1) three-phase seven-wire system
三相七线制
2) three-phase three-wire
三相三线制
1.
To break the power limit of APF(Active Power Filter) caused by the smaller capability of switching devices,the three-phase three-wire three-level APF based on vector mode one-cycle control is presented.
为克服由于开关器件容量小而导致有源电力滤波器(APF)功率受到限制的问题,提出了一种基于矢量模式单周控制的三相三线制三电平APF,APF主电路采用二极管箝位型三电平拓扑结构,控制策略采用0°～360°区间矢量模式单周控制,以减小APF开关应力和损耗,实现用低耐压开关器件提高APF功率等级。
2.
In order to reduce the switching stress and loss of APF,and to enhance the APF power rating for lower pressure switch devices,this paper presents a three-phase three-wire three-level APF based on vector mode one-cycle control during 30°～390°.
为了减小有源电力滤波器(APF)的开关应力和损耗,便于实现用低耐压开关器件提高APF功率等级,提出了一种基于30°～390°区间矢量模式单周控制三相三线制三电平APF。
3.
A three-phase three-wire active power filter(APF),controlled by one cycle controller is devised.
设计了一种单周控制的三相三线制有源电力滤波器,该滤波器工作时无需检测三相负载电流和三相输入电压,无需进行繁琐的参考电流、无功电流和谐波电流计算;只需检测两相电源电流和直流侧电容电压,通过简单计算就可直接求出每个开关周期内各开关的占空比。
3) three phase three wire (△) system
三相三线(△)制
4) Panax Notoginseng
三七制剂
1.
Panax Notoginseng with Training on the Early Rehabilitation of Acute Cerebral Infarction Patients with BDNF,NGF Expression and Recovery of Neurological Function
三七制剂配合早期康复训练对急性脑梗死患者血清BDNF、NGF的表达及神经功能的影响
5) Three-phase four-wire
三相四线制
1.
Harmonic detection based on equal power method in three-phase four-wire system;
三相四线制系统中基于等功率法的谐波检测
2.
Study on one-cycle controlled three-phase four-wire active power filter with four-leg;
基于单周控制的四桥臂三相四线制有源电力滤波器的研究
3.
Modeling and simulating of new three-phase four-wire cascade control system;
新型三相四线制串级调速系统的建模与仿真
6) three-phase four-wire system
三相四线制
1.
Comparison of harmonic detection in three-phase four-wire system between p-q-r method and FBD method;
p-q-r法与FBD法在三相四线制系统谐波电流检测中的对比
2.
Discussion on Non-earthing Neutral Point of Power Line for Low Voltage Three-phase Four-wire System;
低压三相四线制中性点不接地之浅见
3.
This paper analyzes the cause and harmfulness of the neutral maintenance fault in three-phase four-wire system.
分析了一起三相四线制配电线路中低压零线断线故障的产生原因及其危害性,指出在民用低压配电线路设计、施工及维修时应对三相四线制配电线路中低压零线断线故障给予重视。
补充资料：三线态-三线态能量转移
分子式：
CAS号：
性质：由处于电子激发三线态的能量给体，通过能量转移产生一个处于三线态的电子激发态受体的过程。
CAS号：
性质：由处于电子激发三线态的能量给体，通过能量转移产生一个处于三线态的电子激发态受体的过程。
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