Novel Rapid Power Switching Strategy and Its Parameter Calculation of Induction Motor-Load Based on Solid State Transfer Switch
Cui Xueshen1, Zhang Zili2, Wang Zezhong1, Li Heming1, Yang Yaping3
1. School of Electrical and Electronic Engineering North China Electric Power University Beijing 102206 China; 3. State Grid Handan electric Power Supply Company Handan 056002 China; 2. State Grid Heibei Cheng’an Electric Power Company Cheng’an 056700 China
Abstract:As an important load of naval vessels, electric plants and steel plants, induction motor should be switched rapidly from main source to alternative source after its power outages. However, the transient inrush produced by such dynamic load under the adverse conditions would have serious consequences. Accordingly, a novel rapid power switching control strategy of induction motor load was proposed based on solid state transfer switch (SSTS) in this paper. The proposed strategy could not only rapidly transfer the critical load from main source to alternative source, but also effectively suppress the transient inrush under the condition of the various phase-angle differences between the two sources. Then, the complex transient of induction motor during the switching control process of the alternative source was analyzed. And the main factors affecting the suppression of the transient inrush were discussed. Besides, the relationship between control parameters and current peak values was explained when the phase-angle difference between the two sources was known. The control parameters could be obtained by the requirement of the current-limit suppression. Finally, the calculation and test results of the stator currents verified that the proposed rapid power switching strategy and the parameters calculation were correct and effective.
崔学深, 张自力, 王泽忠, 李和明, 杨娅萍. 基于固态切换开关的感应电机类负荷电源快速切换新策略及参数计算[J]. 电工技术学报, 2016, 31(18): 21-28.
Cui Xueshen, Zhang Zili, Wang Zezhong, Li Heming, Yang Yaping. Novel Rapid Power Switching Strategy and Its Parameter Calculation of Induction Motor-Load Based on Solid State Transfer Switch. Transactions of China Electrotechnical Society, 2016, 31(18): 21-28.
[1] Goswami A K, Gupta C P, Singh G K. Voltage sag assessment in a large chemical industry[J]. IEEE Transactions on Industry Applications, 2012, 48(5): 1739-1746. [2] 王焕文. 舰船电力系统及自动装置[M]. 北京: 科学出版社, 2004. [3] Hornak D L, Zipse D W. Automated bus transfer control for critical industrial processes[J]. IEEE Transactions on Industry Applications, 1991, 27(5): 862-871. [4] 王璐, 周海潇, 罗建, 等. 感应电动机电源切换的UPS逆变器控制策略[J]. 电力系统保护与控制, 2014, 42(24): 49-55. Wang Lu, Zhou Haixiao, Luo Jian, et al. Control strategy of UPS for the induction motor[J]. Power System Protection and Control, 2014, 42(24): 49-55. [5] Balamourougan V, Sidhu T S, Kasztenny B, et al. Robust technique for fast and safe transfer of power plant auxiliaries[J]. IEEE Transactions on Energy Conversion, 2006, 21(2): 541-551. [6] Pettigrew R D, Powell P, Burnworth J, et al. Motor bus transfer[J]. IEEE Transactions on Power Delivery, 1993, 8(4): 1747-1758. [7] 崔学深, 张自力, 李和明, 等. 感应电机电源切换中残压和电压差的研究及最优切换策略[J]. 