本文提出一种带有速度推算算法的转差频率矢量控制。
A new slip frequency vector control scheme with speed calculation algorithm is proposed in this paper.
维持滑差频率不变，就可获得近似于恒定转矩的输出特性。
Keeping slip frequency constant we can get nearly constant torque output characteristic.
该系统能够对磁通的变化及转差频率指令的不准确性进行补偿。
It can also compensate the change in flux and the inaccuracy in slip frequency instruction.
感应电机能量优化控制常根据电机静态模型采用恒转差频率控制。
The programfeasibility is further discussed for the slip frequency control of linear induction motor and the control program is proposed.
感应电机能量优化控制常根据电机静态模型采用恒转差频率控制。
The energy optimization control of asynchronous machine often uses the permanent slip frequency control according to the electrical machinery static model.
针对滑差频率型矢量控制交流调速系统，提出并设计了一种模糊滑模控制器。
A fuzzy sliding mode controller is introduced and designed for an indirect vector control AC speed regulating system.
控制电机的功率因数实质上是对电机转差频率进行控制，使效率保持在最优值。
We find that the principle of the strategy is that it makes the efficiency optimal essentially by controlling the slip frequency.
在几种常见的电机控制方式中，最终选定了转差频率控制方式的变频调速技术。
Slip frequency as a technique of frequency conversion is finally adopted among several control methods of motor.
本文研究分析了转差频率型矢量控制和基于无功功率的无速度传感器矢量控制。
In this thesis, a slid frequency vector control system and a speed sensorless vector control system based on reactive power are investigated and analyzed.
本丈对转差频率控制的变频调速系统进行讨论，分析这种控制方式所存在的不足；
This paper discusses the slip frequency control of variable frequency regulating speed system, and analyses the shortage of this control way.
在此基础上讨论了直线感应电机转差频率控制方案的可行性，并给出了控制方案。
This paper deduces the relationship between power factor and slip angle frequency based on equivalent circuit of induction motor in stable state.
基于观测出的状态信息，构成了转差频率控制的转矩速度双闭环新型变频调速系统。
Utilizing the information observed, a new type of slip frequency controlled torque-speed double closed loop system is developed.
介绍一种以dsp为控制核心的异步电动机转差频率控制系统在电动游览车中的应用。
A slip frequency control system of asynchronous motor used DSP as control center is presented, which apply to the electric tourist car.
介绍采用磁电脉冲测速构成转差频率控制的闭环变频调速系统的组成、原理及动态性能。
The paper introduces the composition, principle and dynamical performances of the closed loop VVVF system using magneto electric pulse tacho apparatus to constitute the slip frequency control.
结果表明：不检测转子磁链的滑差频率矢量控制系统具有结构简单、控制性能优良等特点。
The result show that the system possesses the features of simple structure and excellent control characteristics etc without detecting the slip frequency of the rotor's magnetic field.
针对滑差频率矢量控制交流调速系统，提出并设计一种模糊滑模控制算法对速度环进行控制。
An algorithm for fuzzy sliding mode control was proposed for AC speed drive with a slip frequency vector control.
本文介绍了一种采用MCS—51系列单片机8031对异步机实行滑差频率矢量控制的调速系统。
In this paper, a slip-frequency vector control system using a single-chip micro - computer 8031 of MCS-51 family for variable frequency speed control of induction motor is introduced.
而一些从静态模型出发的能量优化控制策略，如恒转差频率控制，会降低调速系统的动态性能和稳定性。
Some energy optimized control strategies based on static model, such as Constant Slip control, may significantly harm the dynamic character and stability of drive systems.
这一新的控制方案用速度推算算法取代常规转差频率矢量控制系统中的速度传感器，具有适用性广的优点。
In the new scheme the speed sensor of general slip frequency vector controlled system is replaced with speed calculation algorithm, so it has the merit of wide applicability.
针对滑差频率型矢量控制交流调速系统，设计了一种将模糊控制和PID控制的优点相结合的模糊pid速度调节器。
Aiming at indirect vector control for AC regulating system, a fuzzy PID speed controller that combines advantages of fuzzy control with PID control is designed.
转差频率控制能够在一定程度上控制电机的转矩，但它是以电机的稳态方程为基础设计的，并不能真正控制动态过程中的转矩。
Based on the steady state equations of the motor for the design of VSVF, VSVF can control the torque to a certain extent, but it cannot implement the real control in the dynamic process.
转差频率控制能够在一定程度上控制电机的转矩，但它是以电机的稳态方程为基础设计的，并不能真正控制动态过程中的转矩。
Being based on the steady state equations of the motor for the design of VSVF, VSVF can control the torque to a certain extent, but it can not implement the real control in the dynamic process.
本文介绍一种采用单片机MCS - 51实现的异步电机滑差频率矢量变换控制系绕，分析并设计了具有参数自适应补偿的系统结构。
This paper describes a slip frequency vector control system of induction motor using chip microcomputer MCS-51. A structure with parameter adaptive compensation is analysed and designed.
因此，你分配越多的内存，对内存进行垃圾回收的频率就越频繁，你的代码性能就会变得越差。
So the more memory that you allocate, the more frequently the memory is garbage collected, and thus the worse your code's performance becomes.
一阵风包含着因频率不同而速度及方向有差的气流。
A single breath of wind contains small eddies and currents that vary in speed and direction with differentfrequencies.
实验结果显示，一个人说脏话的频率越高，他对疼痛的忍耐力就越差。
The experiment showed the more often people swear in daily life, the less extra time they could stand the pain.
计算发现，水气项中的频率改正对折射率差的贡献是不可忽略的。
Via calculation we find the contribution of the frequency in the vapor term to the refractivity can not be neglected.
计算发现，水气项中的频率改正对折射率差的贡献是不可忽略的。
Via calculation we find the contribution of the frequency in the vapor term to the refractivity can not be neglected.
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