碳足迹强制约束下的混合储能微电网分布式协调控制算法

Distributed Coordinated Control Algorithm for Hybrid Energy Storage Microgrid Constrained by Carbon Footprint

为保证混合储能微电网在碳足迹强制约束下,实现碳排放量最小、混合储能系统功率优化分配,提出碳足迹强制约束下的混合储能微电网分布式协调控制算法。基于混合能源的全生命碳足迹,构建碳排放量最小化、混合能源最佳定容的混合储能微电网分布式协调控制目标函数,并确定约束条件;在此基础上,结合混合储能微电网的不确定特性改写目标函数,形成min-max两阶段分布鲁棒优化协调控制模型;采用列与约束生成算法求解该模型,获取目标函数的最优解。测试结果显示:该方法应用后,碳足迹系数的结果均低于9.0,超级电容的功率分配结果为4.8 MW左右,网损电量和最大电压偏差的最高值分别0.42 MW⋅h和0.067 V,间接和直接两种碳排放量显著下降,有效提升了混合储能系统的荷电状态。

In order to ensure the minimum carbon emission and optimal power distribution of the hybrid energy storage microgrid under the constraint of carbon footprint,a distributed coordinated control algorithm of the hybrid energy storage microgrid under the constraint of carbon footprint was proposed.Based on the whole life carbon footprint of mixed energy,the distributed coordinated control objective function of hybrid energy storage microgrid with minimum carbon emissions and optimal constant volume of mixed energy was constructed,and the constraint conditions were determined.On this basis,combining with the uncertain characteristics of hybrid energy storage microgrid,the objective function was rewritten to form a two-stage brodding optimization and coordination control model.Adopting column and constraint generation algorithm to solve the model,obtain the optimal solution of the objective function.The test results show that,after the application of this method,the carbon footprint coefficient is lower than 9.0,the power distribution result of ultracapacitor is about 4.8 MW,the maximum value of network loss power and maximum voltage deviation is 0.42 MW⋅h and 0.067 V respectively.The indirect and direct carbon emissions are significantly reduced,and the charged state of the hybrid energy storage system is effectively improved.