Abstract：Due to mainly supply power to non-linear load, harmonic pollution is very serious in some 220kV substations. The traditional solution is connecting the LC filters to the low voltage side, which can suppress harmonic and compensate reactive power. Because of the constraint of low-voltage winding’s equivalent impedance, this filtering method is not very effective. A new program of harmonic suppression in 220kV substation is presented in this paper. In this program, an independent additional transformer winding is used to connect filters, whose equivalent impedance is specially designed to zero. Principles of traditional and new filtering method are derived, and the superiority of the new program is analyzed. A 180MVA 220kV three-phase transformer is designed which contains an additional winding whose equivalent impedance is about zero. A field-circuit coupled simulation model is build based on Ansoft software. In the final, the laboratory prototype is tested. The simulation and testing results verify the good filtering effect of the new program.
王灿, 罗隆福, 陈跃辉, 周冠东, 李晓芳, 许加柱, 李勇. 220kV变压器附加绕组专接滤波器的谐波治理方案[J]. 电工技术学报, 2015, 30(1): 186-194.
Wang Can, Luo Longfu, Chen Yuehui, Zhou Guandong, Li Xiaofang, Xu Jiazhu, Li Yong. A Program of Harmonic Suppression with Filters Connected to the 220kV Transformer’s Additional Winding. Transactions of China Electrotechnical Society, 2015, 30(1): 186-194.
[1] 张定华, 桂卫华, 王卫安, 等. 新型电气化铁道电能质量综合补偿系统的研究及工程应用[J]. 电工技术学报, 2009, 24(3): 189-194. Zhang Dinghua, Gui Weihua, Wang Weian, et al. Study and application of a new power quality combined compensation system for electrified railway[J]. Transac- tions of China Electrotechnical Society, 2009, 24(3): 189-194. [2] 律方成, 徐志钮, 李和明. 结合粗调和细调的电力系统谐波分析算法[J]. 电工技术学报, 2007, 22(6): 114-120. Lü Fangcheng, Xu Zhiniu, Li Heming. An algorithm with coarse adjustment and fine adjustment for power system harmonics analysis[J]. Transactions of China Electrotechnical Society, 2007, 22(6): 114-120. [3] 蒋毅. 广元市电网谐波抑制方法研究[D]. 重庆: 重庆大学, 2002. [4] 郭锟明. 沙坡变电站谐波分析与治理[D]. 南宁: 广西大学, 2008. [5] Arri E, Locci N, Mocci F. Measurement of transformer power losses and efficiency in real working conditions [J]. IEEE Transactions on Instrumentation and Measure- ment, 1991, 40(2): 384- 387. [6] 张占龙, 王科, 李德文, 等. 变压器谐波损耗计算及影响因素分析[J]. 电力系统保护与控制, 2011, 39(4): 68-72. Zhang Zhanlong, Wang Ke, Li Dewen, et al. Transformer harmonic loss calculation and influence factor analysis[J]. Power System Protection and Control, 2011, 39(4): 68-72. [7] 郝福忠, 赵锋, 李晋城, 等. 考虑电网谐波影响的电容器投切研究[J]. 电力系统保护与控制, 2011, 39(4): 79-83. Hao Fuzhong, Zhao Feng, Li Jincheng, et al. Research of capacitor switching considering harmonic influence [J]. Power System Protection and Control, 2011, 39(4): 79-83. [8] 王效华, 张咏梅. 无功补偿电容器谐波过载保护的研究[J]. 电力系统保护与控制, 2008, 36(16): 25-29. Wang Xiaohua, Zhang Yongmei. Study of the reactive compensation capacitor harmonics over-load protection [J]. Power System Protection and Control, 2008, 36(16): 25-29. [9] 马亮, 钱珞江. 谐波对集合式并联电容器内部故障保护的影响[J]. 电力系统保护与控制, 2010, 38(15): 87-90. Ma Liang, Qian Luojiang. Impact of harmonics on the internal fault protections of assembling capacitor[J]. Power System Protection and Control, 2010, 38(15): 87-90. [10] 宁志毫, 罗隆福, 李勇, 等. 大功率整流系统谐波功率特性及其对电能计量的影响和节能分析[J]. 电工技术学报, 2012, 27(11): 248-255. Ning Zhihao, Luo Longfu, Li Yong, et al. Analysis of energy saving and harmonic power characteristics and its effects on electric energy measurement in high power rectifier system[J]. Transactions of China Electrotechnical Society, 2012, 27(11): 248-255. [11] 陈剑, 李炜. 某220kV变电站谐波治理的研究[J]. 湖南电力, 2009, 29(2): 12-14. Chen Jian, Li Wei. Research on harmonic suppression for one 220kV substation[J]. Hunan Electric Power, 2009, 29(2): 12-14. [12] 黄永宁. 惠农220kV变电站并补装置改造为滤波装置的实践及效果分析[J]. 宁夏电力, 2007, 27(Z1): 27-32. Huang Yongning. Practice and effective analysis on Huinong 220kV substation shunt compensation device reformed into filtration device[J]. Ningxia Electric Power, 2007, 27(Z1): 27-32. [13] 同向前, 薛钧义. 电力调谐滤波器的最佳偏调谐设计[J]. 电工技术学报, 2005, 20(4): 98-101. Tong Xiangqian, Xue Junyi. Tuned power filter with optimal tuned frequency[J]. Transactions of China Electrotechnical Society, 2005, 20(4): 98-101. [14] 中国国家标准化管理委员会. GB/T6451—2008油浸式电力变压器技术参数和要求[S]. 北京: 中国标准出版社, 2008. [15] 李升. 变电站电压无功控制理论与设计[M]. 北京: 中国水利水电出版社, 2009. [16] 陈保刚, 赵书强, 杨颖. 考虑谐波因素的变电站电压无功自动控制研究[J]. 电力自动化设备, 2006, 26(4): 43-46. Chen Baogang, Zhao Shuqiang, Yang Ying. VQC in substation considering harmonic wave[J]. Electric Power Automation Equipment, 2006, 26(4): 43-46. [17] 尹克宁. 变压器设计原理[M]. 北京: 中国电力出版社, 2003.
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