The voltage space vector is selected as the PWM method.
论文采用电压空间矢量作为PWM调制方法。
It is lastly performance and cost criteria to determine the choice of a PWM method in a specific application.
对于具体的应用而言，选择一种PWM控制技术的最终决定因素是性能要求及成本标准。
The fixed frequency sample PWM method is put forward in this paper together with the theoretical analysis about their switch strategy.
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。
Based on this, the thesis also researches PWM control methods of multi-level inverter and introduces the carrier PWM method of three-level inverter in detail.
在此基础上，研究了多电平逆变器的各种PWM控制方法，并对三电平逆变器的载波pwm方法进行了详细介绍。
A novel carrier-based PWM method utilizing control freedom degree (CFD) is proposed. The principle, simulation and DSP implementation of the method are discussed in detail.
基于分析的结果，提出了一种新的载波pwm控制方法，并详细讨论了这种方法的原理，仿真及DSP数字实现。
Theoretically analyzed the cause of the non-conduction phase current with the PWM method of upper and lower bridge arm chopping by turns, and made some experiments to verify its validity.
结合上下桥臂轮流斩波PWM调制方式，从理论上分析了不导通相电流产生的原因，并进行了实验研究，表明不导通相电流的大小与不导通相的反电势大小有关。
The presented phase Angle PWM method is centering attention on motor stator voltage space vector and controls the vector Angle to vary linearly and so reduces higher harmonics in voltage wave.
本文提出的角度PWM方法着眼于电机的定子电压空间矢量，使其矢量角均匀变化，减小电压波形中的高次谐波分量。
Base on the response characteristics of FED, the improved grayscale pulse width modulation (PWM) method was designed.
根据FED显示器响应特性，设计了改进型pwm灰度调制方法。
Base on the response characteristics of FED, the improved grayscale pulse width modulation (PWM) method was designed.
根据FED显示器响应特性，设计了改进型pwm灰度调制方法。
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