Rapid Design of Litz Wire Using Surrogate Assisted Optimization Embedding Adjacent Trust Region

Jiahua Lyu1,2; Hong Cai Chen3; Qingsha S. Cheng1; Yang Zhang4; Yaping Du2

2024

10.1109/TCPMT.2024.3423003

IEEE Transactions on Components, Packaging and Manufacturing Technology   影响因子和分区

2156-3985

Litz wire is essential in minimizing eddy losses in high-frequency power devices. However, accurately evaluating litz wire impedance is challenging due to the low precision of analytical methods and the high computational demands of numerical simulations. To address this, we propose a multi-fidelity surrogate-assisted optimization framework embedding with an adaptive trust region (MF-TR-SAO) that efficiently designs litz wires through numerical simulation. This approach merges multi-fidelity modeling with space mapping to rapidly achieve global optimization. We validate the framework’s performance using Zakharov and Ackley functions and demonstrate its superiority over other optimization techniques. The MF-TR-SAO is then applied to the design of litz wires comprising hundreds of strands. The optimized litz wire design exhibits an 18%-36% performance enhancement in terms of power loss reduction compared to a conventional single-bundle wire while also considering cost-effectiveness and computational efficiency. This algorithm significantly advances litz wire manufacturing by optimizing for power loss, cost, and design speed.

EI

第一

1.Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China
2.Department of Building Environment and Energy Engineering, Hong Kong Polytechnic University, Hong Kong, China
3.School of Automation, Southeast University, Nanjing, China
4.College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, China

Jiahua Lyu,Hong Cai Chen,Qingsha S. Cheng,et al. Rapid Design of Litz Wire Using Surrogate Assisted Optimization Embedding Adjacent Trust Region[J]. IEEE Transactions on Components, Packaging and Manufacturing Technology,2024,PP(99).

Jiahua Lyu,Hong Cai Chen,Qingsha S. Cheng,Yang Zhang,&Yaping Du.(2024).Rapid Design of Litz Wire Using Surrogate Assisted Optimization Embedding Adjacent Trust Region.IEEE Transactions on Components, Packaging and Manufacturing Technology,PP(99).

Jiahua Lyu,et al."Rapid Design of Litz Wire Using Surrogate Assisted Optimization Embedding Adjacent Trust Region".IEEE Transactions on Components, Packaging and Manufacturing Technology PP.99(2024).