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- The principle and application research of supercritical fluid extraction,aqueous tow phase extraction,and etc.new techniques is summarized. 概述了超临界流体萃取、双水相萃取等各种新型技术的原理和应用研究情况。
- Based on quasi-linear model, the phase current of the SRM in PWM combined with APC is computed with making programs. 基于准线性模型,编写了电压PWM和APC相结合的控制方式下相绕组电流的计算程序;
- This paper put forward the view that non-conduction phase current which formulaically and markedly exists had the influence to the BLDCM performance. 研究表明,不导通相的电流明显存在,而且有规律且对电机性能会产生影响。
- Furthermore, the novel field-orientated control algorithm was achieved by generating phase current references in the three phase stationary frame. 在此基础上,给出一种直接在三相静止坐标系中产生相电流命令的磁场定向控制算法。
- The generator shall be run without load for30 minutes, to record the phase current, volt, frequency, stator and bearing temperature once at intervals of10 minutes. 电机应空载试运行2小时,每隔30分钟记录一次相电流、组和轴承温度。
- The generator shall be run without load for 30 minutes, to record the phase current, volt, frequency, stator and bearing temperature once at intervals of 10 minutes. 电机应空载试运行2小时,每隔30分钟记录一次相电流、绕组和轴承温度。
- In addition, the primary causation for the problem that phase current during reverse braking process out of control is a short loop by the back electromotive force. 同时,针对反接制动时电流无法控制的问题,该文指出反电动势短接回路的存在是造成再生电流无法控制的主要原因。
- Using a high power brushless DC motor as an example,phase current waveform of three kinds of commutation instances was shoed through computer simulation and real experiment. 以大功率永磁无刷直流电机为实例进行了仿真与样机试验验证,得到了三种换向情况下电动机相电流的仿真和试验结果。
- First, we substitute linear Hall sensor signal for general FOC which can directly produce various phase current commands in three phase stationary frames. 霍尔元件讯号由查表的机制可计算得到马达转子位置,进而能得到转速讯号,以达到速度控制的目的。
- This paper analyses the internal overvoltage and the phase current of grounded wye shunt capacitor bank when there are failures in it,and gives corresponding equations. 分析了中性点接地电容器组内部故障时的内部过电压和相电流变化,并给出了相应计算公式。
- The conclusion that the neuter current is possibly bigger than the phase current is obtained by analyzing neuter current problem of single phase D-C load. 分析了单相D-C类负荷的中线电流问题,得出中线电流可能大于相线电流的结论。
- The steam tug takes canal boats and barges in tow. 驳船后面拖着小艇和平底船。
- The principle of the switched reluctance generator (SRG) based on the description of the electromagnetic characteristic, analysis of the phase current waveform, the energy conversion and other aspects, etc. 从描述开关磁阻电机的电磁特性、相电流波形解析、机电能量转换关系等方面 ,讲述了开关磁阻电机作为发电运行的机理 ;
- This paper gives the fundamental equation of electric circuit of switched reluctance generator(SRG).The phase flux linkage,indutance and phase current of SRG are discussed based on unsaturated magnetic circuit. 给出了开关磁阻无刷发电机的相电路基本方程,分析了基于不饱和磁路条件的相磁链、相电感和相电流。
- Used the six-sequence fault component,the action of some phase selectors,including the phase current difference suddenly-change and the sequence current were analyzed in this paper. 本文利用六序故障分量法分析了零序负序电流选相元件和相电流差突变量选相元件在同杆双回线跨线故障下的动作行为。
- My car's broken down; will you give me a tow? 我的车抛锚了,能用你的车给我拖一拖吗?
- The truck used a cable to tow the car. 卡车用缆索拖曳汽车。
- Optimizing phase current waveforms of switch reluctance motors (SRM) to reduce torque ripple becomes a hotspot question for foreign and domestic researchers to deduce torque ripples of SRM. 优化开关磁阻电机的相电流波形来减小开关磁阻电机的转矩脉动是国内外学者争相研究的热点问题。
- My car broke down; can you give me a tow? 我的车拋锚了,你能让我把车挂在你的车後面拖行吗?
- The broken-down car was taken in tow by a lorry. 一辆卡车拉着一辆坏了的汽车。