In order to make more effective control of universal power quality controllers (UPQC), an outer loop model for the voltage loop in a three-phase three-wire UPQC is proposed in the paper.
为了对通用电能质量控制器直流侧电压进行更为有效的控制，提出一种用于三相三线通用电能质量控制器(UPQC)直流侧电压控制的外环模型。
In this paper, two types of main power circuits and their control methods are introduced when constructing active power filter in three phase four wire system.
本文介绍了在实现三相四线制有源电力滤波器时所采用的两种不同的主电路结构及其控制方法。
This paper offers a better theory basis for improving compensation capability of the three-phase four-wire APF controlled by hysteresis current control strategy.
该文的理论推导和所得结论为改善三相四线并联apf应用电流滞环控制时的性能提供了较好的理论基础。
This paper introduces the programming method for machining equal length three are hole on numerical control wire-machine tool by 3B format.
介绍了在数控线切割机床上加工等距型三弧孔的3B格式编程方法。
This paper introduces an active power filter device used for three phase four wire. The compensation principle and structure of main circuit and control circuit are given.
主要介绍用于三相四线制的有源电力滤波装置的研究工作，给出了系统的基本补偿原理、主电路及控制电路结构，并利用该装置进行了补偿实验。
Experimental results prove the proposed control method can compensate the harmonic, negative sequence and zero sequence current components in the three phase four wire.
实验结果表明，该装置可对三相四线制系统中的谐波、负序、零序等电流分量进行补偿。
The heavy duty level regulator is a compact three-wire float switch for highly accurate and repeatable single point level sensing and control applications.
重型级稳压器是一个小巧的三线高度精确和可重复的单一浮动开关点水平传感和控制应用。
The heavy duty level regulator is a compact three-wire float switch for highly accurate and repeatable single point level sensing and control applications.
重型级稳压器是一个小巧的三线高度精确和可重复的单一浮动开关点水平传感和控制应用。
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