星载EPC的抗干扰分析与设计
Analysis and Design on Disturbance Depression in EPC Used in Spaceborne TWTA
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摘要: 气象卫星星载行波管放大器TWTA的抗干扰能力是其可靠性的一个重要参数。为空间行波管TWT提供电源及控制的EPC的抗干扰性对整个TWTA的抗干扰能力起主要影响。该文以EPC中预稳电路为例,利用开关电源的小信号模型分析了电路对稳态干扰的响应、运用PSPICE进行瞬态干扰分析,给出了PID(Proportional-Integral-Differential)参数最优设计方法,实际结果满足要求。Abstract: Disturbance depression is very important to the reliability of spaceborne TWTA and the Electronic Power Controller (EPC) is responsible for the disturbance depression of it. In this paper, based on small signal model and PSPICE, the responses to static and transit disturbance in the pre-regulation stage of EPC are analyzed. And the design for PID is given, the results are satisfactory.
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程煜烽,王兆申.星载行波管放大器杂波谱抑止的研究.电子与信息学报,2002,24(1):103-107.[2]中国空间技术第五研究所.C频段4.5W行波管放大器技术条件,1998,5.[3]Linfinity Microelectronics Inc. SG1525A/SG2525A/SG3525A, Regulating Pulse Width Modularor, 1996. ［4］张占松,蔡宣三.开关电源的原理与设计.北京:电子工业出版社,1998:303-312. -
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