风电场恒速发电机动态等值参数聚合的研究[J].doc

文档介绍：风电场恒速发电机动态等值参数聚合的研究
何桂雄,晁勤,田易之,张海静
(新疆大学电气工程学院,乌鲁木齐,830008)
摘要: 研究含有大规模风电机组的电力系统稳定性时,由于风电场发电机数量众多,为减少仿真计算量和时间,可采取动态等值的方法对风电场进行简化,因而提出了基于改进加权法的恒速风力发电机参数聚合实用化方法。在MATLAB/SIMULINK工具箱中对一实例系统进行建模和仿真,结果表明了该等值方法的正确性、精确性、简便性和有效性,为大规模并网型风电场的进一步研究提供了有利条件。
关键词: 风电场;恒速发电机;动态等值;参数聚合;加权法;
Research On Fixed- Speed Generators Wind Turbines Dynamic Aggregation In Wind Farm
He Gui-xiong, Chao Qin
(College of Electrical Engineering , Xinjiang University ,Urumqi ,830008)
Abstract:While research on the power system stability with large-scale wind power unit, it takes long time because of the wind farm with large number of generators. To reduce the simulation time ,some dynamic equivalent ways to streamline the wind farm are necessary. In this paper a improved practical approach is proposed which based on the weighted arithmetic to make the wind turbine parameters polymerized. In MATLAB / SIMULINK toolbox a case of a system is modeled and simulated, and the results show that the equivalent approach is of accuracy, precision, simplicity and effectiveness. Therefore this equivalent approach will make the further research on the power system stability with large-scale wind power unit more convenient and flexible.
Keywords : Wind Farm; Fixed- speed generator; Dynamic equivalent; Parameters aggregation; Weighted arithmetic;
0 引言
自20世纪90年代以来,人们己经对并网风机及风电场的建模问题进行了大量研究工作,并且己取得了初步成果【1-2】。但是,经过十几年的发