电感器
控制理论(社会学)
涟漪
转换器
非线性系统
操作点
电阻抗
直流偏压
电压
工程类
拓扑(电路)
计算机科学
电子工程
物理
电气工程
量子力学
人工智能
控制(管理)
作者
Ruihua Shen,Henry Shu-Hung Chung
出处
期刊:IEEE Transactions on Power Electronics
[Institute of Electrical and Electronics Engineers]
日期:2022-01-01
卷期号:37 (7): 8582-8595
被引量:1
标识
DOI:10.1109/tpel.2022.3143830
摘要
Typical dc distribution networks contain source-interface dc–dc converters for feeding constant power loads (CPLs). Instability may arise if the interaction between the output impedance of the converters and the input impedance of the CPLs does not satisfy stability criteria. A simple technique that aims to deal with such issue is proposed. Instead of shaping the network characteristics with sophisticated control laws or introducing passive or active damping, the proposed idea is based on using an output filter with a nonlinear inductor in the converter to enhance small-signal and large-signal stabilities. First, the eigenvalues of the Jacobian at the equilibrium points can be maintained in the left-half plane. Second, the system state can always be reverted to the target operating point after large-signal perturbation. Furthermore, the physical size of the nonlinear inductor is comparable with that of the fixed-value inductor in the output filter without sacrificing ripple current requirement. The proposed method has been evaluated on a downscaled system with the power level of 80 W and bus voltage of 24 V. The experimental results are in good agreement with the theoretical predictions.
科研通智能强力驱动
Strongly Powered by AbleSci AI