Capacity optimization of hybrid energy storage system for microgrid based on electric vehicles’ orderly charging/discharging strategy

Yang, Ao; Wang, Honglei; Li, Bin; Tan, Zhukui

doi:10.1016/j.jclepro.2023.137346

Cited by 18 publications

(5 citation statements)

References 45 publications

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“…terial. From the relevant literature [23,24], the reasons for the excellent electrochemical performance of 0.5% Nd-NiMoO4 electrode material are summarized and analyzed: (1) The porous nanosheet structure has a large specific surface area, which provides for the reaction of the rich active sites, increases the contact area between the electrode and the electrolyte, and accelerates the rate of the reaction. (2) The NiMoO4 material has strong redox activity, as well as excellent reversible charge storage properties.…”

Section: Resultsmentioning

confidence: 99%

“…With the shortage of fossil energy and the increasing environmental pollution, today's world is increasing the utilization of sustainable energy, as well as the rapid development of electric vehicles, and the performance demand for energy storage devices is also increasing day by day [1,2]. Supercapacitors in energy storage devices have the advantages of high power density, good cyclic stability performance, fast charging speed, and green environmental protection, which have received extensive attention from the people [3].…”

Section: Introductionmentioning

confidence: 99%

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Study of Nd-NiMoO4 Nanocomposites Prepared by Sol–Gel Method and Their Capacitive Properties

An,

Ma,

Nie

et al. 2024

Coatings

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In this paper, NiMoO4 electrode materials doped with different concentrations of Nd rare earth metals were prepared by sol–gel method. Its morphology, structure, and spectral analysis were characterized by different scanning instruments, and the experimental results show that the NiMoO4 electrode material after adding 0.5% Nd doping showed excellent capacitance performance, with a specific capacity of 2182 F/g at a current density of 1 A/g. The capacitance retention was still 98.5% after 10,000 cycles at a current density of 5 A/g, which has a better electrochemical performance compared with the NiMoO4 material with superior electrochemical performance. In addition, an asymmetric capacitor device was prepared using 0.5% Nd-NiMoO4 material and CNTs as positive and negative electrodes, respectively, and the device showed a high energy density of 73.5 Wh/kg. In addition, the capacitor device still had a capacitance retention of 91.9% after 10,000 cycles. This paper provides an effective reference route for the preparation of rare-earth-doped bimetallic oxide electrode materials.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of Nd-NiMoO4 Nanocomposites Prepared by Sol–Gel Method and Their Capacitive Properties

An,

Ma,

Nie

et al. 2024

Coatings

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“…Leveraging existing infrastructure, particularly from electric vehicles, presents compelling economic and societal benefits compared to installing additional storage facilities within buildings. Consequently, the choice of energy storage options has become a focal point in current research endeavors [17]. Furthermore, different types of buildings exhibit distinct energy usage patterns and external energy requirements.…”

Section: The Workflow Of This Studymentioning

confidence: 99%

Methods for Coordinating Optimization of Urban Building Clusters and District Energy Systems

Wu,

Liu

2024

Systems

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In the face of increasingly severe global climate change, achieving zero-carbon development goals has gradually become a consensus across various industries. Enhancing the electrification level of building energy use and increasing the proportion of renewable energy applications are primary means to achieve zero-carbon development in the construction sector, which also imposes higher demands on energy system planning and operation. This study focuses on urban building clusters and district energy systems, proposing coordinated optimization methods for energy supply and demand. On the demand side, strategies such as utilizing energy storage from electric vehicles are applied to enhance the flexibility of building energy use, along with methods to improve building load leveling rates and increase renewable energy penetration rates. On the supply side, a dual-layer planning method is proposed for the optimal configuration and operation of district energy systems considering the construction of shared energy storage stations. Results indicate that the optimization methods for urban building clusters significantly improve the flexibility of building energy use, and different functional compositions of building clusters can enhance load leveling and renewable energy penetration rates to a certain extent. The dual-layer optimization method for district energy systems can further exploit the potential of building energy flexibility, thereby achieving a balance between economic and environmental benefits.

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“…Electric vehicles (EVs) with zero emissions and high-efficiency conversions hold great promise [5][6][7]. With the increasing penetration rate of EVs [8], the charging problems faced have also been intensely studied [9,10]. The relevant research results prove that a large number of users tend to charge at 19:00 based on the disorderly charging scheme [11], superimposing the charging load based on the original load of the grid [12], resulting in the phenomenon of "Peak on Peak" [13], which significantly affects the stability of power grid generation [14].…”

Section: Introductionmentioning

confidence: 99%

Research on Optimization of Valley-Filling Charging for Vehicle Network System Based on Multi-Objective Optimization

Hu,

Zhou,

Jiang

et al. 2023

Sustainability

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Many electric vehicles connected to the grid will lead to problems such as poor stability of power grid generation. The key to solving these problems is to propose an efficient, stable, and economical valley-filling charging scheme for electric vehicles and grid users in the vehicle network system. Firstly, the convex optimization theory is used to make the grid achieve the optimization effect of valley filling. On this basis, the electricity price scheme with a time-varying coefficient as the variable is proposed to meet the single objective optimization of EV charging cost optimization, and its degree of influence on the grid valley-filling effect is analyzed. Secondly, based on the competitive relationship between EV charging cost and battery life, the P2D model is simplified and analyzed, and the attenuation law of battery capacity is quantitatively described. The multi-objective optimization problem is established to express in a Pareto matrix. Finally, the compatibility between the multi-objective optimization and grid valley charging is analyzed. The simulation results show that: (1) The convexity electricity price scheme can satisfy the requirements of various retention rates to achieve the valley-filling effect; (2) The filling effect is satisfied with the electricity price scheme that minimizes the charging cost, and the key factors affecting the filling effect are analyzed; (3) The multi-objective optimization scheme with charging cost and battery life is compatible with the valley-filling effect.

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Capacity optimization of hybrid energy storage system for microgrid based on electric vehicles’ orderly charging/discharging strategy

Cited by 18 publications

References 45 publications

Study of Nd-NiMoO4 Nanocomposites Prepared by Sol–Gel Method and Their Capacitive Properties

Study of Nd-NiMoO4 Nanocomposites Prepared by Sol–Gel Method and Their Capacitive Properties

Methods for Coordinating Optimization of Urban Building Clusters and District Energy Systems

Research on Optimization of Valley-Filling Charging for Vehicle Network System Based on Multi-Objective Optimization

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