基于改进潮流熵的含风电场双层协同调度  

Bilevel Cooperative Dispatch Considering Wind Power Penetration Based on Improved Power Flow Entropy

作　　者：丁楠[1] 胡吕龙[1] 

机构地区：[1]东南大学电气工程学院,江苏南京210096

出　　处：《电工电气》2014年第8期15-20,共6页Electrotechnics Electric

摘　　要：在风电渗透率较高时,风电场出力的波动在电网中形成扰动,会引发风电接入点的潮流局部涌动和全区域电网的潮流全局窜动。针对局部特性的潮流涌动和全局性的潮流窜动,以常规机组出力和储能为控制手段,提出了含风电场的双层协同调度模型。上层模型以调度周期内电网改进潮流熵的平均值最小为目标,下层模型以风电场并网点在调度周期内净注入功率方差的平均值最小为目标并采用NSGA-Ⅱ算法对所建模型交替迭代求解。含风电场的IEEE39节点系统算例验证了调度方法的可行性和有效性。When the penetration of wind power is high, the lfuctuations of wind farm output will form disturbance in the power grid, lead-ing to local surge of power lfow in the grid-connected point of wind farm and overall volatility of power lfow in the regional power grid. Aiming at local surge and overall volatility of power lfow and taking the output of conventional units and stored energy as the controlling means, this paper proposed the bilevel cooperative dispatching model considering wind farms. In the upper model, the target is to minimize the mean of improved power lfow entropy in the scheduling period, while in the lower model, the target is to minimize the mean of variance of the net injection of active power in all of the grid-connected points of wind farm in the scheduling period. The NSGA-II algorithm was ad-opted to calculate the built models alternately and iteratively. The case of IEEE39 node system veriifes the feasibility and effectiveness of the proposed dispatching method.

关 键 词：风电场 波动 潮流熵 双层规划 

分 类 号：TM614[电气工程—电力系统及自动化]