摘要
系统以TMS320F240DSP芯片为核心,以斜槽无刷稀土永磁正弦波同步电动机为伺服电机,提出软件伺服策略,构成变结构全数字高精度宽范围的永磁同步电机伺服系统。系统兼顾稳态和动态性能,实现了位置换向和时间换向相结合的变结构控制,使这两种控制结构的优点都得到发挥。软件伺服实现的变结构稀土永磁同步电动机调速系统较单纯用一种控制结构的系统具有更高的精度和更小的转矩脉动,其调节速度更快且更易于实现低速平稳运行。
Based on the CPU of special motor controller-TMS320F240,the software servo control methods have been designed and debugged.For realizing high precision,wide speed range and stepless speed adjustment.we design a variable structure A.C. servo system for rare earth permanent magnet synchrounous motor (PMSM).In this system,position-conmmutate mode and time-commutate mode are combined.The keys and the difficulties of the control system are studied.The concept of software servo is bring forward.We can learn by experiment that the error of steady speed is less than 1 r/min,the speed range is 50～90000 r/min and stepping out is overcome in this system.
出处
《微特电机》
北大核心
2004年第8期24-26,46,共4页
Small & Special Electrical Machines
