基于NSGA-II的日前风电最佳接纳能力的研究

Research on NSGA-II has best acceptance ability based on wind power

当电网接纳一定规模的风电时,继续增加风电的接纳并不能使全系统的煤耗量和污染物排放量进一步下降。针对这一问题,提出了"日前风电最佳接纳能力"的概念,构建了风电增发带来最大经济效益和环保效益时的风电最佳接纳能力的优化计算模型。将风电能够为电网节约的煤耗量和减排的污染物排放量最大以及电网接纳风电能力最大作为目标,并计及风电的波动性以及系统正负旋转备用容量约束,利用快速非支配排序的多目标遗传算法进行求解。以山西某区域电网为例,验证了文章所提模型和方法的有效性和合理性,符合节能发电调度理念。

When the wind power to accept a certain scale, continue to increase the acceptance of wind power does not make the whole system of coal consumption and pollutant emissions decline further.Aiming at this problem, put forward the concept of ＂recently wind power optimal admission capacity＂,construction of wind power wind power brings additional optimization ability best to accept the largest economic benefits and environmental benefits of the calculation model.The wind power to the grid of saving coal consumption and the reduction of pollutants emissions and power to accept the largest wind power capacity maximum as the objective, and the fluctuation of wind power and the system of positive and negative spinning reserve constraints, using a fast non dominated sorting of multi objective genetic algorithm for solving.In Shanxi, a regional power grid for example, the proposed model and method is effective and reasonable, accord with the idea of energy-saving generation dispatching.