Selection of Carrier Waveforms for PWM Inverter上海大学学报：英文版论文

Selection of Carrier Waveforms for PWM Inverter上海大学学报：英文版论文

【题名】：Selection of Carrier Waveforms for PWM Inverter上海大学学报：英文版论文(Selection of Carrier Waveforms for PWM InverterShangHaiDaXueXueBao：YingWenBanLunWen)
【关键词】：载波通信逆变器波形选择谐波失效时间
【keywords】：ZaiBoTongXin NiBianQi BoXingXuanZe XieBo ShiXiaoShiJian
【作者】：陈国呈屈克庆许春雨孙承波      【来源】：知识词典
【期刊名称】：上海大学学报：英文版(ShangHaiDaXueXueBao：YingWenBan)
【国际标准刊号】：1007-6417        【国内统一刊号】：31-1735
【作者单位】：SchoolofElectromechanicaIEngineeringandAutomations,ShanghaiUniversity,Shanghai200072,China(SchoolofElectromechanicaIEngineeringandAutomations,ShanghaiUniversity,Shanghai200072,China)
【分类号】：TM464 TN913.6      【页码】：-389-394      【出版年】：2003.4
        In this paper the influence of different carrier waveforms upon the output characteristics of PWM inverter is described in detail. When a triangular carrier waveform is used in hard-switching PWM inverters, harmonics exist in the neighborhood of the output frequency of the inverter output voltage and current due to the dead time. The triangular carrier waveform used in soft-switching PWM inverter will cause difficulties in controlling resonance-trigger time, higher loss in the resonant circuit, and less utilization of the DC bus voltage. If a sawtooth carrier is used in hard-switching PWM inverter, there will be severe distortion in the current waveform. When sawtooth carriers with alternate positive and negative slopes are used in soft-switching PWM inverters, the resonancetrigger time is easy to control, and distortion in the output voltage and current caused by the dead time will not appear.

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