摘要
针对传统电机控制实验平台功率小、单个DSP控制周期过长等问题,研究37kW异步电机通用交流调速实验平台。介绍该平台的软硬件设计,并利用该实验平台开发基于预测控制的异步电机直接转矩控制算法,分析预测控制原理及实现方法,在该平台上验证基于预测控制算法减小直接转矩控制系统转矩脉动的可行性。研究结果表明:该控制系统核心选用双DSP结构,充分利用TMS320F240电机控制能力强和TMS320C31浮点运算能力强的特点,使其协同工作,提高实验平台性能,平均转矩脉动为6.7%。
Since the power is small and the control period based on single DSP is hard to be shortened in conventional motor control experimental platform, a 37 kW asynchronous motor AC speed regulation experimental platform was researched. The software and hardware were introduced. The direct torque control strategy based on predictive control was developed by this platform, and the predictive control principle of the system and the implementing method were analyzed. The experimental results show that it is feasible to reduce the torque ripple of DTC system by using predictive control algorithm, and the average of torque ripple is 6.7%. The two DSP work parallel are used, making use of the strong motor control ability of TMS320F240 and strong floating-point calculation of TMS320C31, and the performance of the experimental platform is improved.
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第4期980-985,共6页
Journal of Central South University:Science and Technology
基金
国家自然科学基金资助项目(60574030)
关键词
异步电机
交流调速实验平台
双DSP结构
直接转矩控制
预测控制
asynchronous motor
AC speed regulation experimental platform
double DSP
direct torque control （DTC）
predictive control
