This paper presents a novel open-loop speed control method for induction motors that provides high output torque and nearly zero steady-state speed error at any frequency.
提出了一种新颖的感应电机开环速度控制法，在任一频率下，它不但能使电机输出高的力矩，而且使稳态速度误差几乎等于零。
The algorithm is fit for open-loop stable systems.
该算法适用于开环稳定系统。
Secondly, the polygonal open-loop resonator was studied.
其次，本文研究了多角形开环谐振器结构。
Computer use of vertical feed system for open-loop control.
利用微机对纵进给系统进行开环控制。
The design succeeds in realizing open-loop control of step-motor.
设计成功实现了步进电机的开环控制。
Fig. 37.1 is a general representation of an open-loop control system.
图37.1是对开环控制系统的一般性表示。
Speed detection subsystem has been calibrated by the motor open-loop tests.
通过电机开环调试，标定了速度检测子系统；
To improve the performance and selectivity of filter, a complementary open-loop resonator(COLR) is proposed.
为了改善滤波器的性能，提高滤波器的选择性，提出了互补开环谐振器（COLR）。
Based on quadratic optimal control of the crane placed source open-loop method of research, this is very creative.
基于二次型最优控制的起重机开环消摆方法的研究，这是很有创意的。
It is demonstrated that earthquake response of structure can be decreased by the method of fuzzy open-loop control.
模糊开环控制能有效地减小建筑结构的地震反应。
Based on the fuzzy relational model of the open-loop system, the design of a fuzzy feedback controller is discussed.
以开环系统模糊关系模型为基础，讨论了模糊关系系统反馈控制器的设计。
An open-loop (direct) system operates without feedback and directly generates the output in response to an input signal.
一个无反馈的开环（直接）系统直接产生对于输入信号的输出响应。
In this paper, a simple method of plotting logarithmic phase frequency response curve for open-loop systems is advanced.
文章给出了绘制开环系统对数相频特性曲线的简便方法。
This paper deals with the stability improvement of open-loop excitation system by using feedforward compensation control.
本文论述了用前馈补偿控制提高开环励磁系统稳定性问题。
A major deficiency of piezoelectric actuators is that their open-loop control accuracy is seriously limited by hysteresis.
压电陶瓷存在迟滞现象，开环定位精度受到严重影响。
Using this virtual instrument, the frequency characteristics of both open-loop system and closed-loop system can be measured.
设计的虚拟仪器既适用于对开环系统又适用于对闭环系统的频率特性进行测试。
Uniform Pulse Distribution is technical difficulty and key technologies in open-loop CNC which use time-slicing interpolation.
在采用时间分割法插补的开环数控系统中，精插补的脉冲均匀分配是其中一项关键技术，也是技术难点。
The alignment process is separated into two steps, i. e. , coarse alignment, or analytical alignment, and open-loop fine alignment.
对准过程分作二步完成，即解析对准与开环精对准。
In this paper, the new inverse dynamics method, which designs the open-loop control torque for one-link flexible manipulator, is proposed.
本文提出了一种在时域上设计柔性机械臂开环控制力矩的逆动力学方法。
All the stabilizing IMC controllers and the resulted closed-loop systems were characterized in terms of the open-loop system's time delays.
所设计的多变量内模控制器能使系统稳定解耦，所得到的闭环系统根据开环系统时滞来描述。
The proposed method combined the open-loop control and the closed-loop control, resulting in extending the protect area of emergency control.
提出将开环控制与闭环控制两种方式相结合，扩大了紧急控制的保护范围。
A unified model for harmonics and reactive current closed-loop or open-loop detection was established based on instantaneous reactive power theory.
基于瞬时无功功率理论建立了谐波及无功电流检测系统闭环、开环的统一模型。
Moreover, this paper puts forward an adaptive method of control valve based on open-loop and enhances measure accuracy through curve fitting method.
同时，本文提出一种基于开环的阀门开度自适应控制方法，通过在线曲线拟合的方法提高阀门控制的精度。
The flow field of straight HP turbine cascade was investigated experimentally in a large-scale low-speed open-loop cascade heat transfer wind tunnel.
本文在大尺寸低速开式叶栅传热风洞中对一种高压涡轮导向叶栅中的流场进行了实验研究。
Then the fuzzy controller based on the improved fuzzy table-rotating optimization is designed and applied to the open-loop systems with pure time delay.
然后将基于改进后的模糊规则建立的模糊控制器应用到纯时间滞后系统的控制中。
In the analog domain, the basis for the basic implementation of a two-position controller is an analog comparator or an open-loop operational amplifier.
在模拟域，双位置控制器的主要部分是模拟比较器或开环运算放大器。
In the demodulation process of some digital open-loop algorithms, some special phase points will confuse with each other and cause an error output value.
目前已经提出的一些数字开环解调算法在运算过程中时常会出现某些特殊相位点互相混淆的问题，这会导致系统输出错误的解调结果。
There are three usual methods for excitation control following constant excitation current, constant power factor, and constant setting open-loop control.
常用的励磁控制方法主要有三种：恒励磁电流、恒功率因数、恒给定开环控制。
This paper presents an analytical method for determining the controller parameters based on the open-loop frequency transfer function of regulating systems.
本文提出一种以系统开环频率特性为基础的调节器参数的解析整定法。
If unexpected disturbances act upon an open-loop system, or if its behavior is not completely understood, then the output will not behave precisely as expected.
如果有不期望的扰动作用在开环系统上，或者如果其行为不能完全掌握的话，则该系统的输出就不会完全如预期般动作。
应用推荐