Analysis on Influence of Large Capacity SVC Reactor on Low Voltage DC Power Supply for Station and Preventive Measures

doi:10.11930/j.issn.1004-9649.202102078

Abstract

Abstract: The influence of phase controlled reactors of a large capacity SVC on the low voltage DC power supply of a power substation can be very serious. In order to understand this influence, field measurement of SVC is carried out in a substation. Furthermore, a three-dimension electromagnetic field simulation model is established for SVC and its adjacent area. A full-scale model is established in the laboratory to verify the equivalence of the simulation results through comparison with the field measurement. An analysis is made on the improvement of DC power quality brought about by different shielding materials and related problems. The results show that the influence of phase controlled reactors of a large capacity SVC on the low voltage DC power supply of a power substation has exceeded the allowable value stipulated by relevant code, and the layout optimization of silicon steel sheet, aluminum plate and iron plate can effectively reduce the interference, and the resulting inductance change and heating are acceptable.

Key words: static var compensator, DC power supply, power quality, risk coefficient for protection malfunction, voltages to ground offset coefficient

WEN Caiquan, QUAN Jiexiong, ZHOU Kai, PAN Longbin, LI Cheng. Analysis on Influence of Large Capacity SVC Reactor on Low Voltage DC Power Supply for Station and Preventive Measures[J]. Electric Power, 2021, 54(12): 45-53.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202102078

