On-Line Multistep Predictive Spectral Control of the Distortion in Switched-Mode Converters
In automotive power electronics, distortion and electromagnetic interference (EMI) generated by the switching action of power semiconductors can be a significant challenge for the design of a compact, lightweight vehicle. As semiconductor switching frequencies increase, e.g., through the introductio...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9869815/ |
| _version_ | 1811240860646375424 |
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| author | Christian Korte Till Luetje Nima Tashakor Stefan Goetz |
| author_facet | Christian Korte Till Luetje Nima Tashakor Stefan Goetz |
| author_sort | Christian Korte |
| collection | DOAJ |
| description | In automotive power electronics, distortion and electromagnetic interference (EMI) generated by the switching action of power semiconductors can be a significant challenge for the design of a compact, lightweight vehicle. As semiconductor switching frequencies increase, e.g., through the introduction of new materials, such as gallium nitride and silicon carbide, this problem becomes more severe. We present a control scheme for an automotive dc-to-dc converter that reduces the EMI generated by shaping switching distortion predictively at the run time. The multistep model-predictive control scheme chooses the subsequent switching state that optimizes the output spectrum according to predefined criteria. To achieve real-time operation, it evaluates the possible switching state candidates for the next modulation step without explicitly solving a single Fourier transform. In addition, the switching rate and voltage ripple are controlled in a single unified control law. We present and experimentally validate that the control scheme can indeed run at real time already with currently available mid-range hardware. The results demonstrate that the largest spectral peak of the switching distortion can be decreased by 48 dB compared to conventional pulse-width modulation. Furthermore, spectral gaps can be implemented in the output distortion and altered in real-time, allowing certain frequency bands—e.g., bands used by other sensitive electronics such as sensors, communication busses, or tuners—to be kept free of EMI from the converter’s switching actions. |
| first_indexed | 2024-04-12T13:27:19Z |
| format | Article |
| id | doaj.art-6fdeacdd63d247ee8c0a5af05fdb9fb8 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-12T13:27:19Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-6fdeacdd63d247ee8c0a5af05fdb9fb82022-12-22T03:31:16ZengIEEEIEEE Access2169-35362022-01-011010655610656710.1109/ACCESS.2022.32029789869815On-Line Multistep Predictive Spectral Control of the Distortion in Switched-Mode ConvertersChristian Korte0Till Luetje1Nima Tashakor2https://orcid.org/0000-0001-8052-9593Stefan Goetz3Breathe Battery Technologies, London, U.K.Mercedes-Benz AG, Stuttgart, GermanyDepartment of Electrical and Computer Engineering, Technical University of Kaiserslautern, Kaiserslautern, GermanyDepartment of Electrical and Computer Engineering, Duke University, Durham, NC, USAIn automotive power electronics, distortion and electromagnetic interference (EMI) generated by the switching action of power semiconductors can be a significant challenge for the design of a compact, lightweight vehicle. As semiconductor switching frequencies increase, e.g., through the introduction of new materials, such as gallium nitride and silicon carbide, this problem becomes more severe. We present a control scheme for an automotive dc-to-dc converter that reduces the EMI generated by shaping switching distortion predictively at the run time. The multistep model-predictive control scheme chooses the subsequent switching state that optimizes the output spectrum according to predefined criteria. To achieve real-time operation, it evaluates the possible switching state candidates for the next modulation step without explicitly solving a single Fourier transform. In addition, the switching rate and voltage ripple are controlled in a single unified control law. We present and experimentally validate that the control scheme can indeed run at real time already with currently available mid-range hardware. The results demonstrate that the largest spectral peak of the switching distortion can be decreased by 48 dB compared to conventional pulse-width modulation. Furthermore, spectral gaps can be implemented in the output distortion and altered in real-time, allowing certain frequency bands—e.g., bands used by other sensitive electronics such as sensors, communication busses, or tuners—to be kept free of EMI from the converter’s switching actions.https://ieeexplore.ieee.org/document/9869815/Electromagnetic interferenceDC-to-DC power conversiondistortionpredictive controlmodulation |
| spellingShingle | Christian Korte Till Luetje Nima Tashakor Stefan Goetz On-Line Multistep Predictive Spectral Control of the Distortion in Switched-Mode Converters IEEE Access Electromagnetic interference DC-to-DC power conversion distortion predictive control modulation |
| title | On-Line Multistep Predictive Spectral Control of the Distortion in Switched-Mode Converters |
| title_full | On-Line Multistep Predictive Spectral Control of the Distortion in Switched-Mode Converters |
| title_fullStr | On-Line Multistep Predictive Spectral Control of the Distortion in Switched-Mode Converters |
| title_full_unstemmed | On-Line Multistep Predictive Spectral Control of the Distortion in Switched-Mode Converters |
| title_short | On-Line Multistep Predictive Spectral Control of the Distortion in Switched-Mode Converters |
| title_sort | on line multistep predictive spectral control of the distortion in switched mode converters |
| topic | Electromagnetic interference DC-to-DC power conversion distortion predictive control modulation |
| url | https://ieeexplore.ieee.org/document/9869815/ |
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