Adaptive Control of Four-Quadrant DC-DC Converters in Both Discontinuous and Continuous Conduction Modes
The inherently different dynamics of a DC-DC converter while operating in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) necessitate an advanced controller to control the inductor current. A conventional PI controller cannot be used across both modes since it does not...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/16/4187 |
| _version_ | 1797558409337241600 |
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| author | Hicham Chaoui Mohamad Alzayed Okezie Okoye Mehdy Khayamy |
| author_facet | Hicham Chaoui Mohamad Alzayed Okezie Okoye Mehdy Khayamy |
| author_sort | Hicham Chaoui |
| collection | DOAJ |
| description | The inherently different dynamics of a DC-DC converter while operating in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) necessitate an advanced controller to control the inductor current. A conventional PI controller cannot be used across both modes since it does not guarantee a smooth transition between both modes. Furthermore, in time-varying input-output voltage applications of the four-quadrant converter such as in battery charging applications, the location of the boundary between the CCM and the DCM changes dynamically, creating an uncertainty. Therefore, a robust controller is required to accurately track the inductor current in the presence of uncertainties. Thus, an adaptive controller is proposed in this work, which is based on the general inverse model of the four-quadrant converter in both modes. Moreover, gain scheduling is used to switch the parameters of the controller as the converter transits between the DCM and the CCM. The adaptability and effectiveness of the controller in ensuring a smooth transition is validated by numerical simulations conducted on various converter topologies. Experimental results are also presented for a buck converter. |
| first_indexed | 2024-03-10T17:31:05Z |
| format | Article |
| id | doaj.art-df854d8d496c48f7a57c348738b0b72b |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T17:31:05Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-df854d8d496c48f7a57c348738b0b72b2023-11-20T10:01:53ZengMDPI AGEnergies1996-10732020-08-011316418710.3390/en13164187Adaptive Control of Four-Quadrant DC-DC Converters in Both Discontinuous and Continuous Conduction ModesHicham Chaoui0Mohamad Alzayed1Okezie Okoye2Mehdy Khayamy3Intelligent Robotic and Energy Systems (IRES), Department of Electronics, Carleton University, 1125 Colonel By Dr, Ottawa, ON K1S 5B6, CanadaIntelligent Robotic and Energy Systems (IRES), Department of Electronics, Carleton University, 1125 Colonel By Dr, Ottawa, ON K1S 5B6, CanadaElectrical & Computer Engineering, Tennessee Technological University, 220 W. 10th Street, Cookeville, TN 38505, USAElectrical & Computer Engineering, Tennessee Technological University, 220 W. 10th Street, Cookeville, TN 38505, USAThe inherently different dynamics of a DC-DC converter while operating in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) necessitate an advanced controller to control the inductor current. A conventional PI controller cannot be used across both modes since it does not guarantee a smooth transition between both modes. Furthermore, in time-varying input-output voltage applications of the four-quadrant converter such as in battery charging applications, the location of the boundary between the CCM and the DCM changes dynamically, creating an uncertainty. Therefore, a robust controller is required to accurately track the inductor current in the presence of uncertainties. Thus, an adaptive controller is proposed in this work, which is based on the general inverse model of the four-quadrant converter in both modes. Moreover, gain scheduling is used to switch the parameters of the controller as the converter transits between the DCM and the CCM. The adaptability and effectiveness of the controller in ensuring a smooth transition is validated by numerical simulations conducted on various converter topologies. Experimental results are also presented for a buck converter.https://www.mdpi.com/1996-1073/13/16/4187DC-DC convertersadaptive controlDCMCCM |
| spellingShingle | Hicham Chaoui Mohamad Alzayed Okezie Okoye Mehdy Khayamy Adaptive Control of Four-Quadrant DC-DC Converters in Both Discontinuous and Continuous Conduction Modes Energies DC-DC converters adaptive control DCM CCM |
| title | Adaptive Control of Four-Quadrant DC-DC Converters in Both Discontinuous and Continuous Conduction Modes |
| title_full | Adaptive Control of Four-Quadrant DC-DC Converters in Both Discontinuous and Continuous Conduction Modes |
| title_fullStr | Adaptive Control of Four-Quadrant DC-DC Converters in Both Discontinuous and Continuous Conduction Modes |
| title_full_unstemmed | Adaptive Control of Four-Quadrant DC-DC Converters in Both Discontinuous and Continuous Conduction Modes |
| title_short | Adaptive Control of Four-Quadrant DC-DC Converters in Both Discontinuous and Continuous Conduction Modes |
| title_sort | adaptive control of four quadrant dc dc converters in both discontinuous and continuous conduction modes |
| topic | DC-DC converters adaptive control DCM CCM |
| url | https://www.mdpi.com/1996-1073/13/16/4187 |
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