中国电机工程学报Issue(15)：2422-2429,8.DOI:10.13334/j.0258-8013.pcsee.2014.15.012
异步电机无速度传感器模型预测控制
Model Predictive Control for Speed Sensorless Induction Motor Drive
张永昌 1杨海涛1
作者信息
- 1. 北京市电力电子与电气传动工程研究中心 北方工业大学，北京市 石景山区 100144
- 折叠
摘要
Abstract
As a kind of optimal control method, Model predictive control (MPC) attracts much attention in the area of AC motor drives recently. For two-level inverter-fed induction motor (IM) drives, conventional MPC needs to predict both stator flux and stator current for seven times to obtain the best voltage vector minimizing the cost function, which leads to high computational burden and is unfavorable for real-time implementation. Based on the analytical study of the relationship between stator flux and stator current, this paper proposed an improved MPC, which only needs to predict the stator flux and avoids the complicated stator current prediction. Hence, the control complexity and computational burden are significantly reduced. Furthermore, to improve the system reliability and reduce the hardware cost, speed adaptive full order observer was introduced to achieve sensorless operation. The influence of control delay was compensated and the strategy of pre-excitation was implemented to avoid large starting current while obtaining high starting torque. Finally, simulation and experimental studies were carried out on a two-level inverter-fed IM drive. The results prove that the proposed sensorless MPC can achieve excellent dynamic and steady state performance over a wide speed range.关键词
异步电机/模型预测控制/无速度传感器/全阶观测器Key words
induction motor/model predictive control (MPC)/speed sensorless/full order observer分类
信息技术与安全科学引用本文复制引用
张永昌,杨海涛..异步电机无速度传感器模型预测控制[J].中国电机工程学报,2014,(15):2422-2429,8.
