三相电路的分析比单相电路难不了多少。
The analysis of three-phase circuits is little more difficult than that of single-phase circuit.
鉴于此，三相电路的研究分析并不比单相单路研究难多少。
Viewed in this light, it will be found that the analysis of three-phase circuit is little more difficult than that of single-phase circuits.
电力有源滤波器能动态补偿不对称三相电路的畸变电流、负序电流分量。
Active power filter can compensate current components which include distortion and negative sequence current components when it is used in unbalanced three-phase circuit.
进行智能交流接触器零电流分断的研究，并实现了三相电路的微电弧能量分断控制。
Research on the zero-current-breaking control (ZCBC) for intelligent ac contactor and realize the micro-arc-energy breaking control in three-phase circuit.
利用三维空间矢量，提出了一种新型的无需坐标变换的三相电路畸变电流检测方法。
Using three-dimensional space vectors, this paper describes a simple method for detecting the distorted current without any coordinate transformation.
从三相电路的综合矢量出发，提出了一种适用性广、算法简单的谐波及无功电流检测方法。
A detection approach of harmonics and reactive currents based on the integrated vector in 3 - phase circuit is proposed, which has the advantage of brief arithmetic and wide applications.
从物理和数学的角度，对单相电路、三相电路瞬时有功功率和瞬时无功功率的概念进行了剖析。
From physical and mathematical points of view, this paper analyses the nature of instantaneous active and reactive power.
首先介绍了现有教材中已给出的三相电路功率的测量方法，进而提出了三相四线制三相电路功率测量的另三种接线方法。
Firstly, the existing methods of the three phase power measurement in the teaching materials are introduced. And then another three connection methods are suggested for three phase four wire circuits.
在三相功率因数校正电路中，全解耦型电路由于其输入功率大，电气性能较好等优势特别适用于大功率场合。
Among the three-phase power-factor correction circuits, the full decoupling circuit is especially suitable for high power fields because of its high input power and good electrical performance.
利用等效电路，分析了三相异步电动机在不对称电压下的性能和对电机的危害。
By applying equivalent circuits, this paper has analyzed three-phase asynchronous motor property and the harm to generator under asymmetrical voltage.
本文尝试用感应电动机的T型等效电路和能量比法，分析三相感应电机的工作特性。
The author tries to analyze the operational characteristics of three phase induction motor using the T-type equivalent circuit of induction motor and the energy ratio method.
通过模拟试验证明，三相整流电路交流侧电流中的谐波含量由原来约30%下降到约10%。
It can be seen from model experiment that the Total Harmonic Distortion (THD) of the current in the three-phase rectification circuit can be reduced from 30% to about 10%.
在系统结构的实现上，该装置的主电路采用基于IGBT的智能模块IPM构成三相桥三电平变流器；
On the structure of system, the three-level converter of three phase bridge of the equipment in main circuit is built with IPM module based on IGBT, and its controller is made up of double CPU.
以PM 75cla120为例，介绍IPM结构、应用电路设计和在组合式三相逆变器中的应用。
Taking PM75CLA120 as an example introduces the structure of IPM, the applied circuit design of IPM and the use of IPM in modular three-phase inverter.
本文介绍三相混合式步进电动机的驱动控制电路。
This paper introduces the controlling and drive circuits of three phase hybrid stepping motor.
它以SA 4828作为SPWM信号发生器，经过驱动电路控制IPM模块，产生三相变频电源。
The SA4828 used as SPWM signal generator controls the IPM via driver circuits to produce variable frequency power supply.
简要介绍采用三相pwm产生器sA 8282研制的三相静止逆变器及其电路硬件、软件设计方案。
This paper presents a design precept of static inverter using three phase PWM generator SA8282 and shows the programmes for designing hardware and software of the circuit.
最终混合编程检测软件、数据采集卡、电压互感器电路共同完成对电网三相电压波动和闪变的检测。
Finally, combining programming measurement software together with data-requiring card and potential transformer circuit complete the measurement of three-phase voltage fluctuation and flicker.
应用CD4098单稳态触发器组成了三相过零触发电路，达到了较为理想的调功效果。
The three-phase zero-detection trigger made up of CD4098 single side stale trigger can produce ideal effect.
介绍了一种由80c196 KC单片机构成的三相全控桥式整流电路的数字触发器。
The paper describes a digital trigger for three-phase fully-controlled bridge, using a single chip microprocessor 80c196kc.
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.
本文讨论三相单向换能器等效电路模型和制作调整。
An equivalent circuit model of these 3-phase unidirectional transducers is discussed as well as their adjustment and fabrication.
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。
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.
文章介绍了井下陀螺三相电源、框架陀螺控制电路、方位采集电路的设计和通用短接接口的设计。
Designs of the three-phase power supply, gyro-controlling circuit, azimuth-sampling circuit, and the interface with other tools are described.
简要叙述单片机三相信号发生器的设计思想和开发方法，并对系统的功能，技术指标，硬件电路，软件设计，及使用方法作了说明。
A three-phase signal source generator based on single-chip microprocessor is presented in this paper…The function , technical specification , hardware and software are explained in detail.
平台以TMS320F2812为核心控制器，以EPM7128实现PWM信号触发，以IR2130为驱动芯片构建了三相全桥逆变电路。
The platform is designed with TMS320F2812 as its core and realizes PWM signal trigger with EPM7128. The three-phase full-bridge circuit is constructed with IR2130.
对于PLC控制器，低电压控制电路和三相电源要有必要的了解。
Understanding of PLC controllers, low voltage control circuits and three-phase power necessary.
介绍了以TC787专用集成电路为核心的三相六脉冲晶闸管触发板的设计和调试，对TC787专用集成电路的性能特点、工作原理和使用注意事项也作了简要介绍。
This article describes the design and debugging of three phase and six pulse thyristor trigger board based on TC787. The performance and application information of TC787 are also mentioned.
介绍了在三相四线制供电系统中，中线的作用，断线的危害，以及一种简单可靠的断线保护电路。
The paper introduced the effect of neutral wire the harm of open circuit and a kind of simple credible open circuit protection method.
介绍了在三相四线制供电系统中，中线的作用，断线的危害，以及一种简单可靠的断线保护电路。
The paper introduced the effect of neutral wire the harm of open circuit and a kind of simple credible open circuit protection method.
应用推荐