energy during phase change processes (melting and freezing) [1].During the process of solidification, PCMs release energy in the form of latent heat, and conversely, …
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Reliability evaluation of an aggregate battery energy storage system in microgrids under dynamic operation …
Energy storage systems can be divided into two categories, including household energy storage (HES) and aggregate energy storage (AES). Although the total power amount of a household-sized microgrid is quite small at few kilowatts, the investment cost is a possible downside for the HES system.
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A coordinated control method of aggregate AC load for auxiliary …
This paper proposes a coordinated control method of aggregate AC loads for ancillary frequency regulation service in the power system. Two types of AC loads, namely, FFAC and IAC, are exploited to support the system frequency regulation considering their flexibility.
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(PDF) Aggregate Model of Massive Distributed Energy Storage for …
The method has the effectiveness of central control methods and can effectively decrease the energy storage required for overvoltage prevention, yet it eliminates the need for a broadband and fast ...
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Aggregate regulation strategy of distributed energy …
However, individually accessing every distributed energy storage to the dispatch centre results in a high cost and low efficiency, which needs to be improved by connecting through the aggregator. To …
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Index decomposition and attribution analysis of aggregate energy …
We analyze the driving factors of energy intensity change (2000–2015) in Shanxi Province, China. • We further provide a detailed contribution analysis of 38 regional characterization sectors. • Over the study period, Shanxi''s aggregate energy intensity index
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