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。
The open loop time constant of the main generator influence the overshooting evidently. The important factor is the rising speed of the output DC voltage.
主发电机的开环时间常数会对建压过冲产生影响，而输出直流电压的上升速度也是一个重要因素。
The institution of all the humping speed control systems basically depends upon open loop control which restricts the character of speed regulating and random adaptability to the circumstances.
现行各种制式的驼峰速度控制系统，都基本属开环控制，限制了速度调整的品质和当外界因素变化时的随机适应能力。
A rotor flux oriented control system with flux and open-loop speed estimators is described. The key module of this system is the flux and speed estimator.
介绍了一种采用磁链和开环速度估算器的转子磁场定向的控制系统，系统设计的的关键问题是磁链的观测和速度的准确估算。
And a new hybrid speed identification method is also proposed, which based on the neural network, combines the open loop estimator and the instantaneous reactive power model reference adaptive system.
介绍了异步电动机矢量控制系统神经网络速度控制器的设计方法；同时提出了将开环直接计算与模型参考自适应方法相结合的神经网络混合转速辨识模型。
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。
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；
The flow field visualization of a straight HP turbine cascade is conducted in a large-scale low-speed open -loop cascade heat transfer wind tunnel.
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流动显示实验研究。
Experimental results show preliminarily that our open-loop method for obtaining gyro drift can meet the precision and speed requirements needed for initial alignment of INS in China.
实验证明，开环测漂方案既能满足精度要求，又能保证快速性，切合工程实际的需要。
This paper gives a particular introduction about comparing circuit, and presents the reasons why the open-loop comparing circuit could not operate stably in a condition full of high-speed noise.
本文详细介绍了比较电路工作特点，分析了开环比较电路在高频噪声干扰环境中不稳定工作的原因。
Subsequently, an open loop experiment has been tested which verified the feasibility of the experimental generation system can run in variable speed and constant frequency condition.
随后，进行了双定子无刷双馈发电机实验系统的开环发电实验，实现了该发电系统的变速恒频发电。
Experimental results show that compared with open loop multi-injection speed and multi-holding pressure programmable controller controlled system, the stability of product w...
实验结果表明，与程控器多级注射速度多级保压压力开环控制相比，制品重量的稳定性有明显提高。
Experimental results show that compared with open loop multi-injection speed and multi-holding pressure programmable controller controlled system, the stability of pro...
实验结果表明，与程控器多级注射速度多级保压压力开环控制相比，制品重量的稳定性有明显提高。
Experimental results show that compared with open loop multi-injection speed and multi-holding pressure programmable controller controlled system, the stability of product weight has be...
实验结果表明，与程控器多级注射速度多级保压压力开环控制相比，制品重量的稳定性有明显提高。
Rotating drive Experiment: Testing the rotor speed under the open-loop driving.
旋转驱动实验：测试了开环驱动作用下转子转速。
The work of agencies to rely on speed and for adjusting the pump or motor variables agencies to achieve, to avoid the open loop system for the process are the hydraulic impact and energy loss.
工作机构的变速和换向靠调节泵或马达的变量机构实现，避免了开式系统换向过程中所出现的液压冲击和能量损失。
Danfoss Variable speed driver can drive the permanent magnetic motor via open-loop or close-loop method.
丹佛斯变频器可以开环或闭环方式驱动交流永磁同步电机。
While on the condition of the current-open loop, software will take charge of all the control of the motor with low-speed chopped operation.
在电流开环情况下，完全由软件实现电机的低速斩波运行。
While on the condition of the current-open loop, software will take charge of all the control of the motor with low-speed chopped operation.
在电流开环情况下，完全由软件实现电机的低速斩波运行。
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