考虑绿电直连的电解铝负荷参与电网需求响应报量策略
Quantity-Only Bidding Strategy for Electrolytic Aluminum Loads Participating in Grid Demand Response Considering Direct Green Electricity Supply
廖思阳 1卞士琪 1徐箭 1柯德平 1孙元章1
作者信息
摘要
绿电直连模式下的大规模电解铝负荷参与电网需求响应，是促进新能源消纳与提升系统灵活性的重要途径。针对直连光伏波动与电解工艺安全约束带来的控制难题，提出一种考虑绿电直连的电解铝负荷参与需求响应日前报量策略。首先，结合等效热阻电路推导电解槽的电热能量转换过程，建立满足生产工艺安全温度约束的负荷功率调节边界模型。其次，计及光伏出力与市场出清的双重不确定性，综合考虑功率调节引起的设备寿命损耗与阳极效应等隐性成本，建立基于条件风险价值（CVaR）的日前最优报量模型，以制定兼顾收益与风险的需求响应基准计划。最后，基于实际运行数据进行仿真，结果表明：建立的电热耦合边界模型有效保障了功率调节的工艺安全性；计及隐性成本的CVaR报量策略有效降低了参与需求响应的违约风险，显著增强了电解铝负荷参与新型电力系统网荷互动的适应性。
Abstract
The participation of large-scale electrolytic aluminum loads (EALs) under direct green electricity supply in grid demand response provides an effective means of facilitating renewable energy integration and enhancing power system flexibility. To address the control challenges arising from photovoltaic (PV) power fluctuations and production safety constraints of the aluminum electrolysis process, this paper proposes a day-ahead quantity bidding strategy for EAL participation in demand response considering direct green electricity supply. First, an electrothermal energy conversion model of the electrolytic cell is derived based on an equivalent thermal resistance circuit, and a load power regulation boundary model is established to satisfy the temperature constraints required for safe production. Second, considering the dual uncertainties of PV generation and market clearing, as well as implicit costs associated with power regulation, including equipment lifetime degradation and anode effects, a day-ahead optimal quantity bidding model based on conditional value-at-risk (CVaR) is developed to determine a demand response baseline plan that balances economic returns and risk. Finally, simulations are conducted using actual operational data. The results demonstrate that the proposed electrothermal coupled boundary model can effectively ensure production safety during power regulation. Moreover, the CVaR-based bidding strategy incorporating implicit costs effectively reduces the default risk associated with demand response participation and significantly improves the adaptability of EALs to grid-load interaction in modern power systems.关键词
电解铝负荷/电热耦合/邀约型需求响应/报量不报价Key words
electrolytic aluminum load/electrothermal coupling/invitation-based demand response/quantity-only bidding引用本文复制引用
廖思阳,卞士琪,徐箭,柯德平,孙元章.考虑绿电直连的电解铝负荷参与电网需求响应报量策略[EB/OL].(2026-09-24)[2026-09-29].https://chinaxiv.org/abs/202609.00357.学科分类
电工技术概论
