摘要
由于Boost变换器在一定的电路参数条件下会出现分岔和混沌行为,在此状态下它的工作会受到很大影响,并产生不稳定的现象,因此引入控制律对该现象进行控制。基于反馈的设计思想,提出一种二次电压反馈的非线性反馈控制律,通过选取合适的控制系数,可以将变换器上述行为控制到单周期的运行状态。通过仿真试验结果的分析,该策略可以简单地调整非线性反馈系数实现变换器运行轨道的改变,并且该参数可以根据分岔图进行选取,从而很容易对控制器进行设计,在工程上易于实现。
Due to the bifurcation and chaos behavior of Boost converter under certain circuit parameters,its work will be greatly affected and unstable phenomenon will occur in this state the control law is introduced to control this phenomenon.Based on the feedback design idea,a nonlinear feedback control law with secondary voltage feedback is proposed.By selecting the appropriate control coefficient,the above behavior of the converter can be controlled to a single cycle operation state.Through the analysis of the simulation results,the strategy can simply adjust the nonlinear feedback coefficient to change the operation track of the converter,and the parameters can be selected according to the bifurcation diagram,so it is easy to design the controller and easy to implement in engineering.
作者
马幼捷
房磊
周雪松
王宇隆
MA Youjie;FANG Lei;ZHOU Xuesong;WANG Yulong(School of Electrical Engineering and Automation,Tianjin University of Technology,Tianjin 300384,China)
出处
《电工技术》
2023年第8期7-11,共5页
Electric Engineering
