ripple frequency
英 [ˈrɪpl ˈfriːkwənsi]
美 [ˈrɪpl ˈfriːkwənsi]
网络 脉动频率; 波纹频率
双语例句
- Synchronous rectification produces a ripple frequency twice that of the excitation frequency and thus is easier to remove with a lowpass filter.
同步稳压产生两倍激励频率纹波频率，因此更容易被低通滤波器去除。 - Torque Ripple Study in the Motor Soft Starting Process with Discrete Variable Frequency Method
电机分级变频系统中转矩脉动的研究 - With electrode thickness increases, passband ripple becomes smaller, center frequency moves toward lower frequency.
当电极厚度增加时，通带的涟波会变小，中心频率会降低。 - Torque Ripple Control for Drive-Train in Variable Speed Constant Frequency Wind Turbines
变速恒频风力发电系统传动链转矩波动控制 - The relationship between ripple frequency of second order rainbow and grain diameter is simulated at 20 ℃ and 80 ℃ respectively by Lorenz-Mie theory, therefore the experimental formula is obtained to measure the diameter of homogeneous droplet at a certain temperature.
利用洛伦兹米理论（LMT）模拟计算了温度为20℃和80℃下水粒子二阶彩虹的高频结构与粒子直径的关系，获得了经验公式。该关系式可用来测量确定温度下均匀水粒子直径。 - The response speed of force increases and the current ripple reduces by choosing the rational parameters of coil and the modulated frequency of PWM.
通过选择合理的线圈参数和PWM信号的调制频率，可以达到减小电流纹波的目的。 - Parameters to be specified by the user are as follow: width of waveguides, thickness of strips, pass-band frequencies, pass-band insertion attenuation ripple and minimun insertion attenuation at a specified frequency in stop-band.
由使用者指定的参数为：波导的宽度，膜片的厚度，通带的边缘频率，通带内插入衰减的波纹，阻带内特定频率的最低插入衰减。 - The control signals of invertor are produced by space vector modulation to achieve a small torque ripple and constant switch frequency.
以空间矢量调制方法来获得逆变器的开关信号，实现了小的转矩脉动和恒定的开关频率。 - Thrust Control of Permanent Magnet Linear Synchronous Motor with Low Ripple and Constant Switching Frequency
低脉动恒开关频率直线永磁同步电机推力控制 - To measure DC voltage ripple spectrum and frequency modulation of AC voltage, the digital filter is used.
对于直流电压脉动和频率调制，采用数字滤波器进行滤波后再做分析处理。 - It features in low torque ripple, low flux ripple and fixed switching frequency.
它具有开关频率恒定，转矩和磁链波动小等特点。 - Based on the maximal allowable current ripple, the switching frequency and the damping characteristic, a novel design method of the LCL filter applied to the three-phase shunt APF ( Active Power Filter) is proposed.
基于电流最大允许脉动、逆变器开关频率和阻尼特性要求，提出了应用在三相并联有源电力滤波器中的LCL滤波器的一种新颖的设计方法。 - A hydraulic pump is considered as a pressure and flow ripple source for the hydraulic system, and its mathematical model in frequency domain is studied.
本文对液压系统中的流量压力脉动源一液压泵的频域数学模型作了研究。 - The new modified formula not only meets with our experiment result, but also can explain the examples of relationship between the speed and the current ripple frequency of DC motors in the literature.
新的修正公式不仅能够解释文中的实验结果，也能满足以往文献提出的直流电动机转速与脉动电流频率之间的关系。 - Finally, a solution to restraining the harmonic current and ripple torque is suggested, ie a larger modulation frequency ratio of 3K is to be adopted, as it is used in SPWM.
文中还提出了抑制谐波电流和脉动转矩的方法，如在SPWM生成中，采用较大的3的整数倍调制比。 - However, its theory is still immature and the disadvantages of large torque ripple and unfixed switching frequency are still unsolved.
但目前，DTC的理论尚未发展成熟，实际应用中转矩脉动大，开关频率不固定等问题仍然没有得到很好的解决。 - However, direct torque control there are still some shortcomings, such as torque ripple, current harmonics serious, the inverter switching frequency is not constant and so on, seriously limit their applications.
