arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2106.01993eess.SYcs.SY
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实时网格与DER协同仿真平台验证大规模DER控制方案

Real-time Grid and DER Co-simulation Platform for Validating Large-scale DER Control Schemes

Adil Khurram, Mahraz Amini, Luis A. Duffaut Espinosa, Paul D. H. Hines, Mads Almassalkhi

摘要:

分布式能源(DER),如响应负载和能量存储系统,是电网运营商可用于通过负载协调平衡供需不匹配的宝贵资源。然而,消费者接受的负载协调方案取决于确保服务质量(QoS),这体现了设备级的约束。由于每个设备都有自己的内部能量状态,因此QoS对机群的影响可以被视为机群范围内的能量限制,在这些能量限制内,必须主动维持聚合的“充电状态”(SoC)。这需要协调认识SoC的DER,响应电网条件,并依赖于快速通信网络。为此,本文提出了一种新的实时网格和DER协同仿真平台,用于验证先进的DER协调方案和表征这样的DER舰队的能力。特别是,我们提出了如何协同仿真平台是合适的:i)测试实时性能的一个大型车队的DER提供先进的网格服务,包括频率调节; ii)在线状态估计,以表征相应的SoC的一个大型车队的DER;和iii)将实际限制的DER和通信,并分析对车队范围内的性能的影响。为了说明所提出的电网DER协同仿真平台的这些好处,我们采用了先进的DER协调方案,称为分组能量管理(PEM),这是一种新的设备驱动的,异步的,和随机化的控制范例DER。然后,将数千个启用PEM的DER添加到佛蒙特州传输系统的真实动态模型中,以完成联合仿真平台的验证。

英文摘要:

Distributed energy resources (DERs) such as responsive loads and energy storage systems are valuable resources available to grid operators for balancing supply-demand mismatches via load coordination. However, consumer acceptance of load coordination schemes depends on ensuring quality of service (QoS), which embodies device-level constraints. Since each device has its own internal energy state, the effect of QoS on the fleet can be cast as fleet-wide energy limits within which the aggregate "state of charge" (SoC) must be actively maintained. This requires coordination of DERs that is cognizant of the SoC, responsive to grid conditions, and depends on fast communication networks. To that effect, this paper presents a novel real-time grid-and-DER co-simulation platform for validating advanced DER coordination schemes and characterizing the capability of such a DER fleet. In particular, we present how the co-simulation platform is suitable for: i) testing real-time performance of a large fleet of DERs in delivering advanced grid services, including frequency regulation; ii) online state estimation to characterize the corresponding SoC of a large fleet of DERs; and iii) incorporating practical limitations of DERs and communications and analyzing the effects on fleet-wide performance. To illustrate these benefits of the presented grid-DER co-simulation platform, we employ the advanced DER coordination scheme called packetized energy management (PEM), which is a novel device-driven, asynchronous, and randomizing control paradigm for DERs. A fleet of thousands of PEM-enabled DERs are then added to a realistic and dynamical model of the Vermont transmission system to complete validation of the co-simulation platform.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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