Direct Torque control (DTC) is a AC speed regulation method with high dynamic performance developed after vector control.
针对异步电动机直接转矩控制系统低速性能差的问题，提出了两项改进措施。
A speed regulation method with auto disturbance rejection controller (ADRC) for a linear direct-drive AC servo system is presented.
设计了一种基于自抗扰控制原理的永磁直线电动机调速系统。
A mechanical speed regulation method is used to solve problems above, and better electric energy conservation effection is acquired.
针对以上问题，改用机械调速方式，对存在的问题进行了解决，并取得较好的节电效果。
This method regulates speed by changing the number of steps of the additional resistor in the rotor circuit, so it's hard to realize smooth speed-regulation, also its performance is poor.
该方法是通过调节转子回路附加电阻的有级调速，难以实现平滑地调速，而且调节性能差，调速过程中大量的转差功率通过转子回路电阻转化为热能消耗掉了。
Speed regulation system using cascade control method with thyristor is a low-cost system, but the classic system has some shortages, such as low power factor, serious harmonic pollution and etc.
晶闸管串级调速系统是一种廉价、简易的调速系统，但是传统串调系统存在着诸如功率因数低、谐波污染严重等弊端。
Based on principle in speed regulation of centrifugal pump, method of speed regulation calculation for energy saving and its effects have been studied.
本文从离心泵变速调节原理入手，探讨了以节能为目标的离心泵变速调节的计算方法和效果。
In this paper we introduce a method of regulation PI parameters of Speed regulation system of motor on line by computer.
该文介绍一种通过计算机编程实现对电机调速系统中PI参数的在线调节的方法。
An applicable method to control regenerative cutting chatter automatically based on the optimal regulation of spindle speed is introduced.
提出一种实用的通过主轴转速寻优调整对再生型切削颤振进行自动控制的方法。
Using space vector pulse-width modulation (SVPWM) signal transformation method, speed regulation of induction motor is implemented by controlling the duty ratio of every converter switch.
利用电压空间矢量脉宽调制(SVPWM)信号变换控制功率变换器各开关器件的导通占空比，实现异步电动机的速度调节。
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。
Use the method of the frequency governor with machine speed. Bring about a stepless regulation of all constant power range, in the rotating main movement of universal machine tools.
用变频调速和机械变速相结合的方法，在主运动为旋转运动的通用机床中，实现全部恒功率范围内的无级调速。
To improve quality factor of two closed speed regulation systems, this paper advances the two - channel control method used with acceleration regulator.
本文提出采用带有加速度调节器的双通道控制模式可提高双闭环调速系统的品质因素。
The fan load and operation characteristics of various speed regulation technique method for fan is put forward.
本文分析了风机负荷与不同调速方式的运行特性，并提出合理的风机调速方式。
The article analyses two throttle speed regulation hydraulic system and presents the control method to in line throttle speed regulation hydraulic system.
分析了两种节流调速液压系统，提出了进油路节流调速系统的控制策略。
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。
This paper analyzes the characteristics of the start-up process of the DC PWM speed regulation system, also presents the feasible method of limiting start-up current for the system.
本文分析了直流pwm系统起动过程的特点，并提出了系统中限制起动电流的可行方法。
The format of data, PI regulation method, speed calculation and generation of sine and cosine are explained in details.
并对程序中数据的格式处理、PI控制的数字实现、速度计算方法和正余弦函数的计算做了详细的讲解和说明。
The paper introduced a method that using SIMOREG DC-MASTER 6RA70 rectifying device to realize 12-pulse serial rectification technology and then realize DC speed-regulation control of hoist.
文章介绍了采用西门子SIMOREG DC-MASTER6RA70整流装置实现12脉动串联整流技术、进而实现提升机直流调速控制的方法，并给出了12脉动串联整流驱动参数的设置。
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。
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。
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。
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