统一结算点电价机制下金融输电权的交易模拟与结算风险评估

基于节点边际电价构建的电力市场体系通常开设金融输电权(FTR)市场,为市场成员提供规避空间价格风险的金融工具。市场建设初期,广东电力现货市场用户侧在统一结算点电价机制下进行结算,和传统节点边际电价机制下的FTR市场相比,可能导致结算环节存在资金不平衡的风险。为此,文中首先对比分析了传统节点边际电价和统一结算点电价这2种机制下FTR结算的异同,构建了FTR结算的数学模型。然后,理论推导了2种电价机制下FTR收益的差异,提出了FTR的交易模拟与同时可行性检验方法。基于IEEE 30节点系统开展FTR交易模拟,分析了2种电价机制下FTR收益差形成的原因,并对FTR市场交易收支不平衡风险进行了评估分析。最后,为统一结算点电价机制下开展FTR市场建设提出了相关建议。

Transaction Simulation and Settlement Risk Assessment of Financial Transmission Right with Electricity Pricing Mechanism of Unified Settlement Point

The electricity market system based on locational marginal price (LMP) usually establishes a financial transmission right (FTR) market, which provides market members with financial tools to avoid spatial price risks. In the early stage of market construction, the user side of the Guangdong power spot market of China conducts settlement with the electricity price mechanism of unified settlement point, which may cause the risk of unbalanced funds in the settlement process when compared with the FTR market with the traditional LMP mechanism. To this end, the similarities and differences of the FTR settlement are compared and analyzed with the two mechanisms of traditional LMP and unified settlement point electricity price, and a mathematical model of FTR settlement is constructed. Then, the difference in FTR return with the two electricity price mechanisms is theoretically derived, and the FTR transaction simulation and simultaneous feasibility test method are proposed. The FTR transaction simulation is carried out based on the IEEE 30-bus system; the reasons for the formation of the FTR return difference with the two electricity price mechanisms are analyzed; and the risk of imbalance of transaction revenue and expenditure in the FTR market is evaluated and analyzed; Finally, relevant suggestions are put forward for the construction of the FTR market with the unified settlement point electricity price mechanism.