摘要
引入输出延迟反馈控制(time-delayfeedback control,TDFC)到峰值电流控制BOOST变换器中,构建了被控系统的离散迭代模型,获取相应的Jacobian矩阵表达式.通过分析变换器在平衡点的变化规律及Jacobian矩阵特征值轨迹,确定出控制系统混沌到单周期态的TDFC反馈增益范围,并依据状态变量和占空比的收敛情况讨论了系统的稳态和动态性能,实现了对TDFC控制参数优化选择.仿真结果证实了所提控制方式的有效和理论分析的正确.
The output time-delayed feedback control（TDFC）was introduced into the control prototype of the current-mode BOOST converter.Firstly,the discrete iteration model of the controlled system was set up,and its Jacobian matrix was obtained.Based on the analysis of equilibrium point variance and Jacobian matrix eigenvalue trajectory,the range of TDFC feedback gain was determined.According to the convergence of the state variable and duty ratio,the steady-state and dynamic properties of the system were discussed,and the feedback gain of TDFC was optimized.The simulation results confirm that the proposed method is valid and the theoretical analysis holds true.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第11期6275-6281,共7页
Acta Physica Sinica
基金
国家自然科学基金(批准号:50677071)
重庆市自然科学基金重点项目(批准号:2005BA6017)资助的课题.~~
