计及消纳惩罚的日前市场优化出清方法

Day-ahead Optimized Market Clearing Method Considering Renewable Energy Absorption

随着电力市场建设不断完善,电力市场交易电量占比不断攀升,电网逐渐由常规机组主导的计划方式向高比例新能源的市场方式转变,使得新型电力系统运行及规划面临严峻考验。为此,在电力市场情景下针对新能源高渗透率的消纳问题进行探讨,提出一种促进风光高效消纳的解决方案。首先提出了对于风光等新能源出力的模拟方式,并利用场景削减技术获得典型出力;进而从日前市场的角度出发,提出了计及系统网络约束的实时平衡市场出清模型并将全系统弃风、失负荷惩罚费用加入模型;最后,针对不同弃风、失负荷情景进行量化对比分析,提出了一种高比例可再生能源接入电力系统后的可行消纳模式。该模式有望从电力市场设计角度助力“双碳”目标的实现。

With the construction of the power market,the proportion of electricity transaction through the market is growing significantly.Meanwhile,the grid is gradually changing from the planning mode dominated by conventional units to the market mode with high proportion of renewable energy.Hence,the power system operation is facing serious challenges due to the marketization of the main behavior of power generation as well as the tendency of the system to be extremely complicated.Under the background of high penetration rate of new energy in power system,this paper discusses the absorption problem of renewable energy in the electric power market,and tries to put forward a solution to promote the efficient absorption of wind and solar power.Firstly,on the basis of the simulation of high-penetration-rate new energy power system,the simulation of new energy and acquire the typical output relying on the scene reduction algorithm are carried out.Later,a day-ahead clearing model considering real-time market and the network constraints is proposed,at the same time,the penalty of wind abandoning and load loss are included.Finally,quantitative comparative analysis are made for different scenarios of wind abandoning and load loss,which reveals a feasible consumption model after high proportion of renewable energy is connected to the power system.Such framework will help realize the double carbon target from the perspective of electricity market.