感应电机SSFOC自适应速度辨识  

Adaptive Identification of Rotor Speed for Speed Sensorless Field-Oriented Control of Induction Motors

作　　者：万军[1] 张耀升[2] 王建海 

机构地区：[1]贵州民族学院,贵州贵阳550025 [2]天津大学,天津300072 [3]贵州红枫发电总厂,贵州贵阳551417

出　　处：《电力电子技术》2005年第6期90-91,94,共3页Power Electronics

摘　　要：基于电压模型转子磁通估计,提出了一种模型参考自适应系统,实现了无速度传感器磁场定向控制(Speed Sensorless Field-Oriented Control,简称SSFOC)逆变器感应电机的速度控制。通过自适应电流观测器估计转子速度,并以其估计值代替磁场定向控制和速度控制中的真实速度。为了准确估计转子速度,同时辨识了电机转子电阻。该自适应系统是超稳定系统。驱动系统可工作在一个较宽的速度范围内。实验验证了该方案的有效性。Applying rotor flux estimation based on voltage model, a model reference adaptive system is presented to realize speed control of speed sensorless field-orientation controlled inverter induction motor drive.The rotor speed is estimated with an adaptive current observer,and is used for field-orientated control and speed control with replacing the real speed.In order to estimate the speed accurately, the motor rotor resistance is also identified in the observer.The adaptive system is to be hyperstable.The drive can be operated in a wide range of speed.Experiments show that the scheme is effective.

关 键 词：感应电机 传感器 磁场定向控制/自适应电流观测器 

分 类 号：TM346[电气工程—电机] TP212[自动化与计算机技术—检测技术与自动化装置]