zero power phase的意思|示意

Zero current transition (ZCT) topology of the single switch three phase boost power factor correction (PFC) rectifier is proposed.

提出了一种零电流开关结构的单开关管的三相升压功率因数校正整流器。

This paper describes a microcomputer compound control system for single phase resistance-heated furnace based on power and temperature regulations with uniform distribution and zero trigger.

本文介绍一个单相电阻炉均布式零触发调功调温的微机复合控制系统。

In order to overcome the disadvantage of the single phase passing zero control in the reactive power compensation device, fuzzy control is put forward in this paper.

针对目前无功补偿装置中采用的单相过零投切方法存在的缺点，本文提出采用模糊控制的方法。

Secondly, on the assumption that the phase error on the aperture led by the random surface error obeys the Gaussian distribution with zero mean, the expression of the average power pattern is deduced.

然后在设定由随机表面误差引入的口径相位误差服从均值为零的正态分布的条件下，推导了天线平均功率方向图的计算公式。

So it is necessary to find some ways for the fault location detection. In the phase-to-earth fault power system, the value of zero-sequence impedance is directly related to the earth conductivity.

这样就降低了供电可靠性，故找出一种新思路使其能更准确有效地判断故障点具有重要意义。