摘要
针对永磁同步电机无速度传感器控制系统进行设计,选择定子电流为状态变量,利用波波夫超稳定性(Popov)理论确定转子转速、转子电阻和控制绕组电阻的自适应律,然后将由观测器得到的定子电流直接用于永磁同步电机控制中。根据模型参考自适应(MRAS)的稳定性原理,得到估计速度的自适应规律,而超稳定性保证了永磁同步电机控制系统和速度的渐进收敛性。理论分析表明,所探究的方法保证了速度辨识算法的全局渐进稳定性,经过MATLAB/Simulink环境下的仿真,证明了这种方法的有效性。
While working out permasyn motor＇s sensorless control system,the stator current was taken as the state variable and Popov hyperstability theory was employed to determine rotor speed,resistance and adaptive law against winding resistance,and then the stator current received by the observer was applied in permasyn motor＇s control system.According to the model reference adaptive stability（MRAS）,the adaptive law of estimated speed could be reached,and the convergence of permasyn motor control system and speed were ensured with Popov hyperstability theory.The simulation results in MATLAB/Simulink environment prove the effectiveness of this theoretical research in ensuring the global asymptotic stability and robust performance of the system.
出处
《化工自动化及仪表》
CAS
北大核心
2010年第4期89-92,共4页
Control and Instruments in Chemical Industry
基金
广西区科技厅项目(桂科攻0330005-12)
广西研究生教育创新计划项目(2009105960811M23)
关键词
波波夫超稳定性
永磁同步电机
模型参考
自适应
Popov hyperstability theory
permanent magnet synchronous motor
MRAS
adaptive
