摘要
由于传统的矢量控制技术对电动机参数依赖大,电机运行后的参数变化对系统性能影响大,而电压空间矢量控制技术,采用磁链环路通过对电压矢量的控制,可以得到逼近圆形的磁链轨迹,以减小电机低频转矩脉动和谐波电流损耗,达到对速度转矩调整的目的。以80C 196M C单片机为控制器,以IPM为主功率开关器件,设计出异步电动机全数字式SVPWM电压空间矢量控制系统,并给出软件编程和硬件电路,通过利用M ATLAB的S IMUL INK工具对其进行的仿真研究,证实了该系统具有提高电压利用率、抑制电流谐波等方面的优势。
The implementation of traditional vector control technology depends on motor parameters and the change of the parameters will influence system performance greatly. Voltage space vector control technology can obtain approximately round magnetism chain orbit, reducing motor＇s low frequency pulsation and harmonic losses. It can be adopted to adjust the speed torque. A full digital control system for inductive motor has been designed, which uses 80C196MC single-chip as controller and IPM （intellectual power module） as main power devices. The software program and hardware circuits of the control system are presented. The advantages of the system, such as improving the voltage utility ratio and suppressing current harmonics ,have been proved by MATLAB simulation.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2006年第1期58-62,共5页
Proceedings of the CSU-EPSA
关键词
异步电动机
变频调速
电压空间矢量
仿真
induction motor
variable frequency variable speed（VFVS）
voltage space vector
simulation
