燃料电池用三相DC/DC超高频正弦波电压输出逆变器控制策略研究  

Research on Control Strategy of Three-phase DC/DC Ultra High Frequency Sine Wave Voltage Output Inverter for Fuel Cell

作　　者：冯翔 余岳 李诚 郑威 刘建华[1] FENG Xiang;YU Yue;LI Cheng;ZHENG Wei;LIU Jianhua(College of Railway Transportation,Hunan University of Technology,Zhuzhou 412007,Hunan,China)

机构地区：[1]湖南工业大学轨道交通学院,湖南株洲412007

出　　处：《电气传动》2024年第10期9-14,25,共7页Electric Drive

基　　金：湖南省自然科学基金(2022JJ50082);湖南省大学生创新创业训练项目(S202211535045);教育部产学合作协同育人项目(202102264003)。

摘　　要：传统超高速永磁同步电机驱动器采用PWM等效正弦电压输出,谐波较大,导致电机发热严重,并且其无法用于燃料电池等输入电压大范围变化的场合。为减少电机发热量,进一步拓展其应用场景,提出了一种基于三相DC/DC变换器的新型正弦波电压输出逆变器,通过建立逆变器的控制策略的数学模型,驱动了一台120 kr/min的超高速永磁同步电机。实验结果表明,三相正弦波电压输出逆变器输出电压谐波低于传统逆变器,在高转速工况下减少了电机发热量,具有实际工程应用价值。The traditional ultra high speed permanent magnet synchronous motor(PMSM)driver uses PWM equivalent sine voltage output,which leads to severe motor heating due to large harmonics,and it cannot be used in situations where the input voltage changes over a large range,such as fuel cells.To reduce the heat generated by the motor and further expand its application scenarios,a new sine wave voltage output inverter based on three-phase DC/DC converter was proposed,a 120 kr/min ultra high speed PMSM was successfully driven.The experimental results show that the output voltage harmonics of the three-phase sine wave voltage output inverter are lower than those of traditional inverters,which reduces the heat generation of the motor under high speed conditions and has practical engineering application value.

关 键 词：超高频正弦波 升降压斩波电路 永磁同步电机 

分 类 号：TP351[自动化与计算机技术—计算机系统结构] TM464[自动化与计算机技术—计算机科学与技术]