可再生能源2013，Vol.31Issue(7)：20-24,5.
基于二极管箝位三电平变流器2MW直驱式风电系统研究
Study of 2 MW direct-driven wind power system based on diode-clamped three-level converter
摘要
Abstract
The high-voltage high-power three-level converter technology is applied in the directdriven wind power generation system with midpoint back to back diode clamped three-level structure in inverter circuit.The space vector pulse width modulation technology is used in three-level inverter; machine side converter employs the double-loop control programs with maximum torque current ratio to achieve maximum power point tracking and smooth running of the generator; grid side converter adopts the vector control of directional grid voltage to achieve active and reactive power decoupling control for constant DC voltage,and converter operates at unity power factor condition.The results show that,based on diode-clamped three-level converter,2MW direct driven wind power system not only achieves maximum wind power tracking and dynamic control of active and reactive power,but also ensures highquality power feed to the grid.关键词
风力发电/直驱式永磁同步发电机/NPC/三电平变换器/最大转矩电流比控制Key words
wind power generation/direct-driven permanent magnet synchronous generator/NPC/three-level converter/maximum ratio of torque to current control分类
信息技术与安全科学引用本文复制引用
牛海伟,胡宏彬,刘敏,王江力,任永峰..基于二极管箝位三电平变流器2MW直驱式风电系统研究[J].可再生能源,2013,31(7):20-24,5.基金项目
教育部新世纪优秀人才支持计划项目(NCET-11-1018) （NCET-11-1018）
教育部科学技术研究重点项目(210037) （210037）
内蒙古自然科学博士基金(2011BS0903) （2011BS0903）
内蒙古人才开发基金. （）
