级联多电平变换器CPSPWM可重构控制研究  

Research on Reconfigurable CPSPWM Control of Cascaded Multilevel Converters

作　　者：吕飞[1] 张松涛[1] 余凤豪 吉哲[1] 

机构地区：[1]海军蚌埠士官学校机电系,安徽蚌埠233012

出　　处：《电气自动化》2015年第6期43-46,共4页Electrical Automation

摘　　要：多电平变换装置的可靠性是衡量装置优劣的重要性能,级联多电平变换装置利用故障单元旁路技术可提高可靠性。分析了级联多电平变换装置的可重构途径,推导了中性点移位重构技术及计算参数的公式,提出了基于中性点移位的载波相移脉宽调制(CPSPWM)方法,分别进行了三相级联11电平变换装置正常与单元故障时CPSPWM可重构控制仿真。仿真结果验证了控制策略的正确性。Reliability of the multilevel converter is an important performance for measuring the quality of the device,and cascaded multilevel converter using trouble unit bypass technology can improve its reliability. This paper analyzes the configurable approach of the cascaded multilevel converter,deduces neutral point shift reconstruction technology and parameter calculation formula,and presents the carrier phase shift pulse width modulation based on neutral point shift. Simulation is made of CPSPWM configurable control of the three-phase cascaded 11-level conversion device in normal case and in trouble unit condition separately. Simulation results validate the correctness of the control strategy.

关 键 词：级联多电平变换器 可靠性 可重构 中性点移位 载波相移脉宽调制 

分 类 号：TN624[电子电信—电路与系统]