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基于碳排放流理论的含风电电力系统需求响应低碳经济智能调度

Low-carbon economic intelligent dispatch of demand response in power systems with wind power based on carbon emission flow theory

  • 摘要: 电力行业作为碳减排的重点行业,努力实现低碳化已经刻不容缓。在传统的含风电系统低碳调度研究中主要是将碳排放与发电侧紧密相关,采用固定碳排放系数来计算碳排放。然而,这种方法简化了碳排放行为,无法体现碳排量核算时空差异性。针对这一问题,考虑到碳排放的时空差异,本文将碳排放研究从电源侧扩展至负荷侧,并且根据碳排放流理论和需求响应理论,提出一种含风电系统两阶段低碳经济调度模型。一阶段建立含风电系统源侧经济调度模型,采用人工智能算法对模型进行求解并得到各机组调度策略;紧接着,二阶段以一阶段的调度结果为基础,通过碳排放流理论计算各节点碳势和碳排放,并以此建立需求响应低碳优化模型。最后,通过改进的IEEE33节点算例验证了本文所提方法能够指导用户改变用电行为,提高风电利用率,激发负荷侧的碳减排潜力,进一步降低系统碳排放。

     

    Abstract: As a key industry for carbon emissions reduction, the power sector must urgently strive to achieve low-carbon development. In traditional low-carbon dispatch research for wind power systems, carbon emissions are primar-ily linked to the generation side, with fixed carbon emission coefficients used for calculation. However, this ap-proach simplifies carbon emission behaviour and fails to account for the spatio-temporal variability in carbon emission quantification. To address this issue, considering the spatiotemporal variability of carbon emissions, this paper extends carbon emission research from the power generation side to the load side. Based on carbon emission flow theory and demand response theory, a two-stage low-carbon economic dispatch model for wind power systems is proposed. In the first stage, a source-side economic dispatch model for wind power systems is established, and artificial intelligence algorithms are used to solve the model and obtain dispatch strategies for each unit; In the second stage, based on the dispatch results from the first stage, carbon potential and emissions are calculated at each node using carbon emission flow theory, and a demand response low-carbon optimisation model is established. Finally, through an improved IEEE 33-node case study, the proposed method is validated to guide users in altering their electricity consumption behaviour, enhancing wind power utilisation, unlocking carbon reduction potential on the load side, and further reducing system carbon emissions

     

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