Gate Drive Controller for Low Voltage DC Hybrid Circuit Breaker

Kim, Hyosung

doi:10.3390/en14061753

Cited by 7 publications

(3 citation statements)

References 14 publications

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“…Also, compare the same operator types but for different breakers; the curves should have similar signature and comparable time characteristics. If the trip time is good but close time is slow, the tail spring is out of adjustment and may be masking a bearing problem [16]- [20].…”

Section: Methodsmentioning

confidence: 99%

Early fault identification for operating circuit breaker based on classifier model system

Hussain¹,

Ahmed

Taha³

2022

IJEECS

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One of the most important switchgear in a substation is the circuit breaker (CB); it is used either in the transmission or distribution sections. Currently, the maintenance of a CB is done by capturing the trip time using a handheld device; the trip time is the time from trip initiation to the moment of current flow cessation in the load side of the CB. For the maintenance staff of the Iraqi National Power Board (INPB), their decision is mainly aimed to pinpoint the specific problem of the CB, the breaker parameters, such as latch, buffer, mcon, acon, and end which can be analysed using data mining methods such as K-means clustering and Sammon mapping (KCSM). The advantages of this approach include early identification of faults and saving more cost and time of repairing and replacing damaged CBs as the number of damaged CBs can be decreased. The problem with this method is the prolonged time of testing the conventional trip as it requires removing the CBs from service and planned outage. Furthermore, the CB may not capture the crucial information that causes slow tripping. Hence, the main objectives of this work are to analyse CB trip coil current data and study the effect and relationship between two different analytical approaches to analyse the data. The result of this technique showed excellent identification of the switch faults.

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Section: Methodsmentioning

confidence: 99%

Early fault identification for operating circuit breaker based on classifier model system

Hussain¹,

Ahmed

Taha³

2022

IJEECS

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“…Another fundamental feature that characterizes IDD is its repeatability of operation and long-term reliability (provided that the correct parameters of all its components are determined). The above advantages of the IDD resulted in its taking over from other types of drives (e.g., spring ones) in many circuit breakers, especially in the so-called hybrid circuit breakers (Figure 1b) of both DC [20][21][22][23][24][25][26] and AC used in synchronous switchingoff [27][28][29][30][31][32][33]. The interest of the authors in the study of this type of drive is mainly related to their application in the class of circuit breakers considered [30,[32][33][34][35][36][37][38][39][40][41].…”

Section: Inductive Dynamic Drive (Idd)mentioning

confidence: 99%

Modeling of Electrodynamic Phenomena in an Ultra-Rapid Inductive–Dynamic Actuator as Applied to Hybrid Short-Circuit Breakers—A Review Study

et al. 2022

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This article is a study of the research development of electrodynamic phenomena occurring in ultra-fast electrodynamic drives. These types of linear drives are among the fastest, not only because of the huge accelerations achieved, but, above all, because of the extremely short reaction time. For this reason, electrodynamic drives are used in hybrid short-circuit breakers. The phenomena occurring in this type of drive are actually magneto-thermo-elastic in nature, but the coupling of these phenomena should be considered weak if the criteria for repeatable operation in a hybrid circuit breaker system are met. The authors have been researching this type of drive for many years through not only experimental studies, but also primarily simulation studies developing models of such drives. The authors present the history of the development starting from the first works of Thomson, and Kesserling and ending with the most current models, including mainly their own. This article presents mainly works studying electrodynamic phenomena. Thermal and mechanical phenomena were comprehensively presented by the authors in previous papers.

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“…In addition, the breaking time of a mechanical circuit breaker is generally about 30-100 ms [15]. Therefore, it has been proposed a reverse current injection method [16][17][18], a current conversion method [19], a reverse voltage generation method [6,8,10,12,19], and a divergence oscillation method to compensate for the limitations of the mechanical circuit breaker. In the reverse current injection method, the reverse current [I reverse > I f ault ] is injected and cut off by discharging through a pre-charged capacitor and reactor.…”

Section: Introductionmentioning

confidence: 99%

Operation Characteristics of Mechanical DC Circuit Breaker Combined with LC Divergence Oscillation Circuit for High Reliability of LVDC System

Park

Choi

2021

Energies

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DC systems are modernly starting to come into the spotlight again due to the carbon-neutral policy, the development of semiconductor devices for power, and the increase in digital loads. We need to prepare in advance solutions to problems that may arise from fault currents due to transients for future DC power grid models. In the case of DC, there is no current zero-point because there is no frequency. Therefore, a large switching surge is generated when the circuit breaker cuts off the fault current. The possibility of insulation breakdown is greater than that of AC in severe cases. We consider power semiconductors or superconducting current limiters as an alternative. However, DC breaking cannot be safely achieved by itself. For reliable DC breaking, mechanical circuit breakers must be used with them. Among the mechanical shut-off methods, we adopted the divergence oscillation method. It has the biggest advantage compared to other methods in that it has a simple structure by composing passive elements and can artificially create zero current. In addition, it can be applied to a power semiconductor and a superconducting current limiter to perform a high-reliability cut-off operation. In this paper, we conducted simulation analysis by configuring the DC power grid and DC cut-off system through the PSCAD/EMTDC program. Results confirmed that the application of the LC divergence oscillation circuit can reduce the cut-off time and reduce the power burden of the mechanical DC circuit breaker (MCB).

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Gate Drive Controller for Low Voltage DC Hybrid Circuit Breaker

Cited by 7 publications

References 14 publications

Early fault identification for operating circuit breaker based on classifier model system

Early fault identification for operating circuit breaker based on classifier model system

Modeling of Electrodynamic Phenomena in an Ultra-Rapid Inductive–Dynamic Actuator as Applied to Hybrid Short-Circuit Breakers—A Review Study

Operation Characteristics of Mechanical DC Circuit Breaker Combined with LC Divergence Oscillation Circuit for High Reliability of LVDC System

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