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Bi-Level Strategic Bidding Model of Gas-fired Units in Interdependent Electricity and Natural Gas Markets
IEEE Transactions on Sustainable Energy ( IF 8.8 ) Pub Date : 2021-09-08 , DOI: 10.1109/tste.2021.3110864
Tao Jiang , Chenguang Yuan , Linquan Bai , Badrul Hasan Chowdhury , Rufeng Zhang , Xue Li

The increasing penetration of renewables tends to demand more flexibility from gas-fired units to maintain system reliability, which significantly strengthens the interdependency between the electricity and the natural gas markets. To this end, intra-day gas market trading may be necessary, and a completely deregulated natural gas market may emerge in the future. As the interdependency between the electricity and the natural gas markets keeps growing, this paper proposes a bi-level strategic bidding model to study the market behaviors of the gas-fired unit, which simultaneously acts as a strategic power producer in the electricity market and a strategic gas buyer in the natural gas market. The upper-level problem maximizes the profit of the gas-fired unit, and the two lower-level problems respectively model the market-clearings of the electricity and the natural gas markets. The upper and lower levels interact through locational marginal prices of electricity and natural gas. The proposed bi-level optimization model is converted to a mathematical problem with equilibrium constraint (MPEC). Then it is transformed into a mixed-integer second-order-cone programming (MISOCP) for efficient calculation. Numerical results demonstrate the proposed methodology is capable of mimicking the market-clearing process and strategic behaviors of the gas-fired unit in the interdependent energy markets effectively.

中文翻译:

相互依存的电力和天然气市场中燃气机组的双层战略招标模型

可再生能源的日益普及往往要求燃气机组具有更大的灵活性以保持系统可靠性,这显着加强了电力和天然气市场之间的相互依存关系。为此,日内天然气市场交易可能是必要的,未来可能会出现一个完全放松管制的天然气市场。随着电力市场与天然气市场的相互依存度不断提高,本文提出了一种双层战略招标模型来研究燃气机组的市场行为,燃气机组同时作为电力市场的战略发电商和天然气市场的战略天然气买家。上层问题最大化燃气机组的利润,两个较低级别的问题分别模拟电力和天然气市场的市场出清。上层和下层通过电力和天然气的位置边际价格相互作用。所提出的双层优化模型被转换为具有均衡约束(MPEC)的数学问题。然后将其转化为混合整数二阶锥规划(MISOCP)以进行高效计算。数值结果表明,所提出的方法能够有效地模仿相互依赖的能源市场中燃气机组的市场出清过程和战略行为。所提出的双层优化模型被转换为具有均衡约束(MPEC)的数学问题。然后将其转化为混合整数二阶锥规划(MISOCP)以进行高效计算。数值结果表明,所提出的方法能够有效地模仿相互依赖的能源市场中燃气机组的市场出清过程和战略行为。所提出的双层优化模型被转换为具有均衡约束(MPEC)的数学问题。然后将其转化为混合整数二阶锥规划(MISOCP)以进行高效计算。数值结果表明,所提出的方法能够有效地模仿相互依赖的能源市场中燃气机组的市场出清过程和战略行为。
更新日期:2021-09-08
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