arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2101.04054eess.SYcs.SY
收藏

高PV渗透率下美国电网的频率响应评估

Frequency Response Assessment of U.S. Power Grids in High PV Penetration

Shutang You

摘要:

非同步发电,如光伏发电(PV)预计会破坏大容量电力系统(BPS)的频率响应在高渗透水平。虽然基本的机制已经相对较好地理解,在超高光伏穿透条件下美国互连频率响应的准确评估和有效增强仍然是一个问题。本文通过同步相量频率测量进一步验证了行业提供的详细互连模型,并使用实际预测的光伏地理分布信息为美国三大互连(包括东部互连(EI),西部电力协调委员会(WECC)和德克萨斯州电力可靠性委员会(ERCOT))开发了超高光伏渗透率场景和动态模型。模拟了高达65%的瞬时PV和15%的风穿透,并检查了由于PV穿透水平的增加而导致的每个美国互连的频率响应变化趋势。最重要的是,讨论了解决频率响应下降的实际解决方案。本文不仅对美国,而且对世界其他国家的政策制定者、公用事业运营商和学术研究人员都具有重要的指导意义。

英文摘要:

Nonsynchronous generations such as photovoltaics (PVs) are expected to undermine bulk power systems (BPSs) frequency response at high penetration levels. Though the underlying mechanism has been relatively well understood, the accurate assessment and effective enhancement of the U.S. interconnections frequency response under extra-high PV penetration conditions remains an issue. In this paper, the industry-provided full-detail interconnection models were further validated by synchrophasor frequency measurements and realistically-projected PV geographic distribution information were used to develop extra-high PV penetration scenarios and dynamic models for the three main U.S. interconnections, including Eastern Interconnection (EI), Western Electricity Coordinating Council (WECC), and Electric Reliability Council of Texas (ERCOT). Up to 65% instantaneous PV and 15% wind penetration were simulated and the frequency response change trend of each U.S. interconnection due to the increasing PV penetration level were examined. Most importantly, the practical solutions to address the declining frequency response were discussed. This paper will provide valuable guidance for policy makers, utility operators and academic researchers not only in the U.S. but also other countries in the world.

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。

↑