对空间电压矢量方法进行了改进，在不改变系统输出特性的前提下，使开关频率降低了50%。
Maintaining the output character of the system, the voltage space vector control was improved which made the switching frequency decrease 50%.
采用无损接触检测及交叉试验法研究了电激励信号的频率和电压对果品电特性的影响。
The influences of frequency and voltage of electric excitation signal on electric property of fruits with non-destructive and orthogonal experiment method were studied.
一个个人的燃料电池的阻抗特性决定至少部分对整个燃料电池的电压个人在不同频率的多元化每个。
An impedance characteristic of the individual fuel cell is determined based at least in part on the voltage across the individual fuel cell at each of the plurality of different frequencies.
而其它方面的特性，如频率、电压波形、各相平衡则很少被用户认识到，但这恰恰受到电力部门工程师们的时刻关注。
Other characteristics, such as frequency, wave shape, and phase balance are seldom recognized by the consumers but are given constant attention by the electric power utility engineers.
分析了LCLV驱动信号的电压幅值、频率、占空比以及屏幕照度等诸多因素对投影系统对比度特性的影响。
The effects on the contrast of the LCLV projecting system, such as the LCLV driving signal voltage, frequency, duty cycle and the display screen illumination were analyzed.
但由于与噪声电压的大小，网络频率特性及噪声源功率谱形式有关，故测量准确度较低。
Because it is related to the magnitude of noise RMS voltage, the frequency characteristic of circuit and the power spectrum of noise source, the accuracy of measurement is quite low.
试验研究了激励频率、比例阀输入电压及磁流变减振器输入电流对座椅振动特性的影响规律。
The effects of actuating frequency, proportional valve input voltage and MR damper input current on the vibration characteristics of seat were experimentally studied.
要分析电网的暂态特性，还必须考虑衰减直流分量和衰减正弦波，以及电压缺口和频率偏移等问题。
Such problems as the attenuation of DC elements and Sine waveform, voltage sag and frequency deviation should be taken into account in order to analyze the transient process in the power system.
实验结果表明，改变施加在电流变体上的电压确实可以改变复合梁的整体振动特性，尤其是对第一、二阶频率影响比较明显。
The experimental results indicate that the first and second order natural frequencies increase with increasing electric field intensity, however, the third order one is changeless.
在此基础上，进一步考虑负荷的电压/频率调节特性，建立了微电网三相潮流模型。
Furthermore, loads voltage/frequency characteristics were considered. Based on these considerations, a microgrid power flow model has been presented.
本文基于实测压电变压器电压增益-频率响应特性，提出了一种实用的压电变压器模型参数的求解方法。
Based on the measured voltage gain-frequency response characteristics, a practical approach for model parameters measurement of piezoelectric transformer was proposed in this paper.
当频率高于截止频率时，随着频率的升高，电压放大倍数将降低，由此电路具有“低通”的特性。
When the frequency is higher than the cut-off frequency, as the frequency increases, voltage amplification factor will be reduced, thus the circuit has a "low-pass" characteristics.
模拟分析表明 ，采用该结构 ，器件的雪崩击穿电压能提高到理想平行平面结的 90 %以上 ，器件的大电流特性和频率特性也有所改进 。
The simulation analysis indicates that with this structure the avalanche breakdown voltage of RF power transistors can be increased to be over 90% of that for an ideal parallel .
模拟分析表明 ，采用该结构 ，器件的雪崩击穿电压能提高到理想平行平面结的 90 %以上 ，器件的大电流特性和频率特性也有所改进 。
The simulation analysis indicates that with this structure the avalanche breakdown voltage of RF power transistors can be increased to be over 90% of that for an ideal parallel .
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