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Design Optimization of Hybrid-Switch Soft-Switching Inverters Using Multiscale Electrothermal Simulation.
John Reichl1, Jih-Sheng Lai2, Allen Hefner3
1Bradley Department of Electrical and Computer Engineering, Future Energy Electronics Center, Virginia Tech, Blacksburg, VA 24060 USA, and also with the National Institute of Standards and Technology, Semiconductor Electronics Division, Gaitherburg, MD 20899 USA.
IEEE Transactions on Power Electronics
|September 26, 2019
Summary
This study introduces a new electrothermal simulation method to optimize soft-switching inverter designs. The optimized hybrid switch inverter design significantly reduces power loss and cooling needs.
Area of Science:
- Electrical Engineering
- Power Electronics
- Thermal Management
Background:
- Optimizing hybrid switch soft-switching inverters is crucial for efficiency.
- Existing designs require significant computational resources for parametric studies.
Purpose of the Study:
- To develop and validate a multiscale electrothermal simulation approach for optimizing soft-switching inverter design.
- To minimize total power loss and cooling requirements through parametric design adjustments.
Main Methods:
- Utilized a library of dynamic electrothermal component models.
- Optimized individual device area, snubber capacitor, and gate drive timing.
- Performed extensive parametric studies to reduce simulation time.
Main Results:
- Achieved a 16% reduction in power loss compared to the baseline design.
- Reduced cooling requirements by 42%.
- Validated electrical and thermal models against experimental data.
Conclusions:
- The multiscale electrothermal simulation approach effectively optimizes soft-switching inverter designs.
- The proposed method offers significant improvements in efficiency and thermal performance.
- This approach enables rapid exploration of design variables for enhanced performance.
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