摘要
研究基于模型参考自适应的交流异步电机无速度传感器矢量控制系统的转速估计,提出以电机瞬时无功功率为模型的转速估计方法,消除定子电阻项和积分项,并根据Popov超稳定理论证明系统的稳定性。在以TMS320F2812DSP为控制核心的平台上进行实验。实验结果表明,所提模型的估计转速和实际转速在低速、中速、高速下都具有较好的动态性能和响应性能,模型具有较好的跟踪性能和稳定性。
Studied the speed estimation of speed sensor-less vector control system of AC asynchronous motorbased on MRAS,and then put forward a kind of speed estimation model by using the reactive power of the motor,which eliminated the stator resistance and integral term,at the meantime,proved the stability of the system byPopov′s hyperstability theory. Experiments on the digital platform based on TMS320F2812 DSP were conducted. Thesimulation and experiment results all show that the estimate speed and actual speed possesses good dynamicperformance and response performance under low speed,medium speed and high speed,and that the reactive powermodel has good tracking performance and stability.
出处
《电气传动》
北大核心
2016年第3期3-6,共4页
Electric Drive
关键词
交流异步电机
无功功率
Popov超稳定理论
模型参考自适应
无速度传感器
AC asynchronous motor
reactive power
Popov′ s hyperstability theory
model reference adaptive system(MRAS)
speed sensor-less
