针对区域电网中储能电站容量优化配置问题,为提升系统规划-运行经济性,提出一种考虑风电不确定性与电池损耗的储能电站鲁棒规划方法。首先,构建了适用于区域电网储能电站规划的电池寿命损耗模型,用于量化评估电池损耗。其次,考虑储能装...针对区域电网中储能电站容量优化配置问题,为提升系统规划-运行经济性,提出一种考虑风电不确定性与电池损耗的储能电站鲁棒规划方法。首先,构建了适用于区域电网储能电站规划的电池寿命损耗模型,用于量化评估电池损耗。其次,考虑储能装置的寿命模型和系统运行等约束,以储能电站固定成本和发电机组运行成本最低为目标函数,建立储能电站规划的鲁棒优化模型,并采用列和约束生成C&CG(column and constraint generation)算法进行求解。最后,通过仿真算例验证了所提模型和算法的有效性。展开更多
The decrease of wind velocity (wake losses) in downstream area of wind turbine is generally quantified using wake models. The overall estimated power of wind farm varies according to reliability of wake model used, ...The decrease of wind velocity (wake losses) in downstream area of wind turbine is generally quantified using wake models. The overall estimated power of wind farm varies according to reliability of wake model used, however it's unclear which model is most appropriate and able to give a high performance in predicting wind velocity deficit. In this subject, a qualification of three analytical wake models (Jensen, lshihara and Frandsen) based on three principal criteria is presented in this paper: (i) the parsimony which characterizes the inverse of model complexity, (ii) the accuracy of estimation in which wake model is compared with the experimental data and (iii) imprecision that is related to assumptions and uncertainty on the value of variables considered in each model. This qualitative analysis shows the inability of wake models to predict wind velocity deficit due to the big uncertainty of variables considered and it sensitivity to wind farm characteristic.展开更多
文摘针对区域电网中储能电站容量优化配置问题,为提升系统规划-运行经济性,提出一种考虑风电不确定性与电池损耗的储能电站鲁棒规划方法。首先,构建了适用于区域电网储能电站规划的电池寿命损耗模型,用于量化评估电池损耗。其次,考虑储能装置的寿命模型和系统运行等约束,以储能电站固定成本和发电机组运行成本最低为目标函数,建立储能电站规划的鲁棒优化模型,并采用列和约束生成C&CG(column and constraint generation)算法进行求解。最后,通过仿真算例验证了所提模型和算法的有效性。
文摘The decrease of wind velocity (wake losses) in downstream area of wind turbine is generally quantified using wake models. The overall estimated power of wind farm varies according to reliability of wake model used, however it's unclear which model is most appropriate and able to give a high performance in predicting wind velocity deficit. In this subject, a qualification of three analytical wake models (Jensen, lshihara and Frandsen) based on three principal criteria is presented in this paper: (i) the parsimony which characterizes the inverse of model complexity, (ii) the accuracy of estimation in which wake model is compared with the experimental data and (iii) imprecision that is related to assumptions and uncertainty on the value of variables considered in each model. This qualitative analysis shows the inability of wake models to predict wind velocity deficit due to the big uncertainty of variables considered and it sensitivity to wind farm characteristic.