Coupling characteristic analysis and a fault Pole detection Scheme for single-circuit and double-circuit HVDC transmission lines

Chu, Xiangxiang; Lv, Haoze

doi:10.1016/j.epsr.2019.106179

Cited by 8 publications

(5 citation statements)

References 13 publications

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“…Cascading of AC-lines-outage is avoided by modulating close-loop control DC power in HVDC-line during the emergency period the HVAC line [10]. Fast-fault detection is applied, include on pole-and-line for both the single and double lines HVDC protection [11], and a commutation failure prevention model is designed by optimizing the value of resistance to minimize extinction angle in HVDC [12], a transient current is suppressed by supplementary control (SC) in rectifier HVDC [13], active disturbance rejection the SC is used to dampen oscillation in HVDC-line [14], and a novel SC is also applied to damp oscillation on maximum available power of extreme-weak AC-system [15]. Artificial intelligent (AI) applications in electrical and energy systems are introduced as follows: Machine learning is used to protect fault detection and classification scheme [16], and to search the fault location in HVDC systems [17].…”

Section: Introductionmentioning

confidence: 99%

Transient response mitigation using type-2 fuzzy controller optimized by grey wolf optimizer in converter high voltage direct current

Ginarsa,

Nrartha,

Muljono

et al. 2024

IJECE

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Long high voltage direct current (HVDC) transmission link is commonly used to transmit electrical energy via land or under-sea cable. The long HVDC avoids reactive power losses (RPL) and power stability problems (PSP). On the contrary, the RPL and PSP phenomena occur in long high voltage alternative current-link (HVAC) caused by the high reactive component in the HVAC-link. However, the HVDC produces a high and slow transient current response (TCR) on the high value of the up-ramp rate. Interval type-2 fuzzy (IT2F) control on converter-side HVDC is proposed to mitigate this TCR problem. The IT2F is optimized by grey wolf optimizer (GWO) to adjust input-output IT2F parameters optimally. The performance of IT2F-GWO is assessed by the minimum value of integral time squared error (ITSE), peak overshoot, and settling time of the TCR. The IT2FC-GWO performance is validated by the performance of IT2F control that is optimized by genetic algorithm (IT2F-GA) and proportional integral (PI) controller. Simulation results show that the IT2F-GWO performs better with small ITSE, low peak overshoot, and shorter settling times than competing controllers.

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Section: Introductionmentioning

confidence: 99%

Transient response mitigation using type-2 fuzzy controller optimized by grey wolf optimizer in converter high voltage direct current

Ginarsa,

Nrartha,

Muljono

et al. 2024

IJECE

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“…Wang et al [12] proposed a fault line selection method for dual-circuit DC transmission lines using voltage spikes based on the decoupling theory of four-wire systems. According to [13], fault pole selection is based on lowfrequency electrical quantities derived from spectral characteristics post-fault. Zhou et al [14] constructed a selection criterion based on the amplitude ratio of accumulated quantities of bipolar transient currents using Laplace's theorem.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive diagnostic method for UHVDC commutation failure considering the influence of AC/DC coupling

Zhuang,

Xiao

2024

J. Phys.: Conf. Ser.

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Commutation failure is one of the most common faults in Ultra High Voltage Direct Current (UHVDC) systems. As voltage levels and transmission capacities continue to increase, the degree of coupling between AC and DC intensifies, making the commutation failure problem more complex. Identifying the source of failure is of significant practical value in enhancing the operational reliability of UHVDC systems. A comprehensive diagnosis method for UHVDC commutation failure considering the impact of AC/DC coupling is proposed in the article. Firstly, the fault types are classified based on the commutation failure ledger within the converter station. The variation in AC voltage is utilized to trace the fault layers and types of AC grid faults under interlayer coupling. The ratio of the integrated change in bipolar DC current is employed to select fault poles under intrapolar coupling. Building upon the analysis of the interaction between AC and DC coupling, a comprehensive diagnostic method for commutation failures is presented. Finally, the correctness and effectiveness of the proposed method and criterion are verified through calculation and analysis of on-site recording data, providing a practical method for locating the source of commutation failure faults.

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“…For example, the EGAT-TNB HVDC transmission system, which increases the stability of the network in Southern ailand and connects the ASEAN network in the future project of "ASEAN Power Grid," was studied using the ATP program to control powers. It was also used to analyse fault events [48][49][50][51][52][53], fault signals [54][55][56], and fault location [57]. e power flow of this system was analysed using dynamic simulation to validate the stability and reliability of the operation of the HVDC transmission line [58][59][60][61][62][63].…”

Section: Introductionmentioning

confidence: 99%

Effects of Conditional Changes on High-Voltage Direct Current Transmission Line Characteristic

Pothisarn

Ngaopitakkul

Leelajindakrairerk

et al. 2022

Journal of Electrical and Computer Engineering

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The high-voltage direct current (HVDC) transmission system, which links the Gurun Substation of the National Electric Authority of Malaysia (Tenaga Nasional Berhad, TNB) with the Khlong Ngae Station of the Electricity Generating Authority of Thailand (EGAT), has been extensively researched to achieve the highest quality because it is the largest of its kind in Thailand, and there is a plant to expand its transmission power. However, the impact on the whole system is under-researched. To study and develop this system, the HVDC transmission line is modelled with the MATLAB/Simulink program and a laboratory setup to investigate the effect of transmission line distance, load power, and voltage on power loss, voltage drop, and waveform. The HVDC transmission line parameters are calculated from the actual transmission line parameters and converted to the simulation model parameters using the per-unit method. The model is verified and tested by the simulation program before creating the experimental setup. The simulation and experimental results demonstrate the effects of changing system conditions via the three aspects. All the three conditions directly affect the HVDC transmission line; nevertheless, they affect each aspect differently.

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Coupling characteristic analysis and a fault Pole detection Scheme for single-circuit and double-circuit HVDC transmission lines

Cited by 8 publications

References 13 publications

Transient response mitigation using type-2 fuzzy controller optimized by grey wolf optimizer in converter high voltage direct current

Transient response mitigation using type-2 fuzzy controller optimized by grey wolf optimizer in converter high voltage direct current

A comprehensive diagnostic method for UHVDC commutation failure considering the influence of AC/DC coupling

Effects of Conditional Changes on High-Voltage Direct Current Transmission Line Characteristic

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