TY - GEN
T1 - High-efficiency switch-linear-hybrid space solar array simulator with a simple thermal design method for linear power stage
AU - Jin, Shanshan
AU - Zhang, Donglai
AU - Liu, He
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/12/15
Y1 - 2017/12/15
N2 - Space solar array simulators (SSASs) typically use linear power stages to guarantee high dynamic performance. However, commercial SAS modular products widely used in aerospace power supply system testing require multiple modules in parallel, to improve the output power level and efficiency. This paper proposes a simple thermal design for the linear power stage of an SSAS, which combines a linear power stage unit and a multilevel bus tracking converter unit. The proposed design can help achieve fast step-switching capability and high power-handling capacity. The linear power stage with 20 linear voltage-controlled current paths in parallel and the multilevel bus tracking converter can provide variable voltage levels to track the SSAS output voltage, which decreases the power dissipation in the linear power stage. The reasonable parameters of the multilevel bus tracking converter based on the proposed design, can improve the efficiency of the SSAS significantly. The highest efficiency obtained is approximately 0.942, which is higher than that of the similar SAS products for all working points on the designed I-V curve.
AB - Space solar array simulators (SSASs) typically use linear power stages to guarantee high dynamic performance. However, commercial SAS modular products widely used in aerospace power supply system testing require multiple modules in parallel, to improve the output power level and efficiency. This paper proposes a simple thermal design for the linear power stage of an SSAS, which combines a linear power stage unit and a multilevel bus tracking converter unit. The proposed design can help achieve fast step-switching capability and high power-handling capacity. The linear power stage with 20 linear voltage-controlled current paths in parallel and the multilevel bus tracking converter can provide variable voltage levels to track the SSAS output voltage, which decreases the power dissipation in the linear power stage. The reasonable parameters of the multilevel bus tracking converter based on the proposed design, can improve the efficiency of the SSAS significantly. The highest efficiency obtained is approximately 0.942, which is higher than that of the similar SAS products for all working points on the designed I-V curve.
KW - I-V curve
KW - Multi-level tracking converter
KW - high dynamic performance
KW - solar array simulator
KW - thermal design of linear power stage
UR - https://www.scopus.com/pages/publications/85046634936
U2 - 10.1109/IECON.2017.8216754
DO - 10.1109/IECON.2017.8216754
M3 - 会议稿件
AN - SCOPUS:85046634936
T3 - Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
SP - 4383
EP - 4390
BT - Proceedings IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 43rd Annual Conference of the IEEE Industrial Electronics Society, IECON 2017
Y2 - 29 October 2017 through 1 November 2017
ER -