中国电机工程学报2012，Vol.32Issue(18)：98-107,10.
直接转矩控制永磁同步发电机相位自校正型定子磁链观测器
A Phase Self-tuning Stator Flux Linkage Estimator for Permanent Magnet Synchronous Generators Based on the Direct Torque Control
周扬忠 1许海军1
作者信息
- 1. 福州大学电气工程与自动化学院,福建省福州市350108
- 折叠
摘要
Abstract
Although the direct torque control（DTC） for permanent magnet synchronous generators（PMSG） has many advantages such as quick responses of the torque and the output DC voltage,an accurate stator flux linkage estimation must be demanded to achieve these good performances.The applied stator flux linkage estimator must be robust to PMSG parameter variations because the actual PMSG parameters vary with operation points.A novel stator flux linkage estimator was proposed in this paper.The rotor position angle was estimated based on the active flux concept in the presented estimator,and then the voltage model of stator flux linkage was connected with the current model with the estimated rotor position angle.The vector product of the estimated stator current and the actual current was sent to a PI modulation,and then the estimated rotor position angle was adjusted with the PI output in order to decrease estimation errors of the stator flux linkage phase.The experimental results show that the presented flux linkage estimator is insensitive to parameter changes of PMSG and the sampling errors of analog quantities without rotor speed and parameter identification,which ensures an accurate stator flux linkage estimation,and the torque and the DC generating voltage are controlled quickly and smoothly with the proposed stator flux linkage estimator.关键词
直接转矩控制/永磁同步发电机/相位自校正/定子磁链观测器Key words
direct torque control(DTC)/permanent magnet synchronous generator(PMSG)/phase self-tuning/stator flux linkage estimator分类
信息技术与安全科学引用本文复制引用
周扬忠,许海军..直接转矩控制永磁同步发电机相位自校正型定子磁链观测器[J].中国电机工程学报,2012,32(18):98-107,10.
