摘要
针对国内广泛采用基于定子磁链定矢量的控制方案,提出了双馈感应发电机并网运行的改进策略,以实现规定扰动下双馈风电机组的不间断运行稳定运行能力的提高,构建了DFIG机组的数学模型,分析了并网能量转换过程及扰动下的转矩不平衡与转子过电流的改进控制方案。仿真计算结果验证了该控制方案提高并网风电机组稳定性策略的有效性。
Aiming at the widely used control scheme based on stator magnetic linkage vector in China, this paper proposes a modified strategy to improve stability operation ability of wind energy system with double fed induction generator （DFIG） under appointed disturbance and establish the mathematical model of DIFG. At the same time it analyzes the energy conversion process and improved control scheme of torque unbalance and rotor overcurrent with disturbance. Simulation results demonstrate that proposed control scheme is effective for enhancing the stability of wind power unit.
出处
《水电能源科学》
北大核心
2010年第1期141-144,共4页
Water Resources and Power
基金
国家自然科学基金资助项目(50807035)
上海市重大科技攻关计划基金资助项目(08dz1200600)
上海市教委创新计划基金资助重点项目(08ZZ92)
上海市重点学科建设基金资助项目(P1301)
关键词
DFIG
风电接入
矢量控制
桨距控制
低电压穿越
DFIG
wind power integration
vector control
pitch control
low voltage penetration
