摘要
针对永磁同步电机高速运行的无传感器控制,结合滑模观测器对电机参数变化和测量具有很强鲁棒性且响应迅速的优点,引入连续的饱和函数,设计了防高频抖动的新型滑模观测器,并详细分析了基于转子磁场定向的矢量控制策略,建立了基于新型滑模观测器的永磁直驱风力发电机的无速度传感器矢量控制模型,并进行实验验证。实验结果表明,该控制系统不仅能准确估算风机转子的角度和位置信息,实现高性能的无传感器矢量控制,而且能够实现有功、无功功率的独立调节,具有良好的动静态性能。
Combined with the advantage that sliding mode observer had a strong robustness to motor parameter variations and measurement, a new type of sliding mode observer was designed for sensorless control for high-speed operation of permanent magnet synchronous motor. To avoid the high-frequency jitter, continuous saturation function was introduced. And a strategy which based on rotor field oriented vector control was analyzed in detail, a new sliding mode observer-based sensorless vector control model for permanent magnet direct-drive wind generator was established. Finally, it conducted the experimental verification. The experimental results show that the control system is not only able to accurately estimate the rotor angle and position information of wind generator to achieve high performance sensorless vector control, but also capable of achieving active and reactive power adjusted independently, acquiring a good dynamic and static performance.
出处
《电源技术》
CAS
CSCD
北大核心
2016年第3期672-674,679,共4页
Chinese Journal of Power Sources
基金
国家自然科学基金(50907020)
教育部高等学校博士学科点专项科研基金(200805321038)
湖南省博士创新基金(CX2010B149)
关键词
滑模观测器
饱和函数
永磁直驱风力发电机
矢量控制
sliding mode observer
saturation function
permanent magnet direct-drive wind generator
vector control
