沈阳工业大学学报2018，Vol.40Issue(2)：126-132,7.DOI:10.7688/j.issn.1000-1646.2018.02.02
基于流变仪的高精度宽调速永磁同步驱动系统
Permanent magnet synchronous drive system based on rheometer with high precision and wide speed regulation
摘要
Abstract
In order to ensure that the test system for the drilling fluid rheometer can work normally in harsh environment,a driving system where the speed could be continuously adjusted in a wide range and the speed resolution might be high was designed. The fractional slot structure was adopted in the motor, the harmonic content and cogging effect of the motor could be reduced by choosing the proper slot match and optimizing the waveform of air gap flux density, and thus the speed resolution and running stability of the motor could be improved. The constant voltage frequency ratio control mode in combining with the sensorless control algorithm and space vector pulse width modulation technology was adopted to improve the precision of open-loop control for the system. The coupling simulation model for both motor and its control system was established. The analysis results show that through optimizing the dynamic characteristics of fractional slot motor system, the motor can smoothly run over a wide speed range and has a high speed resolution, and the requirement in the driving system of rheometer can be satisfied.关键词
钻井液流变仪/永磁电机/分数槽/宽范围调速/速度分辨率/恒压频比/空间矢量脉宽调制/无位置传感器控制算法/场路耦合仿真Key words
drilling fluid rheometer/permanent magnet motor/fractional slot/speed adjustment in wide range/velocity resolution/constant voltage frequency ratio/space vector pulse width modulation/sensorless control algorithm/coupled field-circuit simulation分类
信息技术与安全科学引用本文复制引用
陈亚千,张炳义,冯桂宏,孙磊道,于永航..基于流变仪的高精度宽调速永磁同步驱动系统[J].沈阳工业大学学报,2018,40(2):126-132,7.基金项目
国家重大科学仪器设备开发专项基金资助项目(2012YQ05024207). （2012YQ05024207）
