基于反馈线性化技术的直驱永磁同步风电机组低电压穿越研究  

A low voltage ride through scheme of PMSG wind power systems based on feedback linearization technology

作　　者：魏杰[1] 邱晓燕[1] 陈光堂[1] 崔伟[1] 张冰冰[1] 庄哲[1] 郑乔[1] 

机构地区：[1]四川大学电气信息学院智能电网四川省重点实验室,四川成都610065

出　　处：《可再生能源》2013年第4期41-44,共4页Renewable Energy Resources

基　　金：四川省科技支撑项目(2011GZ0036)

摘　　要：通过对直驱永磁同步风电系统的研究,提出了一种基于反馈线性化的低电压穿越控制策略。直流母线电压由发电机侧整流器来维持调节,考虑到直流母线电压和发电机转子转速的非线性关系,直流母线电压的控制采用了反馈线性化技术。网侧逆变器根据最大风能跟踪原则来控制网侧有功功率,并加入了转子速度参考值的判定环节。运用PSCAD仿真平台建立了一个2 MW的直驱永磁同步风电系统,验证了其正确性和有效性。This paper proposes aAfter analyzing the wind turbine with a direct-driven PMSG, a low voltage ride through scheme of PMSG wind power systems based on feedback linearization through anis proposedalyzing the wind turbine with a direct-driven PMSG. The DC-Linklink volt- age is maintained and regulated by generator-side converter. Considering the nonlinear relationship between the DC-Linklink voltage and the generator rotor speed, the controller of DC-Liuklink voltage uses a feedback linearization technology. The grid-side converter which controls the grid- side active power according to the maximum power point tracking adds a judgment link for the generator speed reference.. The model of 2 MW PMSG wind power system was simulated by using PSCAD. The simulation results has have verified the validity of the proposed control scheme.

关 键 词：直流母线电压控制 低电压穿越 反馈线性化 PSCAD 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程]