基于新型纯积分法的定子磁链在线辨识算法

发布时间：2018-01-14 01:28

本文关键词：基于新型纯积分法的定子磁链在线辨识算法　出处：《电机与控制应用》2017年10期 　论文类型：期刊论文

【摘要】：针对气隙转矩法计算异步电机转矩时对定子磁链辨识精度的要求,提出了一种基于新型纯积分法的定子磁链在线辨识算法,采用了精度较高的复化辛普森积分模型。相比传统的梯形积分法,基于新型纯积方法的定子磁链在线辨识算法的磁链辨识精度显著提高;相比新型的基于低通滤波器的定子磁链观测器,该算法模型更简单,操作更便捷。通过MATLAB/Simulink搭建系统仿真平台进行验证,结果表明基于新型纯积分算法消除了传统积分法的主要缺陷,解决了积分饱和问题以及初值问题。基于新型纯积分算法的估计磁链与理论参考磁链基本吻合,表明其可靠性较高。
[Abstract]:In order to meet the requirement of stator flux identification accuracy when the air-gap torque method is used to calculate the torque of induction motor, a new on-line stator flux identification algorithm based on a new pure integration method is proposed. Compared with the traditional trapezoidal integral method, the precision of stator flux on-line identification algorithm based on new pure product method is improved significantly. Compared with the new stator flux observer based on low-pass filter, the algorithm model is simpler and the operation is more convenient. The simulation platform is built by MATLAB/Simulink. The results show that the new pure integration algorithm eliminates the main defects of the traditional integration method and solves the problem of integral saturation and initial value. The estimated flux based on the new pure integral algorithm is basically consistent with the theoretical reference flux. It is shown that its reliability is high.
【作者单位】：大连理工大学;江苏省特种设备安全监督检验研究院无锡分院;
【分类号】：TM343
【正文快照】： 0 引言随着能源短缺以及温室效应问题的日益严重,世界各国都把节约能源、开发新能源摆在国民经济发展的首要位置。在我国工业生产中,耗能最大的主要是机电产品,其中中小型三相交流异步电机的能耗约占2/3,总用电量占全国总电量的50%。目前工业中运行的电机大多都已经严重老化

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