Review of HVDC Circuit Breakers Topologies.

Muriuki, James; Muriithi, Christopher Maina; Ngoo, Livingstone; Nyakoe, George N.

doi:10.9790/1676-120302109117

Cited by 5 publications

(4 citation statements)

References 11 publications

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“…The main issue regarding the implementation of circuit breakers (CB) in DC circuits is that there is no natural passage of fault current through zero, as in the case of classical AC systems. In DC circuits, the fault current can be brought to zero only by applying a higher counter voltage (V b ) than the operating voltage of the system [46].…”

Section: Circuit Breaker Solutionsmentioning

confidence: 99%

Overview and Assessment of HVDC Current Applications and Future Trends

2022

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High voltage direct current (HVDC) technology has begun to gather a high degree of interest in the last few decades, showing a fast evolution of achievable voltage levels, transfer capacities, and transmission lengths. All these changes occurred in a context in which power system applications are highly dependent on HVDC technologies such as energy generation from renewable sources (e.g., energy generated in offshore wind power plants), power exchanges between asynchronous networks, submarine cables, and long-length transmission overhead lines have become more common worldwide. This paper tries to summarize the current state of HVDC technologies, both voltage-source converters and current-source converters, the main components of converter substations, control strategies, key challenges arising from their use, as well as the future prospects and trends of HVDC applications. This paper represents the first step in setting the background information for analyzing the impact of a VSC-HVDC connection on the stability of the Romanian transmission network during steady-state and dynamic operation.

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Section: Circuit Breaker Solutionsmentioning

confidence: 99%

Overview and Assessment of HVDC Current Applications and Future Trends

2022

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“…Condition of zero-crossings is established with a series resonant circuit connected to an inductor and a capacitor, this forming a commutation path. This condition is necessary for breaker interruption [89]. Energy is absorbed by the surge arrestor during the fault.…”

Section: Electro-mechanical Passive Resonance Hvdc Breakersmentioning

confidence: 99%

“…The interruption process can be clearly understood by the analysis of the current equation. The differential equation during fault interruption is [89]:…”

Section: Electro-mechanical Passive Resonance Hvdc Breakersmentioning

confidence: 99%

HVdc Circuit Breakers: Prospects and Challenges

et al. 2021

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The integration of offshore wind farms has revitalized the interest in multi–terminal high voltage direct current (M–HVdc) transmission grids. HVdc breakers’ importance has increased as M–HVdc grids are now a commercial truth. Several HVdc circuit breaker technologies have been developed, published, and appeared as prototypes for HVdc networks. This paper summarizes the HVdc breaker technologies from the last two decades, distributed mainly in literature. A comparison of various state–of–the–art HVdc breakers is presented. Further, areas are identified where further research and development are required. The goal is to provide primary challenges and prospects in the HVdc breaker field.

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“…DC circuit breakers are the most reliable in fault interruption in DC systems [22]. There are three main types of DC circuit breakers: mechanical circuit breakers, semiconductor circuit breakers, and hybrid circuit breakers [23]. The response of mechanical circuit breakers is slow.…”

Section: Introductionmentioning

confidence: 99%

A Resonant Hybrid DC Circuit Breaker for Multi-Terminal HVDC Systems

et al. 2020

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High-voltage direct current (DC) transmission systems and multi-terminal direct current transmission systems are attracting attention for expanding the grid to promote introduction of renewable energy. Fault clearing in DC systems is difficult because there is no zero point of current. Hybrid circuit breakers are suitable for fault clearing in DC systems. Conventional hybrid circuit breakers have a hard-switching path that damages the switch. Hard switching damages the device and produces emissions due to harmonic noise. A novel resonant hybrid DC circuit breaker is proposed in this paper. The proposed circuit breaker reduces the damage to the switching device using soft switching due to the current zero point. The proposed circuit breaker is compared with conventional hybrid circuit breakers using numerical simulations. Interruption times and switching types of circuit breakers were compared. The simulation results of the fault clearing characteristics of the proposed breakers show that the proposed breakers have sufficient performance and are capable of stable reconnections in multi-terminal direct current transmission systems.

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Review of HVDC Circuit Breakers Topologies.

Cited by 5 publications

References 11 publications

Overview and Assessment of HVDC Current Applications and Future Trends

Overview and Assessment of HVDC Current Applications and Future Trends

HVdc Circuit Breakers: Prospects and Challenges

A Resonant Hybrid DC Circuit Breaker for Multi-Terminal HVDC Systems

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