scholarly journals Hierarchical Control for DC Microgrids

10.5772/63986 ◽  
2016 ◽  
Author(s):  
Ahmed Mohamed
Keyword(s):  
Hierarchical Control ◽  
Dc Microgrids

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

Integrated Nonlinear Hierarchical Control and Management of Hybrid AC/DC Microgrids

2021 ◽  
pp. 1-12
Author(s):  
Mojtaba Biglarahmadi ◽  
Abbas Ketabi ◽  
Hamid Reza Baghaee ◽  
Josep M. Guerrero
Keyword(s):  
Hierarchical Control ◽  
Dc Microgrids ◽  
Control And Management

scholarly journals A Hierarchical Control Methodology for Renewable DC Microgrids Supporting a Variable Communication Network Health

Electronics ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 418 ◽  
Author(s):  
Muhammad Shahid ◽  
Muhammad Khan ◽  
Jianming Xu ◽  
Khurram Hashmi ◽  
Salman Habib ◽  
...  
Keyword(s):  
Power Flow ◽  
Renewable Energy Sources ◽  
Hierarchical Control ◽  
Network Connectivity ◽  
Voltage Regulation ◽  
Monitoring And Control ◽  
Dc Microgrids ◽  
Communication Links ◽  
Microgrid Control ◽  
And Control

The monitoring and control of renewable energy sources (RESs) based on DC (Direct Current) microgrids (DC MG) are gaining much consideration at this time. In comparison with the isolated individual control of converters in a microgrid, DC microgrids provide better voltage regulation and harmonized energy generation/consumption. To address the inherent vulnerability of communication links, robust methods have been proposed that improve the resilience of communication-based control. However, the failure of the communication links in microgrid control layers remains a considerable issue that may lead to one or more nodes being disconnected and operating as a communication island. Such types of communication islanding may cause the unpredictable behavior of the system and further destabilization may lead to a cascaded failure. This paper proposes a fast algorithm to detect and evaluate network connectivity based on the information stored at every node in the form of a look-up table. The control structure has been modified under communication islanding, and a communication connectivity observer is used at every node to detect and address power flow issues under communication islanding. The proposed method has been verified through mathematical analysis, simulation, and experimental results.

scholarly journals Modeling and Sensitivity Study of Consensus Algorithm-Based Distributed Hierarchical Control for DC Microgrids

2016 ◽  
Vol 7 (3) ◽  
pp. 1504-1515 ◽  
Author(s):  
Lexuan Meng ◽  
Tomislav Dragicevic ◽  
Javier Roldan-Perez ◽  
Juan C. Vasquez ◽  
Josep M. Guerrero
Keyword(s):  
Hierarchical Control ◽  
Sensitivity Study ◽  
Consensus Algorithm ◽  
Dc Microgrids

Implementation of Hierarchical Control in DC Microgrids

2014 ◽  
Vol 61 (8) ◽  
pp. 4032-4042 ◽  
Author(s):  
Chi Jin ◽  
Peng Wang ◽  
Jianfang Xiao ◽  
Yi Tang ◽  
Fook Hoong Choo
Keyword(s):  
Hierarchical Control ◽  
Dc Microgrids
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