scholarly journals Hierarchical control with virtual resistance optimization for efficiency enhancement and State-of-Charge balancing in DC microgrids

2015 ◽  
Author(s):  
Lexuan Meng ◽  
Tomislav Dragicevic ◽  
Juan Vasquez ◽  
Josep Guerrero ◽  
Eleonora Riva Sanseverino
Keyword(s):  
Hierarchical Control ◽  
State Of Charge ◽  
Efficiency Enhancement ◽  
Dc Microgrids ◽  
Charge Balancing

scholarly journals A Bus-Sectionalized Hybrid AC/DC Microgrid: Concept, Control Paradigm, and Implementation

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3508
Author(s):  
Jing Li ◽  
Hongda Cai ◽  
Pengcheng Yang ◽  
Wei Wei
Keyword(s):  
Hierarchical Control ◽  
Mode Switching ◽  
Stable Operation ◽  
Service Reliability ◽  
Test Results ◽  
Dc Microgrid ◽  
Dc Microgrids ◽  
Operation Modes ◽  
Control Paradigm ◽  
Operational Data

In the last several years, the coordination control of hybrid AC/DC microgrids (HMGs) has been gaining increasingly more attention. However, most of these discussions are focused on single-bus HMGs whose AC or DC bus is not sectionalized by AC or DC breakers. Compared with these single-bus HMGs, the bus-sectionalized HMG has more flexible topologies, more diverse operation modes, and consequently higher service reliability. However, meanwhile, these benefits also bring challenges to the stable operation of bus-sectionalized HMGs, particularly for mode switching. Relying on the national HMG demonstrative project in Shaoxing, China, this paper makes efforts to present the hierarchical control paradigm of a typical bus-sectionalized HMG toward standardization. The test results demonstrate that the proposed system provides seamless switching and uninterrupted power supply without controller reconfiguration among different operation modes. The operational data are also brought forth and analyzed to provide significant and useful experiences for designing and developing similar HMGs in the future.

scholarly journals Hierarchical Control in Islanded DC Microgrids With Flexible Structures

2020 ◽  
pp. 1-14
Author(s):  
Pulkit Nahata ◽  
Alessio La Bella ◽  
Riccardo Scattolini ◽  
Giancarlo Ferrari-Trecate
Keyword(s):  
Hierarchical Control ◽  
Flexible Structures ◽  
Dc Microgrids
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