直驱式风电机组并网动态性能研究  

Research on grid-connected dynamic performance of the direct-drive wind turbine

作　　者：侯世英[1] 肖旭[1] 张闯[1] 薛原[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044

出　　处：《电子技术应用》2010年第6期80-83,共4页Application of Electronic Technique

基　　金：重庆大学"211工程"三期创新人才培养计划建设项目(S-09111)

摘　　要：提出发电机侧整流器采用直接电流控制方式,用以稳定直流侧电压、使发电机侧高功率因数运行,减小发电机损耗;电网侧逆变器对有功、无功功率解耦控制,使风机运行在最大功率点,保证系统以单位功率因数并网,减少并网电流谐波,提高并网电能质量。与传统的控制方式相比,该控制方式具有控制结构简单,发电机侧功率因数高,动态响应快等优点。This paper proposed generator side rectifier with direct current control mode is used to stabilize the DC side voltage, and make the generator work at high power factor rate, in order to reduce the generator loss. The grid-side inverter is used to control active and reactive decoupled ,make the wind turbine run at maximum power point, ensure the system connecting to the grid with unit power factor , reduce current harmonics in grid, and improve grid power quality. Compared with the traditional control method, this method has the advantages of simple control structure, higher power factor of generator and faster dynamic response.

关 键 词：直驱 永磁同步发电机 功率因数 全功率变流器 PSCAD 

分 类 号：TM464[电气工程—电器]