电测与仪表2016，Vol.53Issue(13)：107-111,128,6.
燃料电池发电系统中功率变换器的研究
The study of the power converter in the fuel cell power generation system
摘要
Abstract
According to the output characteristic of fuel cell with low output voltage grade and wide range,, this paper studied a new type of converter, the converter is made up of the former DC converter with the high gain and the later ac converter cascade structure.High-gain DC converter adopts the average current control strategy, achieves the booster of high gain and voltage stabilizing function, and has lower switch tube voltage/current stress.The later ac converter adopts advanced virtual synchronous generator algorithm, which is able to fast and accurately track the load change, adjust the fre-quency in real-time and without error, and has good reactive voltage droop characteristic.As known from the analysis:the former dc output voltage level has been stable at 700 V when we conduct simulation, when the reactive power increases to 200 Var, the voltage amplitude fluctuation is about 0.5 V, and the inverter output frequency does not change along with the fluctuation of load, which is stable at 50.012 Hz.Experiment results show that the dc converter has high voltage gain, and the gain is up to 20 times, which is stable and be able to work in stable expectations around 50 V.The simulation and ex-perimental analysis verified the feasibility of topological circuit structure and control method.关键词
燃料电池发电系统/新型高增益直流变换器/平均电流控制/改进型虚拟同步发电机算法Key words
fuel cell power generation system/new high-gain DC converter/average current control/the modified vir-tual synchronous generator algorithm分类
信息技术与安全科学引用本文复制引用
刘威,曹太强,郭筱瑛,李清,甘雪..燃料电池发电系统中功率变换器的研究[J].电测与仪表,2016,53(13):107-111,128,6.基金项目
西华大学研究生创新基金研究项目（ ycjj2015209、ycjj2015095）；西华大学学生创新创业项目（苗子工程）2015RZ0030；攀枝花市太阳能光伏离／并网智能化控制逆变一体集成应用（2014CY－S－1－2）；攀枝花学院分布式光伏多逆变器并网控制研究（2014YB11）；攀枝花市科技计划项目－光伏发电系统关键技术研制2015 CY－C－5；四川省高校重点实验室－太阳能技术集成及应用推广（2013TYNZ－02／TYN2015－09）；四川省电力电子节能技术与装备重点实验室 （）
