电源学报2024，Vol.22Issue(4)：83-91,9.DOI:10.13234/j.issn.2095-2805.2024.4.83
一种单电源九开关二倍升压九电平逆变器
Single Supply Nine-switch Double Boost Nine-level Inverter
摘要
Abstract
Aimed at the problems in the existing nine-level inverter such as many devices and a complex modulation strategy,a novel switched capacitor nine-level inverter is proposed.The topology of this inverter is composed of only one single DC power supply,nine switches,two capacitors and two diodes,and it can output nine levels and double the boost at the same time.The voltages of capacitors are self-balancing,and the complex control algorithm and external voltage sharing circuit are not required.The phase disposition PWM strategy is adopted to modulate the inverter.The working states of four pairs of switches in the inverter are complementary,and the NOT gate logic circuit can be used to reduce the complexity of the modulation strategy.First,the topology and working principle of the inverter are analysed theoretically.Second,the modulation strategy is introduced in detail,and the advantages of this topology are introduced by comparing it with other nine-level inverters.Finally,the feasibility and effectiveness of the proposed topology and modulation strategy were verified based on the established simulation circuit and experimental platform.关键词
单电源/开关电容/九电平逆变器/二倍升压/载波层叠调制Key words
Single power supply/switched capacitor/nine-level inverter/double boost/phase disposition PWM分类
信息技术与安全科学引用本文复制引用
潘健,陈光义,熊嘉鑫,刘雨晴..一种单电源九开关二倍升压九电平逆变器[J].电源学报,2024,22(4):83-91,9.基金项目
太阳能高效利用及储能运行控制湖北省重点实验室开放基金资助项目(HBSEES201902)This work is supported by Open Fund of Hubei Key Laboratory for High-efficiency Utilization of Solar Energy and Operation Control of Energy Storage System under the grant HBSEES 201902 （HBSEES201902）
