Active Voltage Balancing of Integrated Modular Drive with Series DC-Link Capacitors
Active Voltage Balancing of Integrated Modular Drive with Series DC-Link Capacitors
复制标题
具有串联直流母线电容器的集成模块化驱动器的有源电压平衡
DOI：
10.1109/ecce44975.2020.9236275
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
T. Jahns
中科院分区：
文献类型：
--
作者：
Fan Wu;A. El;T. Jahns
为了减小传输电缆的尺寸和重量，多电动飞机(MEA)混合动力系统中使用的电机传动装置需要高直流母线电压。采用直流电容串联的集成式模块化电机驱动(IMMD)对每个驱动单元的电源电压进行细分。在较低的电应力下，可以显著降低高海拔地区的局部放电(PD)风险。本文研究了兆瓦级集成化模块化电机驱动系统中直流侧有源电压平衡控制的挑战。电压闭环控制是在高电气频率和有限开关频率的挑战下发展起来的。研究了驱动单元数量和元件参数变化的影响，突出了采用串联直流连接电容器的IMMD的设计权衡。
In order to reduce the size and weight of transmission cables, high direct current (DC) bus voltage is desired for electrical machine drives used in the hybrid powertrains of more-electric aircraft (MEA). An integrated modular machine drive (IMMD) with DC-link capacitors connected in series is adopted to break down the supply voltage for each drive unit. With lower electrical stress, partial discharge (PD) risks at high altitudes can be significantly reduced. This paper deals with the challenge of active DC-link voltage balancing control in a megawatt-level integrated modular machine drives. Voltage closed-loop control is developed under the challenges of high electrical frequency and limited switching frequency. The impact of drive unit count and component parameter variations has been investigated, highlighting the design tradeoffs of the IMMD with series DC-link capacitors.