Modular protection system for fault detection and selective fault clearing in DC microgrids

Klosinski, Christoph; Ross, Patrick; Hemdan, Nasser G. A.; Kurrat, Michael; Gerdinand, Frank; Meisner, Johann; Passon, Stephan; Heinrich, Alexander

doi:10.1049/joe.2018.0193

Cited by 9 publications

(5 citation statements)

References 19 publications

(16 reference statements)

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“…DC|hyPASim specifically investigates hybrid grid concepts with bidirectional energy flow between AC and DC grid [20]. Various studies exist on fault cases in the different grid types and the first prototypical reference systems from industry show the basic concept for specific applications for the grid form [21][22][23][24]. In terms of research, the publications address in detail the niche of simulating the efficiency for different operating points as a load in two grid forms with components available on the market.…”

Section: Status Of International Researchmentioning

confidence: 99%

Simulation-Based Efficiency Comparison of Different Mains Configurations for DC Grid Branches for Supplying Production Plants Based on a Rule-Compliant Design

Gutwald

Ndjiemeni

Barth

et al. 2023

Lecture Notes in Mechanical Engineering

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Numerous research projects are investigating direct current (DC) grids for supplying energy to production plants. The motivation is the higher efficiency and lower material requirements compared to conventional grid structures, as fewer electrical conversion processes occur, regenerative energies can be coupled in more efficiently and recuperation energy can be stored better. The grid form and the associated earthing concept require different protective devices. The publication simulates two possible grid forms and compares the efficiency with an approximated power curve of a production cell. The publication gives researchers and plant planners an impression of how such a network is designed and which components influence the efficiency. It serves as a decision-making aid for the selection of the grid form and helps with the design of the electrical components.

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Section: Status Of International Researchmentioning

confidence: 99%

Simulation-Based Efficiency Comparison of Different Mains Configurations for DC Grid Branches for Supplying Production Plants Based on a Rule-Compliant Design

Gutwald

Ndjiemeni

Barth

et al. 2023

Lecture Notes in Mechanical Engineering

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“…Depending on the topology of the energy distribution grid, a suitable failure detection hardware and software has to coordinate and control the switches, as proposed in [121]. The detection algorithm has to detect, characterize and localize the failure.…”

Section: A High Voltage Switch Requirements In An Aeamentioning

confidence: 99%

“…Interesting studies with high potential are currently being carried out. They discuss and suggest different new technology solutions like superconductivity [160], selective protection of DC grids [121] and many more.…”

Section: Wiring Harnessmentioning

confidence: 99%

Discussion on Electric Power Supply Systems for All Electric Aircraft

et al. 2020

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The electric power supply system is one of the most important research areas within sustainable and energy-efficient aviation for more-and especially all electric aircraft. This paper discusses the history in electrification, current trends with a broad overview of research activities, state of the art of electrification and an initial proposal for a short-range aircraft. It gives an overview of the mission profile, electrical sources, approaches for the electrical distribution system and the required electrical loads. Current research aspects and questions are discussed, including voltage levels, semiconductor technology, topologies and reliability. Because of the importance for safety possible circuit breakers for the proposed concept are also presented and compared, leading to a initial proposal. Additionally, a very broad review of literature and a state of the art discussion of the wiring harness is given, showing that this topic comes with a high number of aspects and requirements. Finally, the conclusion sums up the most important results and gives an outlook on important future research topics. INDEX TERMS Aviation, aerospace electronics, MEA, AEA, electric power supply systems, dc-dc power converters, power semiconductor devices, wide bandgap semiconductors, high voltage direct current (HVDC), circuit breaker, hybrid circuit breaker.

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“…A DC Microgrid can be connected to the AC grid by an AC/DC converter in grid-connected mode or operated without connecting the grid as an islanded mode [7]- [9]. The lack of effective protection strategy and the nature of DC faults make the protection of DC Microgrids a significant challenge for DC Microgrid implementations [10]. In the DC systems, due to the high rate and amplitude of fault current, the low cable impedance, the presence of power converters, and lack of zero-crossing point, the detection of a fault in the DC Microgrids is difficult [11].…”

Section: Introductionmentioning

confidence: 99%

A Localized–Protection Scheme for Ring DC Microgrids using Distribution-Sensitive Poverty Index

Bayati

Aghaee

Hajizadeh

et al. 2021

2021 12th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)

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DC Microgrid protection is one of the challenges in utilizing DC Microgrids. This paper offers a protection scheme for DC Microgrids with ring configuration by using local intelligent electronic devices. This method is based on monitoring the distribution-sensitive poverty index, which is calculated by using the current in different sample times. Moreover, this protection method only uses the local data at the intelligent electronic devices without using any communication links; thus, it increases the reliability and also decreases the cost of the protection system. In addition, the proposed scheme is capable of detecting the high impedance faults within the DC Microgrid lines. The effectiveness of the proposed strategy is demonstrated by using simulations in different scenarios. Simulation results indicate that the proposed method can detect both low and high impedance faults within several milliseconds, and the comparison with other fault detection methods reveals the superiority of the proposed strategy.

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Modular protection system for fault detection and selective fault clearing in DC microgrids

Cited by 9 publications

References 19 publications

Simulation-Based Efficiency Comparison of Different Mains Configurations for DC Grid Branches for Supplying Production Plants Based on a Rule-Compliant Design

Simulation-Based Efficiency Comparison of Different Mains Configurations for DC Grid Branches for Supplying Production Plants Based on a Rule-Compliant Design

Discussion on Electric Power Supply Systems for All Electric Aircraft

A Localized–Protection Scheme for Ring DC Microgrids using Distribution-Sensitive Poverty Index

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