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A Multi-period Coordinated Balancing Mechanism Considering Medium- and Long-term Electricity Transactions

Based on the characteristics of existing medium-and long-term electricity transactions in China, a coordinated balancing mechanism is proposed. Under the designed balancing mechanism and considering the forecast error characteristics of renewable energy, a multi-time scale rolling dispatch model is established. It focuses on the trading products and balance strategies under various time scales in different markets, clarifies the connection between timescales. The proposed balancing mechanism can effectively promote the integration of renewable energy, reduce the overall operation cost of the system. Finally, the balancing mechanism of the method and the model is verified through the PJM 5-bus system simulation.