大规模双馈型风电场并网的系统暂态稳定仿真  

Transient Stability Simulation with Large Scale Grid-connected Wind Farms of DFIG Type

作　　者：石立宝[1] 戴世强[1] 徐政[1] Zhao Yang Dong 

机构地区：[1]清华大学深圳研究生院,电力系统国家重点实验室深圳研究室,深圳518055 [2]University of Queensland, Australia

出　　处：《电力系统及其自动化学报》2009年第4期1-7,共7页Proceedings of the CSU-EPSA

基　　金：国家重点基础研究发展规划资助项目(2004CB217900);高等学校学科创新引智计划资助(B08013);清华大学深圳研究生院种子基金(100400001)

摘　　要：探讨了大规模双馈型风电场并网后对电力系统暂态稳定性的影响。在双馈型风力发电机组动态建模中,考虑了两质量块轴系模型,并采用一种综合考虑发电机组及换流器联合动态行为的简化模型。在换流器建模方面,网络侧换流器直流母线电压假定恒定不变,转子侧换流器实现有功和无功功率的解耦控制。通过仿真分析,研究比较了电网中同一点接入双馈型风电场和同步发电机组的系统暂态稳定特性,同时考虑了同步发电机组各种动态模型及负荷模型对系统稳定性的影响。最后得出一些初步有意义的结论。The transient stability simulation analysis with high penetration of grid-connected wind farms of dou bly-fed induction generator （DFIG） type is systematically studied in this paper. In modelling of DFIG, a twomass shaft model is applied to represent the drive train, and a simplified generator model, with consideration of the combined behavior of the DFIG and its rotor converter, is adopted. As for the modelling of DFIG convert- ers, it is assumed that the dc link voltage between converters can he kept constant by the grid-side converter, and the stator active and reactive powers decoupled control are implemented by modelling rotor-side converter control strategy. The corresponding numerical simulations are carried out to explore and exploit the influences of synchronous generator and wind farm connected to the same bus respectively on system transient stability. In particular, different synchronous generator dynamic models and load models are considered in comparing the simulation results. Finally, some meaningful conclusions and comments are given in this paper.

关 键 词：双馈型感应发电机 发电机动态模型 负荷模型 暂态稳定 

分 类 号：TM614[电气工程—电力系统及自动化] TM712