舰船脉冲功率负载Buck变换器自适应阻尼比控制方法  

Adaptive Damping Ratio Control Method of Buck Converter for the Marine Pulsed Power Loads

作　　者：林周宏 黄文焘 邰能灵[1] 庞路 李智鹃 杨咏 LIN Zhouhong;HUANG Wentao;TAI Nenging;PANG Lu;LI Zhijuan;YANG Yong(Shanghai Engineering Research Center of Intelligent Ship Integrated Power System(Shanghai JiaoTong University),Minhang District,Shanghai 200240,China;708th Research Institute of CSSC,Huangpu District,Shanghai 200011,China;National Engineering Research Center of Special Equipment and Power System for Ship and Marine Engineering,Xuhui District,Shanghai 200030,China)

机构地区：[1]上海智能船舶综合电力系统工程技术研究中心(上海交通大学),上海市闵行区200240 [2]中船集团第708研究所,上海市黄埔区200011 [3]船舶与海洋工程特种装备与动力系统国家工程研究中心,上海市徐汇区200030

出　　处：《中国电机工程学报》2024年第13期5246-5257,I0019,共13页Proceedings of the CSEE

基　　金：上海市科学技术委员会启明星项目(22QA1404300)。

摘　　要：针对脉冲功率负载的周期性功率突变造成接口变换器输出电压瞬时跌落和持续扰动的问题,提出一种Buck变换器的自适应阻尼比控制方法,使得输出电压的响应性能能够直接通过阻尼比实现精确调节,不依赖于控制参数,且对输入电压扰动具有抑制作用。该方法通过引入类电压环消除了时变的输入和占空比的非线性饱和,建立输出电压与其参考值的单输入单输出二阶系统,将不确定负载扰动的控制问题转化为二阶系统的阻尼比控制问题。此外,在不影响电压调节性能的前提下,通过附加占空比调节实现并联变换器供电结构的均流控制。仿真和硬件在环实验结果表明,在脉冲功率负载的不同暂态过程,并联变换器均能够实现快速平滑的电压调节和输出电流均衡。Based on the problems of instantaneous voltage drop and continuous disturbance of the output voltage of the interface converter caused by the periodic power steps of pulsed power loads(PPLs),an adaptive damping ratio control is proposed for Buck converter.This approach enables direct and precise adjustment of the output voltage's response performance through the damping ratio,while maintaining independence from control parameters and providing rejection of input voltage disturbances.The proposed control introduces a voltage loop-typed regulator to cover the time-varying input and the nonlinear saturation of duty ratio,and thus a single-input single-output(SISO)second-order system of the output voltage and its reference can be established.It transforms the control problem under uncertain load disturbances to the damping ratio control of the second-order system.Moreover,current sharing control is achieved for the supply structure of parallel Buck converters by the additional regulation of the duty cycles under the premise of having little effect on the performance of voltage regulation.Simulations and hardware-in-the-loop experiments demonstrate that the parallel converters can achieve fast and smooth voltage regulation and current sharing during different PPL transients.

关 键 词：BUCK变换器 脉冲功率负载 自适应阻尼比控制 电压调节 电流均衡 舰船电力系统 

分 类 号：TM46[电气工程—电器]