电力系统保护与控制Issue(14)：8-13,6.
一种适用于飞跨电容型多电平逆变器的新型载波同相层叠PWM方法
A novel carrier-based disposition PWM method with voltage balance for flying capacitor multilevel inverter
摘要
Abstract
The conventional carrier-based cascading PWM method cannot balance the flying capacitor voltage for flying capacitor multilevel inverter (FCMLI). This paper improves the conventional phase disposition PWM method (PDPWM) to achieve the balance of the flying capacitor through adding the link selection of zero level which will be a reasonable allocation of zero level vectors. The carrier waveform will change with different modulations. Its line voltage harmonic performance is greatly improved than that of the conventional phase-shifted carrier PWM method (PSPWM), especially under middle modulation index region. The validity of the novel PWM method is demonstrated by the simulation results.关键词
飞跨电容型多电平逆变器/载波移相PWM/载波同相层叠PWM/零电平选择环节/电压平衡Key words
FCMLI/PSPWM/carrier-based phase disposition (PD) PWM/zero level selection/voltage balance分类
信息技术与安全科学引用本文复制引用
王琨,冯琳,李国杰..一种适用于飞跨电容型多电平逆变器的新型载波同相层叠PWM方法[J].电力系统保护与控制,2014,(14):8-13,6.基金项目
国家科技支撑计划(2013BAA01B04)；国家自然科学基金资助项目(51307106)；国家国际科技合作专项(2013DFG71630) （2013BAA01B04）
