Time Series Power Flow Analysis for Distribution Connected PV Generation
Time Series Power Flow Analysis for Distribution Connected PV Generation
复制标题
分布式光伏发电的时间序列潮流分析
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
R. Dugan
中科院分区：
文献类型：
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作者：
S. Report;R. Broderick;J. Quiroz;M. Reno;A. Ellis;Jeff Smith;R. Dugan
分布式光伏（PV）项目在接入配电网之前必须经过并网研究过程。这些研究旨在确定可能的影响和缓解替代方案。在大多数情况下，无需进行相关研究，通过筛选过程或简单的补充审查研究即可排除系统影响或确定缓解措施。对于一些拟议的项目，需要进行昂贵且耗时的互连研究。进行研究的挑战是双重的。首先，每个研究场景都可能是独特的，因为这些研究通常针对光伏发电容量的具体情况，而光伏发电容量在不同的馈线之间差异很大，并且在同一馈线上分布往往不均匀。这可能会导致特定位置的影响和缓解措施。第二个挑战是光伏功率输出固有的可变性，它可以通过影响电压调节和保护装置的运行，以复杂的方式与馈线运行相互作用。目前用于配电系统规划的典型模拟工具和方法通常不足以准确评估这些潜在影响。本报告展示了如何使用准静态时间序列 (QSTS) 模拟和高时间分辨率数据以更全面的方式评估潜在影响。 QSTS 模拟应用于一组具有高 PV 部署的样品馈送器，以说明该方法的有用性。该报告描述了可以帮助确定光伏如何影响配电系统运行的方法。模拟结果的重点是增强对潜在技术问题的理解。这些示例还重点介绍了执行 QSTS 仿真所需的步骤，并描述了驱动仿真所需的数据。本报告的目标是让公用事业公司和其他负责评估潜在光伏影响的人员能够轻松获取时间序列潮流分析方法。« 更少
Distributed photovoltaic (PV) projects must go through an interconnection study process before connecting to the distribution grid. These studies are intended to identify the likely impacts and mitigation alternatives. In the majority of the cases, system impacts can be ruled out or mitigation can be identified without an involved study, through a screening process or a simple supplemental review study. For some proposed projects, expensive and time-consuming interconnection studies are required. The challenges to performing the studies are twofold. First, every study scenario is potentially unique, as the studies are often highly specific to the amount of PV generation capacity that varies greatly from feeder to feeder and is often unevenly distributed along the same feeder. This can cause location-specific impacts and mitigations. The second challenge is the inherent variability in PV power output which can interact with feeder operation in complex ways, by affecting the operation of voltage regulation and protection devices. The typical simulation tools and methods in use today for distribution system planning are often not adequate to accurately assess these potential impacts. This report demonstrates how quasi-static time series (QSTS) simulation and high time-resolution data can be used to assess the potential impacts in a moremore » comprehensive manner. The QSTS simulations are applied to a set of sample feeders with high PV deployment to illustrate the usefulness of the approach. The report describes methods that can help determine how PV affects distribution system operations. The simulation results are focused on enhancing the understanding of the underlying technical issues. The examples also highlight the steps needed to perform QSTS simulation and describe the data needed to drive the simulations. The goal of this report is to make the methodology of time series power flow analysis readily accessible to utilities and others responsible for evaluating potential PV impacts.« less