Distribution power loss mitigation of parallel-connected distributed energy resources in low-voltage DC microgrids using a lagrange multiplier-based adaptive droop control
This article presents a Lagrange multiplier-based adaptive droop control to mitigate distribution power loss of parallel-connected distributed energy resource (DER) systems in dc microgrids. The distribution power loss comprising line loss and converter loss can be modeled as a quadratic function of...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/160761 |
| _version_ | 1811682293891203072 |
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| author | Jiang, Yajie Yang, Yun Tan, Siew-Chong Hui, Ron Shu-Yuen |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Jiang, Yajie Yang, Yun Tan, Siew-Chong Hui, Ron Shu-Yuen |
| author_sort | Jiang, Yajie |
| collection | NTU |
| description | This article presents a Lagrange multiplier-based adaptive droop control to mitigate distribution power loss of parallel-connected distributed energy resource (DER) systems in dc microgrids. The distribution power loss comprising line loss and converter loss can be modeled as a quadratic function of the output currents of the DER systems, which can be optimized by the tertiary-layer Lagrange multiplier method to obtain the optimal output current references for the secondary-layer adaptive droop control. The output currents are compensated by the adaptive droop control to provide output voltage references for the primary-layer local dual-loop control, which is a conventional local control scheme for the regulations of grid-connected dc-dc converters. Both simulation and experimental results validate that the proposed control strategy can reduce the distribution power loss of parallel-connected DER systems in 48 V dc microgrids as compared to the conventional control strategy by only optimizing the line loss in different cases. |
| first_indexed | 2024-10-01T03:54:33Z |
| format | Journal Article |
| id | ntu-10356/160761 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:54:33Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1607612022-08-02T06:53:34Z Distribution power loss mitigation of parallel-connected distributed energy resources in low-voltage DC microgrids using a lagrange multiplier-based adaptive droop control Jiang, Yajie Yang, Yun Tan, Siew-Chong Hui, Ron Shu-Yuen School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Adaptive Droop Control Lagrange Multiplier Method This article presents a Lagrange multiplier-based adaptive droop control to mitigate distribution power loss of parallel-connected distributed energy resource (DER) systems in dc microgrids. The distribution power loss comprising line loss and converter loss can be modeled as a quadratic function of the output currents of the DER systems, which can be optimized by the tertiary-layer Lagrange multiplier method to obtain the optimal output current references for the secondary-layer adaptive droop control. The output currents are compensated by the adaptive droop control to provide output voltage references for the primary-layer local dual-loop control, which is a conventional local control scheme for the regulations of grid-connected dc-dc converters. Both simulation and experimental results validate that the proposed control strategy can reduce the distribution power loss of parallel-connected DER systems in 48 V dc microgrids as compared to the conventional control strategy by only optimizing the line loss in different cases. 2022-08-02T06:53:34Z 2022-08-02T06:53:34Z 2021 Journal Article Jiang, Y., Yang, Y., Tan, S. & Hui, R. S. (2021). Distribution power loss mitigation of parallel-connected distributed energy resources in low-voltage DC microgrids using a lagrange multiplier-based adaptive droop control. IEEE Transactions On Power Electronics, 36(8), 9105-9118. https://dx.doi.org/10.1109/TPEL.2021.3050506 0885-8993 https://hdl.handle.net/10356/160761 10.1109/TPEL.2021.3050506 2-s2.0-85099602577 8 36 9105 9118 en IEEE Transactions on Power Electronics © 2021 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Adaptive Droop Control Lagrange Multiplier Method Jiang, Yajie Yang, Yun Tan, Siew-Chong Hui, Ron Shu-Yuen Distribution power loss mitigation of parallel-connected distributed energy resources in low-voltage DC microgrids using a lagrange multiplier-based adaptive droop control |
| title | Distribution power loss mitigation of parallel-connected distributed energy resources in low-voltage DC microgrids using a lagrange multiplier-based adaptive droop control |
| title_full | Distribution power loss mitigation of parallel-connected distributed energy resources in low-voltage DC microgrids using a lagrange multiplier-based adaptive droop control |
| title_fullStr | Distribution power loss mitigation of parallel-connected distributed energy resources in low-voltage DC microgrids using a lagrange multiplier-based adaptive droop control |
| title_full_unstemmed | Distribution power loss mitigation of parallel-connected distributed energy resources in low-voltage DC microgrids using a lagrange multiplier-based adaptive droop control |
| title_short | Distribution power loss mitigation of parallel-connected distributed energy resources in low-voltage DC microgrids using a lagrange multiplier-based adaptive droop control |
| title_sort | distribution power loss mitigation of parallel connected distributed energy resources in low voltage dc microgrids using a lagrange multiplier based adaptive droop control |
| topic | Engineering::Electrical and electronic engineering Adaptive Droop Control Lagrange Multiplier Method |
| url | https://hdl.handle.net/10356/160761 |
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