电动汽车快速调频及充电策略对电网频率稳定性的影响

Q4 Energy
A. Ordoño, F. J. Asensio, J. I. San Martín, M. González-Pérez, J. Cortajarena
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引用次数: 0

摘要

随着电网惯性的逐渐减小,系统对负荷不平衡的敏感性不断提高,从而影响频率稳定性。为了解决这个问题,需要更快的频率调节资源。在这种情况下,车辆到电网(V2G)是为此目的提出的概念之一。当电动汽车(ev)停放时,它们的电池可以用作分布式储能系统(EESs),比传统的发电机组(cgu)更快地注入和吸收电力。本文的目的是分析在负荷突然变化的情况下,小型电网中电动汽车的快速频率调节的影响。本文讨论了充电策略(CSs)的影响,因为它们直接影响电动汽车车队监管的规模。通过这种方式,可以使用不同的CSs来实现对称的上下调节,或者最大化其中一个。研究了电动汽车车队动力学对频率暂态的影响。响应速度,因此,频率暂态,受这些动力学的影响。分析的重点将是电动汽车车队与中央控制器之间的通信延迟。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Impact of electric vehicles fast frequency regulation and charging strategies on grid frequency stability
With the gradual reduction of grid inertia, system sensitivity to load unbalances is increasing, compromising frequency stability. To face this problem, faster frequency regulation resources are required. In this context, vehicle-to-grid (V2G) is one of the concepts that is suggested for this purpose. When electric vehicles (EVs) are parked, their batteries can be used as distributed energy storage systems (EESs), injecting and absorbing power faster than conventional generation units (CGUs). The goal of this paper is to analyse the impact of fast frequency regulation of EVs in a small-scale grid, under sudden load variations. In this paper, the effect of charging strategies (CSs) is addressed, as they have a direct impact on the magnitude of the EV fleet regulation. In this way, different CSs can be used to achieve symmetrical up and down regulation, or to maximize one of them. The effect of the EV fleet dynamics in the frequency transient is also studied. The speed of response, and hence, the frequency transient, are influenced by these dynamics. The focus of the analysis will be the communication delay between the EV fleet and the central controller.
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来源期刊
Renewable Energy and Power Quality Journal
Renewable Energy and Power Quality Journal Energy-Energy Engineering and Power Technology
CiteScore
0.70
自引率
0.00%
发文量
147
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