新颖的小容量光伏/燃料电池供电逆变器  

NOVEL SMALL-CAPACITY PHOTOVOLTAIC/FUEL CELL POWER SUPPLY INVERTER

作　　者：秦舒然 江加辉 陈道炼 陈伟强 Qin Shuran;Jiang Jiahui;Chen Daolian;Chen Weiqiang(College of Electrical Engineering,Qingdao University,Qingdao 266017,China;College of Electrical Engineering and Automation,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]青岛大学电气工程学院,青岛266017 [2]福州大学电气工程与自动化学院,福州350108

出　　处：《太阳能学报》2023年第5期178-187,共10页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51537001);山东省泰山学者攀登计划。

摘　　要：针对多种新能源联合供电场合,提出一种新颖的小容量光伏/燃料电池供电逆变器,并对其电路拓扑、能量管理控制策略、高频开关过程、双输入源占空比、输出电压复合控制器设计、双输入源共模抑制等关键技术进行深入研究。该电路拓扑是由双输入源选择开关、工作半个输出周期的2个双向Flyback直流斩波器、交流滤波电容级联构成。该文所提主从功率分配能量管理SPWM复合控制策略通过控制输出电压瞬时值和多输入源输出功率比来实现对输入源的能量管理和2种工作模式无缝切换。设计并研制的1 kVA光伏/燃料电池双输入逆变器样机的实验结果表明,该逆变器具有单级功率变换、变换效率高、占空比调节范围宽、输出波形质量高、不同供电模式间无缝切换等优良性能。A novel small-capacity photovoltaic/fuel cell power supply inverter is proposed for multiple new energy power supply occasions.Key technologies such as its topology,energy management control strategy,high-frequency switching process,dual input source duty cycle,output voltage compound controller design and dual-input common-mode suppression have been studied.The topology is composed of two input source selector switches,two bidirectional Flyback DC choppers working for half an output cycle,and an AC filter capacitor.The proposed master-slave power distribution energy management SPWM composite control strategy is to realize the energy management of the input sources and the seamless switching of the two working modes by controlling the instantaneous value of the output voltage and the output power ratio of the input sources.A 1 kVA photovoltaic/fuel cell dual-input inverter prototype is designed and developed.The experimental results show that the inverter has the advantages of single-stage power conversion,high conversion efficiency,wide duty cycle adjustment range,high output waveform quality and seamless switching between different power supply modes.

关 键 词：双输入逆变器 Flyback斩波器 燃料电池 能量管理控制 双输入源共模抑制 

分 类 号：TM46[电气工程—电器]