电工技术学报2016，Vol.31Issue(18)：83-91,9.
单一直流源的七电平混合级联逆变器
The Hybrid Cascaded Inverter with Single Voltage Source
摘要
Abstract
Traditional two-unit H-bridge hybrid inverters need two different voltage sources. This paper adopts capacitances instead of low voltage source, accordingly only high voltage source is needed to achieve 7-level output. With the multi-carrier stacked PWM modulation, the charge status of the capacitance can be controlled by choosing different combination levels. This paper analyses the conditions that control the capacitance voltage to the half value of the high voltage source. Consequently, two factors that determine whether the capacitance voltage is stable are achieved. By comparing the power loss, the optimum scheme is obtained to realize the purpose of holding the capacitance voltage to the half value of the high voltage source. Last, system simulation and experiments verify the proposed strategy.关键词
混合级联式逆变器/单一直流源/多电平逆变器/电容电压控制Key words
Hybrid cascade inverter/single voltage source/multilevel inverter/controlling of the capacitance voltage分类
信息技术与安全科学引用本文复制引用
何凯益,任磊,龚春英,邓翔..单一直流源的七电平混合级联逆变器[J].电工技术学报,2016,31(18):83-91,9.基金项目
国家自然科学基金资助项目（51377079）。 （）
