In this paper,the cause of formation and harm of variation of neutral-point potential of neutral-point clamped three-level inverter have been discussed,and the current primary strategies of neutral-point potential balancing control have also been analyzed and generalized.
论述了中点钳位型三电平逆变器中点电位波动的成因及危害,分析概括了目前主要的中点电位平衡控制策略,并重点叙述了一种简单的基于三相正弦脉宽调制(SPWM)控制策略的中点电位的控制方法。
Modeling and simulation of STATCOM systembased on 3-level NPC inverter using dynamic phasors;
中点钳位式三电平STATCOM的动态相量建模与仿真
This paper analyzes the controlling mode of NPC(Neutral Point Clamped)high voltage converter and gives the calculating method of PWM vector controlling.
本文对典型的电压型高压变频器———中性点钳位式 (NPC)控制方法进行了分析 ,介绍了PWM矢量控制算法 ,提出了NPC式电压型高压变频器的应用特点。
Loss Characteristics for NPC Three-Level Inverter
中点钳位型三电平逆变器脉宽调制时的损耗特性
One that gags, as a piece of metal used to keep the core in position in a foundry mold.
钳口之物钳制用具，如用于保持模心在铸造模型中位置的一片金属
An actively clamped low ripple resonant DC link inverter with medium power is introduced.
介绍了一种中等容量有源钳位谐振直流环节逆变器。
Venier caliper, metallic ruler, measuring tape, square, center punch, felt point marker pen.
卡钳，金属的直尺，卷尺，曲尺，中心冲,感觉测点作记号钢笔。
Collocated with 2 meters long push gun and pinch welder, and can go deeply.
配置2米长手持点焊枪和焊钳，能深入焊件内部及特殊部位进行焊接。
Invert the differential case in the vise.
在虎钳中翻转差速箱。
Either of two opposed hinged parts in a mechanical device.
钳口机械装置中夹钳相对的两个部分中的一个
pliers with a joint adjustable to two positions in order to increase the opening of the jaws.
有一个可以双向可调的接点以增加钳口的开口度的钳子。
pliers that can be locked in place.
可以在合适的位置锁定的钳子。
Research on ZVZCS Converter with Passive Clamp Network;
具有无源钳位网络的ZVZCS变换器研究
Research on Active Clamp ZVS-PWM Forward Converter;
有源钳位ZVS-PWM正激变换器的研究
ZVZCS converter with passive clamp network
具有无源钳位网络的ZVZCS变换器
Study on characteristics of asymmetric occlusive pliers cut marks;
非对等咬合钳具形成痕迹特点的研究
In that vise he was borne across the house and deposited in his own seat, under a peppering fire of giggles from the whole school.
就这样，在一片尖刻的咯咯笑声中他被钳着耳朵，从教室这边拉到那边自己的座位上。
This simple arrangement requires that the distance separating the roller nips must be comparable with the length of the longest fiber in the sliver.
这种简单的装置要求罗拉钳口夹持点之间的距离必须相当于银子中最长纤维长度。
Investigate application of simple and double leaf forceps and vacuum extraction in cesarean delivery
探讨单叶产钳、双叶产钳和胎头吸引术在剖宫产中的应用
Joints are more easily opened, when one end is secured in a vise.
若把一端夹在虎头钳中，则较容易打开。
The role of Analogy in the Study of Styloidectome;
类比推理在研制茎突切除钳中的应用