卫星电源控制设备的非线性控制研究  

Research on Nonlinear Control for Power Supply Control Device in Space-borne

作　　者：黄炼 朱永亮[1] 蒋华[1] HUANG Lian;ZHU Yong-liang;JIANG Hua(Nanjing Research Institute of Electronics Technology,Nanjing 210039,China)

机构地区：[1]南京电子技术研究所,江苏南京210039

出　　处：《电力电子技术》2023年第5期41-45,共5页Power Electronics

摘　　要：近年来,卫星供配电系统中全调节母线方式供电系统的功率等级不断提升,负载规模和多样性也变得复杂,平台中电源控制设备的控制方法已成为研究热点。首先建立控制设备中双向DC/DC变换器的非线性模型,利用大信号建模分析,结合二阶经典控制系统理论,分析电路参数对系统性能影响;最后,利用Matlab/Simulink仿真平台和搭建试验平台进行验证,所提的控制方法可以准确、快速地实现蓄电池组充放电功率指令跟踪功能,在平台母线电压扰动、负载突变及系统参数偏移等情况下体现出强鲁棒性。In recent years,the power level of the power system with fully regulated power bus in space-borne distribution system has been continuouslly improved,the load scale and diversity have become complicated,the control method of power supply control device in the platform has become a hot research.Firstly,a nonlinear model of the bidirectional DC/DC converter in the control device is established,a large signal modeling analysis is used,combined with the second-order classical control system theory,the influence of circuit parameters to system characteristics is analyzed.Finally,the Matlab/Simulink simulation platform and the experimental platform are used to verify that the proposed control method can accurately and quickly realize the charging and discharging power command tracking function of the battery pack,the strong robustness against plaform power bus voltage disturbances,load sudden change and deviation of system parameters is showed.

关 键 词：变换器 大信号建模 二阶经典控制系统理论 非线性控制 

分 类 号：TM46[电气工程—电器]