dc microgrids
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Author(s):  
V. Fernão Pires ◽  
Armando Cordeiro ◽  
Daniel Foito ◽  
J. Fernando Silva

Author(s):  
Vinícius Dário Bacon ◽  
Sérgio Augusto Oliveira da Silva ◽  
Josep M. Guerrero
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Author(s):  
Mahdi Zolfaghari ◽  
Gevork B. Gharehpetian ◽  
Miadreza Shafie-khah ◽  
João P.S. Catalão

Mathematics ◽  
2022 ◽  
Vol 10 (2) ◽  
pp. 211
Author(s):  
Irina I. Picioroaga ◽  
Andrei M. Tudose ◽  
Dorian O. Sidea ◽  
Constantin Bulac

As disturbances due to natural disasters or man-made attacks intensify awareness regarding power systems’ resilience enhancement, the scientific community concentrates on exploring state-of-the-art technologies for emergency supply restoration strategies. Recent studies are increasingly focusing on the expanded flexibility of soft open points (SOPs) compared to conventional tie-switches to increase the restoration rate of critical loads; however, the potential of this novel technology is not limited to this aspect, with SOPs being used to improve the voltage level and increase the hosting capacity of renewable energy sources (RESs). This paper proposes a deterministic model for the optimal coordination of SOPs and distributed resources in an active distribution network (ADN) aiming at re-establishing the energy supply to critical loads after a prolonged interruption occurrence. At the same time, the support of DC microgrids with integrated RESs, embedded in SOPs, for the restoration process is explored. The efficiency of the proposed optimization model is verified based on a 24-h analysis performed on the modified IEEE 33-bus system, while considering the load and generation uncertainties as well.


2022 ◽  
pp. 978-1012
Author(s):  
Navid Bayati ◽  
Amin Hajizadeh ◽  
Mohsen Soltani

This chapter consists of two sections, ‘Modelling of DC Microgrids' and ‘Protection of DC Microgrids'. In the first section, the new developments in DC Microgrids are discussed. Then, the Modelling of renewable energy resources-based DC Microgrid using characteristics and mathematics equations of each component are presented and then they are simulated by MATLAB. Afterward, the fault analysis and fault current behavior of the studied DC Microgrid are investigated. In the second section, a method of protecting the DC Microgrid and locating the fault in different parts of the system is proposed. The proposed method protects DC Microgrid using localized protection devices. And, the effectiveness of the proposed protection method is validated in a DC Microgrid with ring configuration.


Author(s):  
Boshen Zhang ◽  
Fei Gao ◽  
Yun Zhang ◽  
Dong Liu ◽  
Houjun Tang

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