Based on the static characteristics of induction motor, this paper analyzes the braking function of general voltage vector controlled frequency converter.
本文从感应电机的静态特性出发，分析了通用电压矢量控制变频调速器的制动功能。
It has characteristics of large current, high power, high voltage, high switch frequency, proven reliability, low losses and so on.
它具有大电流、高电压、开关频率高、高可靠性、结构紧凑、低损耗的特点。
From the viewpoint of propagation of transient voltage and current in distribution network, the transfer characteristics of two-way power frequency signals in distribution network are analyzed.
从暂态电压和电流在配电网中传播的角度，分析了双向工频通信信号在配电网中的传输特性。
The experimental results show that the probe has good frequency response characteristics which meet the requirement of measuring voltage distribution of thyristor in converter valve.
实验结果表明，这种探头有较好的频率响应特性，能满足换流阀晶闸管电位分布测量的需要。
The paper introduces the precise measuring circuit of ultra-low frequency voltage based on the characteristics of the measurement of ULF.
根据超低频电压信号测量的特点，给出了一种精密测量电路。
According to the characteristics of frequency shift track circuits, this paper has analyzed signal acquisition methods of voltage and current measurement on line.
根据移频轨道电路的特点，本文分析了电压、电流在线测量过程中采用的信号采集技术。
IGCT with current, high voltage, high switching frequency, high reliability and compact structure, and low loss characteristics, but have led to the low yield, a good prospect.
IGCT具有电流大、电压高、开关频率高、可靠性高、结构紧凑、损耗低等特点，而且造成本低，成品率高，有很好的应用前景。
The effects of actuating frequency, proportional valve input voltage and MR damper input current on the vibration characteristics of seat were experimentally studied.
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。
This controller's input signal is the voltage phase Angle difference between two areas obtained by PMU, which can effectively reflect the inter-area low frequency oscillation characteristics.
该控制器以PM U得到的区域间电压相角差信号作为输入信号，能够直接有效地反映区域间低频振荡特性。
Furthermore, loads voltage/frequency characteristics were considered. Based on these considerations, a microgrid power flow model has been presented.
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。
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.
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。
The fundamental principles of the bulk-driven MOSFET, along with the frequency and noise characteristics, are discussed. The analysis and simulation of its low voltage characteristics are also made.
讨论分析了衬底驱动MOSFET的工作原理、频率特性和噪声特性，并对其低压特性进行了分析和仿真。
The series tuning device fOr the power-frequency withstand voltage test is introduced. The characteristics of the device are analyzed. The conclusion is given.
介绍了变压器工频耐压试验的串联调谐装置，对其性能和特性进行了分析，给出了结论。
The test results show that the power frequency voltage withstanding characteristics of the insulation of protective relays are the key factor influencing tolerable ground potential rise.
结果表明，继电器绝缘的工频耐压特性是影响这一数值的关键因素。
Based on the measured voltage gain-frequency response characteristics, a practical approach for model parameters measurement of piezoelectric transformer was proposed in this paper.
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.
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。
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