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转矩脉动     
相关语句
  torque ripple
     Torque Ripple Optimization of Space Vector PWM
     空间矢量PWM的转矩脉动优化
     Aiming at the problem of higher torque ripple of switched reluctance motor,the nonlinear dynamic model for a switched reluctance motor(SRM) based on magnetic characteristic is analysed.
     针对开关磁阻电动机SRM(Switched Reluctance Motor)转矩脉动大的问题,基于SRM的磁化特性,分析了SRM的非线性模型。
短句来源
     Research on the Low Torque Ripple of Direct Torque Control System
     低转矩脉动直接转矩控制系统的研究
短句来源
     Control of Torque Ripple of a Switched Reluctance Motor Based on Torque Vector Control
     基于转矩矢量控制的开关磁阻电机转矩脉动控制
短句来源
     An Algorithm for Controlling SRM Torque Ripple Reduction
     一种控制SRM转矩脉动减小的算法
短句来源
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  torque pulsation
     (2)accelerated demagnetization for increasing veracity and reducing torque pulsation;
     ②为了检测的准确性和减少换相转矩脉动,应该处理好加速退磁问题;
短句来源
     But it has the disadvantages of torque pulsation, it can't achieve accurate position and speed of higher performance.
     但是无刷直流电动机运行中存在转矩脉动问题,对实现更精确的位置和更高性能的速度控制有极大影响。
短句来源
     Based on the simulation of the asynchronous motors, waveform of voltage, current, rotate speed, torque and flux were obtained. The torque waveform comparisons among the different torque pulsation schemes were given.
     通过对某一具体参数的异步电动机进行仿真实验,得到电压、电流、转速、转矩以及磁链的仿真波形,同时给出了不同转矩脉动减小方案下的转矩波形对比,从而证明了所提出的方案在实现转矩脉动的减小方面的效果。
短句来源
     But the BLDCM has the disadvantages of torque pulsation, which is in the way of achieving accurate position and speed of higher performance.
     但是,无刷直流电动机运行中存在转矩脉动问题,对实现更精确的位置和更高性能的速度控制有极大影响。
短句来源
     The influence of different stator and rotor structures on the torque of PMDC brushless motor is analyzed by means of ANSYS software, and the strategy of minimizing torque pulsation and increasing output is discussed.
     本文以 ANSYS软件为工具,分析了永磁无刷直流电机不同定转子结构对于转矩的影响,论述了消除转矩脉动和提高电机出力的策略。
短句来源
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  torque ripples
     On the basis of this structure and method of control,the 10/8 pole is compared with the 8/10 pole external rotor doubly salient permanent magnet motor in torque ripples,and it's educed that the 8/10 pole motor is propitious to reduce torque ripples.
     在电机结构和控制策略的基础上,对10/8极和8/10极两种外转子双凸极永磁电机转矩脉动进行比较,得出8/10极电机更有利于减少转矩脉动
短句来源
     Analysis of Torque Ripples of Vector-Controlled Permanent Magnet Synchronous Motors
     矢量控制永磁同步电动机的转矩脉动分析
短句来源
     Torque ripples are small in all speed;
     全速度范围内的电磁转矩脉动都比较小;
短句来源
     Through the detailed analysis of the commutation torque ripples and the relationship between the DC current and phase current in the commutation interval, two effective methods are proposed to reduce the commutation torque ripples. The two methods are the negative DC current elimination method and the commutation current prediction control method, respectively.
     通过分析换相转矩脉动产生的机理和换相期间直流母线电流、相电流的波形,得到了造成换相转矩脉动的本质原因,并在此基础之上提出了两种抑制换相转矩脉动的方法:通过消除直流母线负电流减小换相转矩脉动和换相电流预测控制抑制换相转矩脉动的方法,并且对这两种方法进行了实验验证。
短句来源
     The Relation Between Torque Ripples and PWM Modes of Brushless DC Motor
     无刷直流电机PWM调制方式与转矩脉动关系研究
短句来源
更多       
  torque-ripple
     Torque-Ripple Minimization in Switched Reluctance Motor Based on BP Neural Network
     基于BP神经网络的开关磁阻电动机转矩脉动控制
短句来源
     Based on the ANN model of SRM, the effective torque-ripple minimization control techniques are proposed, namely, the desired-current-waveform control technique based on the torque share function.
     基于所建模型,提出了有效的SRM转矩脉动最小化控制技术,即以转矩分配函数为基础的期望电流波 形控制技术。
短句来源
     uses adaptive fuzzy intelligent control strategy to increase the torque density , avoid current peaks , enhance robusticity and adaptive ability of controller by on-line parameter identification and correcting control parameters on time and match proper current loop, so torque-ripple is minished and high performance-control of SRM is got.
     文中采用了自适应模糊智能控制策略,通过在线辨识电机参数、实时修正控制参数以增加转矩密度、避免电流尖峰、增强控制器的鲁棒性和自适应能力,并配以适当的电流内环,从而减小电机的转矩脉动,实现SRM的高性能控制。
短句来源
     Moreover, the hysteresis band current control and the voltage model control techniques are applied respectively to make the actual current track the desired current, as a result that the torque-ripple minimization is ideally achieved.
     在期望电流波形控制的基础上,提出了电流滞环控制技术和基于电压模型控制技术,从不同的角 度实现了SRM转矩脉动最小化控制,比较了各自的优缺点。
短句来源
     On the basis of the analysis of SRM torque model, a new control strategy is presented which solves the torque smooth transition in the process of commutation, thus reducing toque-ripple effectively. An online control scheme of the strategy is discussed in detail. The reduction of torque-ripple decreases the noise of motor effectively.
     在分析SRM转矩模型的基础上,提出了一种控制策略用于解决换相过程中转矩平滑过渡的问题,从而有效地降低了转矩脉动,详细讨论了该控制策略的一种在线控制方案,转矩脉动的降低有效地降低了电机的噪声。
短句来源
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  torque ripple
As a result, the torque ripple is suppressed using the proposed method.
      
