Hierarchical and Droop Method for DC Micro-grid Bus Voltage under Isolated operation
Nowadays, distributed generation technology is of great help to the efficient utilization of new energy. If the distributed power supply is connected to the DC micro-grid, it will be more secure and reliable. Therefore, it is necessary to control the voltage stability of the DC bus and ensure the ba...
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2020-01-01
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doaj-8f770f41e2614c219caa0e80f36f9b2a2021-04-02T13:35:41ZengEDP SciencesE3S Web of Conferences2267-12422020-01-011850106210.1051/e3sconf/202018501062e3sconf_iceeb2020_01062Hierarchical and Droop Method for DC Micro-grid Bus Voltage under Isolated operationYan Xiangyang0Zheng Ningkang1Kang Yilong2Qi Huanruo3Li Kai4Pei Haowei5Niu Kai6State Grid Henan Economic Research InstituteState Grid Henan Economic Research InstituteState Grid Henan Economic Research InstituteState Grid Henan Economic Research InstituteState Grid Henan Economic Research InstituteState Grid Henan Economic Research InstituteState Grid Henan Economic Research InstituteNowadays, distributed generation technology is of great help to the efficient utilization of new energy. If the distributed power supply is connected to the DC micro-grid, it will be more secure and reliable. Therefore, it is necessary to control the voltage stability of the DC bus and ensure the balance of the source charge power of system to ensure the power supply quality and safety of the DC micro-grid. There are two operation modes of DC micro-grid: connected operation and isolated operation, and isolated operation control is the foundation and key of system-level control of DC micro-grid. To solve the problem of bus voltage fluctuation in isolated dc micro-grid, this study proposes a voltage hierarchical-droop control strategy for DC micro-grid, which can effectively improve the stability of the DC bus voltage. Last, this study builds the simulation model of DC micro-grid in the MATLAB/Simulink platform to verify the validity and feasibility of the proposed control strategy.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/45/e3sconf_iceeb2020_01062.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yan Xiangyang Zheng Ningkang Kang Yilong Qi Huanruo Li Kai Pei Haowei Niu Kai |
spellingShingle |
Yan Xiangyang Zheng Ningkang Kang Yilong Qi Huanruo Li Kai Pei Haowei Niu Kai Hierarchical and Droop Method for DC Micro-grid Bus Voltage under Isolated operation E3S Web of Conferences |
author_facet |
Yan Xiangyang Zheng Ningkang Kang Yilong Qi Huanruo Li Kai Pei Haowei Niu Kai |
author_sort |
Yan Xiangyang |
title |
Hierarchical and Droop Method for DC Micro-grid Bus Voltage under Isolated operation |
title_short |
Hierarchical and Droop Method for DC Micro-grid Bus Voltage under Isolated operation |
title_full |
Hierarchical and Droop Method for DC Micro-grid Bus Voltage under Isolated operation |
title_fullStr |
Hierarchical and Droop Method for DC Micro-grid Bus Voltage under Isolated operation |
title_full_unstemmed |
Hierarchical and Droop Method for DC Micro-grid Bus Voltage under Isolated operation |
title_sort |
hierarchical and droop method for dc micro-grid bus voltage under isolated operation |
publisher |
EDP Sciences |
series |
E3S Web of Conferences |
issn |
2267-1242 |
publishDate |
2020-01-01 |
description |
Nowadays, distributed generation technology is of great help to the efficient utilization of new energy. If the distributed power supply is connected to the DC micro-grid, it will be more secure and reliable. Therefore, it is necessary to control the voltage stability of the DC bus and ensure the balance of the source charge power of system to ensure the power supply quality and safety of the DC micro-grid. There are two operation modes of DC micro-grid: connected operation and isolated operation, and isolated operation control is the foundation and key of system-level control of DC micro-grid. To solve the problem of bus voltage fluctuation in isolated dc micro-grid, this study proposes a voltage hierarchical-droop control strategy for DC micro-grid, which can effectively improve the stability of the DC bus voltage. Last, this study builds the simulation model of DC micro-grid in the MATLAB/Simulink platform to verify the validity and feasibility of the proposed control strategy. |
url |
https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/45/e3sconf_iceeb2020_01062.pdf |
work_keys_str_mv |
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1721564390924222464 |