1) double Sepic converter
双重Sepic变换器
2) SEPIC converter
SEPIC变换器
1.
Sliding-mode control and stability analysis in SEPIC converter;
SEPIC变换器的滑模控制及其稳定性分析
2.
Power factor correction(PFC) technique based on SEPIC converter is researched in this paper.
本文对基于SEPIC变换器的功率因数校正技术进行了研究。
3.
Then a novel DC-DC SEPIC converter and switches selection circuit is employed in the control system and the DC link voltage control strategy is proposed: This method can get desired DC link voltage precisely and improve the robustness of the control system by keeping the speed adjustment and the output of SEPIC converter apart.
其次,本文在详细介绍换相转矩脉动产生原因的基础上,推导出“换相期间直流侧电压等于4倍反电动势时能完全消除换相转矩脉动”的结论,并据此提出基于DC-DC变换器(SEPIC)的新型无刷直流电机控制系统结构和直流侧电压控制方法,该方法将转速调节与SEPIC变换器输出调节两个动态调节过程相分离,增强了系统的鲁棒性,提高直流侧电压响应速度及输出精度,并且不用精确知道换相时间,可以满足其在更大工况范围内的高性能控制。
3) double Fourier transform
双重Fourier变换
1.
Based on Biot s theory for fluid-saturated porous media,the 3-D Biot s wave equations in rectangular coordinate for transversely isotropic saturated poroelastic media are transformed into the l-order governing differential equations by means of the double Fourier transform method with respect to horizontal coordinates.
首先引入状态向量,将直角坐标系下横观各向同性饱和土的Biot波动方程转化为一组状态方程,然后基于双重Fourier变换,求解了状态方程,得到传递矩阵。
2.
Based on Biot s theory for fluid-saturated porous media,the 3-D Biot s consolidation equations in rectangular coordinate for transversely isotropic saturated poroelastic media are transformed into a group of 1-order governing different equations by means of the Laplace transform and double Fourier transform with respect to the time and horizontal coordinates respectively.
首先引入状态向量,在直角坐标系下推导出横观各向同性饱和地基Biot固结问题的状态方程,然后基于Laplace变化和双重Fourier变换,求解了状态方程,得到传递矩阵,进而利用传递矩阵,并结合饱和地基的边界条件、排水条件及层间接触和连续条件,求解了层状横观各向同性饱和地基的Biot固结问题。
3.
The theoretical solutions of vertical displacement of the pavement are derived using the double Fourier transform,and the solutions can be degenerated to the corresponding classical solution of static problem.
又将此荷载模式看成是作用在Kelvin地基上无限大路面板表面的移动矩形荷载,采用双重Fourier变换方法得到了不平整无限大路面板竖向位移的积分形式解,此解析解可以退化为静荷载作用下的经典解答。
4) dual transform domains
双重变换域
1.
Semi-fragile watermarking algorithm in dual transform domains;
一种双重变换域图像半脆弱水印算法
5) duality transformation
双重性变换
6) back-to-back PWM converter
双PWM变换器
1.
The control of the grid-side PWM converter in the back-to-back PWM converter has been investigated in the paper.
在双PWM变换器的网侧PWM变换器的研究中,提出了定向矢量控制方案,并进行仿真验证了所提出方案的良好控制性能。
补充资料：变换器式功率因数表(见变换器式电表)
变换器式功率因数表(见变换器式电表)
transducer type power factor meter
b lanhuonq一sh一gongl口y一nshub(ao变换器式功率因数表(transdueer type powerfaetor meter)见变换器式电表。
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