介绍了三相开关磁阻电动机脉宽调制（PWM）控制系统及开关磁阻电动机（SRM）的基本结构与工作原理。
This paper mainly discusses a PWM control system for switched resistant motor (SRM) driving system and the base structure and working principle of SRM are introduced.
通过二、三值逻辑开关函数间的转换，系统地描述了三相CSR三值逻辑PWM信号发生中的状态切换；
A systematic description of the state switching in trilogic PWM signal generation of three-phase CSR by using the conversion between bilogic and trilogic switching functions.
介绍了在三相三开关高功率因数变换器中应用复杂可编程逻辑器件(CPLD)实现逻辑控制部分的方案。
This paper introduces a scheme in which a complex programmable logic device (CPLD) is used in the three phase three pole switch high rating factor convertor to realize logic control.
对三相电容器的暂态过程进行了研究，提出采用接触器和小电流晶闸管组成混合开关，实现了合闸时无冲击电流及分断时无电弧。
This paper researches on three phase capacitor transients, presents a combined switch constructed of contactor and low current thyristors to realize non surge close and non arcing break.
特别是三相四线制有源电力滤波器硬件结构简单，只有三组开关器件。
Especially three-phase four-wire active power filter hardware has simple structure with only three group switch device.
提出了一种新型三相逆变器输出滤波器，它能有效地减少输出电压和电流中的开关谐波分量。
A new inverter output filter is presented. It can reduce efficiently the output voltage and current switching harmonic.
考虑到系统功率较大，三相桥式功率变换器的每个开关器件均采用四个MOS管并联的结构。
For high power system, every switch of three-phase inverter is actually made up of four MOSFETs in Parallel.
谐振直流环可以实现三相变流器的软开关控制。
The three phase converter soft switch control can be realized by avail of resonant DC link.
建立了三相电压型PWM整流器电流控制数学模型，输入电流在静止坐标系下实现了固定开关频率的解耦控制。
In this paper, a current control mathematical model is established with fixed switching frequency for three-phase pulse width modulated (PWM) converter.
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。
Zero current transition (ZCT) topology of the single switch three phase boost power factor correction (PFC) rectifier is proposed.
高效发电机。一种发电机系统包括三相ac电机和应用低导通电阻MOSFET开关的有源整流器电桥，用于将来自电机的AC电流转换为DC电流。
A generator system that includes a three-phase ac machine and an active rectifier bridge employing low on-resistance MOSFET switches for converting the ac current from the machine to a DC current.
电力变换器主电路部（3），其根据该脉冲宽度调制波对开关元件进行驱动，将直流电压转换为三相交流电压；
A power converter circuit (3) drives a switching device by the pulse-width modulated wave for converting a direct current into the three phase alternating current.
基于三相自耦变压器和由可控器件IGBT构成的双向开关实现的新型三相vsg，可以方便地控制跌落类型、跌落持续时间、跌落深度和跌落相位。
A novel three-phase VSG is built by three-phase autotransformer and IGBT based bidirectional switch, can easily control the types of voltage sags, sag duration, sag depth and sag phase.
在三相逆变器驱动电机系统中，开关器件的PWM波导致了轴电压和轴承电流的产生，使电机受到危害，降低了电机的使用寿命。
In the three-phase inverter-fed motor drives, the switching devices'PWM waves generate shaft voltage and bearing current, and these make the motor's life shorter.
将二极管箝位式三电平逆变器应用于三相并联有源滤波器以降低开关管应力。
The diode neutral point clamped three-level inverter for three-phase shunt active power filter is applied to reduce the switch stress.
实验结果证明了该电路能实现三相逆变器开关管的软开关、改善输出波形质量。
The experimental results verify that the circuit mentioned above can realize the soft-switching, improve the quality of output wave.
三相电源的接入必须按照图示的相序关系，相序错位将导之限位开关不能正确限位的严重后果。
Three-phase power supply phase sequence access must follow the relationship shown, phase sequence dislocation will guide the limit switch not properly limit the serious consequences.
本文是在云南开关厂开发的新产品LW36- 126(三相sf6自能式气体断路器)配用的弹簧操动机构的设计工作的基础上撰写的。
This paper is finished on the basis of accomplishing the design of spring operating mechanism which can coincides with LW36-126 three-phase SF6 circuit breaker designed by Yunnan. Switches Factory.
介绍了新型三相管型开关的特殊结构，指出了鼓型开关结构中的不足之处。
The special structure of a new three-phase pipe-type tap changer is introduced. The weaknesses in the structure of drum-type tap changer are given.
本系统还包括开关控制电路，用于与三相电流同步切换MOSFET开关。
The system also includes a switch control circuit to switch the MOSFET switches in synchronization with the three-phase current flow.
在分析三相四桥臂逆变器工作模态的基础上，引入开关状态函数建立了四桥臂逆变器系统离散的、非线性的数学模型。
A discrete and nonlinear mathematical model of three-phase four-leg inverter is built up with the switch state functions based on the analysis of its working modes.
基于单片机智能化和开关电源高效率的特点，研制出一种以xc164单片机作为核心控制模块的智能型三相正弦波变频电源。
A new intelligent three-phase sinusoidal variable-frequency power based on XC164 as its core module is presented. The design of hardware and software about the system are discussed.
介绍了三相电压型PWM整流器直接功率控制(DPC)系统的组成与原理，分析了开关表的形成机理。
The article introduces the direct power control (DPC) principle and constitution for three-phase boost - type PWM rectifiers and analyses switching table.
针对三相六拍两两导通且下桥臂开关管调制方式提出了新型电流检测方案。
A new current detection method is introduced aimed at lower bridge arm modulation when motor is operating at six states.
指出三相零电压开关在纯阻性电路中应用，是它的一种特殊形式。
It is pointed out that the 3-phase zero voltage switch used in the pure resistance circuits is a special case of the 3-phase SCR switches without transients.
对于控制装置故障，主要表现为电源缺相，而导致电源缺相的子事件主要有：可控硅失效、可控硅触发电路失效、三相电源开关失效、电感线圈失效；
One is power failure, mainly on AC phase-loss consisting of SCR failure, the failure of SCR's trigger circuit , there phases AC switches'failure and the failure of CRDM coil;
大功率开关电源一般采用三相二极管整流桥作为前级整流电路。
The switching power supply usually uses the diodes rectifier as the front converter.
适用于户内312kv三相交流50（60）hz的电力系统内和各型号高压开关柜配套使用，亦可作为高压电器设备检修时接地用。
Apply to indoor 312 kv three-phase ac 50 (60) hz power system in various models and high-voltage switchgear supporting the use, can be as high voltage apparatus equipment maintenance with grounding.
适用于户内312kv三相交流50（60）hz的电力系统内和各型号高压开关柜配套使用，亦可作为高压电器设备检修时接地用。
Apply to indoor 312 kv three-phase ac 50 (60) hz power system in various models and high-voltage switchgear supporting the use, can be as high voltage apparatus equipment maintenance with grounding.
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