摘  要：分析了无速度传感器矢量控制和空间矢量脉宽调制（SVPWM）的基本原理，提出了带补偿的电压模型磁链及转速估算方法。该方法考虑到了积分误差和定子电阻，并能在全速度范围内得到较好的磁通及转速估计。利用TMS320F2808实现了异步电机无速度传感器矢量控制系统，给出了系统硬件和软件设计方案。试验结果表明系统具有良好的动静态性能和稳定性。
关键词： SVPWM；异步电机；无速度传感器；带补偿的电压模型；全速度范围

Abstract: This paper analyzed on the basic principles of speed sensorless vector control and space vector pulse width modulation(SVPWM),and put forward the voltage model with compensation flux and speed estimation method.This method takes into account the integral error and the stator resistance,and can get better magnetic flux estimation in full speed range. Using DSP(TMS320F2808),realized the asynchronous motor speed sensorless vector control system,and presented the design of hardware and software solutions.The experimental results show that the system has good dynamic and static performance and stability.
Key Words: SVPWM；Asynchronous motor；Speed sensorless；Voltage model with compensation；Full speed range