电工技术学报, 2015, 30(2): 162-171. Cui Xueshen, Zhang Zili, Li Heming, et al. Residual voltage, voltage difference and optimal switching strategy during the power switching of induction motors[J]. Transactions of China Electrotechnical Society, 2015, 30(2): 162-171. [8] Tian Bing, Mao Chengxiong, Lu Jiming, et al. 400V/ 1000kV·A hybrid automatic transfer switch[J]. IEEE Transactions on Industrial Electronics, 2013, 60(12): 5422-5435. [9] Beckwith T R, Hartmann W G. Motor bus transfer: considerations and methods[J]. IEEE Transactions on Industry Applications, 2006, 42(2): 602-611. [10] Higgins T A, Snider W L, Young P L, et al. Report on bus transfer I assessment and application[J]. IEEE Transactions on Energy Conversion, 1990, 5(3): 462- 469. [11] Higgins T A, Young P L, Snider W L, et al. Report on bus transfer II computer modeling for bus transfer studies[J]. IEEE Transactions on Energy Conversion, 1990, 5(3): 470-476. [12] Young P L, Snider W L, Higgins T A, et al. Report on bus transfer III full scale testing and evaluation[J]. IEEE Transactions on Energy Conversion, 1990, 5(3): 477-484. [13] 高雅, 刘卫国, 骆光照. 大惯量负载永磁同步电机断电-寻优重投控制系统[J]. 电工技术学报, 2014, 29(5): 62-69. Gao Ya, Liu Weiguo, Luo Guangzhao. A large inertia load PMSM power down-rejoining on optimizing control system[J]. Transactions of China Electro- technical Society, 2014, 29(5): 62-69. [14] Young C C, Dunki-Jacobs J. The concept of in-phase transfer applied to industrial systems serving essential service motors[J]. American Institute of Electrical Engineers, Part II: Transactions of the Applications and Industry, 1961, 79(6): 508-518. [15] Kelly A R. Relay response to motor residual voltage during automatic transfers[J]. American Institute of Electrical Engineers, Part II: Transactions of the Applications and Industry, 1955, 74(4): 245-252. [16] 王松岑, 汤广福, 于坤山, 等. 新型中压固态切换开关的研究[J]. 电网技术, 2006, 30(增): 311-315. Wang Songcen, Tang Guangfu, Yu Kunshan, et al. Development of a novel medium voltage solid state transfer switch[J]. Power System Technology, 2006, 30(S): 311-315. [17] 崔学深, 罗应立, 周振华, 等. 感应电动机的电源快速软投入技术及其初始瞬态解析[J]. 中国电机工程学报, 2009, 29(6): 93-99. Cui Xueshen, Luo Yingli, Zhou Zhenhua, et al. Rapid soft re-switching technique of three-phase induction motors and its initial transient analytical method[J]. Proceedings of the CSEE, 2009, 29(6): 93-99. [18] 吴玲. 感应电机在电源切换时分相投入控制的理论研究[D]. 北京: 华北电力大学, 2009. [19] 李卫国, 崔学深, 罗应立, 等. 感应电机快速投入控制参数的解析[J]. 电工技术学报, 2013, 28(3): 154-160. Li Weiguo, Cui Xueshen, Luo Yingli, et al. Analytical method on control parameter of quick switching on induction motor load[J]. Transactions on China Electrotechnical Society, 2013, 28(3): 154-160. [20] 李和明, 张自力, 崔学深, 等. 晶闸管-电动机系统不对称瞬态建模及解析[J]. 电工技术学报, 2013, 28(8): 241-249. Li Heming, Zhang Zili, Cui Xueshen, et al. Asymmetrical transient modeling and analytical research of SCR-motor systems[J]. Transactions of China Electrotechnical Society, 2013, 28(8): 241- 249. [21] 崔学深. 感应电机电源软投入相关理论及节能控制新技术的研究[D]. 北京: 华北电力大学, 2009. [22] 马明. 塔塔利亚与三次方程的故事[J]. 数学史话, 2001 (27): 14-16. Ma Ming. The story of Tatalia and the cubic equation[J]. Myth of Mathematics, 2001(27): 14-16. [23] 罗炜, 崔学深, 罗应立. 感应电机不对称暂态分析中一类一元三次特征方程及其近似求解[J]. 中国电机工程学报, 2008, 28(27): 126-130. Luo Wei, Cui Xueshen, Luo Yingli. Approximate solutions of a class of cubic characteristic equations in asymmetric transient analysis of induction machines[J]. Proceedings of the CSEE, 2008, 28(27): 126-130. [24] Novotny D W, Lipo T A. Vector control and dyna- mics of AC drives[M]. New York: Clarendon Press Oxfard, 1996. [25] Krause P C, Wasynczuk O, Sudhoff S D. Analysis of electric machinery and drive systems[M]. New York: Wiley-IEEE Press, 2002.