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This thesis is concerned with design and implementation of a unity power factor, low current harmonics drive for switched reluctance motors (SRM). 摘要:本文旨在设计一市电输入侧具有高功因、低电流谐波之磁阻电动机驱动系统。
To reduce the current harmonics around switching frequency of the three-phase pulse width modulation (PWM) rectifiers,an LCL filter has been adopted. 此外,文中对LCL滤波的三相PWM整流器数学模型进行了详细的分析,并从理论和仿真两方面证明了LCL滤波器的优越性能。
To reduce the current harmonics around switching frequency of the three-phase pulsewidth modulation(PWM)rectifiers, a LCL filter is adopted. 为了减少PWM整流器开关频率附近高次谐波的含量,采用三次LCL滤波器。
Pure sine wave output. Current harmonic content is small. 输出纯正弦波,电流谐波含量小。
The basic conception and the relationship of power factor, current harmonics and EMC for SCR(Silicon Controlled Rectifier) and SMR(Switch Mode Rectifier) at different stage are described. 本文对不同应用阶段的可控硅相控整流器,高频开关型整流器中功率因数、电流谐波、电磁兼容等指标的基本概念及其相关性能作了阐述。
The basic conception and the relationship of power factor, current harmonics and EMI for SCR(Silicon Controlled Rectifier) and SMR(Switch Mode Rectifier) at different stage are described. 本文对不同应用阶段的可控硅相控整流器,高频开关型整流器中功率因数、电流谐波、电磁兼容性等指标的基本概念及其相关性做了阐述。
The relationship among input current harmonic distribution and power factor, total harmonic distortion, psophometric interference current, are discussed. 在此基础上进一步探讨了变流器功率因数、输入电流总谐波畸变率以及等效干扰电流等与谐波分布之间的关系。
Demand is outstripping current production. 现在需求逐渐超过了生产能力。
She broadcasts on current affairs. 她发表时事广播演说。
Our language goes current along the seacoast. 我们的语言通用于沿海一带。
You may open a current account at a bank. 你可以在银行开立一个活期帐户。
I'd like to open a current account with you. 我想在你们这儿开一个活期存款帐户。
He made some comments on current topics. 他对时事问题做了若干的评论。
The swimmer was swept away by the current. 那个游泳的人被激流卷走了。
He is interested in current affairs. 他对时事感兴趣。
She had to swim against the current. 她必须逆著水流往上游。
This button switches the current on. 这个电钮接通电流。
I should like to open a current account. 我想开一个活期存款帐户。
The junk laid by, drifting gently with the current. 帆船顶风停驶，顺水缓慢地漂流着。