Three-phase four-leg inverter 三相四桥臂逆变器
The PWM control strategy with 3-th harmonic in addition is presented for four-leg three-phase inverter, the inverter can deal with unbalanced load and has a high utilization of dc bus voltage.
本文将三次谐波注入的PWM控制方案应用到四桥臂三相逆变器中，可以带非对称负载且具有较高的电压利用率。
Three-phase four-leg inverter is used in the inverter link to improve the adaptability of the system because loads in distributed generator are uncertain.
针对分布式发电系统负载的不确定性，为提高系统的适应性，文中在逆变环节采用四桥臂逆变器。
The neutral voltage of the three-phase four-leg inverter employed in UPS is desired to be very low.
当三相四桥臂逆变器用于UPS时，要求其中线电压很低。
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