发电技术

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考虑数据中心和储能接入的主动配电网经济调度研究

马浩然1,袁至1,王维庆1,李骥2   

  1. 1.可再生能源发电与并网控制教育部工程研究中心(新疆大学),新疆维吾尔自治区 乌鲁木齐市830017;2.国网新疆电力有限公司电力科学研究院,新疆维吾尔自治区 乌鲁木齐市 830011

Research on Economic Scheduling of Active Distribution Networks with Inclusion of Data Center and Energy Storage

MA Haoran1, YUAN Zhi1, WANG Weiqing1, LI Ji2   

  1. 1.Engineering Research Center of Ministry of Education for Renewable Energy Power Generation and Grid Connection Control, Xinjiang University, Urumqi 830017, Xinjiang Uygur Autonomous Region, China; 2.Electric Power Research Institute of State Grid Xinjiang Electric Power Co., Ltd., Urumqi 830011, Xinjiang Uygur Autonomous Region, China

摘要: 【目的】为了提高电网新能源消纳能力、降低发电企业运营成本,解决大规模可再生能源馈入配电网时网损增大和新能源消纳率降低等问题,提出一种考虑数据中心(data center,DC)和储能协同调度的主动式配电网经济调度策略。【方法】通过利用DC的时空可调特性,以及储能设备能够缓解电网发用电两侧矛盾的作用,充分协同调度数据中心和储能来达到削峰填谷。通过在麻雀搜索算法中引入Tent混沌初始化和多种群竞争等机制来提高算法的搜索性能。此外,考虑到需求响应机制分时电价的影响,在储能成本、运行成本等多个条件约束下利用改进型麻雀搜索算法对模型进行优化调度,最大程度实现灵活性负荷与新能源的最优化匹配和配电网总运行成本最优化。【结果】以改进IEEE 30和IEEE 33节点系统为算例进行仿真和对比,验证结果表明,该模型能够有效降低配电网综合运行成本,提高新能源消纳率。【结论】该配电网经济调度方法有效提升了调度的经济性和增加了新能源的吸纳能力。

关键词: 储能设备, 数据中心(DC), 经济调度, 改进麻雀搜索算法, 需求响应, 新能源消纳

Abstract: [Objectives] To improve the new energy consumption capacity of the power grid, reduce operational costs for power generation companies, and address issues such as increased network losses and reduced new energy consumption when large-scale renewable energy is integrated into the distribution networks, an economic scheduling strategy for active distribution networks with the inclusion of the coordinated scheduling of data center (DC) and energy storage is proposed.[Methods] By utilizing the spatiotemporal adjustability of DC and the role of energy storage devices in alleviating the imbalance between grid supply and demand, the coordinated scheduling of DC and energy storage is fully leveraged to achieve peak shaving and valley filling. The search performance of the sparrow search algorithm is improved by incorporating Tent Chaos initialization and multi-population competition mechanisms into the algorithm. In addition, considering the impact of time-of-use pricing on the demand response mechanism, the model is optimized using an improved sparrow search algorithm under constraints such as energy storage costs and operational costs, aiming to achieve the optimal matching of flexible loads and new energy and minimize the total operational costs of the distribution networks.[Results] Simulations and comparisons are conducted using the improved IEEE 30 and IEEE 33 node systems as examples. The verification results show that the proposed model can effectively reduce the overall operational costs of the distribution networks and improve the new energy consumption rate.[Conclusions] The economic scheduling method for the distribution networks effectively improves the economic efficiency of scheduling and increases the consumption capacity of new energy.

Key words: energy storage devices, data center (DC), economic scheduling, improved sparrow search algorithm, demand response, new energy consumption