Abstract
Nowadays, with modern society's increasing demand for power conversion, there are increasing demands towards high power converters. Cascaded structure is frequently used to build high power converters. For example, MMC is adopted in flexible HVDC [1] and series connected SiC MOSFETs are used in DC/DC converters [2]. Among these applications, the common point is that cascaded structure raises working voltage, meanwhile the requirements for insulation are improved. In these applications, traditional integrated heatsink structure is not applicable any more, therefore this paper proposes a modular heatsink design, which reduces the insulation stress a lot. Besides, the analytical model between wind speed and heat dissipation effect is established which shows the heat dissipation effect does not increase linearly with wind speed, hence a trade-off design principle is proposed. Finally, the simulation and experimental results verify the validity of proposed methods and the accuracy of analysis.
Original language | English |
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Title of host publication | 2020 IEEE 9th International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 830-833 |
Number of pages | 4 |
ISBN (Electronic) | 978-1-7281-5301-8 |
DOIs | |
Publication status | Published - 9 Mar 2021 |
Externally published | Yes |
Event | 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia - Nanjing, China Duration: 29 Nov 2020 → 2 Dec 2020 Conference number: 9 http://www.ipemc2020.com/ |
Conference
Conference | 9th IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia |
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Abbreviated title | IPEMC 2020-ECCE Asia |
Country/Territory | China |
City | Nanjing |
Period | 29/11/20 → 2/12/20 |
Internet address |
Funding
This work is sponsored by the National Nature Science Foundation of China (51925702,U1834205,51877192).
Funders | Funder number |
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National Natural Science Foundation of China | 51877192, U1834205, 51925702 |
Keywords
- high power conversions
- modular heatsink design
- voltage insulation stress
- wind speed optimization