车载双向DC-DC变换电路改进型双闭环控制器设计
Design of Improved Double Closed-Loop Controller of Vehicle-Mounted Bi-Directional DC-DC Translation Circuit
DOI: 10.12677/JEE.2017.54036, PDF,   
作者: 徐 海, 王 亮:江苏科能电力工程咨询有限公司,江苏 南京;张海龙*:南京师范大学电气与自动化工程学院,江苏 南京
关键词: 交错并联耦合电感双闭环控制Interleaving Coupling Inductance Double-Closed-Loop Control
摘要: 本文针对交错并联Buck电路拓扑结构,进行了控制方式和改进拓扑结构的研究。在大占空比条件下,首先对传统的交错并联Buck电路采用电压电流双闭环控制,使得系统的输出更加稳定。然后将交错并联Buck电路中的分立电感合并成一个耦合电感,以此减小输出电流纹波和改善动态特性,满足系统对功率密度不断提高的要求。通过仿真验证,得出耦合系数和电压电流双闭环控制对电路性能的具体影响,从而验证了该系统的设计方案。
Abstract: In this paper, the control method and the improved topology of the staggered parallel buck circuit are studied. Under the condition of large duty cycle, the traditional double-closed-loop control of voltage and current is used to make the output of the system more stable. Then, the discrete inductors are merged into a coupling inductance in the interleaved parallel buck circuit, to reduce the output current ripple, improve the dynamic characteristics and meet the increasing requirement of power density of the system. The simulation results indicate that the coupling coefficient and the double closed-loop control have specific influences on the circuit performance, so as to verify the proposed design scheme.
文章引用:徐海, 王亮, 张海龙. 车载双向DC-DC变换电路改进型双闭环控制器设计[J]. 电气工程, 2017, 5(4): 295-305. https://doi.org/10.12677/JEE.2017.54036

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