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modelesation and simulation of DSIM used pulse widthe modulation (PWM) for a control of inverter two level
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labview产生PWM波形 更好的控制逆变电路-Labview generates PWM waveform better control of the inverter circuit
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by ankush laddha。This system is active front end rectifier. It keeps the DC link at reference value, 400V in this case, even if load is suddenly changes. Also power factor is controllable so can act as STATCOM too. Control is based on synchronous fra
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本文设计了1.SMW双馈型风机变频器的整体硬件电路,满足风机整体工作的稳定
性和高效率"为实现LVRT功能,设计了一种新的CROWBAR电路,并对电路的控制
电路做了改进"研究了1.SMW双馈型风机变频器系统的控制策略,转子侧变换器采用
定子磁链定向矢量控制技术,网侧PWM变换器采用电网电压定向矢量控制技术,构建
了电流内环!电压外环的双闭环PI控制系统,导出了采用转子有功电流和无功电流独
立解祸来控制有功功率和无功功率的策略-This pape
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这是一个运用电流滞环PWM控制的逆变器模型。通过改变直流侧的电压,以及滞环宽度观察变换效果。-This is a use of current hysteresis PWM control model of the inverter. By changing the voltage of the dc side, and to observe the effect transformation hysteresis width.
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This circuit uses the AC7 block of SimPowerSystems™ library. It models a brushless DC motor drive with a braking chopper for a 3HP motor.The permanent magnet synchronous motor (with trapezoidal back-EMF) is fed by a PWM voltage source inverter,
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SVPWM的主要思想是以三相对称正弦波电压供电时三相对称电动机定子理想磁链圆为参考标准,以三相逆变器不同开关模式作适当的切换,从而形成PWM波,以所形成的实际磁链矢量来追踪其准确磁链圆。传统的SPWM方法从电源的角度出发,以生成一个可调频调压的正弦波电源,而SVPWM方法将逆变系统和异步电机看作一个整体来考虑,模型比较简单,也便于微处理器的实时控制。-The source point of view, to generate a frequency modulated voltage sine
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2016年电赛电源组获区二的源程序,mps430作为单片机和12864为显示,控制pwm波来实现电源的逆变,可通过按键控制pwm波,采用pid自适应的控制,完整可用。同时包含其可用的模板,希望能更深入学习。-2016 Race electrical power source group is eligible for the two regions, as MPS430 12864 microcontroller and a display control to achieve pwm wave
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我们设计的异步电机变频调速器以TMS320F28035芯片为控制核心,通过输出三相PWM波控制智能功率模块IPM驱动三相异步电机。我们使用空间矢量SVPWM算法,并对其进行了优化。采用异步电机无传感器测速算法省去了昂贵的光电编码器,大大节省了成本。同时开创性的研发了自动根据运行环境调节的自适应变频算法,使我们的变频调速器可以在电网条件恶劣的乡村山区工作,由此该变频器已被一家民用水泵生产企业预订。(We design the asynchronous motor frequency convers
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matlab coding for pulse width modulation for inverter fed induction motor control
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基于lc滤波器的pwm逆变器虚拟同步机控制(Inverter synchronizer control)
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基于LC滤波器pwm虚拟同步发电机的控制(Inverter synchronizer control)
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AC motor drives are widely used to control the speed
of conveyor systems, blower speeds, pump speeds, machine tool
speeds, and other applications that require variable speed with
variable torque. The complete system consists of an ac voltage input
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本文建立了一个基于直接转矩控制的异步电机变频调速系统。系统采用了两个滞环控制器,分别比较定子给定磁链与实际磁链、给定转矩与实际转矩的差值,然后根据这两个差值查询逆变器电压矢量开关表得到施加在异步电动机定子绕组上的电压矢量,然后通过脉冲宽度调制(Pulse Width Modulation,PWM)逆变器控制异步电动机。(An asynchronous motor variable frequency speed regulation system based on direct torque c
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逆变焊机的数字化控制系统,包括PI电流控制,还有PWM输出(Digital control system of inverter welder)
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