Abstract：Aimed at the insufficient capacity of mitigating electric arc furnaces(EAF) flicker problems for the traditional double-closed-loop control mode of static synchronous compensator (STATCOM), this paper calculates the compensation current command which achieves the minimum voltage fluctuation by analyzing the various EAF distribution network voltage and current phasor, and directly calculates the control voltage command according to the principle of the network instantaneous power equal to the STATCOM instantaneous power. So the STATCOM controller is less three PI regulators than the traditional dual-loop control mode, and the response time from the original 20ms is reduced to 10ms, so it improves the ability of voltage flicker suppression. Simulation and actual operating results verify that the proposed control strategy in this paper is effective and correct.
刘华东, 张定华, 唐建宇, 邱岳烽. 抑制电弧炉闪变的STATCOM直接电压控制研究[J]. 电工技术学报, 2012, 27(9): 41-47.
Liu Huadong, Zhang Dinghua, Tang Jianyu, Qiu Yuefeng. Research on Direct Voltage Control of STATCOM for Mitigating Electric Arc Furnaces Flicker. Transactions of China Electrotechnical Society, 2012, 27(9): 41-47.
[1] 罗安, 章兢, 付青. 新型注入式并联混合型有源电力滤波器[J]. 电工技术学报, 2005, 20(2): 51-55. Luo An, Zhang Jing, Fu Qing. Development of high-capacity hybrid active power filter[J]. Transactions of China Electrotechnical Society, 2005, 20(2): 51-55. [2] 汤赐, 罗安, 荣飞, 等. 混合型并联有源滤波器的设计及工程应用[J]. 电工技术学报, 2007, 22(6): 101-107. Tang Ci, Luo An, Rong Fei, et al. Design and application of hybrid type shunt active filter[J]. Transactions of China Electrotechnical Society, 2007, 22(6): 101-107. [3] 翁利民, 陈允平, 舒立平. 大型炼钢电弧炉对电网及自身的影响和抑制方案[J]. 电网技术, 2004, 28(2): 64-67. Weng Limin, Chen Yunping, Shu Liping. Influence of electric arc steel furnace on the power system and its suppression[J]. Power System Technology, 2004, 28(2): 64-67. [4] Arindam Ghosh, Avinsh Joshi. A new approach to load balancing and power factor correction in power distribution system[J]. IEEE Transactions on Power Delivery, 2000, 15(1): 417-422. [5] Toshihiko Tanaka, Shigeyuki Funabiki, Akira Nabae. A new approach to individual-phase reactive power compensator for nonsinusoidal and unbalanced three-phase system[J]. Electrical Engineering in Japan, 2002, 139(3): 73-80. [6] 《钢铁企业电力设计手册》编委会. 钢铁企业电力设计手册[M]. 北京: 冶金工业出版社, 1996. [7] 吴杰. 大型电弧炼钢炉SVC方案设计及其实际效果[J]. 电网技术, 2003, 27(1): 76-79. Wu Jie. Scheme design and its practical effect of SVC for a large scale arc furnace[J]. Power System Technology, 2003, 27(1): 76-79. [8] 李旷, 刘进军, 魏标, 等. 静止无功发生器补偿电网电压不平衡的控制及其优化方法[J]. 中国电机工程学报, 2006, 26(5): 58-63. Li Kuang, Liu Jinjun, Wei Biao, et al. Control and optimization of static var generator for grid voltage unbalance mitigation[J]. Proceedings of the CSEE, 2006, 26(5): 58-63. [9] 许湘莲, 邹云屏, 丁凯, 等. 基于相移级联多电平逆变器的STATCOM研究[J]. 