兆瓦级风机电动变桨距系统的设计与实现  

Design and Realization of MW Wind Turbine Electric Pitch Control System

作　　者：叶成城[1] 曹云峰[1] 蔡旭[1,2] 

机构地区：[1]上海交通大学,电子信息与电气工程学院,风力发电研究中心,上海200240 [2]上海交通大学,海洋工程国家重点实验室,上海200240

出　　处：《电力电子技术》2013年第2期61-63,共3页Power Electronics

基　　金：国家自然科学基金项目(50907040);博士点基金(20110073120029)~~

摘　　要：针对兆瓦级风电机组中普遍采用的电动变桨系统,论述了变桨系统的设计要求及机械结构,并针对目前主流的6柜系统,详细分析了该系统下伺服系统、电机、备用电源等结构间的内部结构和外部连接。在此基础上完成了伺服驱动和备用电源的详细硬件设计,提出将备用直流母线作为冗余备用供电的方案,并利用状态机完成了变桨系统软件设计。最后,搭建了实验平台,结果表明该变桨系统满足位置控制和同步性精度要求。Aiming at electric pitch system which is widely applied in MW wind turbines, this paper discusses the re- quirements of the pitch system as well as mechanical structures, and based on six-cabinet pitch system, internal struc- tures and external connections of servo driver, motor and emergency power supply are analyzed.Based on the analysis of all the components, servo system and emergency power supply are designed in detail, redundant power supply with an emergency DC bus bar is proposed,and software system with state machine is designed.Finally,a test platform of electric pitch system is built.Test results show that the system meets the demands of position control and synchronization.

关 键 词：风力发电 电动变桨 备用电源 

分 类 号：TM614[电气工程—电力系统及自动化]