最后本文采用定子磁场定向的矢量控制策略,结合转速扰动功率观测的控制算法对转子侧进行了仿真验证。
Finally, simulating experiment for the whole system is carried through with the stator flux-oriented vector strategy and control arithmetic of rotor speed perturb and power observation.
通过对高功率因数变流器网侧指令和实际电流的预测,提出了一种采用变流器电压矢量优化控制策略的电流跟踪新方案。
This paper discusses a new control tactics of the converter which adopt voltage vector optimum control tactics by predicting the current of high power factor converter.
根据无刷双馈电机的特性,采用磁链定向的矢量变换控制技术设计了一种新型功率控制系统。
According to the characteristics of brushless doubly-fed wind turbine and adopting flux linkage oriented vector transformation control technology, a new type of power control system is developed.
利用声辐射阻力矩阵和振动面上的速度矢量预报了结构声辐射的总功率。
The acoustic radiation resistance matrix is combined with the velocity vector on a vibration surface to predict the total sound power radiated from the structure.
提出了一种异步电机无速度传感器矢量控制的新方法,用瞬时无功功率和励磁电流变化来估计电机转速。
This paper proposes a new method of sensorless vector control for induction motors, in which the motor speed is estimated by both instantaneous reactive power and variation of magnetizing current.
依据新的输入电压空间划分及合成空间矢量,确定了新的功率控制开关表。
A new power control switching table is set up according to new dividing of input voltage space and resultant voltage space vectors.
研究表明,短时矢功率谱可以对矢量信号的短时能量随频率、时间等的变化过程作出分析,可以应用于旋转机械故障诊断实践中。
The application shows that it can analyze the change of the short-time energy of vector signals as frequency and time change, being applicable to the fault diagnosis of rotational machinery.
通过此关系,设计了基于恒功率因数的节能型异步电动机矢量控制系统。
According to this relationship, vector control system with energy-saving based on constant power factor was formed.
在信号源不相关的情况下,通过对权矢量的循环使用和功率信号的更新处理,实现对DOA时变信号源的跟踪。
When signals are uncorrelated, by using the specific weights in turn and refreshing the power measurements continuously, the time-changed DOA of signals can be traced.
通过对背景误差方差、特征长度的调整,显著改善了背景误差功率谱的分布特点,使得NMC方法结果与更新矢量方法结果更为吻合。
After the tuning of background error variance and de-correlation length, results from the NMC-method are closer to those of the innovation vector method, and the analysis results are improved.
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。
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.
矢量孤子簇的动力学特点与抽运功率与偏振设置有关。
The dynamics characteristics of the vector soliton bunches are related to the pumping power and polarization bias.
从交流励磁发电机的基本方程出发,通过对其矢量图和功率流程的研究,提出了变速恒频的实现方法。
Based on the basic equation of A. C. exciting alternator, the vector chart and power flow chart of the alternator are studied, and a method of variable-speed and constant frequency (VSCF) is proposed.
本文介绍一种利用磁光晶体记录特性进行高功率微波场矢量测量的传感技术。
The sensor technology for high power microwave vector field by using recording characteristics of magneto-optic crystal is described in this paper.
然后是三相四线制无功补偿发生器的理论基础(主要是瞬时无功功率理论和IGBT脉冲产生的空间矢量法);
Thirdly, this paper introduces academic base used in this equipment , mainly are instantaneous Var power theory and Special Vector Method for generating pulse used springing IGBT;
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.
阐述了双馈发电机的矢量控制原理及其相应的最大功率点跟踪和发电机定子侧输出单位功率因数的控制策略。
The paper analyzes the vector control theory for doubly fed induction generator, Maximal Power Point Track (MPPT) and control strategy for the unity power factor of stator output.
建立了双馈发电机双闭环矢量控制系统,研究了功率控制模式和转速控制模式下发电机系统的调节原理和动态特性。
DIFG double closed-loop vector control strategy is established; regulating principle and dynamic characteristic in active power control mode or speed control mode is discussed.
系统采用间接矢量控制技术,通过高频交流脉冲密度调制接口变换器,对功率进行协调控制。
The suggested system makes use of a single phase HFAC pulse density modulation(PDM) converter as the interface to connect energy storage unit and power source for induction motor drive system.
建立了对基于电压空间矢量pwm的三相高功率因数整流器实现电流稳态无差拍控制的设计准则。
Set up the circuit design criterion for the steady - stage deadbeat control to the line current of a three - phase high-power-factor rectifier based on voltage space-vector PWM.
介绍了一种适用于大功率牵引电机控制的矢量控制方法。
A vector control system applicable for high-power pulling motor was presented.
利用矢量运算中的内积算法和叉乘算法来推导有功功率和无功功率。
The inner product algorithm and cross multiply algorithm in the vector calculation are used to deduce active power and reactive power.
风力机按最大功率点跟踪方式运行,在考虑发电机损耗和变频器容量的前提下,通过最优化电流矢量控制获得最大输出功率。
The maximum available power is obtained by the optimum current vector control considering the converter capacity and the losses of generator.
实验结果验证了定子磁链定向的矢量控制策略既能保证定子输出频率恒定,又能较好地跟踪风力机的最大功率输出。
The stator flux-oriented vector controlling strategies of keeping stator frequency constant and capturing the maximum wind power are verified by experiment results.
运用定子磁链定向的双馈异步发电机矢量控制能够实现定子侧有功功率和无功功率的解耦控制。
The stator flux-oriented vector control method can realize de-coupled control of active and reactive power.
该模型基于定子磁场定向的矢量控制方法,采用双pwm变流器,对大型并网风电机组的最大风能跟踪、有功和无功功率的解耦控制进行了仿真。
In the MATLAB, using a structured design method, a dual PWM converter control system model were established on the basis of the stator flux field vector control technology.
本文采用基于三维空间坐标的功率理论,即三相电压对应到三维空间坐标中的三维空间矢量。
In this paper, three-phase voltage will be corresponded to the three-dimensional space vector in the three-dimensional space coordinate.
左侧第一纵轴为动态范围,右侧第二纵轴为输出功率。 这些属性也体现了矢量网分扩频模块S参数测量的良好性能。
On the left primary vertical axis is dynamic range in dB while on the right secondary axis is output power in dBm.
该方法基于空间电压矢量调制,实现了动态过程中有功功率和无功功率的解耦控制。
Space vector modulation (SVM) is applied to the scheme, and decoupling control for the active and reactive power during the dynamic course is realized.
高压大功率同步机采用全数字化矢量控制方法控制的实现及其应用。
Implementation and application of high voltage large capacity synchronous machine with digital vector control.
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