Experimental results illustrate outstanding performance regarding thermal response, torque ripple, reference trajectory tracking, torque disturbance rejection and joint stiffness.
      
As a combination of direct torque control (DTC) and flux-oriented vector control, it achieves round stator flux and continuous dynamic torque control resulting in less torque ripple than that in DTC.
      
A wide-angle wave control method of reducing torque ripple for brushless DC motor
      
It can minimize torque ripple, increase torque, and realize sensorless control for BLDC motor.
      
更多          
  torque pulsation
In order to deal with torque pulsation problem caused by traditional control method for brushless DC (BLDC) motor and to achieve high precision and good stability, a novel control strategy is proposed.
      
Solutions obtained clearly exhibit that the torque pulsation can be effectively reduced by appropriate skew-like shaping of permanent magnets.
      
To satisfy this requirement, we developed a method for calculating the sound generated when a rotating blade is excited by the torque pulsation of a motor.
      
As expected, this presents a high value of 6th order harmonic of torque pulsation.
      
Every time the stator current is commutated from one phase to another, a torque pulsation is generated.
      
更多          
  torque ripples
However, a ripple current occurs in the inactive phase due to the diode freewheeling during the non-commutation period in the traditional pulse width modulation (PWM) methods, which aggravates the torque ripples.
      
A new method for reducing commutation torque ripples in bldc motors
      
A new compensation method and an algorithm for compensating for the commutation torque ripples of the trapezoidal EMF brushless DC motor are put forward.
      
Influence of PWM modes on commutation torque ripples in sensorless brushless DC motor control system
      
Disturbance-observer-based adaptive feedforward cancellation of torque ripples in harmonic drive systems
      
更多          
  torque-ripple
These torque-ripple and stall problems at the zero crossing increase at higher speeds and with higher motor inductance.
      
  其他


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