دورية أكاديمية
An optimised state‐of‐charge balance control strategy for distributed energy storage units in islanded DC microgrid
| العنوان: | An optimised state‐of‐charge balance control strategy for distributed energy storage units in islanded DC microgrid |
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| المؤلفون: | Yang Mi, Yuchen Ma, Si Yu, Pengcheng Cai, Liang Ji, Yang Fu, Dong Yue, Chi Jin, Peng Wang |
| المصدر: | IET Generation, Transmission & Distribution, Vol 15, Iss 6, Pp 1021-1030 (2021) |
| بيانات النشر: | Wiley, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Production of electric energy or power. Powerplants. Central stations |
| مصطلحات موضوعية: | Control of electric power systems, Distributed power generation, Distribution networks, Power engineering computing, Other energy storage, Distribution or transmission of electric power, TK3001-3521, Production of electric energy or power. Powerplants. Central stations, TK1001-1841 |
| الوصف: | Abstract The optimised droop control method is proposed to achieve the state‐of‐charge (SoC) balance among parallel‐connected distributed energy storage units in islanded DC microgrid, which considers the difference of line impedance, initial state‐of‐charge values and capacities among distributed energy storage units. Since the droop control is the basic control strategy for load sharing in DC microgrid applications, however, the load sharing accuracy is degraded under conventional droop control method due to the unmatched line impedance in reality. Meanwhile, the initial state‐of‐charge values and capacities of each distributed energy storage unit are usually different. Hence, the state of charge for distributed energy storage units cannot be balanced. In order to prolong the lifetime of the distributed energy storage units and avoid the overuse of a certain distributed energy storage unit, the optimised droop control strategy based on sample and holder is designed, by modifying the droop coefficient adaptively, the accurate load sharing and balanced state of charge among distributed energy storage units are both obtained. Finally, the performance of the proposed control scheme is accessed through a series cases on technologies real‐time digital simulator (RTDS) and its effectiveness is verified. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1751-8695 1751-8687 |
| Relation: | https://doaj.org/toc/1751-8687; https://doaj.org/toc/1751-8695 |
| DOI: | 10.1049/gtd2.12077 |
| URL الوصول: | https://doaj.org/article/9554eb546f6d40f9bbb139a8037febf2 |
| رقم الأكسشن: | edsdoj.9554eb546f6d40f9bbb139a8037febf2 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 17518695 17518687 |
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| DOI: | 10.1049/gtd2.12077 |