LARGE-SCALE PHOTOVOLTAIC TRANSMISSION LINE PILOT PROTECTION BASED ON HELLINGER DISTANCE

Zheng Zehang; Zou Guibin; Zheng Xincheng; Zhang Shuo; Lin Xiangyu; Wang Xiaoming

doi:10.19912/j.0254-0096.tynxb.2024-1076

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (10) : 267-275. DOI: 10.19912/j.0254-0096.tynxb.2024-1076

LARGE-SCALE PHOTOVOLTAIC TRANSMISSION LINE PILOT PROTECTION BASED ON HELLINGER DISTANCE

Zheng Zehang¹, Zou Guibin¹, Zheng Xincheng¹, Zhang Shuo¹, Lin Xiangyu², Wang Xiaoming²

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Abstract

This paper theoretically analyzes the current characteristics after a fault occurs in the transmission line of large-scale photovoltaic power generation, and proposes a large-scale photovoltaic transmission line pilot protection method based on the Hellinger distance. The current sampling values after the fault are discretized into probability distributions, and the similarity of the sampling value distribution on both sides is quantified using the Hellinger distance algorithm. The internal and external faults are judged based on the calculation results. The simulation verification shows that the proposed method can reliably respond to the internal and external faults of the protected line, and has good anti-noise and anti-synchronization error capabilities. Compared with the existing similarity protection and traditional pilot current differential protection, the proposed protection principle is more reliable.

Key words

photovoltaic power / intewal distributions / power transmission lines / Hellinger distance / pilot protection

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Zheng Zehang, Zou Guibin, Zheng Xincheng, Zhang Shuo, Lin Xiangyu, Wang Xiaoming. LARGE-SCALE PHOTOVOLTAIC TRANSMISSION LINE PILOT PROTECTION BASED ON HELLINGER DISTANCE[J]. Acta Energiae Solaris Sinica. 2025, 46(10): 267-275 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1076

