一种改善的全阶磁链观测器及速度计算  

An Improved Full Order Flux State Observer and Velocity Calculation

作　　者：李瑞强[1] 刘跃敏[1] 范波[1,2] 

机构地区：[1]河南科技大学电子信息工程学院,河南洛阳471003 [2]中信重工机械股份有限公司,河南洛阳471003

出　　处：《微电机》2013年第2期50-54,共5页Micromotors

基　　金：河南省教育厅自然科学研究项目(2011B470003)

摘　　要：在全阶磁链观测器中加入反馈矩阵可以解决平滑切换及阻尼的改善问题,引入增益矩阵可以提高响应速率。在模型参考自适应方法的基础上建立全阶磁链观测器观测模型,把设定的电机转速作为参考模型,与磁链观测后的计算速度作比较,通过不断修改参数值使电机运行趋于稳定。在Matlab中的Simulingk仿真模块中建立控制电路模型,得到加入增益前后的磁链观测图和速度推算图,通过比较图像验证增益矩阵的改善作用。Feedback matrix in the full order flux observer can resolve the problem of smooth switch and damping improvement, the introduction of the gain matrix can improve the response rate. Established the full order flux observer model on the basis of the model reference adaptive control, set the motor speed as a refer- ence model, compared with the speed calculation through the flux observer, made the motor running stabi- lized tend to continuously modify the parameter values. Set up the control circuit model in the the simulation module of Matlab/Simulink, got the image of speed and the flux observer before and after adding the gain, then proved the improving function of of gain matrix by comparing the image.

关 键 词：异步电机 全阶观测器 反馈矩阵 增益 

分 类 号：TM343[电气工程—电机]