直驱式永磁同步风力发电机的改进Backstepping控制策略  

Improved backstepping control strategy for direct-drive permanent magnet synchronous wind generator

作　　者：王玉婷[1] 王国栋[2] 

机构地区：[1]四川省电力公司技术技能培训中心,四川成都610072 [2]输配电装备及系统安全与新技术国家重点实验室重庆大学,重庆400044

出　　处：《可再生能源》2013年第5期34-37,41,共5页Renewable Energy Resources

摘　　要：文章推导出网侧变换器在系统参数以及外界干扰影响下的动态模型,提出了改进的Backstepping控制策略,通过引入集总不确定量以及Sgn函数,提高了网侧变换器应对外界干扰的控制效果。此外,依据Lyapunov稳定性判定证明了所提控制策略的稳定性。仿真研究结果表明,文章所提出的控制策略有效改善了网侧变换器对直流母线电压的控制效果以及输入电网的电能质量。According to the power characteristics, a modified dynamic model of grid side converter, in which system parameters variation and outside disturbances were considered, was studied. With introduction of lumped uncertainty and Sgn function, the proposed control strategy achieved satisfied efforts of outside disturbances control. Moreover, the Lyapunov stability of the proposed control scheme has been verified. The simulation results demonstrate that the proposed control strategy can effectively control the DC voltage and the gird power quality.

关 键 词：风力发电 直驱式永磁同步发电机 BACKSTEPPING 电能质量 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程]