双并联Boost变换器的延迟反馈控制技术  

Delayed Feedback Control in the Parallel-Connected Boost Converters

作　　者：金爱娟[1] 徐大壮 陈溢[1] 马忠雪 赵攀攀[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《电子科技》2015年第11期78-81,85,共5页Electronic Science and Technology

摘　　要：在电流模式下,峰值电流控制的并联Boost变换器具有分叉混沌等非线性的特性,为消除电路中的混沌现象,提出了一种延迟电流反馈的控制策略。基于闭环系统精确的离散时间模型,推导出了在电流控制模式下的并联Boost变换器主要电路参数变化时的迭代公式。利用Matlab软件进行仿真,并在不同情况下通过对比,验证了延迟电流反馈控制策略具有较好的抑制混沌的能力及鲁棒性。Under the peak-current-control of the current mode, nonlinear characteristics of bifurcation and cha- os exist in the parallel Boost converter. To eliminate the phenomenon of the chaos in the circuit, a current-delay feedback control strategy is proposed. Based on the accurate discrete mode of the closed parallel system, iterative formulas are derived when the main circuit parameters of the parallel Boost converter change under the current-control mode. The chaos suppression ability and the robustness of current-delay feedback control strategy are verified by both Matlab simulation and the experimental results under different conditions.

关 键 词：分叉混沌 并联Boost变换器 峰值电流控制 延迟电流反馈控制 

分 类 号：TM46[电气工程—电器]