During a modulation period, several dead voltage vectors were synthesized. Using the control software, the reference voltage space vector could be corrected. Thus the dead-time effect was eliminated.
在一个调制周期内,可预先求出几个死区电压矢量的合成矢量,用控制软件的方法实现对参考空间电压矢量的校正,从而消除死区效应。
An electrician peels the dead rat out of the high voltage box for the electric chair.
一个电工将死老鼠从为电椅通电的高压电箱中取了下来。
Analysis shows that the voltage operating dead zone is small and have more sensitivity than traditional power directional relay.
分析表明其电压动作死区很小,比传统的功率方向元件具有更高的动作灵敏性。
Dead-time is compensated according to the output reference voltage vector and phase currents.
首先判断电流方向,确定死区电压矢量的电平;
Aiming at the phenomenon of reduced system output voltage capability, phase deflection and wave aberration of tradition SVPWM dead problem.
传统SVPWM控制方式存在死区时间,使系统输出电压能力降低,出现相位偏差、波形畸变等现象。
The relationship between the dead-time voltage sector and the stator current sector is analyzed and a method for compensating the stator voltage sector is proposed based on the reconstructed current.
分析了死区电压矢量和定子电流矢量的关系,由此得到一种根据重构电流矢量来补偿定子电压矢量的方法。
Unreasonable selection of dead time can make inverting components to produce higher inrush voltage and current and even damaged.
死区时间选择的不合理会使逆变器件产生过高的浪涌电压和电流甚至损坏。
The dead time control in SPWM converter increases the harmonic component in voltage output and decreases the voltage utilization and reliability of converters.
SPWM变换器中的死区设置使变换器输出电压谐波含量增加、电压利用率和可靠性降低。
A modified dead time compensation method was used to obtain better output voltage waveforms.
采用了改进的死区效应补偿方法以获得理想的输出波形。
By analyzing the basic influence of the "dead time effect" acting on the output voltage of SVPWM inverter, the concept of the dead time voltage vector is put forward.
在分析死区效应对空间电压矢量调制输出电压影响的基础上,提出死区电压矢量的概念,给出死区电压矢量的求取方法。
The design consideration for two dead times is presented to assure that voltage stress for main switches is within half of input voltage and ZVS for each main switch is achieved.
提供了该变换器两个死区时间的设计方法,从而保证了开关电压应力限制在输入电压的一半,同时满足每个开关零电压关断的实现条件。
There is no operative"voltage dead zone", and the definite directionality exists.
同时,继电器不存在动作的“电压死区”,具有明确的方向性。
By analyzing the basic influence of the "dead-time effect" acting on the output voltage of SVPWM inverter, the concept of the dead-time voltage vector is put forward in this paper.
在分析死区效应对SVPWM输出电压影响的基础上,提出死区电压矢量的概念,给出死区电压矢量的求取方法。
The turn-on and turn-off of power devices under zero voltage are realized with addition of dead time. The power supply for GTO gate driver is developed by use of the converter.
通过设置死区时间实现开关功率器件的零电压开通与关断,利用该变换器研制出GTO门极驱动用电源。
The influence of dead time of power device IGBT on inverter's output current and output voltage is discussed.
分析了变频器主功率器件IGBT的死区时间对其输出电压、输出电流的影响。
The results indicate that the dead time effect distorts inverter output voltage and current waveform and increases torque ripples of the motor.
结果表明,死区效应引起了逆变器输出电压波形畸变,引起了电机电流波形畸变和转矩脉动。
This causes well known dead time effect which distorts the output voltage and current.
这将导致电压和电流的畸变,也就是所谓的死区效应。
This paper analyzed the influence of the dead-time effect acting on the output voltage of SVPWM inverter, and proposed a solution to dead time compensation.
本文在分析死区效应对空间电压矢量调制输出电压影响的基础上,给出了一种对死区效应进行补偿的方案。
Aimed at dead time effect of voltage-fed space vector pulse width modulation (SVPWM) inverter, a novel compensation method detecting current polarities from the current vector was presented.
针对电压源型空间矢量脉宽调制逆变器的死区效应,提出了一种根据电流矢量判断电流极性的死区补偿方法。
Aimed at the influence on the inverter output voltage caused by the PWM inverter dead-time, one dead time compensation strategy is proposed.
针对PW M电压型变频器死区时间对输出电压的影响,提出了一种死区时间补偿方案。
In the design of voltage PWM inverter, the existence of dead-time will arouse the in-crease of output harmonic, the pulsation of the motor torque, and even the oscillation of the motor.
设计电压型PW M变频器时死区时间的设定会造成输出谐波增加、负载电动机转矩脉动,严重时甚至引起电动机震荡。
With the instrument the defects of the conductor on the high voltage overhead transmission line can be inspected whether the line is dead or in operation.
依据高压输电线的结构特点,可同时使用涡流检测原理和漏磁检测原理分别对导线的铝绞线和钢芯损伤情况进行检测。
The paper analyzes the dead time effects of the PWM voltage sourse inverter.
详细分析了PWM逆变器的死区效应和常用的补偿死区的方法。
The paper analyzes the dead time effects of the PWM voltage sourse inverter.
详细分析了PWM逆变器的死区效应和常用的补偿死区的方法。
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