摘要
并网发电是大功率风力发电机组高效、大规模利用风能最经济的方式,已成为当今世界风能利用的主要形式。为促进我国的风电事业,概述了并网型风力发电系统的基本工作原理、工作方式和风力发电机的空气动力学特性以及并网型风力发电系统中5种典型的电路拓扑结构及其工作原理、并网技术和控制方法,还比较了不同拓扑结构下风力发电系统的性能和效率,给出了各自的典型应用。最后指出了各种方法的优缺点以及今后的发展方向。结果表明,随着大容量电力电子器件的发展和现代控制技术的引入,并网型风电系统中直驱式永磁同步发电机拓扑结构将会得到更多的应用和发展。并网型大功率风电机组控制系统中,风机模拟系统设计、发电机控制技术、并网技术、桨矩角控制技术和系统监控等关键技术的解决将有助于我国风电产业的国产化和大容量风电系统自主知识产权的建立。
This paper summarizes the basic working principle and working mode of the wind power generation system as well as the aerodynamic characteristic of aero-generator. Based on the research in this field, it gives detailed description of wind power generation system in the following aspects： the five typical topological circuits, its basic wor.king principles, the shunt-connected techniques and the critical control methods. This paper also compares the capability and efficiency of the wind power generation system with different topological circuits, demonstrates representative applications of them. Finally, this paper clearly presents the advantages and disadvantages of the different topological circuits, Since the wind power generation system is one of the most low-pollution and energy-efficient system to date, it must has the bright future in developing trend. This paper is expected to contribute in promoting the study of the wind power generation system.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2008年第1期142-147,共6页
High Voltage Engineering
基金
国家自然科学基金重点项目(60534040)~~
关键词
风力发电
电机
电路拓扑结构
并网控制
水平轴式风机
变速恒频
wind generation
motor
topological circuits
shunt-connected control
aero-generator with horizontal axis
variable speed and constant frequency