https://www.electricpower.com.cn/EN/Y2021/V54/I12/45

References

[1] 张婷婷, 赵宇鑫, 宋晓通, 等. 110kV长距离输电系统增容补偿方案研究[J]. 智慧电力, 2019, 47(12): 93–97
ZHANG Tingting, ZHAO Yuxin, SONG Xiaotong, et al. Capacity-expansion compensation scheme for 110kV long-distance transmission systems[J]. Smart Power, 2019, 47(12): 93–97
[2] 周芳, 卿梦琪, 唐飞, 等. 动态无功补偿装置抑制直流换相失败能力影响因素研究[J]. 智慧电力, 2019, 47(3): 77–83
ZHOU Fang, QING Mengqi, TANG Fei, et al. Analysis on factors affecting ability of dynamic reactive power compensation device to eliminate DC commutation failure[J]. Smart Power, 2019, 47(3): 77–83
[3] 汪先进, 周凯, 赵世林, 等. 不同材料对变电站内三相空心电抗器磁场干扰的屏蔽效果研究[J]. 电力科学与技术学报, 2021, 36(4): 150–156
WANG Xianjin, ZHOU Kai, ZHAO Shilin, et al. Research for magnetic shielding effect of 3-phase air core reactor in substation by using different materials[J]. Journal of Electric Power Science and Technology, 2021, 36(4): 150–156
[4] 李志坚, 吴崇昊, 万洛飞, 等. 大型同步调相机的启机过程分析与启机保护实现[J]. 电力系统保护与控制, 2020, 48(20): 148–154
LI Zhijian, WU Chonghao, WAN Luofei, et al. Analysis of start-up process and implementation of start-up protection of a large synchronous condenser[J]. Power System Protection and Control, 2020, 48(20): 148–154
[5] 祝佳佩, 赵文彬. 考虑线路潮流波动对母线电压影响的特高压交流电网电压控制策略[J]. 电力系统保护与控制, 2021, 49(6): 76–82
ZHU Jiapei, ZHAO Wenbin. Voltage control strategy of a UHV AC power grid considering the influence of line power flow fluctuation on bus voltage[J]. Power System Protection and Control, 2021, 49(6): 76–82
[6] 韩传鼎, 谭锦鹏, 何师. 500 kV梧州变电站静止无功补偿装置在电压及慢速导纳控制下的行为分析[J]. 南方电网技术, 2010, 4(1): 55–59
HAN Chuanding, TAN Jinpeng, HE Shi. Behavior analysis of the static var compensator at Wuzhou 500 kV substation under voltage control and slow susceptance control[J]. Southern Power System Technology, 2010, 4(1): 55–59
[7] 韩宏飞, 姚金雄, 吴瑜珲, 等. 电气化铁路中SVC负序补偿应用技术研究[J]. 电网与清洁能源, 2009, 25(6): 28–31
HAN Hongfei, YAO Jinxiong, WU Yuhui, et al. SVC negative sequence compensation in electrical railway[J]. Power System and Clean Energy, 2009, 25(6): 28–31
[8] 国家能源局. 直流电源系统绝缘监测装置技术条件：DL/T 1392—2014[S]. 北京: 中国电力出版社, 2015.
National Energy Bureau of the People's Republic of China. Technical specification of insulation monitoring devices for DC power system: DL/T 1392—2014[S]. Beijing: China Electric Power Press, 2015.
[9] 温才权, 赵世林, 周凯, 等. 大型空心电抗器对直流系统影响的测试与仿真[J]. 电力系统保护与控制, 2017, 45(20): 52–57
WEN Caiquan, ZHAO Shilin, ZHOU Kai, et al. Measurement and simulation for the impact on DC system in large-scale air-core reactors[J]. Power System Protection and Control, 2017, 45(20): 52–57
[10] 杨雷娟. 空心电抗器工频磁场干扰屏蔽措施的研究[D]. 北京: 华北电力大学(北京), 2009.
YANG Leijuan. Power frequency magnetic field shielding measures analysis of air-core reactor[D]. Beijing: North China Electric Power University, 2009.
[11] 宫攀. 基于缩比实验法的空心电抗器空间磁场研究[D]. 济南: 山东大学, 2013.
GONG Pan. Study of magnetic field of air-core reactors using small-scale experimental technique[D]. Jinan: Shandong University, 2013.
[12] 杜华珠, 文习山, 鲁海亮, 等. 35 kV三相空心电抗器组的磁场分布[J]. 高电压技术, 2012, 38(11): 2858–2862
DU Huazhu, WEN Xishan, LU Hailiang, et al. Magnetic field distribution around 35 kV three-phase air-core reactors[J]. High Voltage Engineering, 2012, 38(11): 2858–2862
[13] 赵世林, 周凯, 温才权, 等. 大型SVC中三相电抗器的电磁干扰测试与屏蔽措施评估[J]. 电网技术, 2018, 42(3): 1007–1014
ZHAO Shilin, ZHOU Kai, WEN Caiquan, et al. Electromagnetic interference and shielding effect of 3-phase air core reactors for large SVC equipment[J]. Power System Technology, 2018, 42(3): 1007–1014
[14] 李永明, 徐禄文, 俞集辉, 等. 35 kV干式空心电抗器下工频磁场抑制[J]. 高电压技术, 2010, 36(12): 2960–2965
LI Yongming, XU Luwen, YU Jihui, et al. Intensity control of power frequency magnetic field under 35 kV dry-type air-core reactor[J]. High Voltage Engineering, 2010, 36(12): 2960–2965
[15] 欧阳樟, 刘全峰, 梁艺超, 等. 干式空心电抗器工频磁场屏蔽方法的研究[J]. 电力电容器与无功补偿, 2013, 34(6): 66–73,79
OUYANG Zhang, LIU Quanfeng, LIANG Yichao, et al. Study on power frequency magnetic field shielding method of dry air-core reactor[J]. Power Capacitor & Reactive Power Compensation, 2013, 34(6): 66–73,79
[16] 季娟. 空心电抗器工频磁场计算及改善磁场分布的研究[D]. 重庆: 重庆大学, 2009.
JI Juan. Research on the calculation of power frequency magnetic field of air-core reactor and its distribution improvement[D]. Chongqing: Chongqing University, 2009.
[17] 余志飞. SVC中空心电抗器磁屏蔽措施研究和结构优化[D]. 北京: 华北电力大学(北京), 2014.
YU Zhifei. Research on magnetic shielding measures and structure optimization of air-core reactor used in SVC[D]. Beijing: North China Electric Power University, 2014.
[18] BECHERINI G, DI FRAIA S, CIOLINI R, et al. Shielding of high magnetic fields[C]//IEEE Transactions on Magnetics. IEEE, 2009: 604–609.
[19] MOROZIONKOV J, VIRBALIS J A. Shielding of electric reactor magnetic field[J]. Electronics & Electrical Engineering, 2015, 96(8): 15–18.
[20] LEE S Y, LIM Y S, CHOI I H, et al. Effective combination of soft magnetic materials for magnetic shielding[J]. IEEE Transactions on Magnetics, 2012, 48(11): 4550–4553.
[21] 高成, 刘晓, 石立华, 等. 低频强磁场屏蔽效能的测试方法与测试设备研制[J]. 高电压技术, 2010, 36(9): 2272–2277
GAO Cheng, LIU Xiao, SHI Lihua, et al. Measurement method and measurement equipment development for low-frequency magnetic field[J]. High Voltage Engineering, 2010, 36(9): 2272–2277
[22] 冯慈璋, 马西奎. 工程电磁场导论[M]. 北京: 高等教育出版社, 2000: 120.
[23] 中华人民共和国国家质量监督检验检疫总局, 中国国家标准化管理委员会. 电力变压器第6部分: 电抗器: GB/T 1094.6—2011[S]. 北京: 中国标准出版社, 2011.
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China. Power transformers—part 6: reactors: GB/T 1094.6—2011[S]. Beijing: Standards Press of China, 2011.
[24] 邹亮, 宫攀, 张黎, 等. 干式空心电抗器空间磁场缩比试验与模型简化[J]. 高电压技术, 2014, 40(6): 1675–1682
ZOU Liang, GONG Pan, ZHANG Li, et al. Small-scale experiment and model simplification of space magnetic fields around air-core reactors[J]. High Voltage Engineering, 2014, 40(6): 1675–1682
[25] 谭闻, 张小武. 电力变压器噪声研究与控制[J]. 高压电器, 2009, 45(2): 70–72,76
TAN Wen, ZHANG Xiaowu. Investigation and control of power transformer noise[J]. High Voltage Apparatus, 2009, 45(2): 70–72,76