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三角载波pwm
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  “三角载波pwm”译为未确定词的双语例句
     In order to overcome the drawback of the compensation of such kind control for series part during the voltage sag and voltage surge, an improved adaptive PWM control is developed which can automatically adjust the amplitude of the triangle wave during voltage sag and voltage surge.
     文中还分析了UPQC 串联部分的控制在动态补偿电压跌落和浪涌时的功能局限,提出了一种自适应的三角载波PWM 控制方法,可以在电压跌落和浪涌期间,根据电压畸变量幅值的变化幅度自适应调节三角载波幅值,可以取得较好的控制效果。
短句来源
     Triangle carrier wave PWM control method is adopted in the thesis, and the running process of unipolar PWM control method is analyzed.
     本文的控制方式采用三角载波PWM方法,分析了单极性PWM法的工作过程。
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  相似匹配句对
     FPGA-implemented Design of Phase-Shift SPWM control based on Direct Digital Frequency Synthesis(DDS)
     基于直接数字频率合成的三角载波移相PWM控制FPGA的设计实现
短句来源
     On PWM Inverter Technique with a Vibrato Carrier
     颤音载波PWM逆变技术研究
短句来源
     Triangle carrier wave PWM control method is adopted in the thesis, and the running process of unipolar PWM control method is analyzed.
     本文的控制方式采用三角载波PWM方法,分析了单极性PWM法的工作过程。
短句来源
     A novel sine-triangle modulation method based on horizontal phase shifted carrier for the three-level VSI is proposed.
     提出了一种新型的基于三角载波水平移相的三电平逆变器PWM调制方法。
短句来源
     PS-SFO-PWM control for high-power STATCOM employing cascade multilevel inverters
     大容量链式STATCOM的三角载波移相-开关频率最优PWM法控制策略的研究
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  carrier-based pwm
For sending pulses to the APF gates, we employed the carrier-based PWM strategy.
      
However, the overmodulation characteristics of many other carrier-based PWM methods have not been explored, nor has a comparative study been reported.
      
In this paper we applied the carrier-based PWM having the control law described in Figure 7.
      


Multilevel converters are a novel kind of converters used in high voltage and high power application field. And its corresponding topology and PWM method are two research hot points. According to state of the art,it is a reasonable selection that using a cascaded multilevel converter topology controlled by triangle carried based PWM, when voltage level is more than three. Based on this point of view, the paper discusses three existing kinds of triangle carrier based PWM strategies firstly. Their principle,...

Multilevel converters are a novel kind of converters used in high voltage and high power application field. And its corresponding topology and PWM method are two research hot points. According to state of the art,it is a reasonable selection that using a cascaded multilevel converter topology controlled by triangle carried based PWM, when voltage level is more than three. Based on this point of view, the paper discusses three existing kinds of triangle carrier based PWM strategies firstly. Their principle, advantages and disadvantages are compared each other. Then a new kind of PWM strategy is presented, which is suitable for cascade multilevel converters. In order to compare the control effects of them, some simulations have been done by Saber simulation software. The simulation results show the proposed PWM method has many advantages of the three kinds of PWM method mentioned above, especially in output voltage harmonic and voltage utility ratio aspects. In the last part of the paper, some suggestions on future research are given.

多电平变换器作为一种应用于高压大功率变换场合的新型变换器 ,其相应的电路拓扑结构和PWM控制方法是当前的一个研究热点 ,基于现有的研究成果 ,该文认为当电平数超过 3时 ,采用级联型电路拓扑结构和三角载波PWM法的组合 ,是一种较为可行的方案。在此基础上 ,首先讨论了三种已有的多电平变换器三角载波PWM控制方法 ,根据它们各自的优缺点 ,提出了一种新型的适用于级联型多电平变换器的PWM方法。文中介绍了它们的原理和特点 ,为了比较它们的控制效果 ,采用功能强大的Saber软件进行了仿真研究 ,仿真结果表明 ,所提出的方法 ,在输出电压谐波和电压利用率方面 ,兼具前三种方法的优点。最后 ,作者对今后的研究提出了建议。

The correlation between the carrier-based PWM and SVPWM in three level inverters is estab-lished, based on theory analysis, which is analogous with that of two level. According to the correlation, the two level switch-ing loss minimized PWM(SLMPWM) method is extended to the three level inverters. The neural point voltage unbalance problems which are the inherent of three level inverters are solved successfully in this method by some special means. The simulation and experimental results show the proposed method...

The correlation between the carrier-based PWM and SVPWM in three level inverters is estab-lished, based on theory analysis, which is analogous with that of two level. According to the correlation, the two level switch-ing loss minimized PWM(SLMPWM) method is extended to the three level inverters. The neural point voltage unbalance problems which are the inherent of three level inverters are solved successfully in this method by some special means. The simulation and experimental results show the proposed method is feasible and suitable for high power three level inverters.

在理论分析的基础上建立了三电平三角载波PWM法和空间电压矢量PWM法之间的本质联系,其关系完全类似于两电平中两者之间的关系,以此为依据,可将两电平开关损耗最小PWM法推广应用于三电平,并最终实现了三电平开关损耗最小和中点电压平衡的协调控制。

In this paper, a novel asymmetric 5-level inverter is studied in which a half-bridge diode-clamp inverter and a conventional half-bridge inverter are connected to a common split-capacitor power supply. Analysis of a control technique for the inverter, which incorporates square-wave synthesis in conjunction with Subharmonics PWM method, is included. Under the proposed control technique, the new configuration permits faster devices and high voltage devices operating in synergism. Comparison with three other single-phase...

In this paper, a novel asymmetric 5-level inverter is studied in which a half-bridge diode-clamp inverter and a conventional half-bridge inverter are connected to a common split-capacitor power supply. Analysis of a control technique for the inverter, which incorporates square-wave synthesis in conjunction with Subharmonics PWM method, is included. Under the proposed control technique, the new configuration permits faster devices and high voltage devices operating in synergism. Comparison with three other single-phase 5-level inverters is presented in this paper. In order to verify the proposed approach, a single-phase 5-level asymmetric inverter was constructed and experimental results are provided.

该文对一种新型单相不对称五电平逆变器进行研究,这种新型逆变器是通过将半桥二极管钳位逆变器和传统两电平半桥逆变器共享同一直流母线而获得的。针对这种新型拓扑结构该文分析了一种方波合成与消谐波三角载波PWM相结合的控制方法,在这种控制方法下,新型逆变器允许开关速度较快的器件和耐压值较高的器件工作在一起。文中将这种逆变器与其它三种单相五电平逆变器进行了比较。最后本文对一个单相五电平不对称逆变器电路进行了实验验证,并给出相关结论。

 
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