Fault Behavior and Protection of HVDC System

Kim, Chan-Ki; Sood, Vijay K.; Jang, Gilsoo; Lim, Seong-Joo; Lee, Seok‐Jin

doi:10.1002/9780470822975.ch7

Cited by 3 publications

(1 citation statement)

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“…Low accuracy and minimal directional selectively make this kind of relaying scheme useless for primary protection in MT-HVDC systems, but it can be useful for backup protection [68,69]. It is popularly used to protect the semiconductor valve from overheating [70]. In the OC protection scheme, an accurate setting for the time characteristic is very essential to ensure selectivity.…”

Section: Over-current/over-voltage Protectionmentioning

confidence: 99%

A Comprehensive Survey of HVDC Protection System: Fault Analysis, Methodology, Issues, Challenges, and Future Perspective

et al. 2023

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The extensive application of power transfer through high-voltage direct current (HVDC) transmission links in smart grid scenarios is due to many factors such as high-power transfer efficiency, decoupled interconnection, control of AC networks, reliable and flexible operation, integration of large wind and photovoltaic (PV)-based off-shore and on-shore farms, cost-effectiveness, etc. However, it is vital to focus on many other aspects like control, protection, coordinated operation, and power management to acquire the above benefits and make them feasible in real-time applications. HVDC protection is needed to focus further on innovative and devoted research because the HVDC system is more vulnerable to system faults and changes in operational conditions in comparison to AC transmission because of the adverse effects of low DC-side impedances and sensitive semi-conductor-based integrated power electronics devices. This paper provides a comprehensive review of the techniques proposed in the last three decades for HVDC protection, analyzing the advantages and disadvantages of each method. The review also examines critical findings and assesses future research prospects for the development of HVDC protection, particularly from the perspective of smart-grid-based power systems. The focus of the review is on bridging the gap between existing protection schemes and topology and addressing the associated challenges and issues. The aim is to inform power engineers and researchers about potential research avenues to tackle the challenges in HVDC protection in smart-grid-based power systems.

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Section: Over-current/over-voltage Protectionmentioning

confidence: 99%

A Comprehensive Survey of HVDC Protection System: Fault Analysis, Methodology, Issues, Challenges, and Future Perspective

et al. 2023

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A study of HVDC installation in Korean capital region power system

Yoon

Park

2012

2012 IEEE Power and Energy Society General Meeting

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Power system operators deal with the fault current problems seriously, because the large scale fault current not only cause many side effects to the facilities of power system but also lead to severe problems such as blackout. This paper deals with structural analysis and 3-phase fault current stability of the future Seoul metropolitan power system in Korea. Simulation composition and analysis were performed with the 4th Korea Electric & Power Cooperation (KEPCO) power supply planning data using PSS/e. Through the results of simulation, future Seoul metropolitan system has a problem, enormous fault current, which exceeds circuit breaker (CB) rate. This fault current can cause critical damage to power system. To resolve this problem, the algorithm for application of Voltage Sourced Converter Back-to-Back High Voltage Direct Current (VSC BTB HVDC) is being proposed. In the case study, this paper shows most suitable location for solving fault current problem in Seoul metropolitan area.Index Terms-circuit breaker rating, fault current, metropolitan power system, PSS/e, voltage stability

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