中国电机工程学报2012，Vol.32Issue(9)：34-40,7.
二极管钳位型双Buck三电平逆变器输入均压解耦控制
Decoupling Control of Input Voltage Balance for Diode-clamped Dual Buck Three-level Inverters
摘要
Abstract
It is a key problem of multilevel inverter that how to balance voltages of input capacitors. Cause to the coupling of multilevel modulation and input voltage balance, no matter hardware circuit or control method of multilevel inverters are always complex, and speed of voltage balance is low. Dual Buck circuit, which composed of two Buck DC/DC converter bridges, works in current half-period mode. A novel diode-clamped multilevel dual Buck inverter was presented which inherited those features. At any moment, one Buck bridge worked for inverter, another worked as a reverse Boost circuit and charged up input capacitors. So inverter and voltage balance control were completely decoupled. In case that multilevel number is not small, this method is conducive to reduce the number of devices and the system complexity, and improve reliability of the system. Simulation and experiment of a diode-clamped three-level inverter verifies these analysis.关键词
逆变器/多电平/均压/钳位/解耦控制Key words
inverter/multilevel/voltage balance/clamp/decoupling control分类
信息技术与安全科学引用本文复制引用
洪峰,嵇保健,杨伟,王成华..二极管钳位型双Buck三电平逆变器输入均压解耦控制[J].中国电机工程学报,2012,32(9):34-40,7.基金项目
国家自然科学基金项目 （）
高等学校博士学科点专项科研基金资助项目 （）
南京航空航天大学基本科研业务费专项科研项目（N$2010093）. （）
