产消者参与调峰辅助服务市场的交易策略

Trading strategy for participation of prosumers in the peak shaving ancillary service market

新型电力系统背景下,大量的分布式新能源接入,具备自主决策能力的产消者群体成为参与调峰辅助服务市场的新型主体。首先,考虑产消者辖内的各类弹性资源特性,提出产消者参与调峰辅助服务市场的决策模型。其次,基于产消者的趋利特性与不同产消者对经济收益的差异化心理,引入对中标概率的敏感因子,提出产消者最优报价模型。最后,以系统总调度成本最低为目标提出市场出清模型。算例表明,所提出的模型不仅有利于缓解系统调峰压力,还具有减小线路负载压力、改善节点电压的效果。

Under the background of the new power systems with a large number of distributed new energy sources connected,prosumers with autonomous decision-making ability have become a new type of subject participating in the peak shaving and load shifting ancillary service market.Firstly,considering the characteristics of various flexible resources within the control of the prosumers,a decision-making model is proposed for the prosumers to participate in the peak shaving ancillary service market,in order to form the prosumers’power generation plan for the next day.Secondly,based on the profit-seeking characteristics of prosumers and the psychological differences in economic benefits among different prosumers,an optimal bidding model for prosumers is proposed,which takes into account the sensitivity of the prosumers’winning probability to their bidding price.Finally,a market clearing model was proposed with the goal of minimizing the overall scheduling cost of the system.The study shows that proposed model not only facilitates the alleviation of system peak shaving pressure,but also has the effect of reducing line load pressure and improving node voltage.