摘要
比较了风电场常见的3种并网方式,分别讨论了适用于风电接入的模块化多电平柔性直流输电系统启动控制策略及双馈感应发电机(DFIG)自身的启动控制,设计了稳态运行时的模块化多电平柔性直流控制器,以可靠接纳风电并网。基于PSCAD/EMTDC仿真平台分析了所提出的控制理论,验证了在稳定运行及风速改变等不同工况下,模块化多电平柔性直流输电系统均可实现风电场启动及可靠高效并网。
Three conventional grid integration methods for DFIG-based wind farms are compared.Start-up control strategies for both modular multilevel voltage source converter based high voltage direct current（VSC-HVDC） system and doubly-fed induction generator are discussed.The modular multilevel VSC-HVDC controller is designed for the reliable integration of wind farms.The proposed control strategies are simulated on the PSCAD/EMTDC platform.And it reveals that the modular multilevel VSC-HVDC system can reliably and effectively realize the start-up and integration of wind farms under different conditions,such as the stable operation condition and variable wind speed condition.
出处
《电力系统自动化》
EI
CSCD
北大核心
2013年第15期20-26,共7页
Automation of Electric Power Systems
基金
国家自然科学基金资助项目(51261130471)~~
关键词
柔性直流输电
并网方式
风电接入
双馈感应发电机
模块化多电平换流器
启动控制
voltage source converter based high voltage direct current（VSC-HVDC）
integration method
wind farm integration
doubly-fed induction generator
modular multilevel converter
start-up control
