The system employs the variable speed regulation of electrically driven feed pump and the regulator valve to fulfill the control of water level.
该系统采用电动给水泵变速调节和调节阀共同完成水位控制。
The paper has analysed the structure principle of this kind of device, and analysed soft start, soft brake, variable speed regulation and multi-drive power balance.
论文就这种装置的结构原理进行了分析，并对这种装置实现软启动、软制动、无级调速及多点驱动功率平衡进行了分析。
With the nonlinear and time variable characteristics of hydraulic turbine regulation system, high qualified speed adjustment system cannot be achieved with the conventional PID controller.
水轮机调节系统具有非线性和时变性的特性，传统的PID控制器无法获得高性能的调速系统。
Factors affecting the variable regulation speed have been found. Some measures for raising the speed are advised.
发现影响变量调节速度的一些因素，提出了提高调节速度的一些措施。
This paper studied the three-phase PWM(pulse width modulation) rectifier in dual PWM variable frequency speed regulation system.
对双PWM变频调速系统中的三相PWM整流器及其控制方法进行了研究。
This product adopts adjustable plastic board for conveyor belt, high-temperature resistance, corrosion resistance, with infinitely variable speed motor power, can be arbitrary regulation speed.
本产品线采用可调节的塑料板作输送带，耐高温、耐腐蚀，以无极变速电机作动力，可任意调节速度。
The optimization theory and method combined with variable frequency speed regulation technology is applied in this paper to realize efficiency optimization in water injection pumping stations.
利用最优化原理与方法结合变频调速技术实现注水泵站效率优化控制，以满足油田生产节能降耗的需要。
As the application of AC variable frequency speed regulation is widely popularized, the request of high precision and high integrality about SPWM generator becomes higher.
由于交流变频调速越来越得到广泛应用，对高精度高集成度SPWM产生器的要求也就越来越高。
Method of. modeling using the intelligent optimization algorithms is discussed for AC variable frequency speed regulation system.
针对交流变频调速系统，探讨了应用智能优化算法实验建模方法。
First this paper research on using variable speed fluid couplings in speed regulation control system of dual pumps or fans machines running in parallel mode.
本文首先对调速型液力偶合器应用于泵或风机双机并联运行的调速控制系统进行研究。
The electric control unit USES variable frequency step-less speed regulation for easy operation, operation panel is simple and clear.
本机的电气控制采用变频无级调速，操作方便、直观，操作面板简洁、明了。
Combined with the variable frequency transformation of the induced fan in my company, the variable frequency speed regulation technology is ripe, and the electricity-saving effect is significant.
结合我公司引风机的变频改造，认为变频调速技术已经成熟，节电效果显著，在其他转机上可以应用。
Adopt variable frequency control, stepless speed regulation, the roller tilt Angle can be adjusted.
采用变频控制，无极调速，滚筒倾斜角可调节。
Worktable gyration adopts transducer infinitely variable speeds; the precision of speed regulation is high.
工作台回转采用变频器无级调速，调速精度高。
The electric control uses variable frequency step-less speed regulation for easy operation. Operation panel is simple and clear.
本机的电气控制采用变频无级调速，操作方便、直观，操作面板简洁、明了。
To this problem, the variable-frequency speed regulation and flow regulation split-ranging coordinated control of the centrifugal pump for energy saving is given.
离心泵的变频调速是目前广泛采用的流量调节方法，高效节能是其最大优点，但是当流量降低时，可能造成压头过低而影响后续流程。
The high voltage variable frequency speed regulation is the best energy conservation way at present.
指出目前应用高压变频技术是离心风机最佳的节能途径。
This article briefly introduces the basic control principle of the three-potential PWM variable frequency speed regulation.
文章简要叙述了三电平PWM变频调速方式的基本控制原理。
Finally, through on-line debugging, the author realized the PMSM servo driver with functions of variable frequency speed regulation, parameter identification and parameters displaying.
最后，作者通过在线软、硬件调试，实现了具有变频调速、参数识别和参数显示等功能的永磁同步电机伺服驱动器的研制。
It is of the humane design, variable frequency speed regulation, stable and reliable performance, high automation degree, It is the best equipment for assembling the plastic caps.
该机设计人性化，高频调速，性能稳定可靠，自动化程度高，是塑料盖组装的最理想的设备。
In the light of technical rebuilding engineering practice, the constitution of variable-frequency speed-regulation system and the structure features of inverter are described.
结合技改工程实例，对变频调速系统的构成和变频器的结构特点进行了论述。
The feeding system of the machine is controlled by a stepless variable speed motor with easy and reliable speed regulation.
制粒机喂料系统采用无级变速电机控制，调速方便可靠。
It found that the method is able to analyze diagnostic characteristics of the variable frequency speed regulation system with asynchronous motor.
实践证明，该方法可以有效地分析变频调速异步电机故障。
It found that the method is able to analyze diagnostic characteristics of the variable frequency speed regulation system with asynchronous motor.
实践证明，该方法可以有效地分析变频调速异步电机故障。
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