Residual-based Short-Circuit fault detection and isolation in LVDC microgrid

Moussa, Sonia; Ghorbal, Manel Jebali Ben; Ziani, Jihen Arbi; Slama‐Belkhodja, Ilhem

doi:10.1016/j.seta.2022.102803

Cited by 5 publications

(4 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The method can be still improved and simplified by considering the additional indications of IEEE Standard 946-2020 [30]. As an example, according to [22], the contribution of DC motors and inductive loads to the short-circuit current can be conservatively estimated as ten times the motor's rated full-load current. This allows to eliminate from the microgrid graphs those nodes containing DC motors and inductive loads.…”

Section: Discussionmentioning

confidence: 99%

“…In the second paper, a mathematical model and the related experimental validation are presented for short-circuit calculations in DC grids supplied by hybrid AC/DC power supply generators. The research work in [22] tries to distinguish steady-state, transient and fault operation in low voltage DC microgrids supplied by PV and battery storage systems. The proposed algorithm calculates residual current in voltage source converters and load branches, while not consider the effect of generation units.…”

Section: B Background and Related Workmentioning

confidence: 99%

See 1 more Smart Citation

A General Methodology for Short-circuit Calculations in Hybrid AC/DC Microgrids

Favuzza

Mitolo²,

Moradi

et al. 2023

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

In this paper, the issues related to short-circuit calculations in hybrid AC/DC microgrids are discussed. The reference standard for short-current calculations in DC systems is the IEC 61660, which provides a mathematical formulation of the problem. The standard only includes radial DC grids and does not consider a more complex system, such as meshed DC systems or a hybrid AC/DC microgrid. This paper proposes a generalized approach that can be used independently of the characteristics of the hybrid system. The proposed approach is applied to four test microgrids with different distributed sources and number of nodes and the results are compared with those obtained simulating the same grids with Neplan 360 ® .

show abstract

Section: Discussionmentioning

confidence: 99%

Section: B Background and Related Workmentioning

confidence: 99%

A General Methodology for Short-circuit Calculations in Hybrid AC/DC Microgrids

Favuzza

Mitolo²,

Moradi

et al. 2023

IEEE Trans. on Ind. Applicat.

View full text Add to dashboard Cite

show abstract

“…Therefore, it is urgent to monitor the distributed capacitance value of the cable and analyze the changing trend, and predict the mis-action chance of the relay [5] . Therefore, based on the analysis and study of the allowable critical value of distributed capacitance under different faults, it is necessary to build a digital model to check whether the low voltage DC system has a mis-action risk for certainly distributed capacitance [6][7][8] . In this paper, software for analyzation and prediction of misaction for relay is designed applied for typical faults.…”

Section: Introductionmentioning

confidence: 99%

Development of digital model and analyzation system for typical faults of low voltage DC system

Wang,

Chen,

Xing

et al. 2024

Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023)

View full text Add to dashboard Cite

The digital model for the typical faults of low voltage DC system is analyzed, and the analyzation system is developed to offline calculate and pre-analyses whether the fault results in mis-action of the low voltage DC system. Firstly, the digital model for typical faults of low voltage DC is analyzed based on the analytical method, and the mis-action power for typical faults is found. Secondly, the software for verification of the above analysis is developed, and typical cases are used to further verify the correctness and effectiveness of the developed software. In the tested case, the developed software can flexibly pre-analyses the mis-action of low voltage DC system for the targeted typical faults.

show abstract

“…Test benches and equivalent models for the study of short-circuit faults were built by Ravyts et al and Wang et al, respectively [5,8]. The authors of [9][10][11][12] studied the short-circuit protection of power electronic devices, and the authors of [13][14][15][16][17][18] conducted studies online protection and protection selectivity during short circuits. In [19][20][21], the researchers studied several fault location methods based on short-circuit currents.…”

Section: Introductionmentioning

confidence: 99%

Research on Dynamic and Thermal Effects Based on the Calculation of the Short-Circuit Current in Low-Voltage DC Distribution Systems for Civil Buildings

Wei,

Ni,

Feng

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

The verification of short-circuit effects is very important for ensuring the safety of equipment and power systems. Compared with that in alternating current (AC) systems, research on this issue in direct current (DC) systems is scarce, and it is urgently necessary to develop an accurate verification method for applications in DC systems. This research establishes an equivalent model of a pole–pole cable short-circuit according to the characteristics of low-voltage DC distribution systems in civil buildings. Through theoretical analysis and numerical simulation, the development process of a short circuit is summarized, and the methods of verifying dynamic and thermal effects based on the time-domain characteristics of the short-circuit current are specified. By calculating the peak value and Joule integral of the short-circuit current, in comparison with those in the IEC 61660 (1997) standard, this research points out that the method in the IEC 61660 (1997) standard is insufficient. Finally, the short-circuit peak current is greatly affected by the DC-link capacitance, the steady-state current is directly related to the filter inductance of the AC-link; and the verification of the thermal effect requires the calculation of the Joule integral in the transient and steady state.

show abstract

Residual-based Short-Circuit fault detection and isolation in LVDC microgrid

Cited by 5 publications

References 20 publications

A General Methodology for Short-circuit Calculations in Hybrid AC/DC Microgrids

A General Methodology for Short-circuit Calculations in Hybrid AC/DC Microgrids

Development of digital model and analyzation system for typical faults of low voltage DC system

Research on Dynamic and Thermal Effects Based on the Calculation of the Short-Circuit Current in Low-Voltage DC Distribution Systems for Civil Buildings

Contact Info

Product

Resources

About