Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity
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 m...
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MDPI AG
2024-02-01
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Online Access: | https://www.mdpi.com/1424-8220/24/5/1601 |
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author | Shuping Gao Xiaofang Li Guobing Song Han Zheng Yunqing Duan |
author_facet | Shuping Gao Xiaofang Li Guobing Song Han Zheng Yunqing Duan |
author_sort | Shuping Gao |
collection | DOAJ |
description | 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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language | English |
last_indexed | 2024-04-25T00:20:17Z |
publishDate | 2024-02-01 |
publisher | MDPI AG |
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spelling | doaj.art-971fb7cfd40444408e162436212820532024-03-12T16:55:21ZengMDPI AGSensors1424-82202024-02-01245160110.3390/s24051601Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance SimilarityShuping Gao0Xiaofang Li1Guobing Song2Han Zheng3Yunqing Duan4Department of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaDepartment of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaDepartment of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an 710054, ChinaThe 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.https://www.mdpi.com/1424-8220/24/5/1601hybrid DC multi-feed systempilot protectionvoltage waveformcomprehensive distance similarity |
spellingShingle | Shuping Gao Xiaofang Li Guobing Song Han Zheng Yunqing Duan Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity Sensors hybrid DC multi-feed system pilot protection voltage waveform comprehensive distance similarity |
title | Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity |
title_full | Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity |
title_fullStr | Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity |
title_full_unstemmed | Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity |
title_short | Hybrid Multi-Infeed Receiver Line Longitudinal Protection Scheme Based on Voltage Waveform Comprehensive Distance Similarity |
title_sort | hybrid multi infeed receiver line longitudinal protection scheme based on voltage waveform comprehensive distance similarity |
topic | hybrid DC multi-feed system pilot protection voltage waveform comprehensive distance similarity |
url | https://www.mdpi.com/1424-8220/24/5/1601 |
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