考虑碳交易机制的含风电电力系统日前优化调度

Optimal Dispatching of Power System With Wind Power Considering Carbon Trading Mechanism

随着双碳目标的推进,研究碳交易机制对新能源的电力系统优化运行的影响至关重要。为此,该文在传统经济调度的基础上,将碳交易模型引入到含风电电力系统调度中,以碳交易成本与发电成本之和最小为目标,在EasySolve计算平台进行计算求解。对于碳交易成本,分别采用基准碳价和阶梯碳价模型;对于风电成本,采用风电电量发电成本,考虑到风电的不确定性加入了风电出力偏差成本。之后代入改进的IEEE 39节点系统进行验证,证明了模型的合理性,同时满足经济性和低碳性。在此基础上,研究了碳价变化对优化调度的影响,得出了选取合理的碳价可以在有效减少碳排放量的同时控制成本的结论。此外,研究了阶梯碳价奖惩系数选取对优化调度的影响,得出增大阶梯碳价的奖惩系数可以进一步收敛合理碳价的范围的结论。

With the advancement of the dual carbon goals,it is crucial to study the impact of carbon trading mechanisms on the optimal operation of power systems containing wind power.To this end,this paper introduces carbon trading costs on the basis of the traditional economic dispatching with the objective of minimizing the sum of the carbon trading costs and the generation costs,and calculate and solve it on the EasySolve computing platform.For the carbon trading cost,the baseline carbon price and the ladder carbon price models are used respectively;for the wind power cost,the wind power generation cost is used,and the wind power output deviation compensation cost is added with the consideration of the uncertainty of wind power.The model is then validated by being substituted into the improved IEEE 39 node system,which demonstrates the rationality of the model by its satisfaction to both the economic and the low carbon requirements.On this basis,by analyzing the impact of carbon price changes on the optimal dispatch,it is concluded that choosing a reasonable carbon price may effectively reduce the carbon emissions and control the costs at the same time.In addition,by studying the effects of the selection of the reward and punishment coefficients for the ladder carbon price on the optimal scheduling,a conclusion is drown that increasing the reward and punishment coefficients for the ladder carbon price may further converge the range of the reasonable carbon prices.