永磁直驱风力发电机变流系统的谐波分析  

Harmonic Analysis on Conversion System of Direct-Driven Permanent Magnet Synchronous Generator

作　　者：施刚[1] 胡东[1] 蔡旭[1] 

机构地区：[1]上海交通大学

出　　处：《电机与控制应用》2009年第5期28-32,37,共6页Electric machines & control application

摘　　要：结合中国海油总公司设计建造的国内第一座海上风电站的仿真研究项目,分析了一种考虑到现有开关器件功率水平,符合MW级直驱永磁型风力发电要求的变流电路,即多重化并联结构。将其主要电路即多重化并联升压斩波器及空间脉宽调制(SPWM)逆变器的输入输出特性与单重时进行了比较分析,并通过PSCAD建模及仿真,验证了该多重化电路结构在提高系统容量的同时,有效抑制了谐波的输出,从而提高了电能质量,满足对孤立网络的并网要求。Based on the simulation projeet of the first domestic offshore wind power station designed and con- structed by CNOOC, a conversion system using lower power grade IGBT grade device is applied in MW level PMSG wind turbine, in which multiple and parallel connection structure are adopted. The analysis on the main work prinei- ple of the multiple boost converter and SPWM inverter is presented. Simulation based on PSCAD shows that the eir- euit effeetively reduees the harmonic output and improves power quality to meet the requirement of eonneeting to weak network while enhancing the system capability.

关 键 词：直驱永磁同步发电机 海上风力发电 谐波 

分 类 号：TM315[电气工程—电机]