• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2014, Vol. 35 ›› Issue (4): 1-5.doi: 10.3969/j.issn.1000-7229.2014.04.001

• 理论研究 •    下一篇

改进直接转矩控制在海上风力机模拟中的应用

袁晓玲,黄宇宙,易文杰,刘皓明   

  1. 河海大学能源与电气学院,南京市 211100
  • 出版日期:2014-04-01
  • 作者简介:袁晓玲(1971),女,博士,副教授,研究方向为新能源发电技术,E-mail:lingx@hhu.edu.cn; 黄宇宙(1989),男,硕士,研究方向为海上风力发电技术; 易文杰(1988),男,硕士,研究方向为新能源风力机电技术; 刘皓明(1977),男,博士,副教授,研究方向为电力系统和风力发电并网技术。
  • 基金资助:

    国家高技术研究发展计划项目(863计划)(2013AA050601)。

Application of Improved Direct Torque Control in Offshore Wind Turbine Simulation

YUAN Xiaoling, HUANG Yuzhou, YI Wenjie, LIU Haoming   

  1. College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
  • Online:2014-04-01

摘要:

分析了用于海上永磁直驱同步发电机的风力机模型及其运行特性,采用基于全阶自适应定子磁链观测器和定子电阻在线辨识的改进直接转矩控制技术,实现异步电机模拟风力机输出特性。仿真结果表明,改进直接转矩控制改善了传统直接转矩控制在低速范围内具有较大电流和转矩脉动的缺点,更加适用于低转速的海上永磁直驱同步发电机。

关键词: 海上风力机, 海上风力机模拟系统, 改进直接转矩控制, 全阶自适应定子磁链观测器, 定子电阻在线辨识

Abstract:

This paper analyzed wind turbine model used in offshore direct-drive permanent magnet synchronous generator and its operation characteristics. Based on improved direct torque control technology with adaptive full-order stator flux observer and on-line identification of stator resistance, induction motor was used to simulate the output characteristic of wind turbine. Simulation results show that the improved direct torque control decreases the current and torque ripple of induction motor at low speed range in traditional direct torque control, which is more suitable for offshore direct-drive permanent magnet synchronous generator running in low-speed.

Key words: offshore wind turbine, simulation system of offshore wind turbine, improved direct torque control, adaptive full-order stator flux observer, on-line identification of stator resistance