A single-objective modulated model predictive control for a multilevel flying-capacitor converter in a DC microgrid
This article presents a single-objective modulated model predictive control for a bidirectional dc-dc flying-capacitor (FC) converter in a microgrid. The presence of an FC facilitates the converter to integrate a low-voltage battery to a high-voltage dc bus at reduced voltage stress on its power swi...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | https://hdl.handle.net/10356/155552 |
| _version_ | 1826115580019605504 |
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| author | Jayan, Vijesh Amer Mohammad Yusuf Mohammad Ghias |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Jayan, Vijesh Amer Mohammad Yusuf Mohammad Ghias |
| author_sort | Jayan, Vijesh |
| collection | NTU |
| description | This article presents a single-objective modulated model predictive control for a bidirectional dc-dc flying-capacitor (FC) converter in a microgrid. The presence of an FC facilitates the converter to integrate a low-voltage battery to a high-voltage dc bus at reduced voltage stress on its power switches. The converter in such a configuration demands a multiobjective controller to accomplish dc bus and FC voltage regulations and bidirectional power flow. The proposed controller realizes these multiple control objectives by determining the optimum duty ratio for the power switches using a single-objective cost function based on the battery current. In doing so, the converter realizes its multiple control objectives without weighting factors in the cost function and operates its power switches at a fixed switching frequency. The proposed controller also eliminates an additional control loop by utilizing an improved dynamic reference model to generate an appropriate battery current reference for the dc bus voltage regulation and bidirectional power flow. Finally, the proposed system is validated experimentally under step response of the dc bus voltage, load, PV power, and system parameter variations, and compared with a finite control set model predictive control to prove its effectiveness. |
| first_indexed | 2024-10-01T03:57:49Z |
| format | Journal Article |
| id | ntu-10356/155552 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:57:49Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1555522022-03-04T02:05:16Z A single-objective modulated model predictive control for a multilevel flying-capacitor converter in a DC microgrid Jayan, Vijesh Amer Mohammad Yusuf Mohammad Ghias School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Predictive Control Voltage Control Control in Power Electronics This article presents a single-objective modulated model predictive control for a bidirectional dc-dc flying-capacitor (FC) converter in a microgrid. The presence of an FC facilitates the converter to integrate a low-voltage battery to a high-voltage dc bus at reduced voltage stress on its power switches. The converter in such a configuration demands a multiobjective controller to accomplish dc bus and FC voltage regulations and bidirectional power flow. The proposed controller realizes these multiple control objectives by determining the optimum duty ratio for the power switches using a single-objective cost function based on the battery current. In doing so, the converter realizes its multiple control objectives without weighting factors in the cost function and operates its power switches at a fixed switching frequency. The proposed controller also eliminates an additional control loop by utilizing an improved dynamic reference model to generate an appropriate battery current reference for the dc bus voltage regulation and bidirectional power flow. Finally, the proposed system is validated experimentally under step response of the dc bus voltage, load, PV power, and system parameter variations, and compared with a finite control set model predictive control to prove its effectiveness. Ministry of Education (MOE) Accepted version supported by the School of Electrical and Electronic Engineering at Nanyang Technological University, Ministry of Education, Singapore, under Grant AcRF TIER 1-2018-T1-002-109 (RG 171/18) 2022-03-04T01:49:52Z 2022-03-04T01:49:52Z 2022 Journal Article Jayan, V. & Amer Mohammad Yusuf Mohammad Ghias (2022). A single-objective modulated model predictive control for a multilevel flying-capacitor converter in a DC microgrid. IEEE Transactions On Power Electronics, 37(2), 1560-1569. https://dx.doi.org/10.1109/TPEL.2021.3109048 0885-8993 https://hdl.handle.net/10356/155552 10.1109/TPEL.2021.3109048 2-s2.0-85117363159 2 37 1560 1569 en AcRF TIER 1-2018-T1-002-109 RG 171/18 IEEE Transactions on Power Electronics © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/TPEL.2021.3109048. application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Predictive Control Voltage Control Control in Power Electronics Jayan, Vijesh Amer Mohammad Yusuf Mohammad Ghias A single-objective modulated model predictive control for a multilevel flying-capacitor converter in a DC microgrid |
| title | A single-objective modulated model predictive control for a multilevel flying-capacitor converter in a DC microgrid |
| title_full | A single-objective modulated model predictive control for a multilevel flying-capacitor converter in a DC microgrid |
| title_fullStr | A single-objective modulated model predictive control for a multilevel flying-capacitor converter in a DC microgrid |
| title_full_unstemmed | A single-objective modulated model predictive control for a multilevel flying-capacitor converter in a DC microgrid |
| title_short | A single-objective modulated model predictive control for a multilevel flying-capacitor converter in a DC microgrid |
| title_sort | single objective modulated model predictive control for a multilevel flying capacitor converter in a dc microgrid |
| topic | Engineering::Electrical and electronic engineering Predictive Control Voltage Control Control in Power Electronics |
| url | https://hdl.handle.net/10356/155552 |
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