摘要
给出了一种用于大规模永磁同步发电机(permanent magnet synchronous generator,PMSG)风电场电磁暂态仿真分析的聚合模型的建模方法。建立了含PMSG的风电场简化电磁暂态仿真模型,对简化模型及其对应的全仿真模型的仿真结果进行了对比验证。分析了在不同电网故障情况下PMSG风力发电机组的响应特性。在此基础上,建立了2种风电场仿真模型:包含40台5 MW风力发电机组模型的风电场全仿真模型及其200 MW等效聚合模型。讨论了风电场聚合模型的聚合原则,给出了200 MW风电场模型的聚合过程。通过对2种模型在风电场故障过程中特性的对比研究,分析了风电场内部升压变压器和集电线路对聚合模型的影响,验证了该聚合模型的正确性和有效性。
An aggregation method to build the model of large-scale wind farm utilizing permanent magnet synchronous generators （PMSG）, which is used in the electromagnetic transient analysis of the wind farm, is presented. A simplified transient model of PMSG-based wind farm is built and the simulation results fi＇om the simplified transient model and those from corresponding detailed electromagnetic transient simulation model are compared and verified. The response characteristics of PMSG unit under various power grid faults are analyzed; on this basis two kinds of wind farm simulation models, namely a detailed model of wind farm, which consists of forty PMSGs and the capacity of each PMSG is 5MW, and an equivalent aggregation model with the capacity of 200MW for the very wind farm, are built. The aggregation principle for the aggregation model of wind farm is researched and the aggregation course for the aggregation model of 200MW wind farm is given. Through the comparative research on the behaviors of the two kinds of models during the wind farm faults, the influences of step-up transformers and the network inside the wind farm on the aggregation model are analyzed to verify the correctness and effectiveness of the proposed aggregation model.
出处
《电网技术》
EI
CSCD
北大核心
2011年第2期115-120,共6页
Power System Technology
关键词
永磁同步发电机
风电场
聚合模型
仿真
permanent magnet synchronous generators（PMSG）
wind farm
aggregation model
simulation
