本文论述了宽调速比直流电动机无火花换向区曲线分散的基本原因，并给出工程控制措施。
The paper introduces the basic cause of the sparkless space dispersion for DC motor with the wide adjustable speed ratio, and gives the control methods of projects.
实验结果表明，系统调速范围宽，控制性能好。
Experiment results indicate that control system have wide range of speed regulation, good dynamic and static behavior.
试验证明，MRCVT调速具有控制简单，控制功率小，调节范围宽，调速平稳等一系列特点。
It shows that the MRCVT has a series of merits: easy to control, low control power, wide range of regulation, and stable speed regulation, etc.
利用该方法为直流脉宽调速系统设计了控制器，并在实验室进行了实现，显示了良好的动态特性，表明控制器具有较大的工程实用价值。
With the CAD Program, controller is designed for the PWM system, Its realization shows good dynamic properties and that the design is valuable in engineering practice.
该系统以空间矢量pwm控制为核心，具有多种接口方式、宽调速范围和良好的动静态特性。
Having the space vector PWM as the core of servo system, it has qualities such as multi-interface, wide speed range, and good dynamic and static performance.
本文介绍PAM、PWM复合控制原理和按此原理研制的大功率晶体管宽调速交流调速系统。
The principle of PAM PWM compound control and the power transistor AC adjustable speed system based on that principle are presented in this paper.
本文介绍PAM、PWM复合控制原理和按此原理研制的大功率晶体管宽调速交流调速系统。
The principle of PAM PWM compound control and the power transistor AC adjustable speed system based on that principle are presented in this paper.
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