面向新能源消纳的调峰辅助服务市场双边交易机制与模型

The integration of large-scale renewable energy sources requires a higher level of peak regulation capability in China Power Grid,so rapid development of peak regulation auxiliary service market can serve as an important way to accommodate renewable energy production. The current market design and trading mechanism of peak regulation auxiliary service in China are investigated,and a market trading model based on the unilateral bidding of thermal units is developed. The objective of the model is to minimize the dispatching cost of thermal peak regulation resources,which satisfies a few operating constraints related with real-time power flow balance,renewable energy curtailment,and ramping limits of thermal units. Moreover,a new market mechanism and implementation mode is designed involving the bilateral bidding of both the renewable energy and thermal,which can motivate renewable energy producers to actively participate in the peak regulation market. At the same time,a bilateral trading model that maximizes the total social welfare is proposed,and the evaluation method of interest for different market entities is demonstrated. The case study is performed on a practical system,and the trading results of peak regulation market,renewable energy accommodation situation and interest of different entities under unilateral and bilateral trading mechanism are analyzed,so that the effectiveness of the model is validated.