1) carrier phase-shifting parallel
载波移相并联
1.
To meet the high reliability requirements of high-power direct-driven wind turbine,the back-to-back carrier phase-shifting parallel dual PWM converter is used as the power exchange unit of permanent magnet direct-driven wind turbine.
基于大功率低速永磁直驱风力发电系统高可靠性要求,以背靠背载波移相并联双脉宽调制(PWM)变流器作为永磁直驱风力发电功率变换单元,对变流器冗余性、并联特性、输出开关纹波特性进行了分析设计。
2) carrier phase-shifting
载波移相
1.
By MATLAB simulation,the influence of variations of M modulation rate on output phase and line voltages are analyzed based on carrier phase-shifting control,and the variations of total distortion rate of harmonic are also analyzed.
采用载波移相控制,通过Matlab仿真,分析调制比M变化时对输出相电压、线电压的影响以及谐波总畸变率的变化。
2.
in this paper, based on the topology of cascaded multilevel converter and its modulation technique of carrier phase-shifting, Digital Signal Processor (DSP) and Complex Programmable Logic Divice (CPLD) consist of PWM pulse generator, the paper solves the problem of driving pulse interface between Digital Signal Processor (DSP) and switching devices.
本文基于级联型多电平变频器的拓扑结构和载波移相SPWM技术,由数字信号处理器(DSP)与复杂可编程逻辑器件(CPLD)组成的PWM脉冲发生器,解决了DSP与多电平变频器的开关器件间的驱动脉冲接口问题。
3.
For multiple back-to-back four-quadrant converter,a modified SPWM technique is combined with carrier phase-shifting control,which reduces current harmonic and enhances power exchange ability.
针对多重化的背靠背四象限变流器,采用了载波移相控制与改进的SPWM调制相结合的方法,减小了电流谐波,提高了功率交换能力。
3) carrier phase shifted(CPS)
载波相移
1.
For two-bridge MSI,the authors propose a method called CPS-SPWM,which combines carrier phase shifted(CPS) with sinusoidal pulse width modulation(SPWM),to increase the equivalent switching frequency under low switching frequency and make the inverter bridges working more synchronically for better e.
针对两单元多重化逆变器,提出一种载波相移正弦调制方法,可以在低次开关频率下提高系统的等效开关频率,提高各逆变器组工作的一致性,实现更好的谐波相抵效果,具有更快的实时性。
4) phase-shifting carrier
相移载波
1.
The small-signal averaging model of cascade phase-shifting carrier SPWM inverter is also built and analyzed.
本文首先建立了单相单极性全桥SPWM逆变器的小信号平均模型，详细分析了模型中的参数变化对逆变器系统性能的影响，并给出了相应的物理解释以及Saber仿真结果，在此基础上，进一步建立了级联型相移载波SPWM逆变器的小信号平均模型，并进行了相关分析；其次，建立了单相单极性全桥SPWM逆变器以及级联型相移载波SPWM逆变器的数学模型，对二者分别进行了详细的谐波分析，提出了一种有效的SPWM逆变器滤波器的设计方法，将其应用于以上两种逆变器，取得了良好的效果；接着，详细介绍了级联型相移载波SPWM逆变器的工作原理，对它的一些特点进行了讨论；最后，分别制作了单相单极性全桥SPWM逆变器以及级联型相移载波SPWM逆变器的实验样机，给出了各自的实验波形与实验数据。
补充资料：载波
已调波中的高频波。将信息调制在等幅的高频振荡波或脉冲波上，才能通过各种不同媒介传送到远方去。由于高频波或脉冲波上载有信息，故名。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条