单电感双输出Boost变换器的目标全息反馈非线性控制  

Objective holographic feedbacks nonlinear control of single inductor dual output Boost converter

作　　者：李畸勇[1] 潘恒宇 刘斌[1] 谢敏 LI Ji-yong;PAN Heng-yu;LIU Bin;XIE Min(College of Electrical Engineering,Guangxi University,Nanning 530004,China;Engineering Training Center,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]广西大学电气工程学院,广西南宁530004 [2]西南交通大学工程训练中心,四川成都610031

出　　处：《广西大学学报（自然科学版）》2021年第4期962-972,共11页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(61863003)。

摘　　要：单电感双输出Boost变换器具有非线性特性且输出端存在交叉调节,这给控制器的设计带来困难。为此文中采用目标全息反馈非线性控制方法对单电感双输出Boost变换器的控制器进行设计,以减少系统的交叉调节和其非线性特性带来的问题。首先,建立所研究系统的仿射非线性模型,选取系统状态变量与其对应的参考值形成偏差方程,并令该方程符合布鲁诺夫斯基标准型。然后使用线性最优控制理论对偏差方程形成的线性系统进行设计。同时文中还推导出目标全息反馈非线性控制方法的控制本质是可通过选取反馈参数来配置变换器系统的极点。最后仿真实验结果证明了采用的目标全息反馈非线性控制策略相比于共模差模电压控制策略有着更强的鲁棒性和更快的调节速度,并能有效的抑制系统的交叉调节。The single-inductor dual-output Boost converter has nonlinear characteristics and cross-regulation at the output,which brings difficulties to the design of the controller.To reduce the problems caused by the system's cross regulation and its nonlinear characteristics,this research uses the objective holographic feedbacks nonlinear control method to design the controller of the single-inductor dual-output Boost converter.Firstly,we established the affine nonlinear model of the system under study,selected the system state variable and its corresponding reference value to form the deviation equation,and made the equation conform to Brunovsky standard form.Then we used the linear optimal control theory to design the linear system formed by the deviation equation.This paper also proves that the control essence of objective holographic feedbacks nonlinear control method is to configure the pole position of the converter system by selecting feedback parameters.Finally,the simulation results show that the adopted objective holographic feedbacks nonlinear control strategy has stronger robustness and faster adjustment speed than the common-mode differential-mode voltage control strategy,and can suppress the cross-regulation of the system effectively.

关 键 词：单电感双输出Boost变换器 目标全息反馈非线性控制 交叉调节 布鲁诺夫斯基标准型 极点配置 

分 类 号：TU473.1[建筑科学—结构工程]