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arXiv 2203.13951eess.SYcs.SY
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基于模型预测控制的电氢耦合能量块柔性裕度研究

Research on Flexibility Margin of Electric-Hydrogen Coupling Energy Block Based on Model Predictive Control

Zijiao Han, Shun Yuan, Yannan Dong, Shaohua Ma, Yudong Bian, Xinyu Mao

摘要:

氢能在低碳能源转型中发挥着重要作用,电氢耦合将成为典型的能源场景。针对风光互补比例较高的低碳电氢耦合系统运行柔性问题,研究了基于模型预测控制(MPC)的电氢耦合能量块柔性裕度。通过分析非均质能源的功率交换特性,建立了各种非均质能源的均质化模型。通过对电力系统柔性裕度的分析,从系统运行的维度定义了柔性裕度评价指标的3个维度,建立了电氢耦合能量块调度模型。采用模型预测控制算法对电氢耦合能量块的功率平衡运行进行优化,定量分析计算能量块的柔性裕度。通过实例分析,验证了本文提出的计算方法不仅可以实现电氢耦合能量块的在线功率平衡优化,而且可以有效量化电氢耦合能量块的运行柔性裕度。

英文摘要:

Hydrogen energy plays an important role in the transformation of low-carbon energy, and electric hydrogen coupling will become a typical energy scenario. Aiming at the operation flexibility of low-carbon electricity hydrogen coupling system with high proportion of wind power and photovoltaic, this paper studies the flexibility margin of electricity hydrogen coupling energy block based on model predictive control (MPC). By analyzing the power exchange characteristics of heterogeneous energy, the homogenization models of various heterogeneous energy sources are established. According to the analysis of power system flexibility margin, three dimensions of flexibility margin evaluation indexes are defined from the dimension of system operation, and an electricity hydrogen coupling energy block scheduling model is established. The model predictive control algorithm is used to optimize the power balance operation of the electro hydrogen coupling energy block, and the flexibility margin of the energy block is quantitatively analyzed and calculated. Through the example analysis, it is verified that the calculation method proposed in this paper can not only realize the on-line power balance optimization of electric hydrogen coupling energy block, but also effectively quantify the operation flexibility margin of electric hydrogen coupling energy block.

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