然而，直接转矩控制技术仍然存在一些不足之处，如转矩脉动、电流谐波严重、逆变器开关频率不恒定等问题，严重限制了其应用场合。 - In order to cope with undesirable torque ripple and unconstant switching frequency this paper designs two improved DTC systems.
针对转矩脉动过大和逆变器开关频率不恒定的问题，本文设计了两种改进的直接转矩控制系统。 - A kind of novel non-linear loop control solution is proposed, aiming at the problem of high output voltage ripple and unfixed frequency in nonlinear control loops.
针对非线性控制环路中输出电压纹波大和频率不固定的问题，提出了一种新颖的非线性控制环路方案。 - Reducing the flux linkage and torque ripple, making the inverter work in the constant switching frequency.
减小传统直接转矩控制中的磁链和转矩脉动，并使逆变器工作在恒定的开关频率。 - Simulation results prove that the SVM-DTC can remarkably overcome the large torque ripple and current distortion while maintaining the switching frequency constant.
仿真结果表明，SVM-DTC在保证逆变器开关频率恒定的前提下，能够有效减少转矩脉动和电流畸变。 - Then in order to overcome the disadvantages, such as torque and flux ripple, unfixed switching frequency and flux identification error at lower speed range, the thesis presents a modified flux identification method, space vector module and fuzzy speed regulator to improve the DTC performance.
然后针对其低频磁链辨识不准、转矩和磁链脉动大、电力电子器件开关频率不固定等缺点，论文通过改进磁链辨识方法、利用空间矢量调制和模糊速度调节器对传统直接转矩控制技术进行了改进。 - The amplitude of the current ripple and its frequency component are both influenced by the time-varying duty cycle.
时变的占空比不仅影响着电流纹波高频分量的幅值，而且使其频谱不再单一。 - Using interleaving technology, the input current ripple and high frequency electromagnetic interference are significantly reduced.
交错并联技术的运用，显著减少了输入电流的纹波和高频电磁干扰。 - It inherits the virtues of interleaving flyback converter. It has two units working alternately, the power loss of the converter is distributed and the output voltage ripple frequency is twice of the switching frequency.
该变换器继承了交错并联反激变换器的优点，两个并联单元互补工作，分担功率损耗，输出电压的脉动频率为主开关管的两倍。 - The experimental results show that the output circuit ripple coefficient increases will lead to light output fluctuation increased, but the different impact of light output ripple coefficient is weaken under high frequency driver condition ( 10kHz).
实验结果表明，输出电路纹波系数增加将导致光输出波动增大，但不同纹波系数对光输出波动的影响在高频（10kHz）驱动情况下减弱。 - However, the asynchronous motor traditional DTC system has the problem of torque, flux linkage and current ripple and inconstant switching frequency.
然而，异步电动机的直接转矩控制系统存在转矩、电流和磁链脉动较大，开关频率不恒定的问题。 - Research on the static characteristics of piezoelectric driver. When drive power is at rated load ( capacitive), the frequency response and ripple specifications are directly related to whether the experimental platform contains high frequency response and high precision.
压电陶瓷驱动电源静态特性研究驱动电源在额定负载（容性）时的频响和纹波指标与实验平台是否具有高频响和高精度特性直接相关。 - With natural interleaving technique, the front PFC could depress the current ripple and the stress on the power device. With frequency shifting and LLC series resonant topology, the End DC-DC converter can highly raise response speed and expend the ZVS range.
前级采用自然交错控制技术，可以减小电流纹波和开关管的电流应力；后级采用变频控制，LLC串联谐振拓扑，可以提高系统响应速度、增加ZVS工作范围。 - The motor and PWM inverter are seemed as one controlled object, so that the motor can obtain a constant magnetic field similar to the ideal circle and at last, solving the problems of torque, current, flux linkage ripple and inconstant switching frequency.
把电动机和PWM逆变器看成一体，使电动机获得赋值恒定的近似理想的圆形磁场，解决其转矩、电流、磁链脉动大，开关频率不恒定的问题。