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电流跟踪型pwm
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     This paper introduces a kind of high subdivision drive system based on high-speed MCU ATtiny2313 for three-phase hybrid step motor control. The requirements of the MCU to achieve the performances of high tracking frequency,high subdivision and the method of software-programming are presented.
     介绍了一种基于ATtiny2313高速单片机的三相混合式步进电动机高细分、高跟踪频率驱动系统对单片机的要求及软件编制方法,介绍了采用电流跟踪型PWM控制方式下,系统幅值可设定的D/A转换电路、三角波比较控制方式的偏差PWM发生电路、主电路及电流反馈电路的设计要点。
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     Then base on the current tracing PWM rectifier, a new structure is proposed by introducing a power factor adjuster in to realization power factor variable PWM rectifier unit. Computer simulation is the main technique method in this design work.
     在此基础上提出了功率因数闭环的控制思路,并设计了功率因数闭环控制的PWM整流器方案,即在电流跟踪型PWM整流器的基础上引入功率因数调节器,实现PWM整流器的功率因数闭环控制。
短句来源
     Then the calculating circuit of closed loop compensating current for the power factor corrector is developed on the basis of Tentis n phase instantaneous power theory. A paralleled power factor corrector is designed and implemented with an improved adaptive PWM control strategy of current tracking to control the 3 phase voltage fed inverter. Experimental results have verified the feasibility of the power factor corrector.
     在Tenti的瞬时功率理论基础上,设计了一种用于功率因数校正装置的补偿电流参考信号检测电路,并在实验室设计安装了1台小容量并联型功率因数校正装置,其主回路采用电压型三相DC-AC逆变器,并采用改进的自适应电流跟踪型PWM控制电路.实验结果表明,该装置达到了很好的补偿效果,验证了设计的正确性
短句来源
     Introduces a varying frequency AC speed control system of new vector conversion control. The construction of system was desinged in which 80C196 microcontroller is used as main controller. The latest inverter PWM of current track type is adopted in the system,that is,two three-stage hysteresis comparers are used as current controller to control DC component of stator current vector(magnetic field orientation).
     介绍了一种新型矢量变换控制的交流变频调速系统,设计了以80C196单片机为主控制器的系统结构.本系统采用最新发展的电流跟踪型PWM逆变器,即采用两个三级磁滞比较器作为电流控制器,用来控制定子电流矢量直流(磁场定向)分量,实现了高性能的恒转矩调速和恒功率调速.
短句来源
     According to wave analysis and theoretical calculation of PWM inverter with delay-loop current tracing, this paper proposes a frequency control system with current tracing SPWM.
     通过对滞环电流跟踪型PWM逆变器的波形分析和理论计算,提出一种固定开关频率型电流跟踪SPWM变频调速系统。
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  相似匹配句对
     Current-tracking AC-AC Cycloconverter of Resonant PWM Technique
     电流跟踪谐振式PWM交-交变频器
短句来源
     OPTIMAL SWITCH STRATEGY OF A CURRENT CONTROL PWM INVERTER WITH SQUARE WAVEFORM
     电流跟踪矩形波PWM逆变器的优化开关策略
短句来源
     Fuzzy Current Traced PWM Technology
     模糊电流追踪PWM技术
短句来源
     A New Type of Current-followed SPWM Inverter
     一种新电流跟踪SPWM逆变器
短句来源
     A Current-Following SPWM Inverter with Delay-Loop Control
     滞环控制的电流跟踪SPWM逆变器
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urrent PWM control is a key problem in a BLDCM AC servo system, and the current hysterisis PWM method is widely adopted. The fixed frequency sample PWM method is put forward in this paper together with the theoretical analysis about their switch strategy. The first method has a nonlinear model. It is difficult to control switch frequency by changing hysterisis band. The latter has a linear model. It is easy to control switch frequency by changing sample frequency. The theoretical analysis has been proved through...

urrent PWM control is a key problem in a BLDCM AC servo system, and the current hysterisis PWM method is widely adopted. The fixed frequency sample PWM method is put forward in this paper together with the theoretical analysis about their switch strategy. The first method has a nonlinear model. It is difficult to control switch frequency by changing hysterisis band. The latter has a linear model. It is easy to control switch frequency by changing sample frequency. The theoretical analysis has been proved through experiments, and the result is satisfactory.

电流PWM控制是无刷直流机(BLDCM)交流伺服系统的关键,常用电流跟踪型PWM方式.本文提出恒频采样电流跟踪型PWM方式,并对其开关策略进行了理论分析.前者为非线性的,环宽的准确控制较困难;后者为线性的,采样频率的控制则较容易.在实验系统上验证了理论分析的正确性,效果令人满意.

The Power Factor(PF) theory of the 3 phase asymmetrical system of nonsinusoid is reviewed and revised in this paper. Then the calculating circuit of closed loop compensating current for the power factor corrector is developed on the basis of Tentis n phase instantaneous power theory. A paralleled power factor corrector is designed and implemented with an improved adaptive PWM control strategy of current tracking to control the 3 phase voltage...

The Power Factor(PF) theory of the 3 phase asymmetrical system of nonsinusoid is reviewed and revised in this paper. Then the calculating circuit of closed loop compensating current for the power factor corrector is developed on the basis of Tentis n phase instantaneous power theory. A paralleled power factor corrector is designed and implemented with an improved adaptive PWM control strategy of current tracking to control the 3 phase voltage fed inverter. Experimental results have verified the feasibility of the power factor corrector.

在Tenti的瞬时功率理论基础上,设计了一种用于功率因数校正装置的补偿电流参考信号检测电路,并在实验室设计安装了1台小容量并联型功率因数校正装置,其主回路采用电压型三相DC-AC逆变器,并采用改进的自适应电流跟踪型PWM控制电路.实验结果表明,该装置达到了很好的补偿效果,验证了设计的正确性

Introduces a varying frequency AC speed control system of new vector conversion control. The construction of system was desinged in which 80C196 microcontroller is used as main controller.The latest inverter PWM of current track type is adopted in the system,that is,two three-stage hysteresis comparers are used as current controller to control DC component of stator current vector(magnetic field orientation). Thus,high performance speed control of constant torque and power has been realized.

介绍了一种新型矢量变换控制的交流变频调速系统,设计了以80C196单片机为主控制器的系统结构.本系统采用最新发展的电流跟踪型PWM逆变器,即采用两个三级磁滞比较器作为电流控制器,用来控制定子电流矢量直流(磁场定向)分量,实现了高性能的恒转矩调速和恒功率调速.

 
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