Experimental results show that the system are reasonable designed and can achieve good speed adjusting performance.
试验结果表明该系统设计合理，具有良好的调速性能。
On the basis of modern control theory, the quadratic performance index was selected to design SCR DC speed-adjusting system.
本文以现代控制理论为基础，选用二次型性能指标设计可控硅直流调速系统。
Furthermore, different polygonal flux linkage locus's fluent switching point is also found, which overcomes the motor 'switching failure and improves the speed adjusting dynamic performance.
并找出了不同磁链轨迹间的平滑切换点，解决了切换时的电动机失步问题，提高了系统转速调节的动态性能。
The practices show that it achieves the goal of raising performance and saving energy by applying variable frequency speed adjusting. The economic and comprehensive benefits are noticeable.
实践表明，收尘排风机控制系统采用变频调速后，达到了提高系统性能和节能的目的，其经济效益和综合效益显著。
The speed adjusting system consisting of SCC, KB, LED display and speed coder is tested and excellent performance is achieved.
配以单片机、键盘、LED显示器及转速编码器，构成闭环调速系统。经过实际测试，取得了很好的效果。
The invention has the advantages of compact structure, stable transmission, convenient control, good speed-adjusting performance, quick response speed, and the like.
本发明的优点在于结构紧凑，传动稳定，控制方便，调速性能号，响应速度快等。
Simulation research has been taken for its operation performance and the result indicated that BDFM was very suitable for the use of variable frequency adjusting speed.
然后简要分析了无刷双馈电机的基本原理，并对其运行特性进行了仿真研究，结果表明无刷双馈电机非常适合作为变频调速用电机。
Simulation research has been taken for its operation performance and the result indicated that BDFM was very suitable for the use of variable frequency adjusting speed.
然后简要分析了无刷双馈电机的基本原理，并对其运行特性进行了仿真研究，结果表明无刷双馈电机非常适合作为变频调速用电机。
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