计及碳交易和源-荷侧资源的综合能源系统低碳经济优化

LOW CARBON ECONOMIC OPTIMIZATION OF INTEGRATED ENERGY SYSTEM CONSIDERING CARBON TRADING AND SOURCE-LOAD SIDE RESOURCES

“双碳”目标下,综合能源系统多种能源进行融合,对推动电力行业低碳化具有重要意义。为了进一步提高IES的环保性,该文提出一种计及碳交易和源-荷侧资源的综合能源系统低碳经济优化调度模型。首先,从源侧引入光热电站充当热电联产机组;其次,根据负荷侧电能和热能的传输性质不同,分别采用价格型需求响应和考虑供热系统热惯性和模糊性的热负荷需求响应模型;然后,通过引入阶梯式碳交易机制,构建包含P2G装置的碳排放成本模型;最后,以运行成本、碳交易成本、弃风弃光惩罚成本最小为目标函数,建立综合能源系统低碳经济优化模型;通过设置4个场景进行仿真分析,综合考虑CSP电站、综合需求响应和阶梯式碳交易机制后能够使系统外购成本、碳排放量和弃风弃光率分别减少25.65%、14.36%和21.54%,验证了所提模型的有效性。

Under the double carbon target,integrated energy system(IES)integrates multiple energy sources,which is of great significance to promote low-carbon power industry.In order to further improve the environmental protection of IES,this paper proposes a low-carbon economic optimal scheduling model of integrated energy system,which takes into account the carbon trading and the source load side resources.Firstly,a concentrating solar power(CSP)power station is introduced from the source side as a cogeneration unit.Secondly,according to the different transmission properties of electric energy and thermal energy on the load side,the price type demand response model and the heat load demand response model considering the thermal inertia and fuzziness of the heating system are adopted respectively.Then,by introducing the ladder carbon trading mechanism,the carbon emission cost model including P2G device is constructed.Finally,taking the minimum operating cost,carbon transaction cost and penalty cost of wind and light abandonment as the objective function,the IES low-carbon economic optimization model is established.By setting up four scenarios for simulation analysis,after comprehensive consideration of CSP power station,comprehensive demand response and stepped carbon trading mechanism,the system outsourcing cost,carbon emissions and wind and light abandonment rate can be reduced by 25.65%,14.36%and 21.54%respectively,which verifies the effectiveness of the proposed model.