考虑需求侧与碳捕集的电力系统低碳调度优化研究

Optimization of low-carbon scheduling of power system considering demand side and carbon capture

为提升风电消纳率,实现能源电力“碳达峰、碳中和”的目标,以电力系统综合成本最低为目标,提出一种新能源电力系统低碳经济优化方法,建立源荷两侧规划模型。首先,源侧对火电机组进行低碳化改造,设溶液存储器与烟气旁路系统,使之成为储液式碳捕集机组,引入可调度资源光热电站(concentrating solar power,CSP)和储能电池与风电协调配合;然后,荷侧调用价格型与激励型需求响应资源进行削峰填谷,调整用户的用电行为与用电量。通过4种案例进行验证,结果表明:从源荷两侧对电力系统进行低碳化改造,有助于促进风电消纳,提高可再生能源的发电占比,提升系统的低碳性能,降低成本。

In order to enhance the wind power consumption rate,achieve the goal of energy and power carbon peak and carbon neutral,with the goal of the lowest comprehensive cost of the power system,a new energy power system low carbon economic optimization method is proposed to establish the source and load side of the planning model.Firstly,on the source side of thermal power units,low-carbon transformation is performed,and a solution memory and flue gas bypass system is set up to make the unit become a liquid storage carbon capture unit,and dispatchable resources of photovoltaic power plant(concentrating solar power,CSP)and storage battery is introduced to coordinated with wind power.Then,on the load side,the price and incentive-type demand response resources are used for peak shaving and valley filling,and adjusting the users’power consumption behaviors and power consumption.Finally,four cases are verified,and the results show that,the decarbonization of the power system from both the source and load sides can help promote wind power consumption,increase the share of renewable energy generation,enhance the low-carbon performance of the system,and save costs.