Utilizing scenario-based multi-functional energy storage systems for optimal day-ahead operation of microgrid resources

IF 8.9 2区 工程技术 Q1 ENERGY & FUELS
Ibrahim M. Ibrahim , Walid A. Omran , Almoataz Y. Abdelaziz
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引用次数: 0

Abstract

Single-functional battery units (BUs) are commonly utilized in most studies related to microgrids (MGs). This paper proposes efficient energy management of MG's resources including wind power turbines (WPTs), photovoltaic systems (PVs), BUs, and diesel generator units (DGUs). The proposed study aims to utilize the multi-functional capabilities of BUs to minimize the hourly costs of MG and thereby reduce the overall daily operating costs of MG. To achieve this, various potential scenarios are considered within the system policy to efficiently utilize the BUs for performing multiple functions including matching power generation from the renewable energy sources (RESs) with the demand (G/D) and performing energy arbitrage (EA). This work considers several factors, including two modes of MG operation (grid-connected mode and islanded mode), as well as demand-side management (DSM). Furthermore, the study addresses uncertainties associated with various parameters, affecting wind power and solar power, using the Latin Hypercube Sampling (LHS) approach. The metaheuristic technique known as Moth-Flame Optimization (MFO) is utilized to solve the formulated constrained nonlinear optimization problem. To verify the obtained optimal solutions, the Hybrid Firefly and Particle Swarm Optimization (HFPSO) technique is also utilized. Several case studies, considering various operating conditions, are done to investigate the proposed study. Finally, a comparison is made between four case studies to clarify the importance of the multi-functional BUs in achieving the objective of the proposed study. The results show that the multi-functional BUs case study achieves the lowest daily cost ($7701) compared to the single-functional BUs case studies ($8981.5 for EA and $9052 for G/D). The implementation and solutions of the proposed problem are done using MATLAB software.
利用基于场景的多功能储能系统优化微电网资源的日前运行
在大多数与微电网(MGs)相关的研究中,单功能电池单元(BUs)被普遍采用。本文提出了微电网资源(包括风力涡轮机 (WPT)、光伏系统 (PV)、电池单元 (BU) 和柴油发电机组 (DGU))的高效能源管理。建议的研究旨在利用 BU 的多功能能力,将 MG 的每小时成本降至最低,从而降低 MG 的整体日常运营成本。为实现这一目标,在系统政策中考虑了各种潜在方案,以有效利用 BUs 实现多种功能,包括将可再生能源(RES)发电与需求(G/D)相匹配,以及执行能源套利(EA)。这项工作考虑了多个因素,包括两种 MG 运行模式(并网模式和孤岛模式)以及需求侧管理 (DSM)。此外,该研究还利用拉丁超立方采样(LHS)方法解决了与影响风能和太阳能发电的各种参数相关的不确定性问题。利用被称为蛾焰优化(MFO)的元启发式技术来解决所提出的约束非线性优化问题。为了验证获得的最优解,还使用了萤火虫和粒子群混合优化(HFPSO)技术。考虑到各种运行条件,还进行了几项案例研究,以调查拟议的研究。最后,对四个案例研究进行了比较,以明确多功能 BU 在实现拟议研究目标方面的重要性。结果表明,与单功能 BU 案例研究(EA 为 8981.5 美元,G/D 为 9052 美元)相比,多功能 BU 案例研究的日成本(7701 美元)最低。所提问题的实施和解决方案是通过 MATLAB 软件完成的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of energy storage
Journal of energy storage Energy-Renewable Energy, Sustainability and the Environment
CiteScore
11.80
自引率
24.50%
发文量
2262
审稿时长
69 days
期刊介绍: Journal of energy storage focusses on all aspects of energy storage, in particular systems integration, electric grid integration, modelling and analysis, novel energy storage technologies, sizing and management strategies, business models for operation of storage systems and energy storage developments worldwide.
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