Frequency conversion and stepless speed regulation, thus ensuring steady speed and facilitating speed regulation.
采用变频无级调速、转速稳定、调速方便。
This paper introduces chop feedback speed regulation technique and compares it with frequency conversion and cascade technique.
介绍了斩波内馈调速技术，以及与变频和串级技术的比较。
Set of unit has convenient to move, a high degree of automation, iron recovery high characteristic, can be selected frequency conversion control realize stepless speed regulation.
整套机组具有移动方便、自动化程度高、铁回收率高的特点，可以选配变频控制实现无级调节。
Field-Path model and calculation method are set up for dynamic performance to be accurately calculated in a system of PWM frequency conversion and speed regulation in the paper.
建立了PWM变频调速系统动态性能精确计算的场―路模型和计算方法。
Worktable use 2 grades gearbox and frequency conversion stepless speed regulation.
工作台采用二级变速箱，用变频无级调速。
Worktable use 2 grades gearbox and frequency conversion stepless speed regulation.
工作台采用二级变速箱，用变频无级调速。
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