Performance Improvement for Pilot Protection of Double Circuit Lines on the Same Tower Based on Power Converse Accurate Identification

Huang, Kai; Jiao, Bo; Yu, Yang; Liu, Hongliang; Hao, Quan; Liu, Yiqing

doi:10.1109/apap59666.2023.10348400

2023 IEEE International Conference on Advanced Power System Automation and Protection (APAP) 2023

DOI: 10.1109/apap59666.2023.10348400

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Performance Improvement for Pilot Protection of Double Circuit Lines on the Same Tower Based on Power Converse Accurate Identification

Kai Huang,

Bo Jiao,

Yang Yu

et al.

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2024

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Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity

Gao,

Li,

Song

et al. 2024

Sensors

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The coupling of AC and DC power will impact the protective actions on the AC side and pose a threat to the stable operation of the interconnection system. Therefore, a new longitudinal protection method is proposed based on the comprehensive distance similarity of voltage waveforms. Initially, the measured voltage and current data are extracted to calculate the reference voltage, and the voltage waveform fitting is optimized. Subsequently, the Euclidean dynamic time warp (DTW) distance and entropy weight method are utilized to process the voltage waveform, enabling the calculation of its comprehensive distance similarity. This similarity is adopted to determine fault location. A hybrid DC multi-feed AC/DC interconnection system, incorporating a line commutated converter-voltage source converter (LCC-VSC) and a line commutated converter-modular multilevel converter (LCC-MMC), was established in PSCAD, and fault data were simulated and output. The effectiveness of the protection scheme was validated using MATLAB. Simulation results demonstrate that the proposed method can accurately distinguish between faults inside and outside a region. When compared to existing protection methods, it demonstrates superior performance in resisting transition resistance and noise interference, while also mitigating the impact of data asynchronicity. The speed and reliability of the method are further enhanced.

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Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity

Gao,

Li,

Song

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

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Performance Improvement for Pilot Protection of Double Circuit Lines on the Same Tower Based on Power Converse Accurate Identification

Cited by 1 publication

References 9 publications

Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity

Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity

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