基于矢量控制的电动自行车控制器设计  

Design of electric bicycle controller based on vector control

作　　者：刘锴[1] 王宜怀[1] 徐达[1] 

机构地区：[1]苏州大学计算机科学与技术学院,江苏苏州215006

出　　处：《现代电子技术》2018年第2期111-115,共5页Modern Electronics Technique

基　　金：国家自然科学基金:无线网传感器网络中紧急事件信息发布的可靠性研究(61070169)~~

摘　　要：电动自行车传动系统中对节能和降噪的需求日益提高,相比传统使用两两导通120°方波驱动方式的无刷直流电机,采用矢量控制方式的永磁同步电机具有噪声小、能效低等优点。在满足基本功能的前提下,设计一套低成本的控制器硬件,并描述了两个零矢量交替使用的七段式空间矢量脉宽调制、单电阻采样定子电流重构的基本原理、电动自行车基本功能的软件实现。最后通过基于STM32F031C6T6的实验平台进行验证,实验结果表明,矢量控制系统对电动自行车传动系统性能有较大提升,相比方波控制器具有更高的性价比。The demands of electric bicycle transmission system for energy saving and noise reduction are increased. In comparison with the traditional brushless DC motor driven in the 120° square wave drive mode with conduction in pairs,the permanent magnet synchronous motor in the mode of vector control has the advantages of low noise and low energy efficiency. Under the premise of satisfying the basic functions,a low-cost hardware of the controller was designed. The basic principle of the sevenstep space vector pulse width modulation(SVPWM)that two zero vectors are utilized alternately and single-resistance sampling stator current reconstruction,and the software implementation of the electric bicycle′s basic functions are described. The controller was verified on the experiment platform based on STM32 F031 C6 T6. The experimental results show that the vector control system can enhance the performance of the electric bicycle drive system greatly,and has higher cost performance than the square wave controller.

关 键 词：电动自行车 永磁同步电机 矢量脉宽调制 单电阻采样 电流重构 转矩脉动 

分 类 号：U484[交通运输工程—载运工具运用工程]