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

Tapia, Lukas; Baraia-Etxaburu, Igor; Valera, Juan José; Sanchez-Ruiz, Alain; Abad, Gonzalo

doi:10.3390/electronics8090953

Cited by 17 publications

(8 citation statements)

References 22 publications

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“…5. The fault extinguishing time is also compared with the simplified approximation as considered in [12] that disregards the non-linear behavior of the MOV and assumes the current falling to be linear, as in…”

Section: Design Characteristics a Overvoltage X Fault Extinguishing Trade-offmentioning

confidence: 99%

Passive Clamping Circuit for Reduced Switch Count in Solid State Circuit Breakers

Camurca

Jacobsen

Liserre

2021

2021 IEEE 15th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)

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DC Solid-State Circuit Breakers (SSCB) play an important role in the protection of DC and hybrid AC/DC systems. As they operate mostly in on-state, the use of widebandgap devices, with low conduction losses, is an attractive solution. These devices need to be selected based on the rare occasion of fault breaking, with associated overcurrent and overvoltage intervals. In this work a novel clamping circuit, consisting in its simplified form of Metal-Oxide Varistors and capacitors, is proposed to be used in a DC SSCB. This circuit has the objective to reduce the breaker overvoltage during protection, enabling a lower number of required semiconductors in series and consequent overall reduced losses. An analysis of the idea and operation principle of the system is presented, alongside its stages of operation and defining equations. To evaluate its benefits, the system is compared with one typical passive solution. At the end a scaled prototype is tested, validating the benefits and theoretical analysis of the proposed approach.

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Section: Design Characteristics a Overvoltage X Fault Extinguishing Trade-offmentioning

confidence: 99%

Passive Clamping Circuit for Reduced Switch Count in Solid State Circuit Breakers

Camurca

Jacobsen

Liserre

2021

2021 IEEE 15th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG)

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“…Particularly, in the case of DC distribution products where the electrical resistance is more fragile than that of the AC distribution products, it is necessary to interrupt the inflow of over-current more quickly. Therefore, various studies are being conducted to improve performance, such as introducing a new structure to improve the performance of existing breakers [4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Characteristics of Low Voltage Circuit Breaker by External Magnetic Field

et al. 2022

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Recently, as interest in eco-friendly distributed power has increased, studies on the improvement of the performance of breakers such as DC breakers and on the reliability of existing AC breakers have been actively conducted. To improve the performance and reliability of these breakers, this paper conducted the analysis of characteristics of a low voltage circuit breaker using an external magnetic field. In this experiment, before the current-zero point, the cut-off time to improve the breaker performance is shortened and after the current-zero point, re-ignition, which is associated with reliability, is suppressed. According to the experimental results, the short-circuit characteristics before current-zero show a significant difference of 0.13 ms in the t21 section, and the dielectric recovery strength after current-zero shows a 13.3% performance improvement in the latter half of the DRV (dielectric recovery voltage) V-t curve. This result has significant meaning because it can be easily improved under the control of the external magnetic field. Hence, it can be applied to the interruption performance improvement of breakers through detailed research in the future.

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“…DCCBs are divided into three types: mechanical, solid-state, and hybrid DC circuit breakers [20]. Classical topology based on the mechanical breaker is used in many applications, but its action is not flexible, real-time, and continuous [21].…”

Section: Introductionmentioning

confidence: 99%

Solid-State DC Circuit Breakers and Their Comparison in Modular Multilevel Converter Based-HVDC Transmission System

et al. 2021

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This paper proposes a new and surge-less solid-state direct current (DC) circuit breaker in a high-voltage direct current (HVDC) transmission system to clear the short-circuit fault. The main purpose is the fast interruption and surge-voltage and over-current suppression capability analysis of the breaker during the fault. The breaker is equipped with series insulated-gate bipolar transistor (IGBT) switches to mitigate the stress of high voltage on the switches. Instead of conventional metal oxide varistor (MOV), the resistance–capacitance freewheeling diodes branch is used to bypass the high fault current and repress the over-voltage across the circuit breaker. The topology and different operation modes of the proposed breaker are discussed. In addition, to verify the effectiveness of the proposed circuit breaker, it is compared with two other types of surge-less solid-state DC circuit breakers in terms of surge-voltage and over-current suppression. For this purpose, MATLAB Simulink simulation software is used. The system is designed for the transmission of 20 MW power over a 120 km distance where the voltage of the transmission line is 220 kV. The results show that the fault current is interrupted in a very short time and the surge-voltage and over-current across the proposed breaker are considerably reduced compared to other topologies.

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

Cited by 17 publications

References 22 publications

Passive Clamping Circuit for Reduced Switch Count in Solid State Circuit Breakers

Passive Clamping Circuit for Reduced Switch Count in Solid State Circuit Breakers

Analysis of Characteristics of Low Voltage Circuit Breaker by External Magnetic Field

Solid-State DC Circuit Breakers and Their Comparison in Modular Multilevel Converter Based-HVDC Transmission System

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