风力发电站电池储能的聚合器控制,最大限度地提高调节服务的可用性

IF 7.1 Q1 ENERGY & FUELS Energy Conversion and Management-X Pub Date : 2024-09-07 DOI:10.1016/j.ecmx.2024.100703
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引用次数: 0

摘要

电池储能系统可以产生非常快速的双向电力流,因此适合提供风电调节和频率控制服务。虽然电池系统可以提供快速调节服务,但与其他发电设备相比,其储能容量较低,因此应优化电池系统的调节响应,以最大限度地提高服务可用性。本文提出了一种优化电池储能系统频率控制响应的聚合器,以最大限度地提高服务可用性。聚合系统的频率控制响应由单一频率-跳变特性定义。这提供了符合电网规范所需的响应可预测性,并允许聚合系统作为单一实体参与频率控制市场。这种实施方法具有故障安全功能,因为如果无法从聚合器收到优化指令,也不会阻止电池储能系统对频率事件做出响应。这就减轻了与聚合器和电池储能系统之间通信延迟有关的稳定性问题。提供频率控制系统服务和风电调节等多种功能的电池系统可以通过将一定比例的电池容量分配给聚合器方案来参与聚合器方案。在 DIgSILENT PowerFactory 中进行的模拟显示,聚合器成功地延长了电池系统在频率偏移事件中提供全面调节服务的时间。
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Aggregator control of battery energy storage in wind power stations to maximize availability of regulation service

Battery energy storage systems can produce very fast bi-directional power flows, which makes them suitable for providing wind power regulation and frequency control services. Though battery systems can provide fast regulation services, their energy storage capacities are quite low in comparison to other generation sources, so regulation responses from them should be optimized to maximize availability of service. This paper proposes an aggregator that optimizes frequency control responses from battery energy storage systems to maximize service availability. The frequency control response from the aggregated system is defined by a single frequency-droop characteristic. This provides the predictability of response required to comply with grid codes and allows the aggregated system to participate in frequency control markets as a single entity. The method of implementation is fail-safe as failure to receive an optimized order from the aggregator does not prevent the battery energy storage systems from responding to frequency events. This mitigates stability concerns relating to communication delays between the aggregator and battery energy storage systems. Battery systems that provide multiple functions, such as frequency control system services and wind power regulation, can participate in the aggregator scheme by assigning a proportion of the battery’s capacity to the aggregator scheme. Simulations performed in DIgSILENT PowerFactory show that the aggregator successfully extends the duration of full regulation service from the battery systems during frequency excursion events.

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来源期刊
CiteScore
8.80
自引率
3.20%
发文量
180
审稿时长
58 days
期刊介绍: Energy Conversion and Management: X is the open access extension of the reputable journal Energy Conversion and Management, serving as a platform for interdisciplinary research on a wide array of critical energy subjects. The journal is dedicated to publishing original contributions and in-depth technical review articles that present groundbreaking research on topics spanning energy generation, utilization, conversion, storage, transmission, conservation, management, and sustainability. The scope of Energy Conversion and Management: X encompasses various forms of energy, including mechanical, thermal, nuclear, chemical, electromagnetic, magnetic, and electric energy. It addresses all known energy resources, highlighting both conventional sources like fossil fuels and nuclear power, as well as renewable resources such as solar, biomass, hydro, wind, geothermal, and ocean energy.
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