评估随着逆变器资源渗透率上升的电网强度
Evaluating Grid Strength with Rising Penetration of Inverter Based Resources
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中文总结 AI 辅助
本文针对逆变器资源高渗透下电网强度评估问题，提出基于SSCR、WSCR、CSCR三种指标及ANODE平台快照的方法，并探讨同步调相机缓解策略。
中文摘要 AI 辅助
多年来，弗吉尼亚州道明能源公司（DEV）经历了反复出现的电能质量扰动，包括电压和功率振荡，尤其是在逆变器发电量较大的地区。虽然这些现象表明与系统强度可能存在潜在关联，但尚未建立确定的相关性。本文提出了评估DEV网络系统强度并识别可能易受此类扰动影响区域的方法。为此，评估了三种电网强度指标：简单短路比（SSCR）、加权短路比（WSCR）和复合短路比（CSCR）。历史事件数据将使用DEV专有的按需分析（ANODE）平台提供的稳态快照进行分析，该平台提供10分钟间隔的潮流数据。这些快照将使用开发的软件工具进行处理，以计算系统强度指标。分析将调查系统强度与观测扰动之间的潜在相关性。在识别出此类相关性的地方，研究将进一步评估部署同步调相机（SynCons）作为缓解策略的影响。
英文摘要
Over the years, Dominion Energy Virginia (DEV) has experienced recurring power quality disturbances, including voltage and power oscillations, particularly in areas with significant inverter-based generation. While these phenomena suggest a potential relationship to system strength, no definitive correlation has yet been established. This paper presents methodologies for assessing system strength across the DEV network and identifying regions that may be vulnerable to such disturbances. To this end, three grid-strength metrics are evaluated: the Simple Short-Circuit Ratio (SSCR), the Weighted Short-Circuit Ratio (WSCR), and the Composite Short-Circuit Ratio (CSCR). Historical event data will be analyzed using steady-state snapshots from DEV's proprietary Analysis on Demand (ANODE) platform, which provides 10-minute interval load-flow data. These snapshots will be processed using a developed software tool to compute system strength metrics. The analysis will investigate potential correlations between system strength and observed disturbances. Where such correlations are identified, the study will further evaluate the impact of deploying synchronous condensers (SynCons) as a mitigation strategy.
发表机构
- Dominion Energy Virginia（弗吉尼亚多米尼能源公司）
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