Fault detection of HVDC cable in multi‐terminal offshore wind farms using transient sheath voltage

Niaki, Seyed Hassan Ashrafi; Hosseini, Seyede Marzieh; Abdoos, Ali Akbar

doi:10.1049/iet-rpg.2016.0578

Cited by 21 publications

(3 citation statements)

References 40 publications

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“…The measured voltage at these ends is referred to as sheath voltage. Niaki et al [83] proposed a fault location scheme for an MT-HVDC grid using the sheath voltage of the DC cable. During no-fault conditions, the transient sheath voltage measures a null value; as a result, no current flows through it.…”

Section: Transient-based Methodsmentioning

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: Transient-based Methodsmentioning

confidence: 99%

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

et al. 2023

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“…Notably, it examines a configuration in which the distance between the generating-side wind farm and the onshore power system at the receiving end spans 100 km, as shown in ([8], Figure 1). The typical length of the offshore submarine HVDC cables is between 60 and 200 km, and 100 km is the average value of the typical length [9]. When discussing a multi-terminal DC system, researchers explore various structural configurations and investigate different aspects of the system.…”

Section: Introductionmentioning

confidence: 99%

The Study of Multi-Terminal DC Systems in an Offshore Wind Environment: A Focus on Cable Ripple Analysis

Rong,

Shek,

Macpherson

et al. 2024

Energies

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This paper studies the THD and AC losses on the DC cables of offshore wind farm-based multi-terminal HVDC systems when they extract and deliver power from and to more than one connection point. In the paper, the study of a full system PLECS + Simulink model with two branches, including a wind resource, a wind turbine, a Permanent Magnet Synchronous Generator (PMSG), a Pulse Width Modulation (PWM) rectifier, a Single Active Bridge (SAB) DC–DC converter, an Input Parallel Output Series (IPOS) DC–DC converter, HVDC cables, and a simplified onshore system, is presented. It focuses on the investigation of the output ripple content of multiple DC–DC converters on DC cables under different wind conditions with different voltage and power ratings. The importance of the study is providing a general understanding of the operation of the innovative offshore wind farm-based DC system, as well as the interaction between different DC–DC converters and their influence on cable ripple content under different situations.

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“…Besides, they have presented and explained several hybrid topologies, including different renewable energy sources. Under another point of view, in [5], the authors used an accurate and fast fault detection method for protection and maintaining uninterrupted power delivery to the grid based on wind farms. In this work, a novel method to diagnose cable faults and unbalancing of DC capacitor bank in multi‐terminal voltage source converter for offshore‐based application was presented.…”

Section: Introductionmentioning

confidence: 99%

Fault‐tolerant control of a smart PV‐grid hybrid system

Tiar

Betka

Drid³

et al. 2019

IET Renewable Power Generation

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This study deals with a fault-tolerant control of a smart PV-grid plant. The small scale system is dedicated to a stationary alternative current load and it consists of a photovoltaic module, supported by a single-phase grid. To ensure a smart permutation between the two proposed operation modes, a fuzzy logic-based power management algorithm is designed and implemented. In case of a subsystem failure, a fault-tolerant control technique is adopted to maintain the service continuity. In this study, two scenarios are proposed. The first concerns a load current sensor failure, where a material redundancy is adopted through the use of two observers, selected via a voting algorithm. The second deals to sense the system ability to maintain the service continuity in the worst case, where a grid blackout (grid-off) is planned. In this scenario, an additional functioning mode is added to reconfigure the control strategy. To prove the effectiveness of the proposed algorithms, the obtained experimental results with a given load profile are presented and commented. C dc DC bus capacity, µF V dc , V dcref actual and reference DC link voltages, V Z normalised tank pressure FLC fuzzy logic controller

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Fault detection of HVDC cable in multi‐terminal offshore wind farms using transient sheath voltage

Cited by 21 publications

References 40 publications

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

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

The Study of Multi-Terminal DC Systems in an Offshore Wind Environment: A Focus on Cable Ripple Analysis

Fault‐tolerant control of a smart PV‐grid hybrid system

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