References

[1] 周远翔, 陈健宁, 张灵, 等. “双碳” 与“新基建” 背景下特高压输电技术的发展机遇[J]. 高电压技术, 2021, 47(7): 2396-2408.
ZHOU Y X, CHEN J N, ZHANG L, et al.Opportunity for developing ultra high voltage transmission technology under the emission peak, carbon neutrality and new infrastructure[J]. High voltage engineering, 2021, 47(7): 2396-2408.
[2] 包文俊, 葛敏, 袁毅, 等. 计及需求响应的风光储独立微电网技术经济优化[J]. 太阳能学报, 2024, 45(5): 343-350.
BAO W J, GE M, YUAN Y, et al.Techno-economic optimization of wind/photovoltaic/storage independent microgrid considering demand response[J]. Acta energiae solaris sinica, 2024, 45(5): 343-350.
[3] 刘轶, 王景钢. 大型光伏电站并网暂态特性研究[J]. 电力系统保护与控制, 2021, 49(7): 182-187.
LIU Y, WANG J G.Analysis of transient characteristics when large-scale photovoltaics are connected to a power system[J]. Power system protection and control, 2021, 49(7): 182-187.
[4] 李彦宾, 贾科, 毕天姝, 等. 电流差动保护在逆变型新能源场站送出线路中的适应性分析[J]. 电力系统自动化, 2017, 41(12): 100-105.
LI Y B, JIA K, BI T S, et al.Adaptability analysis of current differential protection of outgoing transmission line emanating from inverter-interfaced renewable energy power plants[J]. Automation of electric power systems, 2017, 41(12): 100-105.
[5] 高淑萍, 蔚坤, 宋国兵, 等. 适用于双馈风电场送出线的纵联方向保护研究[J]. 太阳能学报, 2024, 45(01): 218-225.
GAO S P, WEI K, SONG G B, et al.Research on pilot direction protection suitable for doubly-fed wind farm outgoing line[J]. Acta energiae solaris sinica, 2024, 45(1): 218-225.
[6] 邓成江. 含逆变型分布式电源配电网的故障分量特征分析及保护方法研究[D]. 广州: 华南理工大学, 2021.
DENG C J.Analysis of fault component characteristics and research on protection methods for distribution networks with inverter-based distributed generators[D]. Guangzhou: South China University of Technology, 2021.
[7] 晁晨栩, 郑晓冬, 高飘, 等. 针对光伏场站送出线路不对称短路故障的自适应距离保护原理[J]. 中国电机工程学报, 2022, 42(18): 6681-6693.
CHAO C X, ZHENG X D, GAO P, et al.Adaptive distance protection for transmission line of photovoltaic station during asymmetric short circuit[J]. Proceedings of the CSEE, 2022, 42(18): 6681-6693.
[8] 李彦宾, 贾科, 毕天姝, 等. 逆变型电源对故障分量方向元件的影响机理研究[J]. 电网技术, 2017, 41(10): 3230-3236.
LI Y B, JIA K, BI T S, et al.Influence mechanism of inverter-interfaced renewable energy generators on fault component based directional relay[J]. Power system technology, 2017, 41(10): 3230-3236.
[9] 吕晓, 刘益青, 郭浩, 等. 光伏场站送出线路采样值差动保护的谐波影响分析及改进[J]. 山东电力技术, 2021, 48(3): 18-26.
LYU X, LIU Y Q, GUO H, et al.Influence analysis and improvement of harmonic on sampled value differential protection for out-going lines connected to photovoltaic power plants[J]. Shandong electric power, 2021, 48(3): 18-26.
[10] 岳清, 束洪春, 孙士云, 等. 适用于全故障类型的双馈风电场送出线负序电流纵联保护方案[J]. 太阳能学报, 2024, 45(4): 214-225.
YUE Q, SHU H C, SUN S Y, et al.Negative sequence current pilot protection scheme for DFIG outgoing line with all-fault types[J]. Acta energiae solaris sinica, 2024, 45(4): 214-225.
[11] 季亮, 张林楠, 姜恩宇, 等. 提升距离保护适应性的新能源主动故障控制研究[J]. 太阳能学报, 2022, 43(7): 22-29.
JI L, ZHANG L N, JIANG E Y, et al.Research on new energy active fault control to improve adaptability of distance protection[J]. Acta energiae solaris sinica, 2022, 43(7): 22-29.
[12] 刘玮, 赖清华, 刘慧媛, 等. 适用于逆变型电源接入的故障方向判别新方法[J]. 电力自动化设备, 2020, 40(1): 205-211.
LIU W, LAI Q H, LIU H Y, et al.Novel method of fault direction identification for inverter-interfaced power supply access[J]. Electric power automation equipment, 2020, 40(1): 205-211.
[13] 冀肖彤, 柳丹, 肖繁, 等. 基于无功电流波形相关性的逆变型电源电站送出线故障方向判别原理[J]. 高电压技术, 2023, 49(11): 4816-4826.
JI X T, LIU D, XIAO F, et al.Study of the fault direction identification method a reactive current waveform correlation based for outgoing line of inverter-interfaced renewable energy power plant[J]. High voltage engineering, 2023, 49(11): 4816-4826.
[14] 庞清乐, 刘昱超, 李希年, 等. 基于电流极性比较的主动配电网故障定位方法[J]. 电力系统保护与控制, 2018, 46(20): 101-108.
PANG Q L, LIU Y C, LI X N, et al.Current polarity comparison based fault location for active distribution network[J]. Power system protection and control, 2018, 46(20): 101-108.
[15] 毕天姝, 李彦宾, 贾科, 等. 基于暂态电流波形相关性的新能源场站送出线路纵联保护[J]. 中国电机工程学报, 2018, 38(7): 2012-2019.
BI T S, LI Y B, JIA K, et al.Transient current waveform similarity based pilot protection for transmission lines connected to renewable energy power plants[J]. Proceedings of the CSEE, 2018, 38(7): 2012-2019.
[16] 瞿继平, 吴兴全, 闫凯, 等. 光伏电站弱电源特性对送出线路继电保护的影响[J]. 电力自动化设备, 2015, 35(5): 146-151.
QU J P, WU X Q, YAN K, et al.Influence of PV station weak power feature on relay protection of outgoing transmission line[J]. Electric power automation equipment, 2015, 35(5): 146-151.
[17] 贺家李, 李永丽, 董新洲, 等. 电力系统继电保护原理[M]. 4版. 北京: 中国电力出版社, 2010.
HE J L, LI Y L, DONG X Z, et al.Principle of power system relay protection[M]. 4th ed. Beijing: China Electric Power Press, 2010.
[18] 李阳林, 周友武, 刘箐, 等. 220 kV输电线路不明原因高阻接地故障仿真分析与应用[J]. 水电能源科学, 2015, 33(7): 188-191.
LI Y L, ZHOU Y W, LIU Q, et al.Simulation analysis and application of unexplained high resistance grounding fault in 220 kV transmission line[J]. Water resources and power, 2015, 33(7): 188-191.