吴佳昊,徐立中,孙晓聪,孙珂,唐琦雯,周子青,包铭磊
WU Jiahao,XU Lizhong,SUN Xiaocong,SUN Ke,TANG Qiwen,ZHOU Ziqing,BAO Minglei

• 1:浙江大学电气工程学院
• 2:国网浙江省电力有限公司
• 3:国网浙江省电力有限公司电力科学研究院

摘要(Abstract)：

随着燃气机组装机容量的不断提高，电网和气网的耦合愈加紧密，形成了IEGS（电-气互联系统）。在新能源发电占比不断提高和负荷峰谷差日益增大的背景下，IEGS供需失衡问题愈发严重。为此，构建了考虑燃气机组灵活性的两阶段IEGS经济调度模型。首先，针对气网气压对管存的限制，提出了考虑天然气系统影响的燃气机组灵活性评估模型，建立了燃气机组调节域指标，以评估其最大可调空间。然后，将燃气机组最大可调空间纳入电力系统的燃气机组出力约束中，并基于电力系统调度模型实现总运行成本最小化的目标。最后，通过IEEE 39节点电力系统和比利时20节点天然气系统验证了所提模型的有效性。
With the continuous increase in the installed capacity of gas turbine units, the coupling between electric grids and gas networks has become increasingly tight, forming an integrated electricity-gas system(IEGS). As the proportion of renewable energy generation continues to rise and the discrepancy between peak and off-peak loads widens, the supply-demand imbalance in the IEGS becomes more severe. Therefore, the economic dispatch model of a two-stage IEGS considering the flexibility of gas turbine units is constructed. Firstly, given the constraints of gas network pressure on line pack, this paper proposes a flexibility evaluation model for gas turbine units that takes into consideration the impact of the natural gas system. It also establishes a modulation range index for the gas turbine units to assess their maximum adjustability. Then, the maximum adjustability of the gas turbine units is incorporated into the output constraints of the gas turbines in the power system. Based on the power system dispatch model, the paper aims to minimize the total operational cost. Lastly, the effectiveness of the proposed model is verified using the IEEE 39-node power system and Belgium 20-node natural gas system.

关键词(KeyWords)： 电-气互联系统;燃气机组;灵活性;管存;调度
integrated electricity-gas system;gas turbine unit;flexibility;line pack;dispatch

Abstract:

Keywords:

基金项目(Foundation): 国网浙江省电力有限公司科技项目（5211DS230006）;; 中国博士后科学基金资助项目（2022M712725）

作者(Author): 吴佳昊,徐立中,孙晓聪,孙珂,唐琦雯,周子青,包铭磊
WU Jiahao,XU Lizhong,SUN Xiaocong,SUN Ke,TANG Qiwen,ZHOU Ziqing,BAO Minglei

DOI: 10.19585/j.zjdl.202410001

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