中国电机工程学报2017，Vol.37Issue(3)：720-726,7.DOI:10.13334/j.0258-8013.pcsee.160137
DFIG无功/电压控制影响机电 振荡模式的近似判定指标
An Index to Determine the Effect of DFIG's Reactive Power/Terminal Voltage Control on Electromechanical Oscillation Modes
摘要
Abstract
A grid-connected wind farm can adopt fixed reactive power output control or terminal voltage control. Effect of those two types of control on power system small-signal angular stability is different. In this paper, for a wind farm which is aggregated as a DFIG, an index is proposed to determine which type of control is more beneficial to system small-signal angular stability. Computation of the proposed index does not rely on the information of dynamic models of both the wind farm and reactive power/voltage controller. Hence the index can help the planning of grid connection of wind farms to choose the type of control in order to benefit system small-signal angular stability. In the paper, mathematical derivation of the proposed index is presented. An example power system is used to validate and demonstrate the application of the index in planning the grid connection of wind farms.关键词
风电场规划/双馈感应风机(DFIG)/电力系统小干扰稳定性/机电振荡模式Key words
planning grid connection of wind farm/doubly fed induction generator (DFIG)/power system small-signal angular stability/electromechanical oscillation modes分类
信息技术与安全科学引用本文复制引用
杜文娟,陈骁,王海风,宋云亭,王青,丁剑,陈得治,魏巍..DFIG无功/电压控制影响机电 振荡模式的近似判定指标[J].中国电机工程学报,2017,37(3):720-726,7.基金项目
国家自然科学基金项目(51407068) （51407068）
国家电网公司科技项目(XT71-15-059). Project Supported by National Natural Science Foundation of China (51407068) （XT71-15-059）
Technology Project of State Grid(XT71-15-059). （XT71-15-059）
