电网技术Issue(11)：3060-3066,7.
笼型异步风电机组串联耦合补偿低电压穿越研究
Low Voltage Ride-Through of Squirrel Cage Induction Generator With Series Coupled Compensation
摘要
Abstract
With ever-increasing of installed capacity of wind power generators in China, it becomes a necessary condition for wind farms to be grid-connected to exist the ability of low-voltage ride-through (LVRT). In view of the fact that traditional squirrel cage induction generator (SCIG) does not exist the LVRT ability, a new LVRT scheme using series coupled compensation (SCC) is proposed: the SCC is connected in series to the position between the stator of SCIG and the point of common coupling (PCC) via a transformer and is switched on/off in coordinating with bi-directional thyristor. By means of PSCAD/EMTDC a simulation model of SCC system for SCIG with capacity of 750 kW is established and simulation results show that in spite of various voltage faults, the SCC can improve the LVRT ability of SCIG unit effectively and suppress oscillation of electromagnetic torque by compensating the voltage drop at PCC.关键词
笼型异步发电机/低电压穿越/串联补偿/暂态稳定性Key words
squirrel cage induction generator(SCIG)/low voltage ride through (LVRT)/series compensation/transient stability分类
信息技术与安全科学引用本文复制引用
熊良根,张建忠,程明,任禹丞..笼型异步风电机组串联耦合补偿低电压穿越研究[J].电网技术,2013,(11):3060-3066,7.基金项目
国家重点基础研究发展计划项目(973项目)(2013cb035603)；国家自然科学基金项目(50977011，51137011)。The National Basic Research Program of China (973 Program)(2013cb035603) （973项目）
Project Supported by National Natural Science Foundation of China (50977011,51137011) （50977011,51137011）
