通过减小腔内回流比例、增大正反方向流阻差，提高泵液效率与输出泵压、减小输出脉动。
By reducing the reverse flow in chamber and by increasing resistance difference of back-and-forth flow, higher efficiency, higher pressure and less output fluctuation could be expected.
通过主回路、引弧电路、稳弧电路的共同作用，解决了一般弧焊电源输出脉动大、功率因数低的缺点。
The problem of annual arc welding power source whose output is surge and power factor is lower, is solved by means of main circuit, arc ignition circuit and arc static circuit working together.
另外，还对滤波器的结构和参数对输出直流电压脉动和发电机相电流波形的影响及相电流谐波进行了仿真分析。
In addition, the thesis analyzes the influence of the filter structure and parameters on the output DC voltage ripple and the shape of phase currents, as well as harmonics of phase currents.
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。
The results indicate that the dead time effect distorts inverter output voltage and current waveform and increases torque ripples of the motor.
交流发电机输出的直流电动势会有较大的脉动电压。
The DC electromotive force output by AC generator can have quite big pulsating voltage.
整流输出的电压、电流脉动大，需要增大滤波器的体积；
Secondly, the low duty cycle leads to the high voltage and current ripple, and enlarges the filter size.
输出电流脉动是多路输出电源的一个重要性能指标，而耦合电感又是影响多路输出电源输出电流脉动的关键部件，因此需要研究耦合电感对输出电流脉动的影响。
The output ripple current is an important parameter of the multi-output converter and the coupled inductor is the key component affecting the output ripple current in the multiple-output converter.
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。
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.
本文详细分析了在异步调制下，直流电压的二次脉动对逆变器输出电流以及电机转矩的影响。
This paper analyses the influence of the rippled DC voltage to the output voltage of the inverter and the motors.
目前国内外电动车直流驱动功率变换器使储能电源输出电流从零到电机电枢电流高频脉动，不利于延长动力电池的使用寿命。
At present power converters of DC driving system make power supply outputs a high-frequency pulsating current, which is from zero to the armature current. This large ripple damages batteries.
充气增压或不用充气增压的气力式压力脉动阻尼器。通常安装在泵的输出端。
Air chamber pneumatic pressure pulsation damper air vessel air bottle pressure chamber.
采用离散占空比控制技术的直接转矩控制能够在减小输出转矩脉动的同时保持算法简单的特性。
Applying discrete duty ratio control technology into direct torque control can reduce the ripple, and keep the feature of simplicity.
在分析一种低脉动输出电压的谐振d C环逆变器原理的基础上，对谐振环的谐振阶段的损耗进行了分析与近似计算。
On the base of the theory of lowly pulsant output resonant DC-link inverter, the loss in the resonant phase of the resonant DC-link is analyzed and almost calculated.
但是整流器的输出并不是纯粹的直流，而是脉动直流。
These pulsations are known as the ac component of the rectifier output.
泵输出的周期性脉动流体的压力脉动，是引起流体谐振、激励管路振动和噪声的主要原因。
The pressure pulsation induced by the pumped periodic pulsation fluid is the main factor of causing fluid resonance and stimulating pipelines vibrations and noise.
脉动补偿电路及优化的电压环使输出电压纹波显著减小，并改善了电路动态性能。
The ripple of the output voltage is decreased remarkably and the dynamic performances of the circuit are improved obviously due to the pulse compensation circuit and the optimized voltage loop.
模式竞争和自脉动效应是影响激光器输出稳定性能的主要因素。
The mode competition and self-pulsing effect were regarded as the main factors that affect the output stability performance of the laser.
在单片机控制下，脉动送丝波形与外特性同步调控。在停止送丝阶段，单片机令电源输出电压为峰值，焊丝在此电压下返烧并形成熔滴。
The output waveform of the oscillating wire feed system and the external characteristic are controlled and adjusted by a single-chip microcomputer (SCM) synchronously.
建立了基于功率变换器的有源式超级电容器-蓄电池混合储能系统的模型，并对控制环节进行了设计，提出了一种在脉动负载下蓄电池恒流输出的控制策略。
A mathematical model of the actively controlled battery-ultracapacitor hybrid energy storage system based on a power converter was set up, and the control loop was designed.
研究了一种新型的水下焊接系统。系统中弧焊电源输出阶梯型的外特性，送丝系统采用脉动送丝方式。
A new type of underwater welding system is studied, which includes an oscillating wire feed system and a welding power source with staircase external characteristic.
超越离合器系脉动无级变速器的关键部件，其工作能力决定了整机效率的高低、输出扭矩的大小和耐用寿命的长短。
Overrunning Speed Clutch is one of the key pats in impulseStepless Speed Regulators, and working capability depends on the control factor of its mechanism efficiency, twist moment and life - span.
双凸极电机的凸极结构及其供电电源的开关形式 ，导致了在输出转矩中存在稳态转矩脉动和换向转矩脉动。
The torque-ripples of the double-salient motor are inevitable for its double salient structure and switch power source.
双凸极电机的凸极结构及其供电电源的开关形式 ，导致了在输出转矩中存在稳态转矩脉动和换向转矩脉动。
The torque-ripples of the double-salient motor are inevitable for its double salient structure and switch power source.
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