考虑低电压穿越的双馈风力发电机组电磁暂态建模方法
首发时间:2021-05-18
摘要:针对目前现有的双馈风电机组低电压穿越建模仅在特定时间尺度下进行的问题,为提高电磁暂态模型的精度,提出了低电压穿越下包括故障前及功率恢复完成后的稳态阶段、故障阶段和功率恢复阶段的双馈风力发电机电磁暂态建模方法,在每个阶段解析出有功功率和无功功率穿越时参考电流和电压实时更新的表达式,据此对转子侧变换器的控制器进行建模。在半实物仿真平台上进行双馈风电系统低电压穿越测试并得测试曲线,结合应用本文提出的建模方法所得结果,通过仿真验证方法的有效性。
For information in English, please click here
Electromagnetic Transient Modeling Method for Doubly-fed Wind Turbine Considering Low Voltage Ride-Through
Abstract:According to the problem that the current LVRT modeling of DFIG is only performed on a specific time scale, the electromagnetic transient(EMT) modeling method of DFIG under LVRT is proposed, including the steady phase before or after power grid fault, fault phase and power recovery phase, to improve the accuracy of the EMT model. In each phase, the real-time updated expressions of the reference current and voltage during the active power and reactive power ride-through are analyzed, and the controller of rotor side converter is modeled accordingly. The LVRT test of the DFIG wind power system is performed on hardware-in-the-loop simulation platform and the test curves is obtained, combined with the results of the modeling method proposed in this paper, the effectiveness of the method is verified by simulation.
Keywords: power systems doubly-fed wind turbine low voltage ride-through modeling
基金:
引用

No.****
同行评议
共计0人参与
勘误表
考虑低电压穿越的双馈风力发电机组电磁暂态建模方法
评论
全部评论