一种灵活的可编程三相开关功率放大器-模拟电子-电子工程世界网 关键词：开关功率放大器；可编程；三相四桥臂逆变器 [gap=494]Keywords:Switching power amplifier; Programmable; Three-phase four-leg inverter
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four-leg three-phase inverter 四桥臂三相逆变器
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。
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。
A discrete and nonlinear mathematical model of three-phase four-leg inverter is built up with the switch state functions based on the analysis of its working modes.
在分析三相四桥臂逆变器工作模态的基础上，引入开关状态函数建立了四桥臂逆变器系统离散的、非线性的数学模型。
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