异步电机无速度传感器解耦矢量控制  

Speed Sensorless Decoupling Vector Control for Asynchronous Motors

作　　者：任林 宗剑 闫娜云 石弘洋 REN Lin;ZONG Jian;YAN Nayun;SHI Hongyang(College of Electrical and Electronic Engineering,Shanghai Institute of Technology,Shanghai 201418,China)

机构地区：[1]上海应用技术大学电气与电子工程学院,上海201418

出　　处：《电气传动》2020年第9期15-19,共5页Electric Drive

摘　　要：传统的矢量控制系统仅实现了转速与转子磁链的静态解耦,并没有从根本上消除定子电压方程中的交叉耦合项。为解决上述问题,引入前馈解耦补偿改善PI调节器对动态性能的影响,同时在速度闭环引入模糊调节器代替PI调节器,并采用低通滤波器替代纯积分环节以改善模型参考自适应方案中纯积分环节对转速估算精度的影响。改进方案的实验结果表明,所采用的控制策略能够提高电机的动态性能和转速辨识精度。In the traditional vector control system,only the static decoupling of the motor speed and the rotor flux linkage is realized,and the cross-coupling in the equation of stator voltage is not fundamentally eliminated.To solve the above problems,a feed-forward decoupling compensation was introduced to improve the impact of PI regulators on dynamic performance.At the same time,the fuzzy controller was introduced to instead of the PI regulator in the speed closed-loop.A low-pass filter was used to instead of the pure integral link and to improve the influence of the pure integral link on the accuracy of the speed estimation in the model reference adaptive scheme.The experimental results show that the adoption of the control strategy can improve the dynamic performance and the accuracy of speed identification of the motor.

关 键 词：无速度传感器 前馈解耦 模型参考自适应 模糊控制 

分 类 号：TM343[电气工程—电机]