Iterative Electrical–Thermal Coupled Simulation Method of Automotive Power Module Used in Electric Power Steering System
This paper presents a multi-physics analysis coupling the electrical and thermal properties of a power module. As power modules have multi-physical behaviors, it is important to simulate their multi-physical characteristics. Simulations of these characteristics have been separately conducted using s...
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| Format: | Article |
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IEEE
2021-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9641783/ |
| _version_ | 1798026681540149248 |
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| author | Jangmuk Lim Jaejin Jeon Jihwan Seong Jaehyun Cho Seong Moo Cho Kwang Soo Kim Sang Won Yoon |
| author_facet | Jangmuk Lim Jaejin Jeon Jihwan Seong Jaehyun Cho Seong Moo Cho Kwang Soo Kim Sang Won Yoon |
| author_sort | Jangmuk Lim |
| collection | DOAJ |
| description | This paper presents a multi-physics analysis coupling the electrical and thermal properties of a power module. As power modules have multi-physical behaviors, it is important to simulate their multi-physical characteristics. Simulations of these characteristics have been separately conducted using specific software; however, as these characteristics are often coupled, it is difficult to fully understand the multi-physical nature of power modules. This paper proposes a method to analyze the coupled characteristics of a power module in an iterative manner. The analyzed module is designed for an automotive electric power steering (EPS) system. We fabricated the EPS module and measured its electrical and thermal characteristics, which were used for reference. For the coupled simulation, we employed ANSYS Icepak and Q3D Extractor for thermal and electrical simulations, respectively, linked them to the ANSYS workbench environment, and conducted an iterative feedback simulation until the simulated results converged. The coupled simulation demonstrated that the parasitic resistance and volume loss density of the power module are increased by ~50% compared to the those obtained from a separately conducted electrical simulation due to the impact of the linked thermal simulation. As a result, the simulated thermal resistance increased to 0.26 K/W, which is almost identical to the measured value of ~0.27 K/W. Therefore, our iterative electrical–thermal coupled simulation exhibits more accurate results than the conventional separate simulations. |
| first_indexed | 2024-04-11T18:40:22Z |
| format | Article |
| id | doaj.art-1130b00e328c45df8aa43671b642f2a2 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-11T18:40:22Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-1130b00e328c45df8aa43671b642f2a22022-12-22T04:09:02ZengIEEEIEEE Access2169-35362021-01-01916471216471910.1109/ACCESS.2021.31335309641783Iterative Electrical–Thermal Coupled Simulation Method of Automotive Power Module Used in Electric Power Steering SystemJangmuk Lim0https://orcid.org/0000-0003-4701-4277Jaejin Jeon1https://orcid.org/0000-0001-7747-1722Jihwan Seong2https://orcid.org/0000-0003-3601-1740Jaehyun Cho3Seong Moo Cho4Kwang Soo Kim5Sang Won Yoon6https://orcid.org/0000-0002-0201-8031Department of Automotive Engineering, Hanyang University, Seoul, South KoreaDepartment of Automotive Engineering, Hanyang University, Seoul, South KoreaDepartment of Automotive Engineering, Hanyang University, Seoul, South KoreaDepartment of Automotive Engineering (Automotive-Computer Convergence), Hanyang University, Seoul, South KoreaPower Electronics Laboratory, LG Electronics Inc., Seoul, South KoreaPower Electronics Laboratory, LG Electronics Inc., Seoul, South KoreaDepartment of Automotive Engineering, Hanyang University, Seoul, South KoreaThis paper presents a multi-physics analysis coupling the electrical and thermal properties of a power module. As power modules have multi-physical behaviors, it is important to simulate their multi-physical characteristics. Simulations of these characteristics have been separately conducted using specific software; however, as these characteristics are often coupled, it is difficult to fully understand the multi-physical nature of power modules. This paper proposes a method to analyze the coupled characteristics of a power module in an iterative manner. The analyzed module is designed for an automotive electric power steering (EPS) system. We fabricated the EPS module and measured its electrical and thermal characteristics, which were used for reference. For the coupled simulation, we employed ANSYS Icepak and Q3D Extractor for thermal and electrical simulations, respectively, linked them to the ANSYS workbench environment, and conducted an iterative feedback simulation until the simulated results converged. The coupled simulation demonstrated that the parasitic resistance and volume loss density of the power module are increased by ~50% compared to the those obtained from a separately conducted electrical simulation due to the impact of the linked thermal simulation. As a result, the simulated thermal resistance increased to 0.26 K/W, which is almost identical to the measured value of ~0.27 K/W. Therefore, our iterative electrical–thermal coupled simulation exhibits more accurate results than the conventional separate simulations.https://ieeexplore.ieee.org/document/9641783/Electric power steering systempower modulethermal resistancemulti-physics simulation |
| spellingShingle | Jangmuk Lim Jaejin Jeon Jihwan Seong Jaehyun Cho Seong Moo Cho Kwang Soo Kim Sang Won Yoon Iterative Electrical–Thermal Coupled Simulation Method of Automotive Power Module Used in Electric Power Steering System IEEE Access Electric power steering system power module thermal resistance multi-physics simulation |
| title | Iterative Electrical–Thermal Coupled Simulation Method of Automotive Power Module Used in Electric Power Steering System |
| title_full | Iterative Electrical–Thermal Coupled Simulation Method of Automotive Power Module Used in Electric Power Steering System |
| title_fullStr | Iterative Electrical–Thermal Coupled Simulation Method of Automotive Power Module Used in Electric Power Steering System |
| title_full_unstemmed | Iterative Electrical–Thermal Coupled Simulation Method of Automotive Power Module Used in Electric Power Steering System |
| title_short | Iterative Electrical–Thermal Coupled Simulation Method of Automotive Power Module Used in Electric Power Steering System |
| title_sort | iterative electrical x2013 thermal coupled simulation method of automotive power module used in electric power steering system |
| topic | Electric power steering system power module thermal resistance multi-physics simulation |
| url | https://ieeexplore.ieee.org/document/9641783/ |
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