面向风力发电系统的交直流混合升压转换器  

AC/DC Hybrid Boost Converter for Wind Power Generation System

作　　者：宋玲[1] SONG Ling(College of Engineering and Technology,Hubei University of Technology,Wuhan Hubei 430000 China)

机构地区：[1]湖北工业大学工程技术学院,湖北武汉430000

出　　处：《电子器件》2022年第4期883-892,共10页Chinese Journal of Electron Devices

基　　金：2020年度湖北省教育厅科学研究计划指导性项目(B2020358)。

摘　　要：为提高风力发电系统中压功率转换器的性能,提出了一种用于风力发电系统中压直流转换的混合式高增益转换器,该转换器由升压谐振电路和耦合电压四倍频器组成,具有升压电压转换功能。其中,耦合电压四倍频模块通过1∶1∶1高频变压器连接到谐振电路,不需要高匝数比变压器;其次,利用高频整流级输入端的耦合电感构成电流型高增益整流器,保证二极管的平滑性能,消除二极管反向恢复损耗;然后,通过在输出整流级对电压四倍器进行磁耦合,实现电压平衡控制;最后,变频器模块采用变频控制输出电压。经过4MW模块化设计的SiC转换器系统仿真和实验室规模的样机实验,结果表明,转换器峰值效率接近99%。In order to improve the performance of medium voltage power converter of wind power system,a hybrid high gain converter for medium voltage DC(MVDC)conversion of wind power system is proposed.The converter is composed of boost resonant circuit and coupled voltage frequency quadrupler,which has boost voltage conversion function.Firstly,the coupling voltage quadrupling module is connected to the resonant circuit through a 1∶1∶1 high-frequency transformer,which does not need a high turn ratio transformer.Secondly,the current source high gain rectifier with the coupling inductance at the input of the high-frequency rectifier stage ensures the smooth performance of the diode and eliminate the reverse recovery loss of the diode.Then,the voltage balance control is realized by magnetic coupling of the voltage quadrupler in the output rectifier stage.Finally,the frequency converter module uses frequency conversion to control the output voltage.The results of 4 MW modular SiC converter system simulation and laboratory scale prototype experiment show that the peak efficiency of the converter is close to 99%.

关 键 词：海上风能 能量转换 谐振转换器 MVDC 碳化硅 

分 类 号：TM46[电气工程—电器] TN710[电子电信—电路与系统]