摘要
为进一步实现电机全速度范围内的稳定运行,获得高精度的转子位置和转速,改善低速时转速响应性能,提出一种永磁同步电机新型矢量跟踪观测器方法。研究带反馈解耦的矢量跟踪观测器,结合速度二阶预估法,通过对解耦的基波分量进行最小二乘法曲线拟合,并设计自适应因子中和速度二阶预估法与最小二乘法,解决带反馈解耦的矢量跟踪观测器低速时估算结果波动大和观测器不稳定的问题。仿真结果表明,新型矢量跟踪观测器方法具有可行性。
In order to realize stable operation of the motor within the full speed range,obtain high-precision rotor position and speed,and improve the speed response performance at low speed,a new vector tracking observer method for permanent magnet synchronous motor(PMSM)was proposed.The vector tracking observer with feedback decoupling was studied.Combined with the velocity second-order prediction method,the decoupled fundamental wave components were fitted with the least square curve,and the adaptive factor was designed to neutralize the velocity second-order prediction method and the least squares method,solving the problem of estimation results fluctuating and observer instability at low speed with feedback decoupling vector tracking observer.Simulation results showed that the proposed vector tracking observer is feasible.
作者
陆彦如
张懿
魏海峰
李垣江
刘维亭
LU Yan-ru;ZHANG Yi;WEI Hai-feng;LI Yuan-jiang;LIU Wei-ting(School of Electronics and Information,Jiangsu University of Science and Technology,Zhenjiang 212003,China;Jiangsu Shiptek Automation Technology Co.,Ltd.,Zhenjiang 212003,China)
出处
《微特电机》
2020年第9期7-12,共6页
Small & Special Electrical Machines
基金
国家自然科学基金项目(51977101)
江苏省重点研发计划产业前瞻与共性关键技术重点项目(BE2018007)
江苏省研究生科研与实践创新计划项目资助。
关键词
永磁同步电机
矢量跟踪观测器
速度二阶预估法
最小二乘法
自适应因子
permanent magnet synchronous motor
vector tracking observer
velocity second-order prediction method
least square method
adaptive factor
