求电力电子技术强人帮忙回答一下啊。 答案发给你了
帮忙翻译一下Shunt-series active power filter for rectifiers AC and DC sides.是有关电气方面的 你这个英语语句好像不完整,Shunt-series active power filter for rectifiers AC and DC sides翻译起来有歧义.Shunt-series active power filter意为“并联型有源电力滤波器”(注:按电路拓扑结构分类,电力有源滤波器可分为并联型、串联型、串并联型和混合型.)rectifiers意为“整流器”AC是交流电(alternating current)的简称DC是直流电(Direct Current,简称DC)的简称
最近听说负电阻
英语翻译 APF is a new dynamic harmonic and reactive current compensation device,with the traditional passive LC power filter compared with a fast response,the compensation effect,dynamic compensation and other advantages.Active power filter for power quality improvement is a developing trend in the future,which Shunt Active Power Filter dominant position.In China for research and development of active power filter is still in experimental stage,so this article on the most basic of shunt active power filter hardware circuit for a systematic theoretical and experimental research.This article describes the basic principles of APF and development in the world.Text to PM15RSH120 inverter chip-centric analysis of the shunt voltage active power filter works,DC power supply,harmonic current detection circuit,PWM driver circuit and other issues,and the shunt active power filter the design.Summarizes the current several mainstream harmonic detection circuit,the final selection is based on LA50-P 。
电路题判断作业 1:电路的参考点可以任意选取,参考点选得不同,电路中各点的电位是不变的.(错误)2:如果一个二端口网络内部含有独立源或受控源时,称其为有源二端口.(正确)3:电路的选择性越好,通频带就越窄.(正确)4:提高功率因数要保证加至负载上的电压和负载的有功功率不变.(错误)5:与理想电压源并联的支路对外可以开路等效.()6:理想电容元件消耗能量.(错误)7:理想变压器只能变压.(错误)8:交流电可通过变压器任意变换电流、电压,便于输送、分配和使用.(正确)9:计算功率时可以应用叠加原理.(正确)10:节点电压法适用于支路数较多但节点数较少的复杂电路.(正确)错误11:为了某种需要,可将电路中的某一段与电阻或变阻器并联,以起分流或调节电流的作用.(正确)12:电位的高低与电路的参考点无关.(错误)13:由若干元件组成但只有两个端钮与外部电源或其他电路相连接的电路称为二端网络或一端口网络.(正确)14:滤波器主要依据L和C的频率特性进行工作的.(错误)15:如果需要调节电路中的电流时,一般也可以在电路中串联一个变阻器来进行调节.(正确)
Actite Power Filter Correction的意思 有源电力滤波修正应该是active,在电力上就是“有源”的意思.具体是指什么,要请教一下这方面的专家.