三相交流电路

KCL和KVL可推广应用到由不同元件所构成的复杂电路计算中，亦可推广应用到任何变化的电流和电压的计算甚至是三相交流电路的计算之中。

KCL & KVL can be applied to complex circuit counting made up of different components , as well as to any changing electric current and voltage , even to three phase alternating current .

三相交流电路中瞬时功率的分析和研究

Analysis and Study on Instantaneous Power of Three-phase AC Circuit

三相交流电路实验的改进

Improvement of the experiment of three phase AC - circuit

三相交流电路测量的虚拟实验开发与设计三相交流同步发电机

The development and design of virtual experiment for measurement of three-phase AC circuit

三相不对称交流电路的求解

Solution to 3-phase Asymmetric AC Circuit

设计共分为两部分，三相交流逆变电路部分和系统使用记录存储部分。

This design is divided into two parts , three-phase ac inverter circuit system and systems use record store circuit . 1 .

用功率法求解三相不对称交流电路的线电流及中线电流，可以避免复杂的相量运算，使运算过程方便快捷。

The calculation of phase wire current neutral wire current of 3-phase asymmetric AC circuit through the power of electric load can avoid the complex phasor algorithm and make the calculation simple fast .

三相交流逆变电路部分：对各个逆变电路结构进行了分析，根据系统需要确定逆变电路类型的选择和控制信号的实现方式。

Three-phase AC inverter circuit section : The inverter circuit structure is analyzed to determine the choice of the type of inverter circuit and control signals are implemented according to the needs of the system .

在电除尘三相交流调压电路调试平台上完成了实验，实验结果可看出，设计的参数自整定模糊PID控制器性能良好。

Experiment was completed in the debugging platform of electrostatic precipitator power supply , verifying the good effect of the designed self-tuning fuzzy PID controller from the results .

一种晶闸管全控整流式三相交流调压电路

Three-phase AC voltage-regulating circuit with thyristor full-wave controlled rectifier

一种三相交流调压电路&三相Y接对称性负载脉宽调压电路

A three-phase AC adjustable-voltage circuit & pulse-width adjustable-voltage circuit with three-phase symmetrical Y connection

基于上述三相交流电弧炉电路模型，分析了电流不对称和阻抗不对称对电弧功率的影响，并讨论了交流电弧炉三相电参数互相影响的复杂性。

The influences of the asymmetry of current and impedance on the arc voltage and power were analyzed , and the investigation complexity was also discussed .

论文首先对三相交流调压电路及基于三相调压电路的三相交流异步电动机的软起动方法进行了分析。

The three phases voltage regulator circuits and three phases asynchronous motor soft starter method based on three phases voltage regulator circuits is analyzed at first .

利用双CPU方式的PWM消谐三相交流调压及电路实现

Threephase AC voltage regulation based on phase width modulation and on dual CPU scheme and circuit realization

军事和工业供电系统多采用三相交流电源，三相交流电路系统中有很多电机工作。

The tri-phase AC power is used by military and industry supply system , where a lot of motors work .

最后，设计了测量三相电路有功功率的实验，并对实验的基本原理进行了相量分析。利用拉普拉斯变换方法分析三相交流电路

And the wiring diagrams of the two methods are put forward . Finally , we design the experiment for measuring the active power of the triphase circuit and analysis the fundamental of the experiment by the phasor chart . APPLYING TRIPHASE AC - CIRCUIT WITH LAPLACE TRANSFORMATION