高电压技术, 2005, 31(6): 59-62. Xu Xianglian, Zou Yunping, Ding Kai, et al. Study of STATCOM based on cascade multilevel inverter with phase2 shifted SPWM[J]. High Voltage Engineering, 2005, 31(6): 59-62. [10] 栗春, 姜齐荣, 王仲鸿. STATCOM电压控制系统性能分析[J]. 中国电机工程学报, 2000, 20(8): 46-50. Li Chun, Jiang Qirong, Wan Zhonghong. Voltage regulation stability analysis of STATCOM[J]. Proceedings of the CSEE, 2000, 20(8): 46-50. [11] 袁佳歆, 陈柏超, 万黎, 等. 利用配电网静止无功补偿器改善配电网电能质量的方法[J]. 电网技术, 2004, 28(19): 81-84. Yuan Jiaxin, Chen Baichao, Wan Li, et al. The method to improvepower quality of distribution system by distribution staticcompensentor[J]. Power System Technology, 2004, 28(19): 81-84. [12] Arindam Ghosh, Avinsh Josh. The use of instantaneoussysmmetrical components for balancing a delta connected load and power factor correction[J]. Electric Power Systems Research, 2000(54): 67-74. [13] Mienski R, Pawelek R, Wasiak I. Shunt compensation for powerquality improvement using a STATCOM controller: Modelling and simulation[J]. IEE Proceedings of Generation, Transmission and Distribution, 2004, 151(2): 274-280. [14] Sousa J, Correia de Barros M T, Covas M, et al. Harmonic and flicker analysis in arc furnace power system[C]. Proceedings of International Conference on Power Systems Transients, 1999: 626-630. [15] 魏文辉, 刘文华, 宋强, 等. 基于逆系统方法有功-无功解耦PWM控制的链式STATCOM动态控制策略研究[J]. 中国电机工程学报, 2005, 25(3): 23-28. Wei Wenhui, Liu Wenhua, Song Qiang, et al. Research on fast dynamic control of static synchronous compensator using cascademultilevel inverters[J]. Proceedings of the CSEE, 2005, 25(3): 23-28. [16] 张彦魁, 张焰, 卢国良. 基于PWM 控制及相角控制的静止同步补偿器潮流模型及应用[J]. 中国电机工程学报, 2005, 25(17): 42-47. Zhang Yankui, Zhang Yan, Lu Guoliang. Advanced model of STATCOM based on PWM and phase angle control for load flow and voltage stability analysis[J]. Proceedings of the CSEE, 2005, 25(17): 42-47. [17] 李晓露, 段献忠, 何仰赞. 不平衡系统中ASVG 动态建模研究[J]. 中国电机工程学报, 1999, 19(9): 76-80. Li Xiaolu, Duan Xianzhong, He Yangzan. Dynamic model of ASVG in unbalanced systems[J]. Proceedings of the CSEE, 1999, 19(9): 76-80. [18] 罗安, 欧剑波, 唐杰, 等. 补偿配电网电压不平衡的静止同步补偿器控制方法研究[J]. 中国电机工程学报, 2009, 29(6): 55-60. Luo An, Ou Jianbo, Tang Jie, RongFei, et al. Research on control method of STATCOM for grid voltage unbalance compensation[J]. Proceedings of the CSEE, 2009, 29(6): 55-60. [19] 王兆安, 杨君, 刘进军. 谐波抑制和无功功率补偿[M]. 北京: 机械工业出版社, 1998. [20] J L Agüero, F Issouribehere, P E Battaiotto. STATCOM modeling for mitigation of voltage- fluctuations caused by electric arc furnaces[J]. IEEE Transactions on Power Delivery, 2006, 13(6): 1-8. [21] Chen W L, Hsu Y Y. Direct output voltage control of a static synchronous compensator using current sensorless d-q vector-based power balancing scheme[J]. IEEE Transactions on Power Delivery, 2003, 2(7-12): 545-549. [22] 荣飞, 罗安, 范卿, 等. STATCOM 电压控制新方法[J]. 高电压技术, 2009, 35(5): 1177-1182. Rong Fei, Luo An, Fan Qing, et al. Novel voltage control method for STATCOM[J]. High Voltage Engineering, 2009, 35(5): 1177-1182.
2012, Vol. 27 
