Parameters affecting the arcing time of HVDC circuit breakers using black box arc model

Gouda, Osama E.; Ibrahim, Doaa Khalil; Soliman, Adel M.

doi:10.1049/iet-gtd.2018.6264

Cited by 11 publications

(11 citation statements)

References 33 publications

(76 reference statements)

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“…where 2  is the Mayr time constant; i is the arc current; N is the power dissipation of the arc column. In the same way [18], Mayr parameters at any time in any breaking experiment can be reconstructed as…”

Section: A the Reconstruction Theory Of Cassie-mayr Parametersmentioning

confidence: 99%

Research on Influence Factors and Acceleration Methods of Current Commutation

et al. 2020

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The vacuum interrupter is widely used due to the advantages of no arc-extinguishing medium and high insulation strength. However, the arc voltage generated by the commonly used CuCr contacts is low. In hybrid DC circuit breakers (DCCB), hybrid automatic transfer switches (ATS), medium voltage compound switches and other fields, it is difficult to rely on vacuum arc to complete natural commutation, which restricts the development of hybrid switches. In order to understand the current commutation process deeply, the influence of internal and external factors on the current commutation is analyzed by experiments. The coupling mathematical model of arc-commutated branch is established. The criterion for the success of current commutation is summarized. The parameters of the arc model are reconstructed through repeated breaking experiments to explore the influence of internal factors on the arc characteristics. Based on this, the influence law of arc current, contacts gap and transverse magnetic field (TMF) is analyzed. An acceleration method of current commutation is proposed. A prototype for accelerating experiments with an electromagnetic repulsion mechanism and TMF is developed. The commutated branch equivalent to practical applications is built. The experimental results show that the commutation time is effectively shortened and meets the requirements of practical applications through the acceleration method, which provides new thought for the development of hybrid switches.

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Section: A the Reconstruction Theory Of Cassie-mayr Parametersmentioning

confidence: 99%

Research on Influence Factors and Acceleration Methods of Current Commutation

et al. 2020

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“…For this reason, HVDC circuit breakers (CBs) utilize additional circuits to force current with zero crossing 10 , 12 . Generally, HVDC CB consists of an interrupting element, either gaseous or vacuum, and a parallel commutating L–C filter circuit responsible for forcing the current with zero crossing 11 , 13 , 16 . The L–C branch could be used such that the capacitor is not charged prior to operation and in that case the CB is considered to be passive CB.…”

Section: Introductionmentioning

confidence: 99%

New multi-injection commutation topology for circuit breakers of HVDC transmission lines

Wadie,

Elsisi,

Eliyan

2024

Sci Rep

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Power-sharing between countries has an essential effect on increasing the power system’s reliability and allowing a resilient energy market. High voltage direct current (HVDC) transmission systems are preferable for long-distance transmission to decrease power losses. However, HVDC transmission lines have many protection challenges including the differentiability between various types of HVDC circuit breakers (HVDC-CB). Although mechanical HVDC-CBs suffered from long response time, they superseded their solid-state counterparts in terms of price and power losses. In this paper, a multi-injection commutation system MICS-HVDC-CB is developed to provide economic and fast response HVDC-CB. The proposed breaker doesn’t add external elements to avoid any price increase but instead modifies the existing topology. The MICS consists of multiple L–C commutation circuits inserted sequentially following the receiving of the tripping signal. The proposed MICS-HVDC-CB was tested upon a real transmission line using ATP simulation software. The results emphasize that the developed MICS-HVDC-CB decreased the arcing time to 38.5% and 20% compared to passive and active DC-CBs. The impact of cooling power, arcing time constant, and fault resistance was also investigated. The results showed the effectiveness of the proposed MICS topology in reducing the arcing time while keeping a simple and economic breaker structure.

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“…23 Modeling HVDC systems provides more rapid and accurate designs that overcome the deficiencies, or combining and observing the advantages, of the previous systems. [24][25][26] Artificial intelligence is widely used as a method of self-heating control, feature extraction or classification of internal-corona-surface discharges in HVDC applications. 27 Fuzzy-based systems provide effective controllers for uncertain non-linear systems.…”

Section: Introductionmentioning

confidence: 99%

“…23 Modeling HVDC systems provides more rapid and accurate designs that overcome the deficiencies, or combining and observing the advantages, of the previous systems. 24–26…”

Section: Introductionmentioning

confidence: 99%

Modeling and simulation of a fuzzy heat distribution controlled high-voltage DC resistive divider

Yılmaz

Kilci

2020

Measurement and Control

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In order to improve quality in manufacturing, the measuring instruments used in production process should regularly be monitored and corrected according to international or national standards. Calibration of high-voltage equipment and precise measurements of DC high voltages are accomplished by standard voltage divider. Self-heating effect is the main error source of measurement in high-voltage DC resistive dividers. Therefore, precise control systems should be designed to keep stability of the ambient temperature and to regulate the heat distribution along the high-voltage DC resistive divider. For this purpose, a heat controlled resistive divider whose input voltage ( Vin) is up to 5 kV was designed. This study is focused on heat convention and the dissipation model of the resistive divider and executes some control simulations under various conditions that aim to find the appropriate control method. Responses of the high-voltage DC resistive divider model are compared with and are validated by the responses of the designed actual system. The model provides us faster analyze and design solutions for novel methods. In this way, analyzing and controlling higher voltage dividers, such as 100 KV, will reduce just into a parameter change on the model. The fuzzy control method is suggested since the system dynamic has non-linear characteristics. Fuzzy temperature difference controller keeps temperature at a certain degree where fuzzy vertical temperature gradient controller keeps vertical temperature gradient around zero. Actual system and model responses for the fuzzy control are compared and interpreted.

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Parameters affecting the arcing time of HVDC circuit breakers using black box arc model

Cited by 11 publications

References 33 publications

Research on Influence Factors and Acceleration Methods of Current Commutation

Research on Influence Factors and Acceleration Methods of Current Commutation

New multi-injection commutation topology for circuit breakers of HVDC transmission lines

Modeling and simulation of a fuzzy heat distribution controlled high-voltage DC resistive divider

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