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首页> 外文期刊>Energy Conversion & Management >A new approach for near real-time micro-CHP management in the context of power system imbalances - A case study
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A new approach for near real-time micro-CHP management in the context of power system imbalances - A case study

机译：电力系统不平衡情况下近实时微型CHP管理的新方法-案例研究

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摘要

In order to ensure reliable operation of the electric grid, it is required to keep the balance between total generation and consumption of power in real-time. This task is performed by the transmission system operator. Nowadays, with the large penetration of intermittent generation on the electric grid there is a need to increase the flexibility of the system in order to ensure the balance. The present study develops a methodology to provide near real-time balancing services making use of an aggregation of micro-CHP devices. The controller of the aggregator bids electricity into the day-ahead market using the expected heat demand and spot market prices. The main focus of this work is on the near real-time optimization which is performed during the actual day. This optimization provides the opportunity to obtain extra profits by rescheduling the operation of the aggregator. The rescheduling is done in order to compensate the total system imbalance. To achieve this, every time step, the aggregator evaluates the system demand for up or down regulation and decides if it is profitable to adjust its position to provide balancing services to the power system. The methodology is applied to a case study that resembles the actual situation of the energy market and CHP installations in Belgium. The results show that using the near real-time balancing optimization a total cost decrease of 5% can be achieved depending on the season. This conclusion is valid even if there is an increase of the gas prices and if the actual governmental support on CHPs is not taken into account.
机译：为了确保电网的可靠运行，需要实时保持总发电量与功率消耗之间的平衡。该任务由传输系统操作员执行。如今，随着间歇式发电在电网上的大量普及，需要增加系统的灵活性以确保平衡。本研究开发了一种方法，以利用微型CHP设备的聚合来提供近实时的平衡服务。聚集器的控制器使用预期的热量需求和现货市场价格将电力竞标到日间市场。这项工作的主要重点是在实际一天中执行的近实时优化。这种优化为重新安排聚合器的运行提供了获得额外利润的机会。重新安排时间表是为了补偿整个系统的不平衡。为此，聚合器需要在每个时间步长上评估系统对上调或下调的需求，并决定调整其位置以向电力系统提供平衡服务是否有利可图。该方法适用于类似于比利时能源市场和CHP装置实际情况的案例研究。结果表明，根据季节的不同，使用近实时平衡优化可以使总成本降低5％。即使天然气价格上涨并且没有考虑到政府对热电联产的实际支持，这一结论也是有效的。

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  • 来源
    《Energy Conversion & Management》 |2015年第1期|270-280|共11页
  • 作者

    J. Zapata Riveros; R. Donceel; J. Van Engeland; W. Dhaeseleer;

  • 作者单位

    University of Leuven (KU Leuven) Energy Institute, TME Branch, Heverlee, Belgium,Energyville (Joint Venture of VITO NV and KU Leuven), Genk, Belgium;

    University of Leuven (KU Leuven) Energy Institute, TME Branch, Heverlee, Belgium;

    University of Leuven (KU Leuven) Energy Institute, TME Branch, Heverlee, Belgium;

    University of Leuven (KU Leuven) Energy Institute, TME Branch, Heverlee, Belgium,Energyville (Joint Venture of VITO NV and KU Leuven), Genk, Belgium;

  • 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

    Cogeneration; Virtual power plant; Real-time balancing; Linear optimization;

    机译：热电联产;虚拟发电厂;实时平衡;线性优化;

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