Design and Equilibrium Analysis of Inter-Provincial Medium-and-Long-term Electricity Contract Transaction Mechanism with Consideration of Dynamic Pricing and Cross-Market Coordination

In the process of constructing a unified national power market, the linkage between the inter-provincial power market and the provincial power market is of vital importance. As new energy is fully integrated into the market, the volatility of new energy output exerts a significant impact on the performance of obligations under medium and long-term contracts. However, given issues such as insufficient flexibility in contract transactions within the inter-provincial medium and long-term power market, it is necessary to provide a flexible contract adjustment mechanism to ameliorate the aforementioned situation. Therefore, this paper proposes an inter-provincial medium and long-term power contract transaction mechanism that takes dynamic pricing and cross-market coordination into account. It introduces dynamically adjusted contract transfer compensation prices and expands the scope of contract transfers, thereby enhancing the flexibility of contract transactions by leveraging the large-scale optimal resource allocation capability of the inter-provincial market. Finally, by constructing an Agent-based model, the price adjustment behavior of transferor power generation enterprises and the bid-taking behavior of transferees are simulated. The market equilibrium price is close to the price difference between the inter-provincial and provincial markets, which verifies the effectiveness of this transaction mechanism.