欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
建立了谷值V2控制Boost变换器的离散迭代映射模型，在此基础上得到了输入电压、输出电容及其等效串联电阻（equivalent series resistance，ESR）变化时的分岔图，推导了不动点处的雅可比矩阵，利用特征值和最大Lyapunov指数对系统进行了稳定性分析，并验证了分岔图的正确性．重点研究了输入电压和输出电容及其ESR对谷值V2控制Boost变换器的动力学特性的影响．研究结果表明，输入电压增大时，变换器从周期1态经历1次倍周期分岔和边界碰撞分岔进入混沌状态；输出电容及其ESR具有相同的分岔路由，随着输出电容及其ESR的逐渐减小，变换器具有从周期1态经历周期2态、周期4态、周期8态、逐渐演变到混沌态的动力学行为．最后，用仿真和实验结果验证了本文理论分析的正确性．
英文摘要：
A discrete iterative map model of valley V2 controlled Boost converter is established, based on which the bifurcation diagrams are obtained with the variation of input voltage, output capacitance and its equivalent series resistance （ESR）. Jacobi matrix at a fixed point is also derived, and according to it, the converter stability is analyzed using characteristic values and maximum Lyapunov exponent, thus the correctness of bifurcation analysis is validated. The effect of input voltage, output capacitance and its ESR on the dynamic characteristics of valley V2 controlled Boost converter is mainly investigated. It is found that as the input voltage increases continuously, the valley V2 controlled Boost converter changes from continuous conduction mode （CCM） period-1 to CCM period-2 due to period-doubling bifurcation, and comes into CCM chaos due to border collision bifurcation. The converter has the same bifurcation routes at output capacitance and its ESR： with gradual reduction of output capacitance or its ESR, the valley V2 controlled Boost converter behaves the evolutive dynamic behavior from CCM period-1 to CCM period-2, CCM period-4, CCM period-8, and CCM chaos. Finally, the simulation and experimental circuits are set up, and the correctness of theoretical analysis is verified by simulation and experimental results.
同期刊论文项目
同项目期刊论文
Study on control pulse combination of pulse train controlled switching converter and its multi-perio
Effect of output capacitor ESR on dynamic performance of voltage-mode hysteretic controlled buck con
Peak Current Mode Bifrequency Control Technique for Switching DC-DC Converters in DCM With Fast Tran
Predictive Digital-Controlled Converter With Peak Current-Mode Control and Leading-Edge Modulation (
Dynamical Effects of Equivalent Series Resistance of Output Capacitor in Constant On-Time Controlled
A Current Decoupling Parallel Control Strategy of Single-Phase Inverter With Voltage and Current Dua
Unified Pulse-Width Modulation Scheme for Improved Digital-Peak-Voltage Control of Switching DC-DC C
COMPLEX DYNAMICS AND FAST-SLOW SCALE INSTABILITY IN CURRENT-MODE CONTROLLED BUCK CONVERTER WITH CONS
Comments on “PredictiveDigital-Controlled Converter With Peak Current-Mode Control and Leading-EdgeM
Constant-Frequency Peak-Ripple-Based Control of Buck Converter in CCM: Review, Unification, and Dual
Coupled-inductor boost integrated flyback converterwith high-voltage gain and ripple-free input curr
Peak current-controlled CRM flyback PFC converter with square of line voltagecompensated primary cur
Dynamical modeling and multi-period behavior analysis of voltage-mode bi-frequency controlled switch
期刊信息
位置：