1) DSVM
离散空间矢量脉宽调制
1.
In this paper, summary to the question that in the direct torque control(DTC) the ripples of torque, current and flux are large, switching frequency is low and not fixed, we develop one simple, effective method based on discrete space vector modulation(DSVM) by integrating method of voltage space vector with direct torque control.
针对异步电动机直接转矩控制系统存在转矩、电流和磁链脉动大、开关频率低、开关频率不固定等缺点,本文采用电压空间矢量法与直接转矩控制相结合的方法,提出一种直接转矩控制的离散空间矢量脉宽调制(DSVM)的方法。
2.
In this paper, summary to the question that in the direct torque control (DTC) the ripples of torque, current and flux are large, we develop one simple, effective method based on discrete space vector modulation (DSVM) by integrating method of voltage space vector with direct torque control.
针对异步电动机直接转矩控制系统存在转矩、电流和磁链脉动大等缺点,本文采用电压空间矢量法与直接转矩控制相结合的方法,提出一种直接转矩控制的离散空间矢量脉宽调制(DSVM)的方法。
2) space vector pulse width modulation
空间矢量脉宽调制
1.
Study of space vector pulse width modulation;
空间矢量脉宽调制的研究
2.
A fully digital frequency converter based on space vector pulse width modulation(SVPWM) control algorithm was presented,and the theory of SVPWM was discussed in brief.
提出了一种基于空间矢量的PWM(Pu lseW idth M odu lation)算法的全数字化变频器,对空间矢量脉宽调制的理论进行了简要的介绍。
3.
A novelty space vector pulse width modulation(SVPWM) technique for the two-phase inverter-fed asynchronous motors system is proposed, which can be widely used in the low or middle power level field.
研究了二相逆变器-异步电动机系统的空间矢量脉宽调制(SVPWM)控制技术。
3) SVPWM
空间矢量脉宽调制
1.
Study on SVPWM Technique of Three-phase Voltage Source Rectifier;
三相电压型整流器空间矢量脉宽调制研究
2.
A Simple SVPWM Algorithm for Multi-level Inverters;
多电平逆变器空间矢量脉宽调制的简化算法
3.
Research on a SVPWM Control Method for the Common-Mode Voltage Reduction of the Induction Motor Drive;
减小异步电机驱动系统共模电压的空间矢量脉宽调制控制方法研究
4) SVPWM
空间电压矢量脉宽调制
1.
Design and Implementation Using dSPACE of SVPWM Based on ANN;
基于人工神经网络的空间电压矢量脉宽调制设计及其实现
2.
On the basis of the principle of space vector pulse width modulation,introducing the formation of SVPWM in the cartesian coordinate system,experimenting on the actual inverter platform,and the implemention of SVPWM and results are given on TMS320LF2407A.
在分析空间电压矢量脉宽调制(SVPWM)原理的基础上,介绍了两相直角坐标系下生成SVPWM波的方法;在实际的交流电机调速平台上对SVPWM算法进行了实验,给出在TMS320LF2407A上的软件实现和结果。
3.
In today s AC servo system,the vector control theory and SVPWM technique make the AC motor can achieve the performance as good as DC motor.
在现代交流伺服系统中,矢量控制原理以及空间电压矢量脉宽调制(SVPWM)技术使得交流电机能够获得和直流电机相媲美的性能。
5) space vector pulse width modulation(SVPWM)
空间矢量脉宽调制
1.
The principle of space vector pulse width modulation(SVPWM) and two methods of its implementation based on digital signal processor(DSP) were introduced in detail,the structure and hardware of the system were designed,the results with the simulation waveforms of SVPWM based on Matlab/Simulink software were verified,and the waveforms which were from two different methods were analyzed.
提出了一种以TMS320F2812为控制核心的异步电机空间矢量脉宽调制(SVPWM)变频调速系统。
2.
The servo control system combines position loop,speed loop,current loop with algorithm of space vector pulse width modulation(SVPWM).
系统采用位置、速度和电流环三环控制,并结合空间矢量脉宽调制(SVPWM)算法。
3.
The principle and the engineering algorithm of space vector pulse width modulation(SVPWM) are introduced.
叙述了电压空间矢量脉宽调制技术的基本原理及工程算法,给出了该算法在TMS320F2812 DSP中的硬件和软件实现方法及试验结果,结合MATALB仿真,讨论分析了2种方式的优缺点。
6) pulse width modulation/space vector
脉宽调制/空间矢量
补充资料:交流脉宽调制变频调速
交流脉宽调制变频调速
AC motor speed control by PWM frequency converter
J一001旧mo一kuon tjooZh一b旧nPlnt旧osu交流脉宽调制变频调速(Ae motor speedeontrol by PWM frequeuey eonverter)在交流一直流一交流变频调速系统中,采用脉冲宽度调制(Pulse Width Modulation,PWM)实现交流电动机调速的技术。交流电动机的极对数一定时,其同步转速与供电电源频率成正比,改变供电电源频率就能调节交流电动机的转速(见变频调速)。脉冲宽度调制(简称脉宽调制)技术是1969年德国的A·舍龙(A·Schonung)等把通信系统中的调制技术应用于交流电动机调速中提出的,70年代后期得到了发展,80年代利用这种技术的调速控制已进人实用阶段。采用脉宽调制控制技术,是将载频信号与参考电压信号进行比较,发出调制信号控制变频器开关元件的通、断,使其输出端获得矩形脉冲波形,通过改变载频信号或参考电压信号的频率和幅值,可改变输出脉冲的宽度或幅度及频率,随之改变基波输出电压和频率,即改变交流电动机供电电源的电压和频率,实现交流电动机的速度调节。 PWM型变频器利用脉宽调制控制技术控制的变频器称PWM型变频器。对于一般的工业应用,PWM型变频器的整流器部分由二极管桥式整流器和LC滤波器构成,基波频率的输出电压是在逆变器内部以多脉冲脉宽调制方法进行控制的。脉宽调制方法有多种,为使输出电压接近正弦波形,多用正弦波脉宽调制方法。从控制方式上分为单极式和双极式两种。 (1)单极式正弦波脉宽调制。如图1(a)所示,图中分别为载频信号uc、参考电压信号ur的波形图和三相翰出电压中的a相电压姚的波形图。载频信号为单极式等腰三角形波,参考电压信号则为单极式正弦半波串,三相逆变器中的参考电压信号应互差1200。输出电压的大小和频率都由参考电压信号控制。当改变“r的大小时,输出电压的大小随之改变;当改变u,的频率时,输出电压的频率随之改变。其输出波形接近于正弦波形,称单极式正弦波脉宽调制。
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