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首页> 外文期刊>Applied Energy >The role of large-scale energy storage design and dispatch in the power grid: A study of very high grid penetration of variable renewable resources
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The role of large-scale energy storage design and dispatch in the power grid: A study of very high grid penetration of variable renewable resources

机译:大型储能设计和调度在电网中的作用:对可变可再生资源的极高电网渗透率的研究

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摘要

We present a result of hourly simulation performed using hourly load data and the corresponding simulated output of wind and solar technologies distributed throughout the state of California. We examined how we could achieve very high-energy penetration from intermittent renewable system into the electricity grid. This study shows that the maximum threshold for the storage need is significantly less than the daily average demand. In the present study, we found that the approximate network energy storage is of the order of 186 GW h/22 GW (approximately 22% of the average daily demands of California). Allowing energy dumping was shown to increase storage use, and by that way, increases grid penetration and reduces the required backup conventional capacity requirements. Using the 186 GW h/22 GW storage and at 20% total energy loss, grid penetration was increased to approximately 85% of the annual demand of the year while also reducing the conventional backup capacity requirement to 35 GW. This capacity was sufficient to supply the year round hourly demand, including 59 GW peak demand, plus a distribution loss of about 5.3%. We conclude that designing an efficient and least cost grid may require the capability to capture diverse physical and operational policy scenarios of the future grid.
机译:我们介绍了使用每小时负荷数据以及分布在整个加利福尼亚州的风能和太阳能技术的相应模拟输出执行的每小时模拟的结果。我们研究了如何从间歇性可再生系统到电网实现很高的能量渗透。这项研究表明,存储需求的最大阈值显着小于每日平均需求。在本研究中,我们发现大约的网络能量存储约为186 GW h / 22 GW(约占加州日均需求的22%)。事实证明,允许能量倾倒会增加存储使用量,并以此方式增加电网渗透并降低所需的备用常规容量需求。使用186 GW h / 22 GW的存储量和20%的总能耗,电网普及率提高到了年度年度需求的约85%,同时还将常规备用容量需求降低到35 GW。该容量足以满足全年的每小时需求,其中包括59 GW的高峰需求,再加上约5.3%的分配损失。我们得出结论,设计一个高效且成本最低的网格可能需要具有捕获未来网格的各种物理和运营策略方案的能力。

著录项

  • 来源
    《Applied Energy》 |2014年第1期|75-89|共15页
  • 作者单位

    Energy and Resources Group, University of California Berkeley, Berkeley, CA 94720-3050, United States,Renewable and Appropriate Energy Laboratory, University of California Berkeley, Berkeley, CA 94720-3050, United States,Addis Ababa Institute of Technology, P.O. Box 385, Addis Ababa, Ethiopia;

    Energy and Resources Group, University of California Berkeley, Berkeley, CA 94720-3050, United States,Renewable and Appropriate Energy Laboratory, University of California Berkeley, Berkeley, CA 94720-3050, United States,Goldman School of Public Policy, University of California Berkeley, Berkeley, CA 94720-3050, United States;

    Energy and Resources Group, University of California Berkeley, Berkeley, CA 94720-3050, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Energy storage; Intermittent renewable; Penetration; Backup capacity;

    机译:储能;间歇性可再生;渗透;备用容量;

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