Review on protection coordination strategies and development of an effective protection coordination system for DC microgrid

Bùi, Dương Minh; Chen, Shilin; Wu, Chi-Hua; Lien, Keng-Yu; Huang, Chen-Ho; Jen, Kuo-Kuang

doi:10.1109/appeec.2014.7066159

Cited by 52 publications

(26 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the modeled system, the operating procedure for the protection is based on the assumption mentioned in Subsection 2.2. When a fault occurs, the power semiconductor switches in both the AC/DC and DC/DC converters are rapidly cut off [10]. Then, the CB on the back end of the AC/DC converter interrupts the fault current before the discharge from dc-link capacitor.…”

Section: Prony's Methodsmentioning

confidence: 99%

A study on applicability of Prony’s method to the analysis of the fault characteristics in low voltage DC distribution system

Noh

Han

et al. 2017

Journal of International Council on Electrical Engineering

View full text Add to dashboard Cite

As an area of interest in energy efficiency in power systems, low voltage DC (LVDC) distribution system has elicited attention as a potential solution. This system is closely associated with the increase of distributed generations, as well as digital loads. Until now, however, the related standards and research remain insufficient to commercialize the LVDC distribution system. In particular, the establishment of the protection schemes for LVDC distribution systems is the primary task because it can affect the overall aspects, including reliability of the system. For the establishment of reliable protection schemes, the fault characteristics of LVDC distribution system must be identified precisely in a practical system. Thus, this paper shows that Prony's method can be used to analyze the fault characteristics of LVDC distribution system. For this purpose, the fault characteristics are theoretically analyzed first. The analysis results are then verified by using ElectroMagnetic Transients Program (EMTP) and MATLAB®.

show abstract

Section: Prony's Methodsmentioning

confidence: 99%

A study on applicability of Prony’s method to the analysis of the fault characteristics in low voltage DC distribution system

Noh

Han

et al. 2017

Journal of International Council on Electrical Engineering

View full text Add to dashboard Cite

show abstract

“…Modern DCSPSs require very fast fault clearing times for safety reasons, especially in vessels performing risky and critical operations [14,15]. The use of power semiconductors provides response times lower than 7-8 µs to the solid-state circuit breakers (SSCBs), thus obtaining the shortest fault breaking times [12].…”

Section: Introductionmentioning

confidence: 99%

Design of a Solid-State Circuit Breaker for a DC Grid-Based Vessel Power System

et al. 2019

View full text Add to dashboard Cite

Electric propulsion and integrated hybrid power systems can improve the energy efficiency and fuel consumption of different kinds of vessels. If the vessel power system is based on DC grid distribution, some benefits such as higher generator efficiency and lower volume and cost can be achieved. However, some challenges remain in terms of protection devices for this kind of DC grid-based power system. The absence of natural zero crossing in the DC current together with the fast and programmable breaking times required make it challenging. There are several papers related to DC breaker topologies and their role in DC grids; however, it is not easy to find comprehensive information about the design process of the DC breaker itself. In this paper, the basis for the design of a DC solid-state circuit breaker (SSCB) for low voltage vessel DC grids is presented. The proposed SSCB full-scale prototype detects and opens the fault in less than 3 µs. This paper includes theoretical analyses, design guidelines, modeling and simulation, and experimental results.

show abstract

“…In addition, dc systems substantially reduce the impacts of synchronization and harmonic distortion, resulting in improved power quality compared to ac systems. However, low-voltage dc distribution systems require consideration of technical issues such as protection and grounding, as well as practical issues such as the limited number of commercially available dc components [10][11][12]. For these reasons, hybrid ac/dc microgrid systems are often investigated as alternative distribution networks.…”

Section: Introductionmentioning

confidence: 99%

Distributed Control Strategy for Autonomous Operation of Hybrid AC/DC Microgrid

2017

View full text Add to dashboard Cite

This paper proposes a distributed control strategy that considers several source characteristics to achieve reliable and efficient operation of a hybrid ac/dc microgrid. The proposed control strategy has a two-level structure. The primary control layer is based on an adaptive droop method, which allows local controllers to operate autonomously and flexibly during disturbances such as fault, load variation, and environmental changes. For efficient distribution of power, a higher control layer adjusts voltage reference points based on optimized energy scheduling decisions. The proposed hybrid ac/dc microgrid is composed of converters and distributed generation units that include renewable energy sources (RESs) and energy storage systems (ESSs). The proposed control strategy is verified in various scenarios experimentally and by simulation.

show abstract

Review on protection coordination strategies and development of an effective protection coordination system for DC microgrid

Cited by 52 publications

References 13 publications

A study on applicability of Prony’s method to the analysis of the fault characteristics in low voltage DC distribution system

A study on applicability of Prony’s method to the analysis of the fault characteristics in low voltage DC distribution system

Design of a Solid-State Circuit Breaker for a DC Grid-Based Vessel Power System

Distributed Control Strategy for Autonomous Operation of Hybrid AC/DC Microgrid

Contact Info

Product

Resources

About