Heat Dissipation Structure Optimization of Inverter Based on the Optimal Control Strategy
In order to improve the reliability of the IGBT module used in the inverter for permanent magnet synchronous motor of electric vehicle, this paper studied the reliability of the inverter from two aspects: heat loss and heat dissipation. Through the loss comparison analysis of the IGBT module in the...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Control and Information Technology
2020-01-01
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| Series: | Kongzhi Yu Xinxi Jishu |
| Subjects: | |
| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2020.01.200 |
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| Summary: | In order to improve the reliability of the IGBT module used in the inverter for permanent magnet synchronous motor of electric vehicle, this paper studied the reliability of the inverter from two aspects: heat loss and heat dissipation. Through the loss comparison analysis of the IGBT module in the inverter under the same condition of d-axis armature current zero (id = 0) and maximum torque per ampere (MTPA), it is found that the MTPA control strategy is better than the id = 0 control strategy. Then,based on the MTPA control strategy, a heat pipe and air cooling combined cooling structure was designed. Compared with the original air cooling structure, the new cooling method can reduce the maximum working temperature of the chips by 8.49 ℃ . In this paper, the optimal Latin hypercube sampling is used to construct the response surface surrogate model (RSM), and the multi-island genetic algorithm (MIGA) is used to optimize the surrogate model. It is verified that the optimized heat pipe air-cooled heat dissipation structure reduces the maximum chip temperature by 15.12 ℃ , which effectively improves the thermal reliability of the IGBT module. |
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| ISSN: | 2096-5427 |