提出一种改进的虚拟空间矢量调制方法。
以空间矢量调制方法来获得逆变器的开关信号,实现了小的转矩脉动和恒定的开关频率。
The control signals of invertor are produced by space vector modulation to achieve a small torque ripple and constant switch frequency.
结合矩阵变换器双空间矢量调制方法,并将矩阵变换器过调制方法用于感应电机直接转矩控制中,达到矩阵变换器开关频率恒定和电机快速转矩响应的目的。
Double space vector modulation and overmodulation of matrix converter were proposed in this paper to ensure the matrix converter switching frequency to be fixed and fast dynam-ic torque response.
本文通过对传统滞环电流控制器的分析,结合电压空间矢量调制方式,提出一种改进的滞环电流控制方法。
This paper presents a sort of improved hysteresis current control method through analyzing the traditional hysteresis current controller and combining voltage space vector modulate method.
该文提出并分析了错时采样空间矢量调制(STS - SVM)技术的工作原理及其在级联型多电平变流器上的实现方法。
In this paper, the principle of Sampling Time Staggered Space Vector Modulation (STS-SVM) as well as its realizing method in cascade multilevel converters is presented.
针对电压源型空间矢量脉宽调制逆变器的死区效应,提出了一种根据电流矢量判断电流极性的死区补偿方法。
Aimed at dead time effect of voltage-fed space vector pulse width modulation (SVPWM) inverter, a novel compensation method detecting current polarities from the current vector was presented.
接下来,本文重点分析了基于矢量调制的组合控制策略,即将矩阵变换器的空间矢量脉宽调制和电动机转子磁场矢量控制有机结合的控制方法。
Next, the mix control strategy were analyzed in detail, which is the control method of combining the space vector pulse width modulation and the rotor magnetic filed directional control.
本文研究了三相电压源型逆变器实现并网所采用的控制方法,包括空间矢量调制法和锁相环技术。
A method of the three phase voltage-source inverter connecting to the grid is studied, which consists of space vector pulse width modulation and phase-locking method.
论文采用电压空间矢量作为PWM调制方法。
在一个调制周期内,可预先求出几个死区电压矢量的合成矢量,用控制软件的方法实现对参考空间电压矢量的校正,从而消除死区效应。
During a modulation period, several dead voltage vectors were synthesized. Using the control software, the reference voltage space vector could be corrected. Thus the dead-time effect was eliminated.
用解析方法和数值方法在理论上研究了光折变晶体中的稳态矢量空间光孤子及有偏压光伏光折变晶体中光束的调制不稳定性;
The steady state vector spatial solitons in photorefractive crystals and the modulation instability in biased photorefractive-photovoltaic crystals are studied by both analytic and numerical methods.
在分析死区效应对空间电压矢量调制输出电压影响的基础上,提出死区电压矢量的概念,给出死区电压矢量的求取方法。
By analyzing the basic influence of the "dead time effect" acting on the output voltage of SVPWM inverter, the concept of the dead time voltage vector is put forward.
对比分析了压缩机电机的典型控制方法,并采用了先进的电压空间矢量脉宽调制(SVPWM)技术对压缩机进行控制。
This paper explains the typical control methods for controlling the compressor and adopts a high performance PWM technology (SVPWM) to control the compressor.
并以三相半波可控整流电路、滞环比较方式的电流跟踪控制、利用S函数实现空间矢量脉宽调制为例说明了软件的使用方法。
Three-phase half wave controlled rectifier, hysteresis comparison mode current track control, and realization of SVPWM by S-Function are used as examples to describe the usage of the software.
电压空间矢量脉宽调制是一种先进的调制方法。
本文方案是基于转子磁链定向、通过固定开关频率、运用空间矢量调制(SVPWM)方法的矢量控制。
This scheme is based on the rotor flux, through the fixed switching frequency and using space vector modulation (SVPWM) method vector control.
提出了一种基于电压空间矢量调制的随机脉冲位置pwm方法,并着重讨论了采用80c196KC单片机实现的方法,给出了其软件设计。
A novel randomized pulse position PWM scheme based on voltage space vectors is proposed. Its realization by the microcontroller 80c196kc is presented. The software design is discussed.
分析了空间矢量pwm的调制算法以及实现方法,最后设计了异步电机的双闭环矢量控制系统。
After space vector PWM modulation algorithms and implementation methods have been analyzed, dual closed-loop vector control system of asynchronous motor is worked out.
在非对称输入电压情况下,对基于双空间矢量调制的矩阵变换器的输出电压波形进行了分析,提出了利用时变调制比改善输出电压波形的方法。
The output voltage waveforms of matrix converter which is based on the space vector modulation are analysed under the unbalanced input voltage. A time-variant modulation ratio method is proposed.
该方法基于空间电压矢量调制,实现了动态过程中有功功率和无功功率的解耦控制。
Space vector modulation (SVM) is applied to the scheme, and decoupling control for the active and reactive power during the dynamic course is realized.
介绍了在二极管钳位三电平逆变器异步电机调速系统中如何采用空间矢量调制与直接转矩控制相结合的控制方法。
So this paper focuses on the study of direct torque control of induction motor based on diode-clamped three-level inverter.
详细阐述了七段式空间矢量脉宽调制实现方法,并搭建了整个系统的仿真模型,得到转矩、转速、定子电流的仿真波形。
The implementation of 7-segment SVPWM algorithm was detailed description and the simulation of the system was built, rotational, speed, the stator current simulation waveforms were got.
详细阐述了七段式空间矢量脉宽调制实现方法,并搭建了整个系统的仿真模型,得到转矩、转速、定子电流的仿真波形。
The implementation of 7-segment SVPWM algorithm was detailed description and the simulation of the system was built, rotational, speed, the stator current simulation waveforms were got.
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