1) Harmonic elimination
谐波消去
1.
A novel PWM generator based on the theory of harmonic elimination is proposed in this paper,which has the following advantages such as sheer digitizing,not occupying the time of the microprocessor and simpler circuit
介绍了一种基于谐波消去原理的新型PWM发生器,该系统具有全数字控制、电路简单、不占用微机资源等优点。
2.
This paper presents two methods of solving nonlinear equations based on the theory of harmonic elimination for switching angle, and a method presented before is modified and improved.
本文介绍了两种基于谐波消去原理的非线性方程组的求解 ,并对已有的一种解法进行了修正和完善。
2) harmonic/eliminating way
谐波/消去法
3) selected harmonic elimination pulse width modulation
选择谐波消去脉宽调制
1.
The character of selected harmonic elimination pulse width modulation (SHEPWM) and its development are summarized after expounding basis principle.
阐述选择谐波消去脉宽调制技术(selected harmonic elimination pulse width modulation,SHEPWM)的基本原理,系统地总结其特点和发展现状。
5) harmonic elimination
谐波消除
1.
A novel harmonic elimination technique based on PWM is proposed for single-switch three-phase AC-DC Buck converter.
尤其是新PWM技术的任意谐波消除能力实现了对交流系统不对称以及谐波畸变的适应能力。
2.
A kind of novel harmonic elimination AC voltage regulator is proposed.
提出一种新型谐波消除交流电压调节器方案,采用斩波方式AC-AC降压变换器结合输出串联补偿升压变压器实现负载电压的双向调节。
3.
Selected harmonic elimination PWM (SHEPWM) technique applicable to hybrid cascade multilevel converter is studied.
研究了混合级联多电平变换器的特定谐波消除脉宽调制 (SHEPWM)技术 ,针对 1/ 4周期对称的混合级联多电平SHEPWM问题 ,提出了一种使用具有均匀电平的通用多电平SHEPWM方法求取预期的输出电压波形 ,然后采用混合级联多电平电路来实现所需电压和功率输出的解决办法。
6) clearing resonance
消除谐波
1.
The paper analyzed the cause of ferromagnetic resonance of the neutral point unearthing system in 10?kV subsection after switching in 3 phases and 5 posts voltage transformer,and discussed a variety of measures of clearing resonance.
就中性点不接地系统 10kV配电所中由于接入三相五柱电压互感器产生铁磁谐振原因进行分析 ,并对各种消除谐波措施进行探
补充资料:人工消云消雾武器
人工消云、消雾是指采用加热、加冷开播撒催化剂等方法,消除作战空域中的浓雾,以提高和改善空气中的能见度,保证已方目视观察、飞机起飞、着陆和舰艇航行等作战行动的安全。在第二次世界大战中,英军曾使用一种名为“斐多”的加热消雾装置,成功地保障了2500架次飞机在大雾中安全着陆。1968年,美军为保障空军飞机安全着陆,曾使用过人工消雾武器。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条