Electric Water Heaters for Transactive Systems: Model Evaluations and Performance Quantification
Electric Water Heaters for Transactive Systems: Model Evaluations and Performance Quantification
复制标题
用于交互系统的电热水器：模型评估和性能量化
DOI：
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发表时间：
2022
影响因子：
12.3
通讯作者：
R. Pratt
中科院分区：
文献类型：
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作者：
M. Mukherjee;B. Bhattarai;Sarmad Hanif;R. Pratt
电热水器(EWHs)是实施需求侧控制的合适设备。EWH模型是准确估计EWH灵活性潜力和设计适当控制策略的基本步骤。现有的研究已经采用了许多建模方法来评估EWHs在各种网格应用中的潜力。本文提出了一项分析性研究，从准确性和计算复杂性两个方面评估了最新的EWH模型在交互系统评估研究中的适应性。文中还提出了一种新的交互控制策略，该策略最大限度地利用了EWHs的热惯性来提供网格服务。使用IEEE 123节点分布系统对设备级和馈线级用例的控制策略的性能和建模精度的影响进行了评估。仿真结果表明，该控制策略有效地降低了高峰期间15%的馈线需求，并量化了采用简化建模方法确定EWHs提供电网服务的潜力的影响。
Electric water heaters (EWHs) are opportune appliances for implementing demand-side control. EWH models serve as a fundamental step toward accurately estimating EWH flexibility potential and designing proper control strategies. Existing studies have adapted numerous modeling approaches in evaluating the potential of EWHs for a variety of grid applications. This article presents an analytical study that evaluates the performance of state-of-art EWH models in terms of accuracy and computational complexity for adaptation in evaluation studies for transactive systems. The work also proposes a novel transactive control strategy that optimally utilizes the thermal inertia of EWHs for providing grid services. The performance of the control strategy and the impact of modeling accuracy are evaluated for device-level and feeder-level use cases using the IEEE 123 node distribution system. The simulation results illustrate the effectiveness of the control strategy in reducing the feeder demand during the peak period by 15% and also quantifying the impact of using simplified modeling approaches for determining the potential of EWHs for providing grid services.