变频

变频技术在B1包装机组改造中的应用

An Application of Frequency Conversion Technique in Reform of Packer Set B1

然后阐述了OFDM技术原理，重点讨论了基带信号处理和变频两部分，对具体细节做了详细的说明。

Then the principle of OFDM technology is explained and the baseband signal process and the frequency conversion are discussed primarily with some detail problems explained .

PLC和变频调速技术在静动叶结合型旋转式粗粉分离器上的应用

Application of PLC and Inverter in Classifier with Rotating and Static Vanes

变频调速器和PLC在龙门刨床上的应用

Inverter and PLC Applied to Improvement of Double Housing Planer

铸造喂线PLC变频调速系统的研制

Development of PLC Frequency Control System for Wire-feeding in Casting

利用PLC控制电机远程变频调速

Remote Speed Control of Motor System with PLC and Variable Frequency Operation

热水锅炉供暖系统PID变频定压技术研究

The PID frequency-changing and voltage-stabilizing technology in a hot water heating system

PLC及变频软起动器在过钢车系统的应用

Application of PLC alternating frequencies soft controller in van system in steel making

国外AC变频电驱动石油钻机的现状及发展

Status quo and development of overseas petroleum driling rig with AC variable-frequency electric

PLC编程的变频电机在锅炉给粉控制系统中的应用

Application of PLC Programmed Frequency Converter Motor in Coal Feeding Control System of Boiler

PLC及变频调速技术在络筒机防叠控制中的应用

Application of Inverter and PLC in Winding Machine

介绍一种基于DSP的光伏水泵变频控制系统。

This paper presents a PWM inverter based on DSP for PV pumping system .

基于DSP的空间电压矢量控制的变频系统设计

Frequency Convert System of SVPWM Based on DSP

电压矢量等效三电平PWM变频调速原理

Three-potential Equivalent Average Voltage Vector PWM Variable Frequency Speed Regulation Principle

采用新型PWM控制的变频调速系统

The VVVF System Controlled by a New Type of PWM Method

单片机与专用芯片结合的PWM变频调速系统

The PWM Inverter Speed Regulator System by Microcontroller with Special IC Chip

PLC在矿井局部通风机变频调速系统中的应用

The application of PLC to the variable frequency and speed adjusting system of mine local fan ventilation

PLC在变频调速多泵并联供水系统中的应用

Application of PLC in the Supplying Water System Made up of Parallel-connected Pumps with Frequency Conversion Timing

变频调速PLC群控系统在消防供水系统中的应用

The Application of Frequency Control PLC Distributed Control System in the Water Supply System of Fire Control

本文介绍了一种基于PLC和变频调速技术的供暖锅炉控制系统的设计与实现方法。

This paper introduced the design and accomplishment of the boiler control system based on PLC and VVVF .

高压变频系统的GPRS远程监控的实现

The Realization of Remote Control of HV Inverter with GPRS

变频空调器用全数字化空间矢量PWM逆变器研究

Study of a Digital Space - vector PWM Inverter Used for Frequence - variable Air-conditioner

预测控制与变频控制技术在DCS中的应用和研究

Study on Application of Predictive Control and Variable Frequency Speed-adjusting in Distributed Control System

IGBT中压变频装置及其在安钢高线的应用

IGBT Medium-voltage Converter & Application in Anyang Wire and Rod Plant

采用变频与PLC技术设计装卸矫直进式拉丝机变频调速过程控制系统

Design of grabbing gantry crane with frequency converter and PLC Velocity Modulation System Use Frequency Converter on Straight-line Drawing Machine

SIEMENS变频调速实验装置的研制与应用

Development and Application of SIEMENS Master Driver 's Experiment Set

采用单片机控制交流电机PWM变频调速，可实现全数字化控制。

Using alternating dynamotor PWM frequency conversion governing controlled by single chip computer can realize digitized control .

LMS算法的自适应逆控制变频调速系统

Self adaptive inverse control variable frequency speed control system based on LMS algorithm

DDS的杂散抑制技术及其在频率捷变频雷达中的应用

Technique to Suppress Spurious Signals of DDS and its Application in Frequency Agile Radar

PROFIBUS技术在变频驱动控制系统中的应用

The Application of Profibus Technology in Free Frequency Drive Control System