论文部分内容阅读
提出了基于Superbuck电路拓扑的航天用电源控制器(Power Conditioning Unit,PCU)中蓄电池充电调节器(Battery Charge Regulator,BCR)的控制系统设计方法,简述了PCU的基本构成和控制区域划分基本原理,分析了BCR在PCU系统中的运行模式,根据其运行特点,对以4阶Su-perbuck电路为拓扑的BCR进行了建模,给出了占空比控制的多个变量的传递函数表达式,依此设计了三环并列控制的蓄电池充电调节器,并给出了BCR分别在恒压输出,恒流输出,自稳定输入母线工况下的仿真和实验结果,验证了设计的正确性.
The control system design method of Battery Charge Regulator (BCR) in Power Conditioning Unit (PCU) based on Superbuck topology is presented. The basic structure and control area of PCU are briefly described , Analyzes the operation mode of BCR in PCU system, and according to the operation characteristics of BCR, the BCR with topological 4-order Su-perbuck circuit is modeled, and the transfer function expression of multiple variables of duty cycle control is given Based on this, the battery charge adjuster with parallel control of three loops was designed and the simulation and experimental results of BCR under constant voltage output, constant current output and self-stabilizing input bus were given respectively. The correctness of the design was verified.