Design of highly compact short-time duty power inductors for supercapacitor charging applications

作     者：Zhang, Xinsheng Wang, Ruitian Xiao, Fei Fan, Xuexin Yang, Guorun Yang, Beichao 

作者机构：Naval Univ Engn Natl Key Lab Sci & Technol Vessel Integrated Powe Wuhan 430033 Peoples R China 

出 版 物：《IET POWER ELECTRONICS》 (IET Power Electron.)

年 卷 期：2020年第13卷第18期

页      面：4377-4385页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：National Natural Science Foundation of China [51707200  51907199] 

主　　题：finite element analysis power inductors cooling supercapacitors transient analysis plates (structures) optimisation thermal analysis prototypes short-time duty power inductor multioutput supercapacitor charging applications power inductors transient thermal prediction transient thermal model multiobjective optimisation design method highly compact design medium-voltage supercapacitor water cooling plate finite-element method programming control power 400 0 kW current 182 0 A frequency 2 0 kHz voltage 15 0 kV 

摘      要：For medium-voltage, large-capacity, multi-output supercapacitor charging applications, power inductors play an important role in filtering and energy storage. For a short-time duty power inductor, the major design challenge is accurate transient thermal prediction, which goes beyond the scope of the empirical method. A transient thermal model that considers water-cooling plates was constructed to predict thermal performance. On this basis, this study presents a novel multi-objective optimisation design method, where the analytical method and the finite-element method were combined through programming control to balance accuracy and efficiency. Furthermore, a short-time duty 400 kW/182 A/2 kHz/15 kV power inductor prototype was designed and manufactured. Compared with the results of the 30-minute thermal experiment, the calculation error is no 7.0%, which is significant for the accurate and highly compact design of the short-time duty power inductor.