Design, Modeling and Control of Hybrid DC Circuit Breaker Based on Fast Thyristors

Aliakbar Jamshidi Far; Dragan Jovcic

doi:10.1109/TPWRD.2017.2761022

Design, Modeling and Control of Hybrid DC Circuit Breaker Based on Fast Thyristors

Aliakbar Jamshidi Far, Dragan Jovcic

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50 Citations (Scopus)

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Abstract

This paper presents a systematic study on designing hybrid direct current (DC) circuit breaker (CB) based on fast thyristors. As an illustration, the DC CB main parameters are calculated for a 120kV, 1.5kA test breaker with interrupting
current of 10kA. The studies indicate that the opening time of 2.3ms can be achieved only if fast thyristors are employed. It is further illustrated that there is a design tradeoff between minimum interrupting current capability and discharge time for the internal capacitors (reclosing speed). The DC CB control
system for opening and closing is presented based on different levels of protection and the self-protection. The DC CB is modelled in PSCAD and simulation results are used to evaluate the breaker performance under different operating conditions. It is concluded that the model represents well the DC CB and can be employed for DC grid protection studies. It is further shown that opening time becomes longer as interrupting current reduces, and it is very long in case of load current interruption.

Original language	English
Pages (from-to)	919-927
Number of pages	9
Journal	IEEE Transactions on Power Delivery
Volume	33
Issue number	2
Early online date	9 Oct 2017
DOIs	https://doi.org/10.1109/TPWRD.2017.2761022
Publication status	Published - 2 Apr 2018

Bibliographical note

This work was supported by the European Union’s Horizon 2020 research and innovation programme under grant No. 691714

Keywords

DC grids
protection
hybrid DC circuit breaker
fast thyristor

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10.1109/TPWRD.2017.2761022Licence: Unspecified

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Accepted author manuscript, 672 KBLicence: Unspecified

Aliakbar Jamshidi Far
- Engineering, Engineering - Lecturer
- Engineering, Aberdeen HVDC Research Centre
Person: Academic

Cite this

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title = "Design, Modeling and Control of Hybrid DC Circuit Breaker Based on Fast Thyristors",

abstract = "This paper presents a systematic study on designing hybrid direct current (DC) circuit breaker (CB) based on fast thyristors. As an illustration, the DC CB main parameters are calculated for a 120kV, 1.5kA test breaker with interruptingcurrent of 10kA. The studies indicate that the opening time of 2.3ms can be achieved only if fast thyristors are employed. It is further illustrated that there is a design tradeoff between minimum interrupting current capability and discharge time for the internal capacitors (reclosing speed). The DC CB controlsystem for opening and closing is presented based on different levels of protection and the self-protection. The DC CB is modelled in PSCAD and simulation results are used to evaluate the breaker performance under different operating conditions. It is concluded that the model represents well the DC CB and can be employed for DC grid protection studies. It is further shown that opening time becomes longer as interrupting current reduces, and it is very long in case of load current interruption. ",

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AU - Jovcic, Dragan

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N2 - This paper presents a systematic study on designing hybrid direct current (DC) circuit breaker (CB) based on fast thyristors. As an illustration, the DC CB main parameters are calculated for a 120kV, 1.5kA test breaker with interruptingcurrent of 10kA. The studies indicate that the opening time of 2.3ms can be achieved only if fast thyristors are employed. It is further illustrated that there is a design tradeoff between minimum interrupting current capability and discharge time for the internal capacitors (reclosing speed). The DC CB controlsystem for opening and closing is presented based on different levels of protection and the self-protection. The DC CB is modelled in PSCAD and simulation results are used to evaluate the breaker performance under different operating conditions. It is concluded that the model represents well the DC CB and can be employed for DC grid protection studies. It is further shown that opening time becomes longer as interrupting current reduces, and it is very long in case of load current interruption.

AB - This paper presents a systematic study on designing hybrid direct current (DC) circuit breaker (CB) based on fast thyristors. As an illustration, the DC CB main parameters are calculated for a 120kV, 1.5kA test breaker with interruptingcurrent of 10kA. The studies indicate that the opening time of 2.3ms can be achieved only if fast thyristors are employed. It is further illustrated that there is a design tradeoff between minimum interrupting current capability and discharge time for the internal capacitors (reclosing speed). The DC CB controlsystem for opening and closing is presented based on different levels of protection and the self-protection. The DC CB is modelled in PSCAD and simulation results are used to evaluate the breaker performance under different operating conditions. It is concluded that the model represents well the DC CB and can be employed for DC grid protection studies. It is further shown that opening time becomes longer as interrupting current reduces, and it is very long in case of load current interruption.

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KW - fast thyristor

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JO - IEEE Transactions on Power Delivery

JF - IEEE Transactions on Power Delivery

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ER -

Design, Modeling and Control of Hybrid DC Circuit Breaker Based on Fast Thyristors

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