| Based on the current situation of China’s multi-level market system construction and the three-level dispatch business structure of the state, network and province, the functional positioning of the regional inter-provincial market and inter-regional inter-provincial market in the national unified electricity market at the current stage is clarified. In order to solve the articulation problem of markets with different ranges and cycles, the construction of D-2 day electric energy market of Yangtze River Delta is proposed, the power and energy of the entire network power is balanced through the D-2 day electric energy market, ensuring the execution of the out-of-region power delivery plan and realizing the smooth transition of the market from medium-and long-term to day ahead. It is introduced that the customers participate in the regional market by quotation. The key mechanisms such as market convergence, market pricing and deviation handling are designed. Considering that the East China Power Grid is an AC grid with complex coupling relationships, an entire network clearing model is constructed. The example results show that the D-2 day electric energy market is conducive to the optimal allocation of entire network resources, ensure entire network power security and solve the market power problem at the generation side, which proves the effectiveness of the market mechanism design. |
