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V2控制Buck变换器的二阶离散迭代映射模型,在其基础上绘制了输出电容及其等效串联电阻（equivalent series resistance, ESR）变化时的分岔图,研究了输出电容时间常数对V2控制Buck变换器的动力学特性的影响。研究结果表明,随着输出电容时间常数的逐渐减小, V2控制Buck变换器具有从稳定的连续导电模式（continuous conduction mode, CCM）周期1态逐渐演变到CCM周期2态、CCM周期4态、CCM周期8态、CCM混沌态、断续导电模式（discontinuous conduction mode, DCM）混沌态的动力学行为。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,并验证了分岔分析的正确性。最后,搭建了仿真和实验电路,用仿真和实验结果验证了文中理论分析的正确性。
英文摘要：
The second-order discrete iterative map model of V2-controlled Buck converter is established, based on which, the bifurcation diagrams with variation of output capacitance and its equivalent series resistance （ESR） are obtained, and the effect of output capacitance time-constant on the dynamic characteristics of V2-controlled Buck converter is investigated. It is found that with gradual reduction of output capacitance time-constant, the V2-controlled Buck converter shows the evolutive dynamic behavior from continuous conduction mode （CCM） period-1 to CCM period-2, CCM period-4, CCM period-8, CCM chaos, and discontinuous conduction mode （DCM） chaos. Jacobi matrix at a fixed point is also derived. According to this, the converter stability is analyzed by using characteristic values and maximum Lyapunov exponent, which validates the correctness of bifurcation analysis. Finally, the simulation and experimental circuits are set up, and the correctness of the 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：