Effects of Key Parameters of Integrated Power System on Vehicle Stability

被引：0
|
作者：
Gao Q. [1 ]
Liao Z. [1 ]
Yuan D. [1 ]
Liu C. [1 ]
机构：
[1] Department of Weapons and Control Engineering, Academy of Army Armored Force, Beijing
来源：
Liao, Zili (liaozili19740309@sohu.com) | 1727年 / China Ordnance Industry Corporation卷 / 41期
关键词：
Criterion of impedance ratio; Small-signal model; System stability; Vehicular integrated power system;
D O I：
10.3969/j.issn.1000-1093.2020.09.004
中图分类号：
学科分类号：
摘要：
The instability of the vehicular integrated power system due to its limited volume capacity, more converters and complex working condition is studied. The small signal models of each source and load converter are proposed, from where the output impedance and load input impedance are obtained. The stability criterion of small signal of the vehicular integrated power system is established based on an improved impedance criterion in which the requirements of both the system amplitude and the phase margin are considered. The effects of super-capacitor, filter inductor of DC/DC converter, DC-link capacitor, and speed and torque of driving motor on the system in engine-off operation mode are analyzed by using Bode diagram. Finally, the stability criterion and the theoretical analysis are validated using the simulated results. The methods are used for the evaluation of system stability and the optimization of system design. © 2020, Editorial Board of Acta Armamentarii. All right reserved.
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页码：1727 / 1735
页数：8
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