摘要
磁场定向控制和直接转矩控制技术正在成为异步电动机转矩控制的工业标准。文章给出这两种控制方案的详细比较,重点是它们的优、缺点。从转矩和电流脉动、跟踪转矩命令阶跃变化的转矩瞬态响应等方面评估了两种控制方案的性能。根据数值仿真结果进行了分析,但未涉及系统硬件带来的二次影响。
Field-oriented control and direct torque control are becoming the industrial standards for induction motors torque control.Thispaper is aimed to give a contribution for a detailed comparison between the two control techniques,emphasizing advantages and disadvantages.The performance of the two control schemes is evaluated in terms of torque and current ripple, and transient response to step variations ofthe torque command.The analysis has been carried out on the basis of the results obtained by numerical simulations,where secondary effectsintroduced by hardware implementation are not present.
出处
《变流技术与电力牵引》
2004年第2期11-16,29,共7页
Converter Technology & Electric Traction
关键词
异步电动机
矢量控制
直接转矩控制
磁场定向控制
数值仿真
digital signal processor
direct field oriented control
direct signal processor
vector control
direct torque control
discretespace vector modulation
field oriented control
pulse-width modulation
comparison
