摘要
组合型非隔离三端口变换器TPC(three-port converter)作为航天器供电系统用能源管理器,可以实现太阳能光伏、蓄电池和负载3个功率端口之间的电能传输与变换,具有功率密度高、变换效率高、系统易构建、在轨易维护的优点。组合型非隔离三端口变换器采用交错双向Buck/Boost变换器和半有源全桥整流器以堆叠方式连接,实现了任意2个端口之间的单级功率转换,并采用脉宽调制+移相调制策略实现了其中2个端口的独立功率控制。详细分析TPC的工作原理、调制和控制策略,提出设计注意事项,并通过实验结果进一步评价其性能。
As an energy manager for spacecraft power supply systems,the combined non-isolated three-port converter(TPC)can transfer and transform the electric energy between the three power ports of solar photovoltaic,battery and load,showing advantages of high-power density,high conversion efficiency,easy system construction and easy on-orbit maintenance.The combined non-isolated TPC is stacked with an interleaved bidirectional Buck/Boost converter and a semi-active full-bridge rectifier to realize the single-stage power conversion between any two ports,and the independent power control of the two ports is achieved by the pulse width modulation and phase-shift modulation strategies.The working principle,modulation strategy and control strategy for TPC were analyzed in detail,the corresponding design considerations were proposed,and its performance was further evaluated by experimental results.
作者
王蓓蓓
吴建超
王力
董晓锋
吴红飞
WANG Beibei;WU Jianchao;WANG Li;DONG Xiaofeng;WU Hongfei(Beijing Spacecrafts,Beijing 100190,China;College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)
出处
《电源学报》
北大核心
2025年第4期35-44,共10页
Journal of Power Supply
关键词
组合型非隔离三端口变换器
航天器供电系统
软开关
脉宽调制+移相调制
Combined non-isolated three-port converter
spacecraft power supply system
soft-switching
pulse width modulation+phase-shift modulation
