摘要
为了提高双三相感应电机参数辨识的鲁棒性,并为控制系统提供准确的电机参数,介绍了一种新颖的在线辨识双三相异步感应电机的定子电阻和定子漏感的方法。根据电机在谐波平面的数学方程,注入该平面的电压矢量会在这个平面产生顺时针旋转的电流矢量,同时也能保持基波平面参考电压不变,且不引入转矩和磁链脉动。根据注入的电压矢量和采样的定子电流可以计算定子电阻和漏感。该文介绍了参数在线辨识以及谐波平面电流幅值和相位可控的谐波平面电压矢量注入方法的原理。实验结果验证了方法的有效性。
To improve the robustness of parameters on-line identification strategy of dual three phase induction motor, and supply accurate machine parameters to control system, this paper introduces a novel method of on-line identifying the stator resistance and leakage inductance of dual three phase induction motor. According to the machine mathematical model in harmonic subspace, the voltage vector injection in this space causes a clockwise rotated current vector, meanwhile can also keeps reference voltage in fundamental subspace unchanged and without bringing the torque and flux oscillation. The stator resistance and leakage can be calculated by the injected voltage vector and sampled stator currents. The principle of the parameters on-line identification and voltage vector injection strategy which can also keep the amplitude and phase of the generated currents in harmonic space under control is presented and analyzed in detail. Experimental results proved the feasibility and validity of proposed method.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2014年第6期872-881,共10页
Proceedings of the CSEE
基金
国家自然科学基金资助项目(51277102)
国家863高技术基金项目(2012AA110801)
清华大学自主科研计划(2011Z02167)~~
关键词
双三相感应电机
电压矢量注入
谐波子空间
定子电阻
参数在线辨识
dual three-phase induction motor
voltage vector injection
harmonic subspace
stator resistance
parameters on-line identifying
